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Erschienen in: BMC Musculoskeletal Disorders 1/2013

Open Access 01.12.2013 | Research article

The effects of commercially available footwear on foot pain and disability in people with gout: a pilot study

verfasst von: Keith Rome, Sarah Stewart, Alain C Vandal, Peter Gow, Peter McNair, Nicola Dalbeth

Erschienen in: BMC Musculoskeletal Disorders | Ausgabe 1/2013

Abstract

Background

There is limited evidence on non-pharmacological interventions for gout. The aim of the study was to determine whether a footwear intervention can reduce foot pain and musculoskeletal disability in people with gout.

Methods

Thirty-six people with gout participated in a prospective intervention study over 8 weeks. Participants selected one of 4 pairs of shoes and thereafter wore the shoes for 8 weeks. The primary outcome was foot pain using a 100 mm visual analogue scale. Secondary outcomes related to function and disability were also analysed.

Results

The Cardio Zip shoe was selected by 58% of participants. Compared with baseline, overall scores for all shoes at 8-weeks demonstrated a decrease in foot pain (p = 0.03), general pain (p = 0.012), Health Assessment Questionnaire (HAQ)-II (p = 0.016) and Leeds Foot Impact Scale (LFIS) impairment subscale (p = 0.03). No significant differences were observed in other patient reported outcomes including patient global assessment, LFIS activity subscale, and Lower Limb Task Questionnaire subscales (all p > 0.10). We observed significant improvements between baseline measurements using the participants’ own shoes and the Cardio Zip for foot pain (p = 0.002), general pain (p = 0.001), HAQ-II (p = 0.002) and LFIS impairment subscale (p = 0.004) after 8 weeks. The other three shoes did not improve pain or disability.

Conclusions

Footwear with good cushioning, and motion control may reduce foot pain and disability in people with gout.
Hinweise

Electronic supplementary material

The online version of this article (doi:10.​1186/​1471-2474-14-278) contains supplementary material, which is available to authorized users.

Competing interests

The authors declare that they have no competing interests.

Authors’ contributions

SS carried out the data collection. AV performed the statistical analysis and KR, PMcN, PG, AV and ND contributed to the interpretation of the data. KR, PMcN, PG, AV and ND participated in the design of the study and drafting of the manuscript. All authors read and approved the final manuscript.

Background

Gout is an inflammatory arthritis that occurs due to the deposition of monosodium urate crystals in joints and periarticular tissues[1]. Gout displays a striking predilection to affect the feet, particularly the first metatarsophalangeal joint (1MTPJ), Achilles tendon, midfoot and ankle[26]. People with gout experience greater foot pain, impairment and disability than age-matched controls[7]. This degree of foot-related pain, impairment and disability is similar to that reported in people with early and established rheumatoid arthritis (RA)[8, 9].
The non-pharmacological management goals for people with foot-related rheumatic diseases are pain management, preservation of foot function and patient mobility[10, 11]. One of the therapeutic components that may achieve these goals is footwear. Our group has reported that poorly fitting shoes are linked to foot pain in gout and those with poor footwear have higher foot-related impairment[12]. We further reported that people with gout frequently wear shoes that are either too long or too short, have little cushioning and are more than 12 months old[12]. To date, no research has examined footwear as an intervention for people with gout. The aim of this study was to determine whether a footwear intervention can reduce foot pain and musculoskeletal disability in people with gout.

Methods

A prospective intervention study design was utilised. Thirty-six participants were recruited from the rheumatology and podiatric rheumatology clinics based in Auckland District Health Board and Counties Manukau District Health Boards, Auckland, New Zealand (Figure 1). Participants included in the study (i) were over 18 years of age, (ii) had a history of gout according to ACR classification criteria[13], and (iii) were able to walk a minimum of 10 m without the use of a walking aid. People were excluded in the study if they had (i) received any medication for foot pain in the previous 4 weeks, (ii) an acute gout flare at the time of assessment, (iii) history of surgery to the foot, or (iv) received treatment with foot orthoses or footwear within the previous 3 months. The Northern Regional X Ethics approved this study and local institutional approval was also obtained. All participants provided written informed consent before inclusion into the study. The study was registered with the Australian New Zealand Clinical Trials Registry (ACTRN12612000735853).
Based upon data from a previous study examining the primary outcome: foot pain, for a reduction of 20 percentage points, with the power set at 80% and a per comparison significance level of 5%, 36 participants were required[14]. McNemar’s test was used for this determination, and is equivalent to the test of a single footwear pair contrast in the planned analysis. This was deemed sufficient for the purpose of sample size determination.

