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Superior Dislocation of the Patella: a Case Report

Overview
Journal J Orthop Surg Res
Publisher Biomed Central
Specialty Orthopedics
Date 2009 Aug 1
PMID 19642996
Citations 4
Authors
Xavier Cusco
Roberto Seijas
Oscar Ares
Jose R Cugat
Montserrat Garcia-Balletbo
Ramon Cugat
Affiliations
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Abstract

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.

Case Report: 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.

Citing Articles

[A rare cause of an acutely locked knee joint: superior patellar dislocation].

Glasbrenner J, Briese T, Raschke M, Herbst E, Kittl C Unfallchirurg. 2020; 124(5):407-411.

PMID: 33067695 PMC: 8099811. DOI: 10.1007/s00113-020-00907-2.

Superior Patellar Dislocation Misdiagnosed as Patellar Tendon Rupture: The Value of Ultrasonography.

Boonrod A, Sumanont S, Boonard M, Boonrod A Case Rep Orthop. 2017; 2016:2037381.

PMID: 28101389 PMC: 5215292. DOI: 10.1155/2016/2037381.

Superior dislocation of the patella: a pathognomonic finding and review of literature.

van Egmond P, Vermeulen M, van Dijke C, Graat H Skeletal Radiol. 2016; 46(2):259-264.

PMID: 27915446 DOI: 10.1007/s00256-016-2540-2.

Superior patellar dislocation: the value of clinical examination and radiological investigation.

Clift R, El-Alami W BMJ Case Rep. 2012; 2012.

PMID: 23230252 PMC: 4544200. DOI: 10.1136/bcr-2012-007571.

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