Orthopedics

Patellar Luxation in Dogs — Corrective Surgery

Displacement of the patella from its normal groove. Common in small and medium breeds.

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Patellar luxation is the displacement of the patella out of the femoral trochlear groove. It is the most common orthopedic condition in small-breed dogs (Yorkshire, Chihuahua, Poodle) and can also occur in large breeds. It is classified into 4 grades based on severity.

Clinical signs

  • Intermittent lameness
  • Characteristic "skipping" gait
  • Stiff or non-bending limb while walking
  • Pain on knee palpation
  • In severe cases, inability to bear weight

Treatment options

  • Trochleoplasty (groove deepening)
  • Tibial tuberosity transposition
  • Capsular imbrication
  • Femoral corrective osteotomy
  • Postoperative rehabilitation

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