Table 5.
Difference in performance test findings and self-reported knee pain and function among those with positive and negative special examination results
| WOMAC paina | WOMAC functiona | 20 m walkb | 6 min walkc | Berg Balanced | Timed chair stande | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Special Tests | Mean diff (95 % CI) | t-stat | Mean diff (95 % CI) | t-stat | Mean diff (95 % CI) | t-stat | Mean diff (95 % CI) | t-stat | Mean diff (95 % CI) | t-stat | Mean diff (95 % CI) | t-stat |
| Ely’s + = 79 - = 8 |
−52 (−135, 31) | −1.3 | −247 (−535, 42) | −1.7 | 0 (−3, 2) | −0.3 | 41 (−24, 106) | 1.2 | −1 (−4, 2) | −0.7 | + Ely’s =29 –Ely’s =41.6 median | N/A |
| Lachman’s + = 9 - = 77 |
−26 −106, 53 | −0.7 | 31 (−248, 311) | 0.2 | 0 (−4,1) | −1.0 | 26 (−36, 88) | 0.8 | 0 (−2, 3) | 0.3 | −5 (−12, 3) | −1.3 |
| McMurray's + = 29 - = 57 |
32 (−21, 84) | 1.2 | 158 (−24, 340) | 1.7 | −1 (−2, 1) | −0.6 | −6 (−45, 33) | −0.3 | −1 (−2, 1) | −0.6 | −1 (−7, 4) | −0.5 |
| Waldron + = 65 - = 22 |
−28 (−84, 29) | −1.0 | −43 (−242, 155) | −0.4 | −1 (−3, 1) | −1.3 | 23 (−19, 65) | 1.1 | 0 (−2, 2) | 0.3 | −1 (−7, 5) | −0.3 |
| Apley's (compression) + = 15 - = 70 |
29 (−36, 93) | 0.9 | 113 (−111, 337) | 1.0 | −1 (−3, 1) | −1.2 | 36 (−9, 81) | 1.6 | 1 (−2, 3) | 0.7 | −8 (−14, −1) | −2.3 |
| Apley's (distraction) + =5 - = 80 |
103 (1, 205) | 2.0 | 498 (150, 844) | 2.9 | 3 (−1, 6) | 1.6 | −58 (−131, 14) | −1.6 | −1 (−4, 3) | −0.3 | 8 (−4, 19) | 1.3 |
| Grind + = 49 - = 38 |
15 (−34, 65) | 0.6 | 78 (−95, 250) | 0.9 | −1 (−2, 1) | −1.1 | 16 (−21, 52) | 0.9 | 2 (0, 3) | 1.7 | −2 (−7, 3) | −0.8 |
| Ober + = 29 - = 56 |
−49 (−98, 1) | −2.0 | −163 (−340, 14) | −1.8 | 1 (−1, 2) | 0.7 | −22 (−61, 18) | −1.1 | −1 (−3, 1) | −1.2 | 0 (−6, 5) | −0.1 |
+ number of positive test, − Number of negative test. CI confidence interval. Significant association (P < 0.05) in bold
aWOMAC = Western Ontario and McMaster Index
b20 m walk test is the total time it takes to walk 20 m
cThe 6-min walk test measures the distance covered during the 6-min walk
dThe Berg Balance Scale assessed balance during performance of 14 functional tasks
eThe test measures the time taken to complete 10 full stands from a sitting position as fast as possible. Median values used to test Ely’s versus Timed Chair Stand