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  • Title: Reconstruction of proximal pole scaphoid non-union with avascular necrosis using proximal hamate: A four-case series.
    Author: Saruhan S, Savran A, Yıldız M, Şener M.
    Journal: Hand Surg Rehabil; 2021 Dec; 40(6):744-748. PubMed ID: 34274497.
    Abstract:
    Union of proximal pole scaphoid fracture is challenging because the vascular supply is limited. The avascular necrosis accompanying non-union and progressive fragmentation make surgical reconstruction difficult. The present study aimed to report short-term results of reconstruction with proximal hamate in proximal pole scaphoid non-union with avascular necrosis. Four patients (3 male, 1 female) were assessed for non-union following proximal pole scaphoid fracture. Mean age was 25.7 years (range, 22-35 years). Mean interval between injury and reconstruction was 7.5 years (range, 5-9 years). In 3 patients, no treatment was given following the fracture and in the other internal fixation was performed following cast immobilization. The non-united avascular proximal scaphoid was resected and reconstructed with proximal hamate autograft. Mean follow-up was 14.0 months (range, 9-22 months) after reconstruction. At the last control, cases were evaluated in terms of clinical and functional status, and radiologic union was determined on CT scan. Three patients reported subjective decrease in pain. Mean grip strength proportionally to the unaffected side was 24% (range, 8-51%), mean flexion-extension was 55.3% (range, 21-60%), and radial-ulnar deviation was 63.6% (range, 25-100%). Mean QuickDASH score was 32.3 (range, 13.6-52.2). Union was observed in all patients. Proximal hamate reconstruction provided union and pain relief, but only moderate objective functional results. It can be used as an alternative technique in proximal pole scaphoid non-union with avascular necrosis.
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