Background
Methods
Search strategy
Selection of studies
Inclusion criteria
- Comparison of the clinical outcomes of revised HTO versus primary TKA.
- Mean follow-up duration of at least 2 years.
- Evaluation of at least one of the following outcomes: Knee Society Score (KSS), 10-year survival rate, operative time, flexion and extension angles, infection rate, and radiographic results.
- Sufficient data for extraction and pooling (i.e., reporting of the mean, standard deviation, and number of subjects for continuous outcomes, and reporting of the number of subjects for dichotomous outcomes).
Data extraction
Statistical analysis
Results
Search results
References | Technique of HTO | No. of patients | No. of knees | Age (years) | Female/male | BMI (kg/m2) | Mean time interval between HTO and TKA (months) | Follow-up (years) | Outcome |
---|---|---|---|---|---|---|---|---|---|
Amendola (2010) [8] | RHTO-C(19), RHTO-O(5) | 24 | 29 | 68.5 | 19/5 | NA | 100.7 | 8.1 | KSS, flexion angle, femorotibial angle |
PTKA | 28 | 29 | 71 | NA | NA | – | 8.1 | ||
Badawy (2015) [9] | RHTO | NA | 1399 | 69 | NA | NA | NA | > 10 | Infections, 10-year survival rate |
PTKA | NA | 31077 | 71 | NA | NA | – | > 10 | ||
Bae (2017) [10] | RHTO-C | 29 | 32 | 68.3 | 29/0 | 26.6 | 150 | 6.2 | KSS, flexion and extension angle, femorotibial angle, IS ratio |
PTKA | 29 | 32 | 68.8 | 29/0 | 26.3 | – | 7.1 | ||
Bergenudd (1997) [11] | RHTO | 14 | 14 | 70 | NA | NA | 96 | 4–9 | Flexion angle, infections, femorotibial angle, operative time |
PTKA | 99 | 99 | 73 | NA | NA | – | 4–9 | ||
Cross (2014) [12] | RHTO | 43 | 43 | 54.2 | 12/32 | 33.36 | 106.2 | 8.47 | KSS, infections, operative time |
PTKA | 97 | 97 | 58.9 | 50/47 | 32.76 | – | 3.59 | ||
Efe (2010) [13] | RHTO-C | 41 | 41 | 69 | 20/21 | NA | 86 | 6.8 | KSS, Infections, flexion and extension angle, IS ratio, operative time |
PTKA | 41 | 41 | 73 | 24/17 | NA | – | 7.1 | ||
El-Galaly (2018) [14] | RHTO | 1044 | 1044 | 62 | 448/596 | NA | NA | > 10 | Infections, 10-year survival rate |
PTKA | 63762 | 63762 | 70 | 41142/22621 | NA | – | > 10 | ||
Haddad (2000) [15] | RHTO-C(42), RHTO-D(8) | 42 | 50 | 65 | 26/16 | NA | 87.6 | 6.2 | KSS, femorotibial angle, infections |
PTKA | 42 | 50 | 66 | 24/18 | NA | – | 6.2 | ||
Haslam (2007) [16] | RHTO-C | 40 | 51 | 78 | 20/19 | NA | 58 | 12.6 | Infections |
PTKA | 44 | 51 | 78 | 22/21 | NA | – | 12.6 | ||
Karabatsos (2002) [17] | RHTO-C | 20 | 17 | 64 | 10/10 | NA | 100.8 | 5.2 | Infections, operative time |
PTKA | 20 | 17 | 65 | 10/10 | NA | – | 4.7 | ||
Kazakos (2008) [18] | RHTO-C | 32 | 38 | 67.2 | 24/8 | NA | 87.6 | 4.5 | KSS, flexion and extension angle, femorotibial angle, IS ratio, operative time |
PTKA | 32 | 38 | 68.4 | 25/7 | NA | – | 4.5 | ||
Meding (2011) [19] | RHTO-C | 39 | 19 | 66.9 | 12/27 | NA | 104.4 | 16.7 | KSS, flexion and extension angle, femorotibial angle |
PTKA | 39 | 19 | 66.9 | 12/27 | NA | – | 16.6 | ||
