Table 3 Comparison of correction rate and failure rate in acetabular cup placement during second THA according to type of surgery
Parameter | Simultaneous BTHA (N = 63) | Staged BTHA (N = 60) | P value |
|---|---|---|---|
Correction rate for inclination (n; %) | |||
Lewinnek (30° to 50°) | 7/7 (100) | 7/9 (78) | 0.475‡ |
Callanan (30° to 45°) | 16/21 (76) | 9/15 (60) | 0.465‡ |
Failure rate for inclination (n; %) | |||
Lewinnek (30° to 50°) | 3/56 (5) | 7/51 (14) | 0.188‡ |
Callanan (30° to 45°) | 7/42 (17) | 15/45 (33) | 0.074† |
Correction rate for anteversion (n; %) | |||
Lewinnek, or Callanan (5° to 25°) | 11/13 (85) | 10/13 (77) | 1.000‡ |
Failure rate for anteversion (n; %) | |||
Lewinnek, or Callanan (5° to 25°) | 1/50 (2) | 11/47 (23) | 0.001† |