Table 5.
Medical need predictors of surgical rates
| Predictor | Procedure | Reference | Categories | Effect size | 95% Confidence interval | p | Comment |
|---|---|---|---|---|---|---|---|
| Degenerative | TJA | 18 | Previous OA | HR, 6.03 | (4.29–9.26) | ||
| OA | TJA | 19 | History of OA | OR, 9.0 | (5.41–15.0) | ||
| TJA | 19 | Previous TJA | OR, 12.6 | (9.07–17.5) | |||
| TJA | 27 | OA | HR, 1.6 | (1.25–2.05) | 0.001 | ||
| TJA | 47 | OA | OR, 2.18 | (0.52–9.15) | 0.29 | ||
| THA | 37 | THA (OA)/THA(other) | Increase | 0.001 | |||
| TKA | 13 | Previous OA | OR, 0.93 | 0.35 | |||
| LSS | 7 | Back pain | IRR, 0.81 | (0.55–1.17) | 0.26 | ||
| Disability | TJA | 18 | OA-related limitation | HR, 2.36 | (2.02–2.79) | ||
| TJA | 19 | ADL limitations | OR, 3.32 | (2.26–4.86) | |||
| TJA | 19 | physical limitations | OR, 2.02 | (1.40–2.92) | |||
| TJA | 27 | SF-36 score 67+ to 25− | HR, 1.44 | (0.99–2.10) | 0.004 | ||
| TJA | 27 | WOMAC score 54 + to 27− | HR, 2.17 | (1.49–3.16) | 0.001 | ||
| TJA | 47 | Diff walking | OR, 1.37 | (0.91–2.07) | 0.13 | ||
| THA | 37 | Permanent disability | Decrease | 0.001 | |||
| TKA | 25 | Physical limitations | OR, 3.05 | (2.51–3.69) | Stooping or crouching |
TJA = total joint arthroplasty; LSS = lumbar spine surgery; OA = osteoarthritis; ADL = activities of daily living; HR = hazard ratio; OR = odds ratio; IRR = incidence rate ratio.