Harverson G, Warren A G
Clin Radiol. 1979 May;30(3):317-22. doi: 10.1016/s0009-9260(79)80092-6.
Tarsal bone disintegration is characterised by fragmentation and progressive collapse of one or more tarsal bones. It occurs in 10% of leprosy patients, and is responsible for many severe foot deformities associated with this disease. The main cause is micro-traumata, but sensory impairment, sepsis and osteoporosis are predisposing factors. In this series of 400 consecutive patients the talus and navicular were involved most frequently (2% of 119 tarsal lesions). Treatment, including prolonged immobilisation of the foot, results in dense sclerosis of the affected bone, and leaves a functional limb. Initial radiological features include: (i) Bone fragmentation. (ii) Calcified fragments in adjacent soft tissues. (iii) Linear fractures. (iv) Progressive compression and deformity of the affected bone. (v) Loss of density of the affected bone. (vi) Flattening of the longitudinal plantar arch. Illustrative case histories are presented, and the differential diagnosis discussed.
跗骨崩解的特征是一块或多块跗骨发生碎裂和逐渐塌陷。它发生在10%的麻风病患者中，是与该疾病相关的许多严重足部畸形的原因。主要原因是微创伤，但感觉障碍、败血症和骨质疏松是诱发因素。在这组连续的400例患者中，距骨和舟状骨受累最为频繁（119例跗骨病变中的2%）。治疗包括长时间固定足部，可导致受累骨致密硬化，并留下功能正常的肢体。最初的放射学特征包括：（i）骨碎裂。（ii）相邻软组织中的钙化碎片。（iii）线性骨折。（iv）受累骨的渐进性压缩和畸形。（v）受累骨密度降低。（vi）足底纵弓变平。文中给出了典型病例，并讨论了鉴别诊断。
