Specialists

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Osteochondritis Dissecans of the Knee

Basics Description A pathologic joint entity of localized bone necrosis with overlying cartilage injury Osteochondritis dissecans primarily affects the knee, but it is also seen in the hip (in late Legg-Calve-Perthes disease), elbow, and ankle. Osteochondritis dissecans occurs primarily in the 2nd decade of life, but it also is seen in children and older […]

Meniscus Tear

Basics Description A meniscus tear is an acute or degenerative injury to the meniscal fibrocartilage of the knee. Classification: Acute tear: Longitudinal (50-90%) Radial (6%) Flap (4%) Degenerative tear: Mostly horizontal cleavage or complex tears Epidemiology Acute tears occur mainly in adolescents and young adults, and degenerative tears predominate in the 40-60-year-old population. Degenerative […]

Knee Examination in the Child

Basics Description It is important, during a knee examination, to keep in mind the child’s age and to understand the age-specific pediatric knee disorders. Congenital hyperextension or dislocation of the knee: Varies from simple hyperextension to anterior dislocation of the tibia on the femur Hyperextended knee presents at birth. A hyperextensible knee resolves spontaneously, […]

Knee Anatomy and Examination

Basics Description Anatomy of the knee consists of compartments, bones, menisci, ligaments, muscles, and nerves. 3 compartments: Medial, lateral, and patellofemoral Bones: Patella: Serves as fulcrum to aid knee extension Medial and lateral menisci: Fibrocartilaginous structures in medial and lateral femorotibial compartments Aid in joint lubrication and nutrition and in load distribution across articular […]