Case Study: Patella Fracture

History

This is an 8 month old, quarter-horse colt that sustained an injury to his left stifle. The cause of the injury was unknown, but he did have a superficial skin abrasion over the front of the stifle. He was 4/5 lame on the left hind and appeared to be partially collapsing in the stifle when fully weight bearing.

Radiographs (X-Ray)

Radiographs show a fracture of the patella (knee cap). The fracture-line runs vertically up the inside 1/3 of the patella. These images are taken from top to bottom- looking down on the patella.

Ultrasound

Ultrasound shows moderate damage to the medial (inside) femoropatellar ligament. (Ligament on the inside of the patella that attaches to the femur preventing the patella from dislocating laterally). There was also a moderate tear of the medial retinaculum of the medial femoropatellar joint capsule. The collateral ligaments (stabilizing ligaments) of the femorotibial joint appeared intact.

Treatment

Surgical treatment of the fracture was performed. The fracture was reduced and two screws were placed to hold the fragment in place.

Outcome

24 hours post-operatively the patient appeared comfortable and able to ambulate at the walk. Updates will be posted when available.

      

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