Footwear characteristics

Four black, laced walking shoes were selected for the study: Dunlop Asteroid, Dunlop Apollo, Helix Viper and the ASICS Gel Cardio Zip (Figure 2). Footwear characteristics were recorded for each shoe using a previously validated footwear assessment form[15], and are shown in Table 1. These shoes provided variations in footwear characteristics related to shock attenuation, motion control and width. Motion control included fixation of the upper to the foot, heel counter stiffness, and midfoot rigidity[15]. To develop a continuous scale to assess the quality of footwear in relation to motion control properties, each category from the motion control properties items were scored ranging from 0 to 11. Footwear which scores 11 would be considered to possess optimal motion control properties[15].
Table 1
Characteristics of study shoes 1
Characteristic
Cardio zip
Viper
Apollo
Asteroid
Upper materials
Leather & Synthetic
Synthetic
Synthetic
Synthetic
Outsole materials
Rubber
Phylon
Synthetic
Rubber
Tread pattern
Textured
Textured
Textured
Textured
Weight (kg)
0.406
0.340
0.353
0.380
Length (cm)
29.5
29.8
29.9
30.0
Heel Height (cm)
3.9
3.9
2.0
2.2
Forefoot height (cm)
2.3
2.6
2.2
2.2
Longitudinal Profile (cm)
1.6
1.3
1.3
1.4
Last (°)
12
11
10
9
Fixation of upper to sole
Slip lasted
Board
Board
Board
Forefoot sole flexion point
At level of MTPJs
Proximal to MTPJ
Level of MTPJs
Distal to MTPJs
Density
Dual
Single
Single
Single
Heel counter stiffness
Rigid
Moderate
Minimal
Minimal
Midfoot sole sagittal stability
Moderate
Minimal
Minimal
Minimal
Midfoot sole frontal stability
Moderate
Minimal
Minimal
Minimal
Motion Control Scale (0–11)
9
4
3
3
Presence of cushioning
Heel/forefoot
Heel/forefoot
None
None
Lateral midsole hardness2
Firm (57)
Firm (54)
Firm (56)
Soft (49)
Medial midsole hardness2
Firm (53)
Firm (57)
Firm (44)
Firm (53)
Heel sole hardness2
firm (56)
Firm (64)
Hard (59)
Firm (65)
1All characteristics measured from standard shoe size 11, 2Sole hardness measured using a durometer.
At baseline (visit 1), the following clinical features were recorded: the number of foot tophi, the presence and site of subcutaneous tophi, age, gender, ethnicity, body mass index (BMI), disease duration, age of first episode, current pharmacological management, serum urate levels, age at first episode, self-reported flares in preceding 2 months, days off work in last 2 months, employment and history of cardiovascular disease and diabetes. The primary outcome for the study was foot pain using a 100 mm VAS pain scale. Secondary outcome measures included HAQ-II[16], general pain score (100 m VAS) and patient global assessment scale (100 mm VAS). The level of lower limb function was evaluated using the Lower Limb Task Questionnaire[17]. We measured foot disability and impairment using the 2 subscales of the Leeds Foot Impairment Score (LFIS): foot impairment/footwear restriction (LFISIF; range 0–21) and activity limitation/participation restriction (LFISAP; range 0–29)[18].

Study visits

At visit 1, all participants tried each of the four shoes in a randomly determined order. Randomization involved the presentation of one of a series of sealed envelopes indicating the order in which the footwear was to be assessed by the participant. The exterior of the footwear was masked with tape so the brand name and logos of the shoe would not be recognised. The masking was small so they did not cover any of the design features. In each pair of shoes, participants were asked to complete a circuit that included walking on carpet, on a hard level surface and ascending and descending stairs. To reduce fatigue, each participant was allowed to rest for 5 minutes between footwear. After each circuit, the participant was asked to consider the comfort, fit, style, sole and weight in relation to their normal footwear with a view to choosing a new pair of shoes that they would wear for the following 8 weeks.
At the completion of the baseline assessment, participants were asked to wear the shoes they chose for 8 weeks (visit 2). Each participant was given a diary to complete over this period, and were asked to record the amount of time the footwear was worn each day and to note any adverse events.

Data analysis

Gender, ethnicity, clinical characteristics such as current pharmacological management, history of hypertension, cardiovascular disease, diabetes, renal impairment were described as n (percentages). All other demographic characteristics were described as mean (SD).
Mixed effects regression was used as the primary analysis of all prospective study outcomes, using participants as random effects, and visit and footwear interaction as fixed effects. Mixed effects (ME) regression is a generalisation of paired t-tests. In particular, the p-values and confidence intervals for footwear-specific changes in Table 2 bear the same interpretation as those that would be obtained from paired-t inference. They are different in value however, as they use all data for full efficiency. ME regression enables the use of Visit 1 data from all participants to test for any specific footwear effect. This stands in contrast to using only the Visit 1 data of participants who selected a particular type of footwear, as would happen with an unmodified paired t-test. In doing so, ME regression still accounts for the association between Visit 1 and Visit 2 measurements for any given type of footwear. ME regression also enables correct inference regarding footwear differences and overall differences regardless of footwear type, all under a single inferential setting.
Table 2
Baseline clinical characteristics
 
