Dealing with the Stiff Ankle: Preoperative and Late Occurrence

Area of Science:

• Orthopedic Surgery
• Biomedical Engineering
• Reconstructive Surgery

Background:

• Stiffness and pain are common complications following total ankle replacement (TAR).
• Scarring, hypertrophic bone, and tendon adhesions can significantly impair ankle function after TAR.
• Preoperative assessment is essential to identify the specific pathological processes contributing to stiffness.

Purpose of the Study:

• To outline the essential surgical techniques for managing stiff total ankle replacements.
• To emphasize the importance of component size, implantation accuracy, and joint balancing.
• To highlight the necessity of a thorough preoperative diagnostic workup for effective treatment planning.

Main Methods:

• Surgical resection of scarred capsular structures.
• Hypertrophic bone debridement.
• Careful release of adhered tendons.
• Accurate assessment and implantation of appropriately sized prosthetic components.
• Preoperative diagnostic workup to identify underlying pathologies.

Main Results:

• Appropriate surgical intervention can lead to improved outcomes in stiff ankle replacements.
• Correct component selection and implantation are critical for restoring normal ankle function.
• Joint balancing may reduce the likelihood of scar tissue and heterotopic bone formation, although this requires further proof.

Conclusions:

• Management of stiff total ankle replacements requires meticulous surgical technique, including soft tissue release and bone debridement.
• Optimizing component fit, positioning, and overall joint balance is paramount for functional restoration.
• A comprehensive preoperative evaluation is mandatory to address all causative factors of stiffness and pain for successful treatment.