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Second Metatarsophalangeal Joint Interpositional Arthroplasty Using Decellularized Human Dermal Allograft: Operative
Daniel D Bohl1, Alex J Idarraga1, Edward S Hur1
1Department of Orthopedic Surgery, Rush University Medical Center, Chicago, IL, USA.
Foot & Ankle Orthopaedics
|January 31, 2022
Summary
Joint-preserving surgery for osteoarthritis in the second metatarsophalangeal (MTP) joint is valuable. This study explores using a dermal allograft for interpositional arthroplasty as a viable alternative to autografts.
Area of Science:
- Orthopedic surgery
- Regenerative medicine
Background:
- Osteoarthritis of the second metatarsophalangeal (MTP) joint often requires surgical intervention.
- Traditional arthrodesis can negatively impact gait mechanics.
- Joint-preserving procedures are sought after to maintain function.
Purpose of the Study:
- To present an alternative joint-preserving technique for second MTP joint osteoarthritis.
- To evaluate the feasibility of using a human decellularized dermal allograft for interpositional arthroplasty.
Main Methods:
- A novel surgical technique involving interpositional arthroplasty using a decellularized dermal allograft.
- Procedure includes dorsal incision, joint exposure, cartilage removal from the metatarsal head, and allograft suturing.
- Level V, expert opinion evidence.
Main Results:
- The described technique of allograft interpositional arthroplasty is presented as a feasible surgical option.
- Human decellularized dermal allograft serves as a potential substitute for autograft material.
Conclusions:
- Allograft interpositional arthroplasty is a feasible technique for treating second MTP joint osteoarthritis.
- This method warrants further investigation as an alternative to current procedures, addressing donor site morbidity concerns.

