Using the OATS Procedure to Restore Function in a Hip Fracture-Dislocation With Residual Cartilage Deformity

Video case study highlights OATS procedure

A 21-year-old female presented to Cleveland Clinic’s Hip Preservation Center reporting a restricted range of motion and progressive pain in her right hip. She was involved in a motor vehicle collision and experienced a dislocation of the femoral head and sustained a Pipkin-type fracture that went on to form a malunion of the proximal head-neck junction.

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Her anatomy was otherwise preserved in terms of quality of cartilage and bony morphology, explains Atul Kamath, MD, who directs the center. He planned to manage treatment with surgical dislocation.

Performing an osteoarticular transfer system (OATS) procedure

At the time of surgery, he noted that the Pipkin area of the fracture, the femoral head, was not viable for grafting back to the donor site. He performed an osteoarticular transfer system (OATS) procedure, utilizing an autograft from the patient’s femoral head-neck junction.

Elaborating on the OATS procedure, he says. “Plugs of cartilage were used for mosaicplasty of the femoral head and, then, irregularities were filled in with juvenile cartilage cells to perform a Highland cartilage restoration of the significant cartilage injury to the femoral head.”

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At the time of his latest follow-up, the patient reported excellent hip function and symmetric hip range of motion.

Watch the video case study