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

Table 3 Radiographic data

Parameters	CAS-TKA	Bone-Resect-TKA	P value
Parameters	n = 22	n = 28	P value
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

Data are mean (range). P for between-group comparisons was determined using t tests
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
*Statistically significant (P < 0.05)

ISSN: 1749-799X