Table 4 Statistical comparison of clinical results between the two treatment groups
Measure | Osteoarticular allograft group (N = 15) | 3D-printed prosthesis group (N = 15) | p-value allograft vs prosthesis |
|---|---|---|---|
Postoperative | |||
 Extension (°) | 38.3 (range 25~65) | 61.7(range 20~85) | < 0.01 |
 Flexion (°) | 26.3 (range 10~50) | 45.0 (range 20~80) | 0.02 |
 Supination (°) | 55.0 (range 40~80) | 60.0(range 25~85) | 0.187 |
 Pronation (°) | 52.0 (range 30~65) | 54.7 (range 30~80) | 0.683 |
 Mayo score | 65.0 (range 55~75) | 71.0 (40~85) | 0.013 |
 MSTS score | 71.2 (range 57.1~82.9) | 81.7 (range 60~94.3) | 0.01 |
 VAS score | 1.2 (range 0~3) | 1.3 (range 0~4) | 0.806 |
 Grip strength (% of normal side) (%) | 54.7 (range 42.5~70.3) | 64.4 (range 31.9~100) | 0.03 |
The variations before and after surgery | |||
 Extension (°) | 8.7 (range − 20~30) | 29.7 (range 5~55) | < 0.01 |
 Flexion (°) | 1.3 (rang −20~20) | 12.0 (range 0~35) | 0.02 |
 Supination (°) | 22.0 (range 0~50) | 24.0 (range 0~50) | 0.624 |
 Pronation (°) | 18.0 (range − 5~40) | 20.7 (range 10~40) | 0.635 |
 Mayo score | 47.3 (rang 40~65) | 51.7 (range 25~60) | 0.03 |
 MSTS score | 17.1 (range 5.7~28.6) | 28.6 (range − 2.9~57.1) | < 0.01 |
 VAS score | 4.3 (range 2~6) | 4.2 (range 1~6) | 0.870 |
 Grip strength (% of normal side) (%) | 25.1 (range 10.0~47.4) | 31.2 (range 11.4~81.6) | 0.250 |