Open AccessNeglected locked vertical patellar dislocation
Author(s) -
Rakesh Gupta,
Vineeta Gupta,
Sukhbir Singh Sangwan,
Pradeep Kamboj
Publication year - 2012
Publication title -
indian journal of orthopaedics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.434
H-Index - 33
eISSN - 1998-3727
pISSN - 0019-5413
DOI - 10.4103/0019-5413.101045
Subject(s) - medicine , dislocation , retinaculum , presentation (obstetrics) , rotation (mathematics) , external rotation , patella , reduction (mathematics) , orthodontics , surgery , anatomy , condensed matter physics , geometry , physics , mathematics , wrist
Patellar dislocations occurring about the vertical and horizontal axis are rare and irreducible. The neglected patellar dislocation is still rarer. We describe the clinical presentation and management of a case of neglected vertical patellar dislocation in a 6 year-old boy who sustained an external rotational strain with a laterally directed force to his knee. Initially the diagnosis was missed and 2 months later open reduction was done. The increased tension generated by the rotation of the lateral extensor retinaculum kept the patella locked in the lateral gutter even with the knee in full extension. Traumatic patellar dislocation with rotation around a vertical axis has been described earlier, but no such neglected case has been reported to the best of our knowledge.