Resources
Mar16
18

Patellofemoral Osteochondral Allograft Transplantation

Purpose: To describe the indications, surgical technique and rehabilitation for using a fresh osteochondral allograft (OCA) in patellofemoral reconstruction.

Summary:

  • While patellofemoral cartilage defects are common, there are three main indications for using an OCA transplant:
    • Defects that have extensive damage to the subchondral bone
    • Defects that are due to severe trochlear dysplasia
    • Osteoarthritis in young patients who are not candidates for arthroplasty.
  • Depending on the size and severity of the defect, a dowel press-fit technique or a shell technique can be utilized.
  • The shell technique is a more challenging procedure and is often used in cases where the defect is very large, or when matching the curvature is more difficult.
  • Tissue banks can determine appropriate graft matches through the use of a patient’s magnetic resonance images.
  • Unless other concurrent procedures are being performed, patellofemoral resurfacing does not require prolonged weight bearing restrictions. Immediate ambulation with the knee locked in full extension is permitted as tolerated.
  • There is limited literature on outcomes but success has been described in more than 2/3 of patients.

JRF Ortho Take Away: The complex anatomy of the patellofemoral region makes resurfacing in this area a challenging procedure. However, successful outcomes with the press-fit and shell technique have been described.

Click here to access the abstract or full publication.

Authors: Andreas H. Gomoll, Jack Farr, Betina Hinckel

Published: Operative Techniques in Sports Medicine

Institution: Brigham and Women’s Hospital

Other Resources

Jul17

Fresh Osteochondral Allograft...

The purpose of this study is to assess midterm clinical and radiographic outcomes after fresh osteochondral allograft...
Jul13

Contralateral Lateral Femoral...

Objective: To determine if contralateral grafts could be used for OCD lesions up to 20mm. Using Nano-CT scans,...