The aim of this study was to evaluate post-operative range motion stifle joints in dogs affected with medial patellar luxation order compare two surgical techniques: trochlear wedge recession vs. block recession. done 67 from 54 small breed (21 Mini-Pinschers, 16 Chihuahuas, 11 Pomeranians and 6 Yorkshire terriers). From these, 31 underwent surgery the other 36: surgery. In surgery, groove deep...

PURPOSE The aim of this study was to investigate the pathoanatomic features of patellar instability by arthroscopically comparing patellofemoral congruence with rotation of the knee joint and/or electrical stimulation of the quadriceps (ESQ) between knees with and without patellar instability. METHODS We retrospectively examined 83 knee joints in 83 patients. The joints were classified into 2...

Lesions in canine stifle joints after previous trochleoplasty surgery were documented. In four clinical cases arthrotomies were performed due to stifle pain after previous trochlear deepening procedures. A small area of hyaline cartilage remained in the groove of the stifles in cases where previous wedge trochleoplasties had been performed. All of the stifles had significant areas of eburnation...

Patellofemoral disorders must be approached through an appropriate process of diagnostic framing, performed using language that is, as far as possible, unequivocal and a validated and organic classification system. At present, the classification proposed by the Lyonnaise school, which fulfills these requirements, is the most complete. This classification divides patellofemoral disorders into th...

Complications of patellar dislocation include osteochondral injury of the lateral femoral condyle and patella. Most cases of osteochondral injury occur in the anterior region, which is the non-weight-bearing portion of the lateral femoral condyle. We describe two patients with osteochondral injury of the weight-bearing surface of the lateral femoral condyle associated with lateral dislocation o...

Decreases in patellofemoral pain have been demonstrated with bracing; however, the mechanisms of pain reduction remain unclear. Our purpose was to evaluate the hypothesis that patellofemoral bracing decreases peak pressure on the retropatellar surface through an increase in patellofemoral contact area. Nine cadaveric knees were tested during simulated free-speed walking with no brace, a knee sl...

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The case of a patient aged 73 years who, following an accidental fall on a staircase, suffered an acute intraarticular dislocation in the left knee-cap is presented. This exceptional dislocation presented incarceration of the proximal kneecap pole in the femoral intercondylar groove. A reduction was carried out under general anaesthetic due to pain and muscular contraction in the attempts at re...