Variable | PG (n=53) | CG (n=106) | |||||
---|---|---|---|---|---|---|---|
Preoperative | Postoperative | Variation | Preoperative | Postoperative | Variation | ||
Center-Edge (CE) angle (°) | Left | 36(33,38) | 36(33,37) | ||||
Right | 36(33,40) | 38(35,38) | |||||
Sharp angle (°) | Left | 36(35,37) | 36(35,38) | ||||
Right | 36(35,38) | 36(35,39) | |||||
Acetabular coverage (%) | Left | 84(81,86) | 84(78,85) | ||||
Right | 83(80,86) | 82(78,85) | |||||
Tönnis angle (°) | Left | 7(7,8) | 8(7,8) | ||||
Right | 7(7,8) | 8(7,8) | |||||
Femoral neck-shaft angle (°) | Left | 125(121,127) | 126(123,132) | ||||
Right | 126(122,128) | 126(123,130) | |||||
Inclination (°) | Left | 40(38,42) | 40(38,42) | -1(-1,0) | 41(39,43) | 42(38,43)* | 0(-1,2) |
Right | 40(39,42) | 40(38,42) | -1(-2,0) | 41(40,43) | 42(39,43)* | 1(-1,2) | |
Anteversion (°) | Left | 15(14,16) | 14(14,16) | -1(-1,1) | 15(14,16) | 15(14,16)* | 1(-1,1) |
Right | 15(14,16) | 15(14,15) | -1(-1,1) | 15(14,16) | 15(14,16)* | 0(-1,1) | |
Ante-Inclination (AI) (standing) (°) | Left | 34(31,35) | 33(30,36) | -1(-2,1) | 34(33,36) | 35(33,36)* | 0(-1,1)* |
Right | 33(32,36) | 33(30,35) | -1(-2,1) | 34(33,36) | 35(33,36)* | 0(-1,1)* | |
Ante-Inclination (AI) (sitting) (°) | Left | 50(48,54) | 51(48,54) | 0(-1,1) | 52(50,55) | 52(49,54) | 1(-1,1) |
Right | 52(50,54) | 50(48,54) | -1(-2,1) | 52(50,54) | 52(50,55) | 0(-1,1) | |
Pelvic tilt (PT) (standing) (°) | 13(9,17) | 10(5,15) | -2(-4,0) | 13(10,16) | 12(9,17) | 0(-3,3)* | |
Pelvic tilt (PT) (sitting) (°) | 31(26,36) | 29(26,34) | -1(-3,1) | 32(27,38) | 32(27,36) | 0(-2,2)* | |
(standing PT - sitting PT) (°) | -19(-22,-16) | -20(-23,-17) | -19(-21,-17) | -19(-23,-16) | |||
Pelvic incidence (PI) (°) | 51(47,57) | 51(47,58) | |||||
Sacral slope (SS) (standing) (°) | 39(36,42) | 41(38,44) | 2(0,4) | 39(36,41) | 39(36,41)* | 0(-3,3)* | |
Sacral slope (SS) (sitting) (°) | 20(18,22) | 22(17,24) | 1(-1,3) | 19(17,22) | 19(17,21)* | 0(-2,2)* | |
(standing SS - sitting SS) (°) | 19(16,22) | 20(17,23) | 19(17,21) | 19(16,23) | |||
Lumbar lordosis (LL) (°) | 59(51,66) | 60(53,67) | 2(-1,4) | 57(51,63) | 56(50,62) | -1(-2,2)* | |
Sagittal vertical axis (SVA) (mm) | 5(-14,25) | 6(-15,24) | 0(-1,1) | 8(-12,17) | 8(-13,18) | 0(-1,1) |