Niinimäki (2014) [20] | RHTO | NA | 1036 | 64.3 | NA | NA | NA | > 10 | Infections, 10-year survival rate |
PTKA | NA | 4143 | 64.7 | NA | NA | – | > 10 | ||
Nizard (1998) [21] | RHTO | 55 | 57 | 71.8 | NA | NA | 116.4 | 4.5 | KSS, IS ratio, infections |
PTKA | NA | 57 | 70.5 | NA | NA | – | 4 | ||
Saragaglia (2015) [22] | RHTO-O | 40 | 45 | 69 | 10/30 | 29.7 | NA | 3.9 | KSS, flexion angle, operative time |
PTKA | 40 | 45 | 69 | 10/30 | 29 | – | 4.8 | ||
Toksvig-Larsen (1998) [23] | RHTO | 40 | 40 | 69 | 26/14 | NA | 120 | 10 | Operative time |
PTKA | 40 | 40 | 70 | 27/13 | NA | – | 10 |
References | KKS | KFS | 10-Survival rate | IS ratio | Femorotibial angle | Extension angle | Flexion angle | Operative time (min) | No of infections | |
---|---|---|---|---|---|---|---|---|---|---|
Amendola (2010) [8] | RHTO | 92.7 | 89.8 | – | – | 5.0° | – | 103° | – | – |
PTKA | 91 | 84 | – | – | 4.0° | – | 100° | – | – | |
Badawy (2015) [9] | RHTO | – | – | 92.6% | – | – | – | – | – | 10/1399 |
PTKA | – | – | 93.8% | – | – | – | – | – | 289/31077 | |
Bae (2017) [10] | RHTO | 90.6 | 88.8 | – | 1.13 | 6.0° | 0.2° | 129.2° | – | – |
PTKA | 89.4 | 88.8 | – | 1.14 | 5.4° | 0.2° | 130.6° | – | – | |
Bergenudd (1997) [11] | RHTO | – | – | – | – | 3° | – | 95° | 110 | 2/14 |
PTKA | – | – | – | – | 3° | – | 95° | 113 | 5/99 | |
Cross (2014) [12] | RHTO | 90 | 85 | – | – | – | – | – | – | 2/43 |
PTKA | 86 | 85 | – | – | – | – | – | – | 2/97 | |
Efe (2010) [13] | RHTO | 78.8 | 91 | – | 0.94 | – | 1.7° | 106° | 95 | 1/41 |
PTKA | 78.2 | 87.8 | – | 0.90 | – | 0.2° | 115° | 90 | 2/41 | |
El-Galaly (2018) [14] | RHTO | – | – | 91% | – | – | – | – | – | 21/1044 |
PTKA | – | – | 94% | – | – | – | – | – | 707/63762 | |
Haddad (2000) [15] | RHTO | 91 | 70 | – | – | – | 2° | 95° | – | 1/50 |
PTKA | 89 | 66 | – | – | – | 0° | 103° | – | 2/50 | |
Haslam (2007) [16] | RHTO | – | – | – | – | – | – | – | – | 3/51 |
PTKA | – | – | – | – | – | – | – | – | 0/51 | |
Karabatsos (2002) [17] | RHTO | – | – | – | – | – | – | – | 170 | 1/17 |
PTKA | – | – | – | – | – | – | – | 118 | 0/17 | |
Kazakos (2008) [18] | RHTO | 91.6 | 83 | – | 1.12 | 6.5° | 0.56° | 115.0° | 75 | – |
PTKA | 92.0 | 84.4 | – | 1.24 | 5.4° | 0.64° | 119.1° | 50 | – | |
Meding (2011) [19] | RHTO | 87.2 | 70.1 | – | – | 4.6° | − 0.1° | 110.6° | – | – |
PTKA | 90.3 | 72.6 | – | – | 4.6° | − 0.3° | 112.6° | – | – | |
Niinimäki (2014) [20] | RHTO | – | – | 91.8% | – | – | – | – | – | 14/1036 |
PTKA | – | – | 94.5% | – | – | – | – | – | 31/4143 | |
Nizard (1998) [21] | RHTO | 74.4 | 67.2 | – | 1.08 | – | – | – | – | 2/63 |
PTKA | 80.9 | 64.1 | – | 1.1 | – | – | – | – | 0/63 | |
Saragaglia (2015) [22] | RHTO | 87.5 | 96.5 | – | – | – | – | 117.5° | 73.5 | – |
PTKA | 87.5 | 97 | – | – | – | – | 120.5° | 68.5 | – | |
Toksvig-Larsen (1998) [23] | RHTO | – | – | – | – | – | – | – | 147 | – |
PTKA | – | – | – | – | – | – | – | 134 | – |