Proximal row carpectomy with allograft scaffold interposition arthroplasty

Area of Science:

• Orthopedic Surgery
• Regenerative Medicine

Background:

• Severe wrist arthritis, particularly with intercarpal involvement, poses treatment challenges.
• Proximal row carpectomy (PRC) is effective for wrist arthritis but traditionally contraindicated with lunate-capitate joint involvement.
• Existing methods for advanced wrist arthritis often involve sacrificing motion or using local tissue flaps.

Purpose of the Study:

• To present a novel technique for motion-preserving surgery in severe wrist arthritis.
• To extend the indications for proximal row carpectomy using interposition arthroplasty.
• To evaluate the use of acellular dermal allograft in managing extensive wrist joint degeneration.

Main Methods:

• A surgical technique utilizing acellular dermal allograft as an interposition arthroplasty is described.
• The allograft is used to cover eroded articular surfaces, specifically addressing lunate-capitate joint involvement.
• This method modifies the traditional proximal row carpectomy procedure.

Main Results:

• The described technique allows for motion preservation in cases of severe wrist arthritis previously considered untreatable with PRC.
• Acellular dermal allograft serves as a viable scaffold for reconstructing articular surfaces.
• This approach offers an alternative to more invasive or motion-sacrificing procedures.

Conclusions:

• Acellular dermal allograft interposition arthroplasty is a promising solution for motion preservation in severe wrist arthritis.
• This technique expands the applicability of proximal row carpectomy to include joints with significant articular erosion.
• Further research should explore long-term outcomes and patient-specific results.