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Bipolar Osteochondral Allograft Transplantation of the Tibiotalar Joint for Ankle Arthritis
William D Bugbee1, Michael E Brage2
1Division of Orthopaedic Surgery, Scripps Clinic, 10666 North Torrey Pines Road, La Jolla, CA 92037.
Introduction:
Bipolar osteochondral allografting is a technically complex procedure envisioned as an alternative to arthrodesis or arthroplasty1 in carefully selected young patients with advanced tibiotalar arthritis, usually as a result of trauma.
Step 1 Preoperative Planning:
Confirm that the grafts are not damaged and that the side (left or right) and size (not too small) are properly matched to the donor.
Step 2 Placement Of The External Fixator:
Place an external fixator across the ankle joint using fluoroscopy and distract the ankle prior to incision.
Step 3 Anterior Approach To The Ankle:
Perform a standard anterior approach to the ankle joint.
Step 4 Positioning Of The Cutting Jig:
Mount the jig on the ankle and confirm the cutting block position both visually and fluoroscopically.
Step 5 Bone Resection:
Using a reciprocating saw and careful technique to protect the tendons and neurovascular structures, perform osseous resection of the distal part of the tibia and the talar dome.
Step 6 Preparation Of The Allograft:
Prepare the tibial and talar allografts from the donor tissue to match the resection gap created in Step 5.
Step 7 Insertion And Fixation Of The Allograft:
Insert and fix the allograft construct and remove the external fixator.
Step 8 Rehabilitation:
Postoperative care is straightforward, including initial immobilization and a three-month period of non-weight-bearing.
Results:
In our recent clinical study2, we used our clinical outcomes database to identify eighty-four consecutive patients (eighty-eight ankles) who underwent bipolar osteochondral allograft transplantation of the tibiotalar joint, had surgery in 1999 or later, and had not had a previous arthroplasty or osteochondral allograft transplantation involving the tibial plafond and/or talus.IndicationsContraindicationsPitfalls & Challenges.
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