Skip to main content

Table 2 Radiographic evaluation in the modified group and the conventional group

From: A novel extramedullary technique to guide femoral bone preparation in mobile unicompartmental knee arthroplasty based on tibial cut and overall alignment

 Group A—modified group(mean ± SD(range))Group B—conventional group(mean ± SD(range))T valuep value
Preoperative HKAA (degrees)173.27 ± 3.51(166.0~179.5)173.55 ± 4.14(165.7~179.8)− 0.3620.718
Preoperative LDFA (degrees)82.13 ± 2.57(77.1~88.5)82.35 ± 2.71(75.3~88.9)− 0.4090.684
Preoperative MPTA (degrees)85.35 ± 3.21(76.7~90.8)85.79 ± 3.28(79.4~92.5)− 0.6700.505
Preoperative tibial posterior slope (degrees)7.91 ± 3.56(0.2~15.8)8.26 ± 3.61(− 0.1~16.3)− 0.4880.626
Postoperative HKAA (degrees)177.54 ± 3.35(170.2~183.7)177.05 ± 3.09(170.5~186.3)0.7580.450
Postoperative femoral angle A (degrees)1.80 ± 3.46(− 4.9~13.0)2.35 ± 2.35(− 2.9~11.1)− 0.9210.360
Postoperative femoral angle B (degrees)5.31 ± 4.16(0.0~17.3)4.66 ± 3.23(0.7~18.9)0.8700.387
Postoperative tibial angle E (degrees)0.83 ± 2.09(− 3.5~8.9)1.07 ± 1.75(− 2.4~4.8)− 0.6270.532
Postoperative tibial angle F (degrees)6.87 ± 2.20(1.1~11.7)6.36 ± 2.05(2.8~11.2)1.2030.232
  1. Abbreviations: HKAA hip-knee-ankle angle, LDFA lateral distal femoral angle, MPTA medial proximal tibia angle