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Unilateral lumbar fusion
M F Hambly1, L L Wiltse, R D Peek
1Wiltse Spine Institute, Long Beach, California.
Spine
|June 1, 1991
Summary
Unilateral lumbar spine fusion can be necessary for specific conditions like "far-out syndrome." This study found an 85% fusion rate in 13 patients, indicating its potential effectiveness.
Area of Science:
- Orthopedic Surgery
- Spinal Fusion Techniques
- Spine Decompression
Background:
- Unilateral lumbar spine fusion is infrequently indicated.
- Destabilization from unilateral posterior element resection can lead to joint instability.
- Specific conditions necessitate unilateral fusion approaches.
Purpose of the Study:
- To evaluate the efficacy and outcomes of unilateral lumbar spine fusion.
- To assess fusion rates and complications in patients undergoing this procedure.
Main Methods:
- Retrospective review of 13 patients (7 male, 6 female; average age 60) who underwent unilateral lumbar fusion.
- Analysis of patient charts and radiographs with follow-up ranging from 12.5 months to 2 years (median 8 years).
- Procedures included unilateral posterior element resection, decompression for far-out syndrome, or osteoid osteoma removal; autologous bone graft used in all cases.
Main Results:
- An 85% fusion rate (11/13 patients) was achieved.
- Two of three smokers developed pseudarthrosis (failed fusion).
- No progression of spondylolisthesis was observed; one moderate postoperative infection occurred.
Conclusions:
- Unilateral lumbar spine fusion demonstrates a high fusion rate and can be a viable option for specific indications.
- Patient factors like smoking may influence fusion success.
- The procedure appears safe with a low complication rate.