Value
Age, years, mean (SD)
57 (13)
Male, n (%)
33 (92%)
Ethnicity, n (%)
15 (42%) European
7 (19%) Māori
9 (25%) Pacific
5 (14%) Asian
BMI, (kg/m2), mean (SD)
34 (8)
Cardiovascular disease, n (%)
16 (44%)
Type 2 diabetes, n (%)
7 (19%)
Diuretic use, n (%)
9 (25%)
Urate-lowering therapy use, n (%)
34 (94%)
Colchicine use, n (%)
23 (64%)
Prednisone use, n (%)
10 (28%)
NSAID use, n (%)
22 (61%)
Serum urate, mmol/l, mean (SD)
0.39 (0.13)
Disease duration, years, mean (SD)
15 (11)
Age at first episode, years, mean (SD)
42 (19)
Self-reported flares in preceding 2 months, mean (SD)
3.9 (10.8)
Days off work in last two months, mean (SD)
0.3 (1.5)
In paid employment, n (%)
17 (47%)
Aspirate proven, n (%)
11 (31%)
Foot tophus count, mean (SD)
1.3 (1.8)
Total tophus count, mean (SD)
4.5 (4.1)
Any subcutaneous tophus, n (%)
26 (72%)
The fixed effect structure (visit 1 with no interaction vs. visit 2 in interaction with footwear) was designed to reflect the study design, since baseline measurements were based on participants’ own shoes. Means and their differences were reported as point estimates and confidence intervals. P-values were reported to test the fitted models against three null hypotheses: that of no change between visits for a particular type of footwear; that of equal change between visits for each type of footwear; and that of no change between visits for any type of footwear. Missing outcome data requires no special treatment in mixed regression settings. The significance level for testing was established at 0.05 against two-sided alternatives. Per comparison error rate (no adjustment for multiple testing) was used, but raw p-values presented in all cases. The confidence level for the production of unbiased confidence intervals was set at 0.95. Analyses were performed using SPSS V20.0, R version 2.15.0 for Windows and SAS/STAT software, Version 9.3 of the SAS System for Windows.

Results

Clinical characteristics at baseline are shown in Table 2. Participants were predominantly middle-aged men, with high rates of obesity and co-morbidities such as hypertension, diabetes and cardiovascular disease. Subcutaneous tophi affecting the 1MTPJ were observed in 12/36 (33%) participants and in the Achilles tendon in 12/36 (33%) participants. Thirty four (94%) participants were on urate lowering therapy, most commonly allopurinol in 29/34 (85%).
High scores for foot pain, disability and impairment were observed at visit 1 (Table 3). Over 50% of the participants’ currently owned shoes were 12 months old or older. Based upon participants’ preference, the Cardio Zip (n = 21, 58%) was the most popular new shoe, followed by the Apollo (n = 7, 19%), then Asteroid (n = 5, 14%) and finally the Viper (n = 3, 8%). Follow-up data including study diaries were available for 30 (83%) participants. Six participants (17%) were lost to follow-up, with 2 participants unable to attend due to family commitments, 1 with gout flare, 1 dissatisfied with shoes, and 2 unable to be contacted. The 30 participants who completed the study diaries wore their chosen shoes for a mean (SD) of 26 (10) hours per week. No adverse events associated with the shoes were reported. During the 8 week trial, one participant commenced allopurinol therapy.
Table 3
Differences between visit 1 and visit 2 for patient-reported outcomes
Parameter
Visit and footwear
Mean
Difference
p-values*
   
Point est.
95% CI
Footwear-specific change
Change differs by footwear
Any change
Foot Pain VAS
Visit 1 (Own)
37.8
      
Visit 2 (Asteroid)
20.0
−17.8
−44.0
8.3
0.19
0.47
0.028
Visit 2 (Apollo)
34.6
−3.2
−29.4
22.9
0.81
Visit 2 (Helix)
34.7
−3.1
−33.3
27.0
0.84
Visit 2 (Cardio Zip)
16.0
−21.9
−34.5
−9.3
0.002
Pain VAS
Visit 1 (Own)
35.7
      
Visit 2 (Asteroid)
45.1
9.4
−11.5
30.2
0.39
0.07
0.012
Visit 2 (Apollo)
34.0
−1.7
−22.6
19.1
0.87
Visit 2 (Viper)
33.3
−2.4
−26.5
21.6
0.84
Visit 2 (Cardio Zip)
16.3
−19.4
−29.3
−9.6
0.001
Patient global assessment VAS
Visit 1 (Own)
37.9
      
