Description
Management of scaphoid nonunion remains challenging despite modern fixation techniques. Nonvascularized bone graft may be used to achieve union in waist and proximal pole fractures with good success rates. Technical aspects, such as adequate debridement and restoration of scaphoid length, and stable fixation are critical in achieving union and functional wrist usage. Rigid fixation can be achieved with compression screws, K-wires, and plate constructs. The surgeon has a choice of various bone...
Summary
Scaphoid nonunion, a condition where a fractured wrist bone fails to heal properly, remains difficult to treat even with modern surgical techniques. This article examines the use of nonvascularized bone grafting, a traditional approach that does not require transplanting bone with its blood supply, as a treatment option for fractures at the waist and proximal pole of the scaphoid bone. The method relies on key technical steps including thorough removal of damaged tissue, restoring the proper length and alignment of the scaphoid, and securing the bone with stable fixation using screws, wires, or plates. Surgeons can choose from several types of bone graft materials—including corticocancellous, cancellous, and strut grafts—to encourage healing and correct a common deformity called humpback deformity, where the bone collapses into an abnormal angle. When performed with careful technique, nonvascularized bone grafting can achieve good union rates and help patients regain functional use of the wrist, making it a viable option for managing this challenging condition.