Table 5 Recent studies reported the change of the joint-line convergence angle (JLCA) after high tibial osteotomy
Author (year) | N (M/F) | Age (years) | BMI (kg/m2) | F/U | Mechanical femorotibial angle (mFTA) | Joint-line convergence angle | ||||
|---|---|---|---|---|---|---|---|---|---|---|
Preoperative | Postoperative | ΔmFTA | Preoperative | Postoperative | ΔJLCA | |||||
Oh (2016) [17] | 69 (13/56) | 54.4 ± 7.2 | 27.0 ± 3.2 | 6 W to 3 M | − 6.0° ± 4.0° (− 22.2 to − 0.3°) | 3.3° ± 3.3° (4.9–10.6°) | 9.4° ± 4.7° (1.4–24.5°) | 1.8° ± 1.8° (− 3.1–9.8°) | 0.5° ± 1.7° (− 5.3–5.9°) | − 1.2° ± 1.6° (− 7.0–2.0°) |
Lee (2016) [16] | 86 (20/66) | 57 (41–72) | 25.7 | 6 M | − 8.0° ± 3.9° (− 1 to − 17°) | 3.4° ± 2.3° (− 2 to − 7°) | 9.78° | 3.4° ± 2.3° (− 1.5–10.4°) | 2.1° ± 2.3° (7–2°) | − 1.3° (− 2.1–8.4°) |
Shin (2016) [18] | 50 (21/29); 47 (27/20) | 63.9 ± 4.8; 63.5 ± 7.7 | 26.2 ± 3.2; 26.0 ± 2.6 | Last F/U (≥ 6 W) | − 7.5° ± 3.1°; − 7.4° ± 4.2° | 2.8° ± 1.8°; 2.5° ± 2.2° | 10.3° ± 3.5°;9.9° ± 5.3° | 3.6° ± 2.4°; 3.6° ± 1.6° | 1.8° ± 2.0°; 1.9° ± 1.8° | − 1.8° ± 1.6°; − 1.7° ± 1.3° |
Ogawa (2016) [13] | 50 (22/28) | 62.3 ± 7.4 | N/A | 6 M | − 9.6° ± 4.0° | 3.2° ± 2.3° | 12.8° ± 4.3° | 4.6° ± 2.2° | 2.7° ± 1.6° | − 2.0° ± 1.5° |
Park (2017) [27] | 100 (5/89) | 58.7 ± 7.4 (41–72) | 25.0 ± 2.7 | 3/6/12/24 M/last F/U | − 8.1° ± 2.9° | 1.6° ± 1.9° | 9.7° ± 3.0° | 4.4° | 3.9°; 4.0°; 4.1°; 4.2°; 4.3° | − 0.2° to − 0.5° |
The current study | 80 (13/67) | 57.4 ± 7.4 | 26.3 ± 3.7 | ≥ 3 M | − 5.6° ± 3.4° | 3.3° ± 2.7° | 8.9° ± 3.5° | 2.7° ± 1.6° | 1.8° ± 1.1° | − 0.9° ± 1.2° |