Visit 2 (Asteroid)
30.9
−7.1
−28.2
14.1
0.52
0.61
0.39
Visit 2 (Apollo)
37.1
−0.8
−22.0
20.4
0.94
Visit 2 (Viper)
16.2
−21.7
−46.1
2.6
0.09
Visit 2 (Cardio Zip)
32.5
−5.4
−15.6
4.8
0.31
HAQ-II
Visit 1 (Own)
0.8
      
Visit 2 (Asteroid)
0.7
−0.1
−0.5
0.2
0.38
0.07
0.016
Visit 2 (Apollo)
1.0
0.2
−0.1
0.5
0.15
Visit 2 (Helix)
0.7
−0.1
−0.5
0.2
0.55
Visit 2 (Cardio Zip)
0.5
−0.3
−0.4
−0.1
0.002
LFIS
Visit 1 (Own)
10.6
      
Visit 2 (Asteroid)
11.3
0.7
−2.6
4.0
0.68
0.37
0.03
(Impairment/footwear)
Visit 2 (Apollo)
9.1
−1.6
−4.8
1.7
0.35
Visit 2 (Viper)
8.2
−2.4
−6.2
1.4
0.22
Visit 2 (Cardio Zip)
8.1
−2.5
−4.1
−1.0
0.004
LFIS
Visit 1 (Own)
15.6
      
Visit 2 (Asteroid)
10.9
−4.7
−9.5
0.2
0.07
0.46
0.11
(Activities/Participation)
Visit 2 (Apollo)
15.6
0.0
−4.8
4.9
1.00
Visit 2 (Viper)
11.0
−4.6
−10.2
1.0
0.12
Visit 2 (Cardio Zip)
13.7
−1.8
−4.1
0.4
0.12
LFIS (total)
Visit 1 (Own)
26.2
      
Visit 2 (Asteroid)
22.6
−3.6
−10.8
3.5
0.33
0.80
0.064
Visit 2 (Apollo)
24.5
−1.7
−8.8
5.5
0.65
Visit 2 (Viper)
19.1
−7.1
−15.4
1.2
0.11
Visit 2 (Cardio Zip)
21.8
−4.4
−7.7
−1.0
0.02
LLTQ
Visit 1 (own)
28.6
      
Visit 2 (Asteroid)
33.3
4.6
0.1
9.1
0.05
0.08
0.11
Visit 2 (Apollo)
24.6
−4.1
−8.6
0.4
0.09
(Daily)
Visit 2 (Viper)
28.7
0.1
−5.1
5.2
0.98
Visit 2 (Cardio Zip)
29.8
1.1
−1.0
3.2
0.30
LLTQ
Visit 1 (Own)
18.0
      
Visit 2 (Asteroid)
24.0
6.0
−1.9
13.8
0.15
0.11
0.11
Visit 2 (Apollo)
13.8
−4.2
−12.1
3.6
0.30
  
(Recreational)
Visit 2 (Viper)
21.3
3.2
−5.8
12.3
0.49
  
 
Visit 2 (Cardio Zip)
14.1
−3.9
−7.6
−0.2
0.05
  
Note: The p-values address the following null hypotheses. Footwear specific change: tests against a null hypothesis of no change between visits 1 and 2 for the target footwear only; Change differs by footwear: tests against a null hypothesis of similar change between visits 1 and 2 for any footwear; any change: tests against a null hypothesis of no change between visits 1 and 2.
The patient-reported outcomes in the entire group at baseline and follow-up are shown in Table 3. After 8 weeks, there were significant improvements from baseline in the entire group in foot pain (p = 0.03), general pain (p = 0.012), HAQ II scores (p = 0.016) and LFISIF (p = 0.03). No significant differences were observed in the patient global assessment scores (p = 0.39), LFISAP (p = 0.11) activities of daily living using the Lower Limb Task Questionnaire (p = 0.11) or recreational activities using the Lower Limb Task Questionnaire (p = 0.11). We found significant improvements between the baseline visit scores (participants own shoes) and eight week scores for the Cardio Zip for foot pain (p = 0.002), general pain (p = 0.001), HAQ-II (p = 0.002) and LFISIF (p = 0.004). Improvements in foot pain or other patient reported outcomes were not observed in the other shoes. Figure 3 illustrates the differences of the four shoes for foot pain, general pain, HAQ-II and LFISIF.

