Table 1 Changes of alfa and beta angle after osteotomy of calcaneus
From: Calcaneal osteotomy due to insertional calcaneal tendinopathy: preoperative planning
Vertical type | Oblique type | Horizontal type | ||||
|---|---|---|---|---|---|---|
10° | 15° | 10° | 15° | 10° | 15° | |
Alfa | 0.4° ± 0.6° | 0.6° ± 0.7° | 3.0° ± 0.8° | 2.8° ± 1.1° | 7.2° ± 1.1° | 7.0° ± 1.2° |
(1.7° to − 0.2°) | (2.6° to − 0.1°) | (4.7° to 1.9°) | (5.6° to 1.6°) | (8.6° to 5.7°) | (8.8° to 5.6°) | |
Beta | 9.6° ± 0.9° | 14.4° ± 0.7° | 9.5° ± 0.4° | 14.5° ± 1.3° | 8.6° ± 0.5° | 13.0° ± 0.8° |
(10.8° to 7.2°) | (15.3° to 13.0°) | (10.2° to 9.0°) | (17.6° to 13.1°) | (9.4° to 8.0°) | (13.7° to 11.2°) | |