Table 1.
Baseline characteristics in the randomised controlled trial of patients eligible for total knee replacement (TKR)
| Baseline characteristics | TKR-+non-surgical group (n=50) |
Non-surgical group (n=50) |
| Women, n (%) | 32 (64) | 30 (60) |
| Age (years), mean (SD) | 65.8 (8.7) | 67.0 (8.7) |
| Body mass index, mean (SD) | 32.3 (6.2) | 32.0 (5.8) |
| Bilateral knee pain, n (%) | 18 (36) | 17 (34) |
| Radiographic knee OA severity (Kellgren-Lawrence), n (%) | ||
| Grade 1 | 0 (0) | 0 (0) |
| Grade 2 | 7 (14) | 5 (10) |
| Grade 3 | 21 (42) | 21 (42) |
| Grade 4 | 22 (44) | 24 (48) |
| KOOS | ||
| Pain | 48.6 (17.5) | 49.5 (13.1) |
| Symptoms | 54.0 (15.0) | 58.3 (15.2) |
| ADL | 55.0 (17.0) | 53.5 (14.2) |
| Sport/rec | 18.0 (14.7) | 16.7 (15.1) |
| QOL | 32.3 (15.3) | 32.7 (13.3) |
| KOOS4 | 47.4 (13.4) | 48.5 (11.4) |
| Timed Up and Go test, seconds | 9.4 (2.4) | 8.6 (2.1) |
| 20-metre walk test, seconds | 13.4 (3.7) | 12.2 (2.6) |
| Used pain medication in the last week, yes n (%) | 33 (67) | 29 (58) |
Radiographic severity: Radiographic knee osteoarthritis severity on the Kellgren-Lawrence scale; KOOS4: The mean score of four out of five of the Knee injury and Osteoarthritis Outcome Score subscales covering Pain, Symptoms, Function in daily living (ADL), Sport/Rec: Function in sport and recreation. and Quality of life (QOL), with scores ranging from 0 to 100 (worst to best scale).
OA, osteoarthritis.