Discussion

This is the first intervention study examining the role of footwear in people with gout. In this study, most participants selected the Cardio Zip. We found that the Cardio Zip shoe significantly reduced foot pain, general pain and foot impairment over 8 weeks.
A number of features in the Cardio Zip shoe may be responsible for the reduction in pain and disability. The medial size zip closure in the Cardio Zip shoe enhances the ease of putting on and taking off the shoe. The Cardio Zip shoe also uses a dual-density midsole system to control motion. Barton[15] reported that the motion control properties of footwear are considered an important shoe feature in the management of patients with RA and musculoskeletal injuries. Another feature of the Cardio Zip shoe that may have reduced foot pain was the use of gel cushioning in the heel and forefoot regions to improve shock attenuation. This shoe element was not present in the other three shoe types. Dufour[19] reported that shoes that have softer out-soles, and mid-soles, or insoles that use elements of gel, foamed polyurethane, or air chambers can smooth (low pass filter) the shock wave associated with foot-strike. Finally, the Cardio Zip shoe midsole/outsole has a 'rocker' type system to create a smoother heel to toe transition during the gait cycle while maintaining both stability and comfort. Previous studies have reported that the toe rocker-soled shoe is thought to reduce pain by decreasing forefoot loading and promoting a normal heel-toe motion during gait[2022]. Cho[20] reported that rocker-soled shoes with comfortable insoles may be enough to reduce foot pain and increase foot function for people with RA.
We found our participants wore the chosen shoes an average of 26 hours/week over the 8-week trial, demonstrating good adherence. Similar findings have been reported in RA studies using foot orthoses[2327]. Patient acceptability and adherence are integral components of treatment success with footwear or foot orthoses interventions[28]. Williams[10] also reported significant improvements in foot pain associated with RA when patients were involved in the choice of their shoes, as compared to having a particular shoe prescribed to them. Given the number of factors that influence shoe choice in people with gout[12], it would be important that patients are educated in the key elements/concepts that they should look for when buying shoes in the retail sector. In agreement with our previous findings[12], the majority of participants’ own shoes would be regarded as old, and hence likely to be limited in their ability to control foot motion, and cushion the foot sufficiently.
We acknowledge that the study had limitations. The researcher collecting the outcome measures was not blinded to the shoes that the patient had chosen. However, the study protocol stated that the researcher should make no comments concerning the patient’s choice. The period over which shoes were worn was short and the shoes could be considered as being in a relatively new state after 8 weeks wear. A longer study would allow greater understanding of the effects of wear on the structural and mechanical properties of materials responsible for motion control and shock absorption, and the influence of these properties on long-term pain reduction. The high frequency of tophaceous disease reflects the hospital setting and the complexity of gout seen in Auckland, New Zealand particularly in the Māori and Pacific people. This may limit the generalisability of the findings to other populations with gout. Furthermore, it is unclear whether people with different stages of the disease would benefit from a similar intervention with footwear. Using the self-reported diaries to assess adherence was patient-reported only and therefore may be susceptible to bias/error.

Conclusions

In conclusion, this is the first reported trial of a footwear intervention for people with gout. The findings suggest that a shoe with adequate motion control, cushioning, stability may reduce foot pain and musculoskeletal disability. Clinicians should consider footwear characteristics when advising people with gout on foot care. In addition to excellent control of serum urate concentrations using pharmacological treatment, footwear interventions may be of benefit in reducing foot pain and disability in people with gout. Future research is needed to observe the long-term impact of footwear on foot pain and musculoskeletal disability in people with gout. Future work should also consider cost-effectiveness analyses of footwear including studies to assess the impact of gout on indirect costs and quality of life on people with gout and their families.

Acknowledgements

We thank Maria Lobo and Hazra Sahid (Rheumatology Nurse Specialists) for their assistance with recruiting patients into the study. This work was funded by the Health Research Council of New Zealand (12/622).
This article is published under license to BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://​creativecommons.​org/​licenses/​by/​2.​0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Competing interests

The authors declare that they have no competing interests.

