Palmar bowing of the TCL and cross sectional area of the flexor tendons, synovial space, and carpal tunnel
| Level 2: pisiform | Level 3: hook of the hamate | |||
|---|---|---|---|---|
| All values are expressed as means (SD). *p<0.05 versus control, **p<0.05 versus severe. The p value is not shown if <0.001. †Carpal tunnel area in the absence of palmar bowing of the TCL. TCL, transverse carpal ligament. | ||||
| Flexor tendon area (mm2) | ||||
| Control (n = 36) | 69.1 (7.7) | 72.0 (8.6) | ||
| Mild to moderate (n = 33) | 76.4 (8.3)* | 78.7 (8.2) p = 0.0016* | ||
| Severe (n = 50) | 75.7 (9.6) p = 0.001* | 77.1 (9.3) p = 0.0126* | ||
| Extreme (n = 22) | 74.6 (8.9) p = 0.0157* | 77.0 (10.6) | ||
| Synovial and intersynovial space (mm2) | ||||
| Control | 86.5 (13.3) | 65.6 (8.0) | ||
| Mild to moderate | 92.5 (14.4) | 67.3 (12.2) | ||
| Severe | 90.0 (15.0) | 65.1 (10.7) | ||
| Extreme | 84.8 (16.2) | 63.0 (9.9) | ||
| Carpal tunnel area (mm2) | ||||
| Control | 164.6 (16.6) | 146.3 (13.1) 136.4 (13.1)† | ||
| Mild to moderate | 183.5 (16.8)* | 156.8 (15.6) p = 0.0035* 136.4 (17.5)† | ||
| Severe | 180.3 (19.3)* | 153.4 (15.4) p = 0.0287* 132.2 (13.0)† | ||
| Extreme | 174.2 (22.1) | 150.0 (16.3) 131.1 (15.9)† | ||
| Palmar bowing (mm) | ||||
| Control | 1.29 (0.78) | |||
| Mild to moderate | 2.58 (0.82)* | |||
| Severe | 2.78 (0.85)* | |||
| Extreme | 2.26 (0.84)* p = 0.0182** | |||