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Scapholunate ligament reconstruction using a bone-retinaculum-bone autograft
1Department of Orthopaedic Surgery, Brown University School of Medicine, Rhode Island Hospital, Providence, USA.
The Journal of Hand Surgery
|April 29, 1998
Summary
Bone-retinaculum-bone grafts effectively reconstruct torn scapholunate ligaments in dynamic instability cases. However, this method shows questionable results for static scapholunate instability, potentially requiring stronger surgical constructs.
Area of Science:
- Orthopedic Surgery
- Hand Surgery
- Musculoskeletal Research
Background:
- Scapholunate (SL) ligament tears can lead to wrist instability.
- Reconstruction of the SL ligament is crucial for restoring wrist function.
- Autogenous bone-grafting techniques are explored for SL ligament repair.
Purpose of the Study:
- To evaluate the efficacy of a bone-retinaculum-bone graft for scapholunate ligament reconstruction.
- To compare outcomes in patients with dynamic versus static SL instability.
Main Methods:
- Nineteen patients with complete SL ligament tears underwent reconstruction using an autogenous bone-retinaculum-bone graft.
- Grafts were harvested from the third dorsal compartment and secured to the scaphoid and lunate.
- Patients were immobilized for 8 weeks, with follow-up averaging 3.6 years.
Main Results:
- In dynamic instability (14 patients), 12 reported no pain, and grip strength improved by 46%.
- In static instability (5 patients), outcomes were mixed, with 2 patients experiencing constant pain and dissatisfaction.
- Range of motion showed slight decreases in both groups, with moderate decreases in extension/flexion for the static group.
Conclusions:
- Bone-retinaculum-bone autograft reconstruction is a predictable method for dynamic SL instability.
- The technique's efficacy for static SL instability is questionable, suggesting a need for more robust surgical constructs.
- Further research may be needed to optimize treatments for static scapholunate instability.