Recurrent dislocation of the patella accompanying hypotrochlea of the femur and malalignment of the patella.
Ups J Med Sci
; 116(4): 285-8, 2011 Nov.
Article
em En
| MEDLINE
| ID: mdl-21919813
ABSTRACT
This case report describes a rare case of recurrent dislocation of the patella which was accompanied with trochlear dysplasia and malalignment of the patella in a 15-year-old girl. She complained of hemoarthrosis and recurrent patellar dislocation in the early knee flexion phase. Plain radiography and computed tomography (CT) showed patellar malalignment (quadriceps angle 20°) and severe dysplasia of the trochlea of the femur (sulcus angle 170°). Surgery was performed, consisting of trochleoplasty in addition to proximal and distal realignment. Trochleoplasty was undertaken using a modified Dejour technique. After surgery, the patient complained of joint contracture. Arthroscopic release of fibrous tissue relieved symptoms and obtained normal range of motion without patellar dislocation. Postoperative radiography and CT demonstrated improvement of the quadriceps angle (10°) and sulcus angle (140°).
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Base de dados:
MEDLINE
Assunto principal:
Patela
/
Mau Alinhamento Ósseo
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Luxação Patelar
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Fêmur
Limite:
Adolescent
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Female
/
Humans
Idioma:
En
Ano de publicação:
2011
Tipo de documento:
Article