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Table 3 Radiographic data

From: Total knee arthroplasty in patients with Ranawat type-II valgus arthritic knee with a marked coronal femoral bowing deformity: comparison between computer-assisted surgery and intra-articular resection

Parameters CAS-TKA Bone-Resect-TKA P value
n = 22 n = 28
Radiographic data
 Preoperative MA (°) 193° (192°–198°) 194° (191°–196°) 0.954
 Postoperative MA (°) 180° (178°–181°) 178° (176°–184°) 0.012*
 Valgus correction angle of the distal femur (°) 10° (8°–12°) 10° (7°–12°) 0.739
 Coronal femoral bowing angle (°) 8° (7°–13°) 9° (8°–12°) 0.714
 Preoperative congruent angle (°) 12° (2°–38°) 12° (1°–39°) 0.887
 Postoperative patellar tilting angle (°) 2° (1°–4°) 3° (2°–5°) 0.855
 Joint line elevation (mm) 1 (−1–3) 3 (2–6) 0.011*
Component alignment
 Femoral valgus angle (°) 98° (97°–102°) 97° (95°–100°) 0.002*
 Femoral flexion angle (°) 1° (0°–7°) 3° (0°–7°) 0.006*
 Tibial valgus angle (°) 89° (88°–91°) 90° (89°–91°) 0.716
 Tibial flexion angle (°) 88° (84°–90°) 87° (83°–91°) 0.643
  1. Data are mean (range). P for between-group comparisons was determined using t tests
  2. CAS-TKA knees treated with computer-assisted surgery—total knee arthroplasty, Bone-Resect-TKA knees treated with intra-articular bone resection—total knee arthroplasty, MA mechanical axis
  3. *Statistically significant (P < 0.05)