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Chapter 36 Video 8: Arthroscopic Treatment of Cam Type Impingement Secondary to Perthes Disease

January 05, 2018

Contributors: Victor Manuel Ilizaliturri Sanchez, Jr MD; Ruben Arriaga Sanchez, MD; Carlos Enrique Suarez, MD

Central compartment arthroscopy demonstrates a massive anterior chondral flap due to Perthes Disease. The labrum is still attached to the rim behind the flap. The flap is removed with a shaver, and microfracture is performed on the exposed subchondral bone. Imaging demonstrates a cam deformity secondary to Perthes disease, and this is demonstrated arthroscopically through a capsulotomy. The capsule is retracted posteriorly to reveal the vascularity of the femoral head. A spherical burr is used to reshape the cam deformity, and care is taken to protect the vessels supplying the femoral head.

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