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The Journal of Bone and Joint Surgery (American) 85:20-32 (2003)
© 2003 The Journal of Bone and Joint Surgery, Inc.

Percutaneous Internal Fixation of Selected Scaphoid Nonunions with an Arthroscopically Assisted Dorsal Approach

Joseph F. Slade, III, MD, William B. Geissler, MD, Andrew P. Gutow, MD and Greg A. Merrell, MD

Corresponding author:
Joseph F. Slade III, MD
Hand and Upper Extremity Service, Department of Orthopaedics and
Rehabilitation, Yale University School of Medicine, 73 Faulkner Drive,
Guilford, CT 06437. E-mail address: joseph.slade{at}yale.edu

Background: Preliminary reports have indicated that selected scaphoid nonunions—i.e., those that are well aligned and without extensive sclerosis or bone resorption at the nonunion site—can be treated effectively with internal fixation alone. We examined the feasibility of percutaneous fixation in a series of such nonunions.

Methods: A consecutive series of fifteen patients with fibrous union or nonunion of a carpal scaphoid fracture with minimal sclerosis or resorption at the nonunion site were treated with rigid fixation alone (without bone graft) with a headless compression screw inserted with a dorsal percutaneous technique.

Results: Clinical examination, standard radiographs, and computed tomography scans confirmed union in all patients at an average of fourteen weeks. Nonunions treated less than six months after the injury healed faster than those treated later (p < 0.02). According to the Mayo modified wrist score, there were twelve excellent and three good results.

Conclusions: The results in our series were due to careful examination and grading of the scaphoid nonunions preoperatively. The findings in this small series support the observation in earlier reports that percutaneous repair of selected scaphoid nonunions requires only rigid fixation to achieve healing.



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