Authors’ contributions

SS carried out the data collection. AV performed the statistical analysis and KR, PMcN, PG, AV and ND contributed to the interpretation of the data. KR, PMcN, PG, AV and ND participated in the design of the study and drafting of the manuscript. All authors read and approved the final manuscript.
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Literatur
1.
Zurück zum Zitat Harrold LR, Saag KG, Yood RA, Mikuls TR, Andrade SE, Fouayzi H, et al.: Validity of gout diagnoses in administrative data. Arthritis Care Res. 2007, 57: 103-108. 10.1002/art.22474.CrossRef Harrold LR, Saag KG, Yood RA, Mikuls TR, Andrade SE, Fouayzi H, et al.: Validity of gout diagnoses in administrative data. Arthritis Care Res. 2007, 57: 103-108. 10.1002/art.22474.CrossRef
2.
Zurück zum Zitat Dalbeth N, Kalluru R, Aati O, Horne A, Doyle AJ, McQueen FM: Tendon involvement in the feet of patients with gout: a dual-energy CT study. Ann Rheum Dis. 2013, in print Dalbeth N, Kalluru R, Aati O, Horne A, Doyle AJ, McQueen FM: Tendon involvement in the feet of patients with gout: a dual-energy CT study. Ann Rheum Dis. 2013, in print
3.
Zurück zum Zitat Abhishek A, Roddy E, Zhang W, Doherty M: Are hallux valgus and big toe pain associated with impaired quality of life? A cross-sectional study. Osteoarthritis Cartilage. 2010, 18: 923-926. 10.1016/j.joca.2010.03.011.CrossRefPubMed Abhishek A, Roddy E, Zhang W, Doherty M: Are hallux valgus and big toe pain associated with impaired quality of life? A cross-sectional study. Osteoarthritis Cartilage. 2010, 18: 923-926. 10.1016/j.joca.2010.03.011.CrossRefPubMed
4.
Zurück zum Zitat Roddy E, Zhang W, Doherty M: Gout and nodal osteoarthritis: a case–control study. Rheumatol. 2008, 47: 732-733. 10.1093/rheumatology/ken087.CrossRef Roddy E, Zhang W, Doherty M: Gout and nodal osteoarthritis: a case–control study. Rheumatol. 2008, 47: 732-733. 10.1093/rheumatology/ken087.CrossRef
5.
Zurück zum Zitat Dalbeth N, Doyle A, Boyer L, Rome K, Survepalli D, Sanders A, et al.: Development of a computed tomography (CT) method of scoring bone erosion in the foot and ankle of patients with gout: validation and clinical implications. Rheumatol. 2011, 50: 410-416. 10.1093/rheumatology/keq335.CrossRef Dalbeth N, Doyle A, Boyer L, Rome K, Survepalli D, Sanders A, et al.: Development of a computed tomography (CT) method of scoring bone erosion in the foot and ankle of patients with gout: validation and clinical implications. Rheumatol. 2011, 50: 410-416. 10.1093/rheumatology/keq335.CrossRef
6.
Zurück zum Zitat Roddy E, Zhang W, Doherty M: Are joints affected by gout also affected by osteoarthritis?. Ann Rheum Dis. 2007, 66: 1374-1377. 10.1136/ard.2006.063768.CrossRefPubMedPubMedCentral Roddy E, Zhang W, Doherty M: Are joints affected by gout also affected by osteoarthritis?. Ann Rheum Dis. 2007, 66: 1374-1377. 10.1136/ard.2006.063768.CrossRefPubMedPubMedCentral
7.
Zurück zum Zitat Rome K, Supervalli D, Sanders A, McQueen FM, McNair P, Dalbeth N: Functional and biomechanical characteristics of foot disease in chronic gout: a case–control study. Clin Biomech. 2011, 26: 90-94. 10.1016/j.clinbiomech.2010.09.006.CrossRef Rome K, Supervalli D, Sanders A, McQueen FM, McNair P, Dalbeth N: Functional and biomechanical characteristics of foot disease in chronic gout: a case–control study. Clin Biomech. 2011, 26: 90-94. 10.1016/j.clinbiomech.2010.09.006.CrossRef
8.
Zurück zum Zitat Turner DE, Helliwell PS, Emery P, Woodburn J: The impact of rheumatoid arthritis on foot function in the early stages of disease: a clinical case series. BMC Musculoskeletal Disord. 2006, 21: 102-107.CrossRef Turner DE, Helliwell PS, Emery P, Woodburn J: The impact of rheumatoid arthritis on foot function in the early stages of disease: a clinical case series. BMC Musculoskeletal Disord. 2006, 21: 102-107.CrossRef
9.
Zurück zum Zitat Turner DE, Helliwell PS, Siegel KL: Biomechanics of the foot in rheumatoid arthritis: Identifying abnormal function and the factors associated with localised disease ‘impact’. Clin Biomech. 2009, 23: 93-100.CrossRef Turner DE, Helliwell PS, Siegel KL: Biomechanics of the foot in rheumatoid arthritis: Identifying abnormal function and the factors associated with localised disease ‘impact’. Clin Biomech. 2009, 23: 93-100.CrossRef
