Use of 4+5 extensor compartmental vascularized bone graft and K-wire fixation for treating stage II-IIIA Kienböck’s disease

Abstract Vascularized bone grafts have shown favorable outcomes in Kienbock’s disease, preventing the progression of lunate collapse and avascular necrosis. Here we describe our experience using a 4+5 extensor compartmental artery (ECA) vascularized bone graft combined with K-wire fixation. Between September 2010 and June 2013, 9 patients with Lichtman stage II-IIIA disease underwent arthroscopy prior to 4+5 ECA graft placement combined with temporary fixation (scaphocapitate and triquetrum-capitate joints). The average follow-up was 69 months (range, 51–92 months). Changes in pain, range of motion, grip strength, and pinch strength were analyzed. All patients had satisfactory recovery, especially pain relief and grip strength improvement (both p