Eustace S, Williamson D, Wilson M, O'Byrne J, Bussolari L, Thomas M, Stephens M, Stack J, Weissman B
Department of Radiology, Boston University Medical Center Hospital, MA 02118, USA.
Skeletal Radiol. 1996 Aug;25(6):519-24. doi: 10.1007/s002560050128.
This study was undertaken to demonstrate a shift in tendon alignment at the first metatarsophalangeal joint in patients with hallux valgus by means of magnetic resonance imaging.
Ten normal feet and 20 feet with the hallux valgus deformity conforming to conventional clinical and radiographic criteria were prospectively studied using magnetic resonance imaging. Correlation was made between tendon position at the first metatarsophalangeal joint and the severity of the hallux valgus deformity.
There is a significant shift in tendon position at the first metatarsophalangeal joint of patients with hallux valgus. The insertion of the abductor hallucis tendon is markedly plantarward and the flexor and extensor tendons bowstring at the first metatarsophalangeal joint compared with patients without the deformity. The severity of the tendon shift correlates with the hallux valgus angle and clinical severity of the hallux valgus deformity in each case.
Patients with hallux valgus have a significant tendon shift at the first metatarsophalangeal joint which appears to contribute to development of the deformity.
本研究旨在通过磁共振成像证明拇外翻患者第一跖趾关节处肌腱排列的改变。
对10只正常足和20只符合传统临床及影像学标准的拇外翻畸形足进行前瞻性磁共振成像研究。对第一跖趾关节处的肌腱位置与拇外翻畸形的严重程度进行相关性分析。
拇外翻患者第一跖趾关节处的肌腱位置有明显改变。与无畸形患者相比，拇展肌肌腱的止点明显向足底移位，且第一跖趾关节处的屈肌腱和伸肌腱呈弓弦状。在每种情况下，肌腱移位的严重程度与拇外翻角度及拇外翻畸形的临床严重程度相关。
拇外翻患者第一跖趾关节处存在明显的肌腱移位，这似乎促成了畸形的发展。