10.
Zurück zum Zitat Williams AE, Rome K, Nester CJ: Clinical trial of specialist footwear for patients with rheumatoid arthritis. Rheumatol. 2007, 46: 302-307.CrossRef Williams AE, Rome K, Nester CJ: Clinical trial of specialist footwear for patients with rheumatoid arthritis. Rheumatol. 2007, 46: 302-307.CrossRef
11.
Zurück zum Zitat Woodburn J, Hennessy K, Steultjens MPM, McInnes IB, Turner DE: Looking through the 'window of opportunity': is there a new paradigm of podiatry care on the horizon in early rheumatoid arthritis?. J Foot Ankle Res. 2010, 3: 8-10.1186/1757-1146-3-8.CrossRefPubMedPubMedCentral Woodburn J, Hennessy K, Steultjens MPM, McInnes IB, Turner DE: Looking through the 'window of opportunity': is there a new paradigm of podiatry care on the horizon in early rheumatoid arthritis?. J Foot Ankle Res. 2010, 3: 8-10.1186/1757-1146-3-8.CrossRefPubMedPubMedCentral
12.
Zurück zum Zitat Rome K, Frecklington M, McNair PJ, Gow P, Dalbeth N: Footwear characteristics and factors influencing footwear choice in patients with gout. Arthritis Care Res. 2011, 63: 1599-1604. 10.1002/acr.20582.CrossRef Rome K, Frecklington M, McNair PJ, Gow P, Dalbeth N: Footwear characteristics and factors influencing footwear choice in patients with gout. Arthritis Care Res. 2011, 63: 1599-1604. 10.1002/acr.20582.CrossRef
13.
Zurück zum Zitat Wallace SL, Robinson H, Masi AT: Preliminary criteria for the classification of the acute arthritis of primary gout. Arthritis Rheum. 1977, 20: 895-900. 10.1002/art.1780200320.CrossRefPubMed Wallace SL, Robinson H, Masi AT: Preliminary criteria for the classification of the acute arthritis of primary gout. Arthritis Rheum. 1977, 20: 895-900. 10.1002/art.1780200320.CrossRefPubMed
14.
Zurück zum Zitat Landorf KB, Radford JA, Hudson S: Minimal Important Difference (MID) of two commonly used outcome measures for foot problems. J Foot Ankle Res. 2010, 3: 7-10.1186/1757-1146-3-7.CrossRefPubMedPubMedCentral Landorf KB, Radford JA, Hudson S: Minimal Important Difference (MID) of two commonly used outcome measures for foot problems. J Foot Ankle Res. 2010, 3: 7-10.1186/1757-1146-3-7.CrossRefPubMedPubMedCentral
15.
Zurück zum Zitat Barton CJ, Bonanno D, Menz HB: Development and evaluation of a tool for the assessment of footwear characteristics. J Foot Ankle Res. 2009, 2: 10-10.1186/1757-1146-2-10.CrossRefPubMedPubMedCentral Barton CJ, Bonanno D, Menz HB: Development and evaluation of a tool for the assessment of footwear characteristics. J Foot Ankle Res. 2009, 2: 10-10.1186/1757-1146-2-10.CrossRefPubMedPubMedCentral
16.
Zurück zum Zitat Bruce B, Fries JF: The Health Assessment Questionnaire. Clin Exp Rheumatol. 2005, S39: 14-18. Bruce B, Fries JF: The Health Assessment Questionnaire. Clin Exp Rheumatol. 2005, S39: 14-18.
17.
Zurück zum Zitat McNair PJ, Prapavessis H, Collier J, Bassett S, Bryant A, Larmer P: The lower-limb tasks questionnaire: an assessment of validity, reliability, responsiveness, and minimal important differences. Arch Phys Med Rehab. 2007, 88: 993-1001. 10.1016/j.apmr.2007.05.008.CrossRef McNair PJ, Prapavessis H, Collier J, Bassett S, Bryant A, Larmer P: The lower-limb tasks questionnaire: an assessment of validity, reliability, responsiveness, and minimal important differences. Arch Phys Med Rehab. 2007, 88: 993-1001. 10.1016/j.apmr.2007.05.008.CrossRef
18.
Zurück zum Zitat Helliwell P, Reay N, Gilworth G, Redmond A, Slade A, Tenant A, et al.: Development of a foot impact scale for rheumatoid arthritis. Arthritis Rheum. 2005, 53: 418-422. 10.1002/art.21176.CrossRefPubMed Helliwell P, Reay N, Gilworth G, Redmond A, Slade A, Tenant A, et al.: Development of a foot impact scale for rheumatoid arthritis. Arthritis Rheum. 2005, 53: 418-422. 10.1002/art.21176.CrossRefPubMed
19.
20.
Zurück zum Zitat Cho NS, Hwang JH, Chang HJ: Randomized controlled trial for clinical effects of varying types of insoles combined with specialized shoes in patients with rheumatoid arthritis of the foot. Clin Rehab. 2009, 23: 512-521. 10.1177/0269215508101737.CrossRef Cho NS, Hwang JH, Chang HJ: Randomized controlled trial for clinical effects of varying types of insoles combined with specialized shoes in patients with rheumatoid arthritis of the foot. Clin Rehab. 2009, 23: 512-521. 10.1177/0269215508101737.CrossRef
