Table 3 Analysis of observation indexes (except for patients with > 50% articular surface involvement)
Variable | SR group ( n =24) | TC group ( n =41) | P -value |
|---|---|---|---|
VAS* score | |||
pre-operation | 3.8±1.1 | 3.3±1.0 | 0.100 |
post-operation | 1.7±0.8 | 1.6±0.9 | 0.722 |
MSTS* score | |||
three months post-operation | 18.8±1.3 | 19.8±1.5 | 0.010 ( P <0.05) |
two years post-operation | 24.3±1.4 | 26.2±1.2 | 0.000 ( P <0.05) |
recurrence, n (%) | 2 (8.3%) | 3(7.3%) | 0.882 |
Recurrence, n (before 2017) | 1(15) | 2(20) | 0.727 (P’=0.703) |
Recurrence rate (before 2017) | 6.7% | 10.0% | |
Recurrence,n (after 2017) | 1(9) | 1(21) | 0.523 (P’’=0.520) |
Recurrence rate (after 2017) | 11.1% | 4.8% | |
Reoperation, n (%) | 4 | 3 | 0.241 |
Complications, n (%) | |||
prosthesis loosening | 2 | 0 | 0.060 |
infection | 0 | 1 | 1.000 |
Postoperative satisfaction | 24 | 40 | 0.040 ( P <0.05) |