Treatment of Medial Patellar Luxation by Placement of a Cortical Screw on the Medial Side of the Tibial Crest in a Dog

초록

An 8 kg, 9-month-old castrated male Shiba Inu presented with a history of intermittent bilateral hind limblameness. On examination, grade III medial patellar luxation of the bilateral hind limbs was diagnosed. A novel surgicalmethod involving relatively noninvasive tibial tuberosity transposition was used to restore normal alignment of thequadriceps mechanism. The procedure involved an incision on the medial cortical bone of the tibial tuberosity alongthe tibial crest and placement of a cortical screw on the medial side of the tibial crest to laterally transpose the tibialtuberosity. Lameness and patellar luxation of bilateral hind limbs were improved at a 3-month postoperative examination. This technique could be considered an effective treatment for medial patellar luxation in skeletal immature patients.

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