Free medial femoral condyle osteocutaneous flap for repairing stage IIIB osteonecrosis of the lunate: a case report.

Background: There are several surgical options for osteonecrosis of the lunate, and confirming the effectiveness of various surgical methods remains challenging. Here, we present a case of stage IIIB osteonecrosis of the lunate repaired with a free medial femoral condyle osteocutaneous flap.

Case Presentation: A 43-year-old male construction worker was admitted to our hospital due to right wrist pain, impaired mobility, and pain aggravated by activity for 10 months.

Long-term follow-up of three different nerve repair strategies (repair, autografting and allografting) in one-stage replantation to treat upper extremity amputation.

Objective: To examine the efficacy of three different nerve repair methods for one-stage replantation to treat complete upper extremity amputation and long-term postoperative functional recovery.

Methods: Twenty-five patients underwent direct nerve anastomosis (Group A), for patients with nerve defects greater than 3 cm, nerve autograft transplantation be used (Group B), or patients with nerve defects less than 3 cm, nerve allograft transplantation be used (Group C) based on the severity of injury. The Disabilities of the Arm, Shoulder, and Hand (DASH) score (higher score means poorer function-less than 25 means good effect) and visual analogue scale (VAS) scores for pain at rest and under exertion were measured.