Dislocated patella associated with below-knee amputation in adolescent patients.
One-third of the adolescent patients followed up in our prosthetic clinic have developed patellar dislocation. Four cases are described, and radiographs are evaluated for femoral-tibial alignment, patellar height, and tibial length. Patella alta was present in each patient. We propose that the forces associated with the patellar tendon-bearing prosthesis may produce elongation of the patellar tendon in young patients and predispose them to patellar instability.
C A
CA
Mowery
J A
JA
Herring
D
D
Jackson
D000293:Adolescent; D001186:Artificial Limbs; D001696:Biomechanical Phenomena; D002648:Child; D005260:Female; D005684:Gait; D006801:Humans; D004204:Joint Dislocations / Q000209:etiology*; D007869:Leg Injuries / Q000601:surgery*; D008297:Male; D010329:Patella / Q000293:injuries*; D011183:Postoperative Complications / Q000209:etiology*; D013710:Tendons / Q000503:physiopathology