Knee arthrodesis with the Wichita fusion nail

Area of Science:

• Orthopedic Surgery
• Reconstructive Surgery

Background:

• Failed knee replacement presents a significant challenge in orthopedic surgery.
• Revision arthroplasty may not always be feasible, necessitating alternative salvage procedures.

Purpose of the Study:

• To evaluate the efficacy of knee arthrodesis in patients with a history of failed knee replacement.
• To compare fusion rates and outcomes between different arthrodesis techniques.

Main Methods:

• A retrospective review of 32 patients undergoing knee arthrodesis post-failed knee replacement.
• Arthrodesis was performed using Wichita fusion nail, external fixation, plating, or intramedullary nailing.
• Minimum 1-year clinical follow-up was conducted.

Main Results:

• The Wichita fusion nail achieved a fusion rate of 90.9% (10/11 patients) within a mean of 4.5 months.
• Other methods resulted in a 52.4% fusion rate (11/21 patients) over a mean of 6.5 months.
• The mean patient age was 68.6 years.

Conclusions:

• Knee arthrodesis is an effective salvage procedure for failed knee replacement.
• The Wichita fusion nail demonstrates a higher fusion rate compared to other techniques in this patient cohort.