Table 1 Baseline patient characteristics. Severity of OA was scored according to the Kellgren- Lawrence classification. Preoperative angles were measured on full leg standing radiographs (2D) or in 3D software on non-weightbearing CT-scan (BMI, body mass index; OA, osteoarthritis; MPTA, medial proximal tibial angle mTFA, mechanical tibiofemoral angle; LDFA, lateral distal femoral angle; MPTS, medial posterior tibial slope)
Parameter | Analysed group (n = 30) |
|---|---|
Age (years), mean ± SD [range] | 48 ± 13 [18 to 70] |
Male, n (%) | 27 (90) |
Right, n (%) | 16 (53) |
BMI, mean ± SD [range] | 27.9 ± 5.1 [16.9–37.0] |
MPTA (°), mean ± SD [range] | 3D| 85.0° ± 3.0 [76.6–88.9] |
2D| 85.2° ± 2.5 [78.0–89.3] | |
mTFA (°), mean ± SD [range] | 3D| 175.0° ± 2.2 [169.3–177.9] |
2D| 174.2° ± 2.4 [167.5–177.2] | |
LDFA (°), mean ± SD [range] | 3D| 87.6° ± 1.4 [84.8–90.7] |
2D| 88.2° ± 1.6 [85.1–92.7] | |
MPTS (°), mean ± SD [range] | 3D| 94.1° ± 3.4 [87.9–102.3] |
Severity OA, n (%) | |
Grade 1 | 8 (27%) |
Grade 2 | 8 (27%) |
Grade 3 | 11 (36%) |
Grade 4 | 3 (10%) |