Table 4:
Results for the Outcome of Pain for Knee Arthroscopy for End of Follow-up Periods
| Author, Year | Pain Measure | N (Intervention/Control) | Follow-Up | Intervention Group | Control Group | Between-Study Group Differences |
|---|---|---|---|---|---|---|
| Studies with placebo surgery controls | ||||||
| Moseley et al, 2002 (8) | Knee-Specific Pain Scale Score | 53/55 | 2 years | Mean 51.4 ± SD 23.2 | Mean 51.6 ± SD 23.7 | Mean 0.2 (95% CI −8.8 to 9.2); P = 0.96 |
| AIMS2: pain subscale | 53/55 | 2 years | Mean 54.0 ± SD 23.3 | Mean 52.5 ± SD 25.1 | Mean −1.5 (95% CI −10.8 to 7.7); P = 0.75 | |
| SF-36: pain subscale | 52/55 | 2 years | Mean 45.0 ± SD 23.0 | Mean 42.3 ± SD 24.2 | Mean −2.7 (95% CI −11.8 to 6.4); P = 0.56 | |
| Sihvonen et al, 2013 (13, 16) | 11-point VAS: after exercise | 70/76 | 12 months | Mean absolute change from baseline 3.1 (95% CI 2.5–3.8) | Mean absolute change from baseline 3.3 (95% CI 2.8–3.8) | Mean −0.1 (95% CI −0.9 to 0.7) |
| 11-point VAS: at rest | 70/76 | 12 months | Mean absolute change from baseline 2.5 (95% CI 1.8–3.2) | Mean absolute change from baseline 2.5 (95% CI 1.8–3.1) | Mean 0.0 (95% CI −0.9 to 1.0) | |
| Studies with usual care controls | ||||||
| Herrlin et al, 2013 (9) 2007 (15) | 10-point VAS: movement | 45/47 | 60 months | Mean 0 (IQR 0–3) | Mean 0 (IQR 0–2) | P > 0.05 |
| 10-point VAS: rest | 45/47 | 60 months | Mean 0 (IQR 0–1) | Mean 0 (IQR 0–0) | P > 0.05 | |
| KOOS pain subscale | 45/47 | 60 months | NR | NR | P > 0.05 | |
| Katz et al, 2013 (10) | KOOS pain score | 161/169 | 12 months | Mean absolute change from baseline 26.8 (95% CI 23.7–30.0) | Mean absolute change from baseline 27.3 (95% CI 24.1–30.4) | Mean −0.4 (95% CI −4.8 to 4.0) |
| Kirkley et al, 2008 (11) | WOMAC: pain subscale | 88/80 | 24 months | Mean 168 ± SD 134 | Mean 185 ± SD 132 | P = 0.14 |
| ASES: pain subscale | 88/80 | 24 months | Mean 68.8 ± SD 18.5 | Mean 63.8 ± SD 18.5 | P = 0.23 | |
| Østerås et al, 2012 (12) | 10-cm VAS | 8/9 | 3 months | Mean change from baseline–1.5 ± SD 0.8 | Mean change from baseline −1.1 ± SD 0.6 | Adjusted for baseline values Mean −0.5 (95% CI −1.2 to 0.2) |
| Yim et al, 2013 (14) | 10-point VAS | 50/52 | 2 years | Mean 1.8 (range 1–5) | Mean 1.7 (range 1–4) | P = 0.675 |
Abbreviation: AIMS2, Arthritis Impact Measurement Scale; ASES, Arthritis Self-Efficacy Scale; CI, confidence interval; IQR, interquartile range; KOOS, Knee Injury and Osteoarthritis Outcome Score; NR, not reported; SD, standard deviation; SF-36, Short Form 36 health survey; VAS, visual analogue scale; WOMAC, Western Ontario and McMaster Universities Osteoarthritis Index.
a
Measurement tools are briefly described in Table 3.