Background
Methods
Study population
MRI
Evaluation
Statistical methods
Results
Changes in the factors
Pain group | Improvement group | |||
---|---|---|---|---|
Initial MRI | Repeat MRI | Initial MRI | Repeat MRI | |
Bursal fluid accumulation | ||||
Grade 0 | 4 | 7 | 6 | 13 |
Grade 1 | 34 | 29 | 20 | 21 |
Grade 2 | 29 | 31 | 15 | 7 |
SSP retraction | ||||
(mm) | 24.4 ± 13.5 | 28.5 ± 14.1 | 17.1 ± 13.8 | 21.2 ± 14.4 |
SSC tendon tears | ||||
No tears | 26 | 20 | 29 | 28 |
Partial tears | 19 | 23 | 7 | 8 |
Complete tears | 22 | 29 | 5 | 5 |
ISP tendon tears | ||||
No tears | 41 | 33 | 33 | 30 |
Tears | 26 | 34 | 8 | 11 |
Goutallier classification in SSC | ||||
Grade 0 | 24 | 22 | 26 | 26 |
Grade 1 | 21 | 23 | 8 | 7 |
Grade 2 | 10 | 10 | 3 | 3 |
Grade 3 | 4 | 4 | 2 | 1 |
Grade 4 | 8 | 8 | 2 | 4 |
Goutallier classification in SSP | ||||
Grade 0 | 0 | 0 | 1 | 0 |
Grade 1 | 15 | 14 | 15 | 14 |
Grade 2 | 31 | 28 | 21 | 20 |
Grade 3 | 9 | 12 | 1 | 3 |
Grade 4 | 12 | 13 | 3 | 4 |
Goutallier classification in ISP | ||||
Grade 0 | 7 | 5 | 10 | 10 |
Grade 1 | 33 | 30 | 24 | 20 |
Grade 2 | 9 | 9 | 3 | 6 |
Grade 3 | 4 | 6 | 0 | 0 |
Grade 4 | 14 | 17 | 4 | 5 |
Predictive factor for persistent pain in initial MRI
Predictive factor for persistent pain | OR | 95% CI | P value |
---|---|---|---|
1. Bursal fluid accumulation | 1.47 | 0.79–2.72 | 0.224 |
2. SSP tendon tear retraction | 1.04 | 1.01–1.08 | 0.010* |
3. SSC tendon tears | 2.34 | 1.36–4.02 | 0.002* |
4. ISP tendon tears | 2.62 | 1.05–6.53 | 0.040* |
5. Goutallier classification in SSC | 1.50 | 1.05–2.15 | 0.026* |
6. Goutallier classification in SSP | 1.83 | 1.15–2.90 | 0.011* |
7. Goutallier classification in ISP | 1.58 | 1.10–2.27 | 0.013* |
Predictive factor for persistent pain | OR | 95% CI | P value |
---|---|---|---|
2. SSP tendon tear retraction | 1.00 | 0.96–1.05 | 0.87 |
3. SSC tendon tears | 4.28 | 1.14–16.0 | 0.03* |
4. ISP tendon tears | 1.37 | 0.31–6.09 | 0.68 |
5. Goutallier classification in SSC | 0.54 | 0.24–1.23 | 0.14 |
6. Goutallier classification in SSP | 1.33 | 0.64–2.75 | 0.45 |
7. Goutallier classification in ISP | 1.05 | 0.56–1.99 | 0.87 |
Factor associated with persisting pain after nonsurgical treatment in repeat MRI
Factor associated with persisting pain | OR | 95% CI | P value |
---|---|---|---|
1. Bursal fluid accumulation | 3.17 | 1.69–5.94 | 0.0003* |
2. SSP tendon tear retraction | 1.04 | 1.01–1.07 | 0.013* |
3. SSC tendon tears | 2.81 | 1.60–4.92 | 0.0003* |
4. ISP tendon tears | 2.81 | 1.21–6.51 | 0.016* |
5. Goutallier classification in SSC | 1.39 | 1.00–1.94 | 0.053 |
6. Goutallier classification in SSP | 1.75 | 1.13–2.69 | 0.012* |
7. Goutallier classification in ISP | 1.57 | 1.12–2.20 | 0.0082* |
Factor associated with persisting pain | OR | 95% CI | P value |
---|---|---|---|
1. Bursal fluid accumulation | 2.80 | 1.40–5.61 | 0.04* |
2. SSP tendon tear retraction | 0.99 | 0.94–1.04 | 0.75 |
3. SSC tendon tears | 2.37 | 1.21–4.64 | 0.01* |
4. ISP tendon tears | 1.78 | 0.44–7.18 | 0.42 |
6. Goutallier classification in SSP | 0.83 | 0.37–1.82 | 0.64 |
7. Goutallier classification in ISP | 1.13 | 0.64–2.00 | 0.69 |