Trumble T E, Watson H K
J Hand Surg Am. 1985 Jan;10(1):94-100. doi: 10.1016/s0363-5023(85)80257-4.
The articular interface between the radial sesamoid and the radial condyle of the metacarpal head, which is the radial subsesamoid joint, is the most frequently involved area of abnormality in the metacarpophalangeal joint complex. More than 85% of all adult cadavers demonstrate degenerative arthritis of the radial subsesamoid joint. Confusing this condition with degenerative arthritis of the metacarpophalangeal joint may lead to unnecessary joint fusions. The predisposition of the radial subsesamoid to degenerative arthritis is related to the asymmetry of the palmar condyles of the metacarpal. The ulnar sesamoid has a flatter and broader condyle compared with the radial sesamoid, which rides on a high, narrow ridge. Thirty-six patients with symptomatic sesamoiditis have been treated by sesamoidectomy since 1978. Twenty-one of these patients were available for follow-up examination between 1 and 5 years after surgery, and 19 had relief of proximal thumb pain after sesamoidectomy.
桡侧籽骨与掌骨头桡侧髁之间的关节面，即桡侧籽骨下关节，是掌指关节复合体中最常出现异常的部位。超过85%的成年尸体显示有桡侧籽骨下关节的退行性关节炎。将这种情况与掌指关节的退行性关节炎相混淆可能会导致不必要的关节融合。桡侧籽骨易患退行性关节炎与掌骨掌侧髁的不对称有关。与桡侧籽骨相比，尺侧籽骨的髁更扁平、更宽阔，而桡侧籽骨位于一个高而窄的嵴上。自1978年以来，36例有症状的籽骨炎患者接受了籽骨切除术治疗。其中21例患者在术后1至5年接受了随访检查，19例患者在籽骨切除术后近端拇指疼痛得到缓解。
