Early Weight-Bearing Following Open Ankle Arthrodesis: Radiographic and Clinical Outcomes

Area of Science:

• Orthopaedic Surgery
• Foot and Ankle Reconstruction
• Arthrodesis Techniques

Background:

• Ankle arthrodesis is a common procedure for end-stage ankle arthritis.
• Traditional protocols involve prolonged non-weight-bearing, with optimal timing debated.
• Early weight-bearing may enhance functional recovery without impeding fusion.

Purpose of the Study:

• To assess radiographic union rates after open ankle arthrodesis with early weight-bearing.
• To evaluate clinical outcomes, including functional improvement, in patients undergoing early weight-bearing.
• To compare early versus traditional delayed weight-bearing protocols.

Main Methods:

• Retrospective study of 20 patients with end-stage ankle osteoarthritis.
• Standardized open ankle arthrodesis with anterior approach and crossed screw fixation.
• Initiation of partial weight-bearing at two weeks, progressing to full weight-bearing at 12 weeks.

Main Results:

• Achieved 95% radiographic union rate (19 out of 20 patients).
• Mean American Orthopaedic Foot and Ankle Society (AOFAS) score improved from 13.55 to 90.1.
• One case of nonunion and one minor, conservatively treated wound complication.

Conclusions:

• Early weight-bearing demonstrates high union rates and significant clinical improvement post-arthrodesis.
• This approach offers a low complication rate, supporting its safety and efficacy.
• Early mobilization is a viable alternative to delayed weight-bearing with stable fixation.