Studies reporting preoperative physical function as possible predictor of functional outcome after THA
| Measurement | FU period | Significance | |||||
|---|---|---|---|---|---|---|---|
| Author, year | Grade | N of pts | tool | (months) | Level (p value) | Association | Predictor level of measurement |
| Quintana, 2009 | Moderate | 788 | WOMAC PF | ST (6 m) | <0.001 | Yes | Cont (WOMAC+SF-36) |
| SF-36 PF | |||||||
| Slaven, 2012 | Low | 40 | TUG | ST (6 m) | NA | No | Dich |
| (successful/unsuccessful) | |||||||
| Mahomed, 2002 | Moderate | 103 | WOMAC PF+P | ST (6 m) | <0.05 | Yes | Cont (WOMAC+SF-36) |
| SF-36 PF | <0.05 | ||||||
| Hamilton, 2012 | Low | 1410 | OHS | ST (6 m) | Yes | Yes | Cont (OHS) |
| SF-12 | ST (12 m) | ||||||
| Nankaku, 2013 | Moderate | 204 | Ambulatory status ST (6 m) | NA | Yes | Dich (TUG score 10) | |
| Vogl, 2014 | Low | 281 | WOMAC | ST (6 m) | NA | Yes | Cont (WOMAC) |
| Bergschmidt, 2010 | Moderate | 100 | WOMAC | ST (12 m) | <0.022 | Yes | Cat (3) |
| SF-36 | 0.003 | 1: HHS<48 2: HHS 48–59 3: HHS>59 | |||||
| Clement, 2010 | High | 1312 | OHS | ST (12 m) | 0.001* | Yes | Cont (OHS) |
| SF-12 | |||||||
| Johansson, 2010 | Moderate | 75 | HHS | ST (12 m) | ?0.006 | Yes | Cat (3) |
| WOMAC | <0.001 | Yes | 1: HHS<45 2: HHS 45–55 3: HHS>55 | ||||
| SF-36 | ?0.005 | Yes | |||||
| Nilsdotter, 2002 | Moderate | 148 | WOMAC | ST (12 m) | <0.0001 | Yes | Dich |
| SF-36 | Low quartile vs high quartile WOMAC | ||||||
| Dowsey, 2014 | High | 835 | HHS | ST (12 m) | <0.0001 | Yes | Cont (HHS) |
| Wang, 2010 | Moderate | 97 | WOMAC | ST (16.8 m) | 0.0001 | Yes | Cont (WOMAC PF) |
| Moran, 2005 | Moderate | 749 | HHS | ST (18 m) | NA | Yes | Cont |
| Fortin, 2002 | Low | 222 | WOMAC | ST (24 m) | NA | Yes | Dig (1: high WOMAC 2: low WOMAC) |
| SF-36 | NA | Yes | |||||
| Smith, 2012 | Moderate | 1683 | HHS | LT (36 m) | <0.001 | Yes | Cont (HHS) |
| Nilsdotter, 2003 | Low | 211 | WOMAC PF | LT (42 m) | 0.007 | Yes | Dich |
| Low quartile vs high quartile SF-36 PF | |||||||
| Judge, 2013 | High | 1431 | OHS | LT (60 m) | <0.001 | Yes | Cont (OHS) |
All significant results are bold.
BMI, body mass index; Cat, categorical; Cont, continuous; Dich, dichotomous; FU, follow-up; HHS, Harris Hip Score; LT, long-term; N of pts, number of patients; NA, not applicable; Neg, negative; OHS, Oxford Hip Score; Pos, positive; SF-36 PF, Short Form 36 physical function; ST, short-term; THA, total hip arthroplasty; WOMAC, Western Ontario and Mcmaster Universities Osteoarthritis Index.