Capsular Interposition Arthroplasty With Percutaneous Suture Anchoring: A Pragmatic and Novel Surgical Technique for Hallux Rigidus.

There is support for the use of capsular interposition arthroplasty (CIA) as an alternative to arthrodesis in the surgical treatment of hallux rigidus. In this technical report, the authors describe novel technical variations to the traditional capsular interposition arthroplasty that are anatomically rational, reproducible, and efficient. This technique was developed by the primary author and has been the preferred approach to CIA for over 10 years. The key technical differences of the procedure are metatarsal head preparation, the use of a proximally based capsular graft, and anchoring by utilizing a simple percutaneous anchoring technique. This approach maintains anatomic joint morphology, preserves vascular supply, and bone stock to facilitate future procedures if required.