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Periprosthetic patellar fracture fixation using suture anchors
Orthopedics
|November 9, 2013
Summary
This study presents a novel surgical technique for treating displaced type II periprosthetic patellar fractures after total knee arthroplasty. The suture anchor cerclage method achieved excellent fracture union and functional recovery, avoiding complications.
Area of Science:
- Orthopedic Surgery
- Biomedical Engineering
Background:
- Periprosthetic patellar fractures, especially type II with >10mm displacement, pose treatment challenges.
- Internal fixation often yields poor outcomes, while conservative management risks extensor lag.
Observation:
- A 72-year-old male presented with a displaced type II patellar fracture 1 month post-total knee arthroplasty.
- Physical exam revealed extensor lag; radiographs showed a 15mm separated, comminuted distal patellar fracture.
Findings:
- A novel technique using suture anchors and cerclage was employed, preserving the intact patellar component.
- The procedure achieved anatomical reduction and fracture union.
- One-year follow-up showed good range of motion, no extensor lag, subluxation, avascular necrosis, or refracture.
Implications:
- This suture anchor technique offers a viable, effective solution for complex periprosthetic patellar fractures.
- It may improve functional outcomes and reduce complications compared to traditional methods.
