Allograft total ankle replacement--a dead ringer to the natural joint

Area of Science:

• Orthopedic surgery
• Regenerative medicine
• Joint reconstruction

Background:

• End-stage ankle arthritis presents a significant challenge for orthopedic surgeons.
• Current alternatives to ankle arthrodesis include total ankle replacement, supramalleolar osteotomy, and distraction arthroplasty.
• Fresh bipolar osteochondral allografts are an emerging option for ankle fusion alternatives.

Purpose of the Study:

• To review the basic science supporting fresh bipolar osteochondral allografts for ankle joint reconstruction.
• To analyze existing case series on this treatment modality.
• To present the authors' preferred surgical technique and short-term outcomes.

Main Methods:

• Literature review of basic science principles.
• Analysis of five reported case series on ankle osteochondral allografts.
• Description of a specific surgical technique for allograft transplantation.
• Evaluation of short-term clinical results.

Main Results:

• The article synthesizes the scientific rationale for using osteochondral allografts in the ankle.
• It critically examines the findings from previously published case series.
• The authors detail their surgical approach and report preliminary short-term outcomes.

Conclusions:

• Fresh bipolar osteochondral allografts represent a viable, albeit sporadically reported, alternative to ankle arthrodesis.
• Further research and larger studies are warranted to establish the long-term efficacy of this technique.
• The authors' technique and short-term results suggest potential for this approach in managing end-stage ankle arthritis.