Carpal tunnel syndrome associated with a fracture of a silicone implant for Kienböck's disease: two case reports.

In this report, two cases presenting with CTS including a fracture of the silicone implant for Kienböck's disease after replacement over 20 years postoperatively where CTR ceased the symptoms of CTS. The major symptom characteristic was the median nerve impairment with less emphasis on the limited range of motion of the wrist or wrist pain due to a fracture of the silicone implant. There was an unlikely association between the fracture of the implant and CTS, which was confirmed by the operative findings of tenosynovitis and thickness of the degenerated transverse ligament without a significant protrusion of the silicone implant.