The management of superior dislocation of the patella with interlocking osteophytes--an update on a rare problem.
The superior dislocation of the patella with interlocking osteophytes is a rare condition. A review of the English literature revealed only 12 reported cases. The purpose of reviewing these case reports is to highlight the unusual presentation and the injury mechanism in 2 of our patients, and to present our treatment algorithm. Closed reduction with manipulation of the patella, with or without anaesthesia, was performed without difficulty. We recommend an intermediate step of trying a regional nerve block before proceeding to general anaesthesia. Our patients had full range-of-motion after reduction and they were symptom-free after 3 years of follow-up. There were no recurrent dislocations in our patients.
Yip
D K H
DK
Department of Orthopaedics and Traumatology, The University of Hong Kong, Queen Mary Hospital, Hong Kong. dkhyip@hku.hk
Wong
J W K
JW
Sun
L K
LK
Wong
N M
NM
Chan
C W
CW
Lau
P Y
PY
D000368:Aged; D000369:Aged, 80 and over; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D031222:Patellar Dislocation / Q000000981:diagnostic imaging / Q000601:surgery*; D011859:Radiography; D016059:Range of Motion, Articular