From: The change of first metatarsal head articular surface position after Lapidus arthrodesis
Angle | Preoperatively | Postoperatively | ||
---|---|---|---|---|
without Akin | with Akin | without Akin | with Akin | |
HVA | 45.6° ± 20.5° (range 25.0° to 77.0°) | 42.7° ± 20.7° (range 28.0° to 56.0°) | 26.2° ± 15.1° (range 2.1° to 36.0°) | 17.3° ± 11.9° (range 6.6° to 26.6°) |
TASA | 3.7° ± 8.5° (range − 17.0° to 23.4°) | 4.7° ± 8.0° (range − 6.0° to 23.5°) | 9.7° ± 6.5° (range − 5.6° to 27.8°) | 10.9° ± 8.5° (range − 2.5° to 30.1°) |
DASA | 1.5° ± 4.1° (range − 9.0° to 20.0°) | 1.1° ± 3.8° (range − 5.8° to 7.5°) | 4.6° ± 4.1° (range − 8.3° to 15.0°) | -4.3° ± 4.8° (range − 13.5° to 5.9°) |