21.
Zurück zum Zitat Bagherzadeh Cham M, Ghasemi MS, Forough B, Sanjari MA, Zabihi Yeganeh M, Eshraghi A: Effect of rocker shoes on pain, disability and activity limitation in patients with rheumatoid arthritis. Prosthet Orthot Int. 2013, Aug 28. [Epub ahead of print] Bagherzadeh Cham M, Ghasemi MS, Forough B, Sanjari MA, Zabihi Yeganeh M, Eshraghi A: Effect of rocker shoes on pain, disability and activity limitation in patients with rheumatoid arthritis. Prosthet Orthot Int. 2013, Aug 28. [Epub ahead of print]
22.
Zurück zum Zitat Fong DT, Pang KY, Chung MM, Hung AS, Chan KM: Evaluation of combined prescription of rocker sole shoes and custom-made foot orthoses for the treatment of plantar fasciitis. Clin Biomech. 2012, 27: 1072-1077. 10.1016/j.clinbiomech.2012.08.003.CrossRef Fong DT, Pang KY, Chung MM, Hung AS, Chan KM: Evaluation of combined prescription of rocker sole shoes and custom-made foot orthoses for the treatment of plantar fasciitis. Clin Biomech. 2012, 27: 1072-1077. 10.1016/j.clinbiomech.2012.08.003.CrossRef
23.
Zurück zum Zitat Hennessy K, Burns J, Penkala S: Reducing plantar pressure in rheumatoid arthritis: a comparison of running versus off-the-shelf orthopaedic footwear. Clin Biomech. 2007, 22: 917-923. 10.1016/j.clinbiomech.2007.04.011.CrossRef Hennessy K, Burns J, Penkala S: Reducing plantar pressure in rheumatoid arthritis: a comparison of running versus off-the-shelf orthopaedic footwear. Clin Biomech. 2007, 22: 917-923. 10.1016/j.clinbiomech.2007.04.011.CrossRef
24.
Zurück zum Zitat Williams AE, Nester CJ: Patient perceptions of stock footwear design features. Prosthetic Orth Int. 2006, 30: 61-71. 10.1080/03093640600574425.CrossRef Williams AE, Nester CJ: Patient perceptions of stock footwear design features. Prosthetic Orth Int. 2006, 30: 61-71. 10.1080/03093640600574425.CrossRef
25.
Zurück zum Zitat Chalmers AC, Busby C, Goyert J, Porter B, Schulzer M: Metatarsalgia and rheumatoid arthritis: a randomised, single blind, sequential trial comparing two types of foot orthoses and supportive shoes. J Rheumatol. 2000, 27: 1643-1647.PubMed Chalmers AC, Busby C, Goyert J, Porter B, Schulzer M: Metatarsalgia and rheumatoid arthritis: a randomised, single blind, sequential trial comparing two types of foot orthoses and supportive shoes. J Rheumatol. 2000, 27: 1643-1647.PubMed
26.
Zurück zum Zitat Conrad KJ, Budiman-Mak E, Roach KE, Hedeker D: Impacts of foot orthoses on pain and disability in rheumatoid arthritis. Clin Epidemiol. 1996, 49: 1-7. 10.1016/0895-4356(96)00534-3.CrossRef Conrad KJ, Budiman-Mak E, Roach KE, Hedeker D: Impacts of foot orthoses on pain and disability in rheumatoid arthritis. Clin Epidemiol. 1996, 49: 1-7. 10.1016/0895-4356(96)00534-3.CrossRef
27.
Zurück zum Zitat Budiman-Mak E, Conrad KJ, Roach KE, et al.: Can foot orthoses prevent hallux valgus deformity in rheumatoid arthritis? A randomised controlled clinical trial. J Clin Rheumatol. 1995, 1: 313-320. 10.1097/00124743-199512000-00001.CrossRefPubMed Budiman-Mak E, Conrad KJ, Roach KE, et al.: Can foot orthoses prevent hallux valgus deformity in rheumatoid arthritis? A randomised controlled clinical trial. J Clin Rheumatol. 1995, 1: 313-320. 10.1097/00124743-199512000-00001.CrossRefPubMed
28.
Zurück zum Zitat Woodburn J, Barker S, Helliwell PS: A randomised controlled trial of foot orthoses in rheumatoid arthritis. J Rheumatol. 2002, 29: 1377-1383.PubMed Woodburn J, Barker S, Helliwell PS: A randomised controlled trial of foot orthoses in rheumatoid arthritis. J Rheumatol. 2002, 29: 1377-1383.PubMed
Metadaten
Titel
The effects of commercially available footwear on foot pain and disability in people with gout: a pilot study
verfasst von
Keith Rome
Sarah Stewart
Alain C Vandal
Peter Gow
Peter McNair
Nicola Dalbeth
Publikationsdatum
01.12.2013
Verlag
BioMed Central
Erschienen in
BMC Musculoskeletal Disorders / Ausgabe 1/2013
Elektronische ISSN: 1471-2474
DOI
https://doi.org/10.1186/1471-2474-14-278

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