A rare case of thumb polydactyly with metacarpophalangeal joint synostosis

Abstract

We report on a rare case of thumb polydactyly with metacarpophalangeal joint synostosis in a 14-year old otherwise healthy boy. Our case can only be classified in the Rotterdam classification, was treated with resection of the hypoplastic radial component and yielded a very satisfactory outcome with a stable thumb.

Genetic overview of postaxial polydactyly: Updated classification

“…If the procedure is more complicated, it may include the bones, ligaments, and tendons. In minor instances, suture ligature procedure can be used, where the base of extra digits is tied off to restrict blood flow leading to necrosis and removal of the digit 43–45 …”

“…In minor instances, suture ligature procedure can be used, where the base of extra digits is tied off to restrict blood flow leading to necrosis and removal of the digit. [43][44][45] PAPA can be treated in the clinic under local anesthesia by suture ligation or excision in the early postnatal period. However, there is an increased chance of painful neuroma development after suture liga- diagnosis is still primarily post-birth, as not all genetic bases are effectively charted.…”