Simpson R L, Flaherty M E
State University of New York, Stony Brook.
Clin Plast Surg. 1992 Jul;19(3):673-82.
Postburn deformities are common in the small finger. A boutonniere-like deformity may develop when no injury has been noted in the central slip of the extensor tendon. Attention to the anatomic differences of the fifth digit and principles of graft contraction make this deformity preventable. In the long-standing burn hyperextension deformity of the metacarpophalangeal joint, recurrence of the deformity may occur after reconstruction. Evaluation of extrinsic extensor tightness may indicate an alteration in the soft tissue-to-skeleton relationship. Composite tissue expansion of the tendon and overlying skin graft provides an alternative reconstruction method.
烧伤后畸形在小指中很常见。当伸肌腱中央束未发现损伤时，可能会出现纽扣花样畸形。关注第五指的解剖差异和移植皮片收缩的原则可预防这种畸形。在掌指关节长期烧伤后过度伸展畸形中，重建后畸形可能复发。评估外在伸肌紧张度可能提示软组织与骨骼关系的改变。肌腱和覆盖其上的移植皮片的复合组织扩张提供了一种替代的重建方法。
