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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...

Patellar instability is a common pathology of the knee in pediatric patients. The management this condition can be challenge for orthopedic surgeon, and comprehensive understanding anatomy biomechanics structures around utmost importance formulating treatment plan. Predisposing factors related to: trochlear patellar morphological abnormalities, ligamentous stabilizers, limb geometries axial pla...

Traumatic patellar dislocation is an injury that can predispose an individual to recurrent instability, chronic pain, and loss of function. These injuries are usually associated with disruption of the medial patellofemoral ligament and often have osteochondral lesions present. We feel that restoration of the normal anatomy will provide the best chance for return to full function. Therefore, in ...

PURPOSE Recurrent patellar dislocation is often associated with genu valgum. The purpose of this study was to analyze the short-term results of single-incision, closing-wedge distal femoral osteotomy (CWDFO) combined with medial reefing and lateral release for recurrent patellar instability with genu valgum. MATERIALS AND METHODS Combined CWDFO/medial reefing/lateral release was performed on ...

The patella is a motorical important part of the feline stifle joint. By gliding proximally and distally inside trochlear groove, its position continually changes during each step mobility. Stifle diseases like patellar luxation, cruciate ligament rupture, or tendon disease as well consecutive surgical interventions may cause dislocation.

OBJECTIVE The aim of this study was to compare the surgical results from reconstruction of the medial patellofemoral ligament (MPFL) with non-operative treatment of primary patellar dislocation. METHODS Thirty-nine patients (41 knees) with patellar dislocation were randomized into two groups. One group was treated conservatively (immobilization and physiotherapy) and other was treated surgica...