Superior dislocation of the patella: a case report.
BACKGROUND
Superior dislocation of the patella is an uncommon condition that mainly occurs in knees with a high patella and medial femorotibial degenerative arthritis. There are no previous reports of this condition occurring in association with tibial valgus osteotomy.


METHODS
We report the case of a patient in whom vertical dislocation recurred twice at 4 months after tibial valgus osteotomy. To avert additional recurrence or new dislocations, the patient was treated surgically to remove the existing osteophytes.


CONCLUSIONS
An arthroscopic approach was decided because of the lower associated morbidity and good results with this technique compared to open surgery.
Cusco
Xavier
X
Orthopedic and Trauma Surgery, Fundación García Cugat Hospital Quiron Barcelona - Spain. roberto6jas@gmail.com.
Seijas
Roberto
R
Ares
Oscar
O
Cugat
Jose R
JR
Garcia-Balletbo
Montserrat
M
Cugat
Ramon
R