Patellar inversion: 180 degree rotation of the patella around its vertical axis within the intercondylar notch

Mittal, Samarth; Madegowda, Arkesh; Shankar, Vikas; Singh, Swapnil; Sharma, Pankaj; Mittal, Ravi

doi:10.1016/j.knee.2016.10.005

Cited by 3 publications

(2 citation statements)

References 17 publications

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“…A neglected dislocation, however, presents additional problems as there is a lot of fibrosis which needs to be carefully removed, avoiding injury to the chondral surface. As has been observed by other authors [2,6,7] and also seen in our case, a lot of releases are required before the patella can be mobilized and relocated back into the trochlear groove. This may lead to soft tissue healing problems, as was seen in our case and also the case reported by Singhi et al [7].…”

Section: Discussionsupporting

confidence: 81%

“…Interestingly, this patient had full knee range of motion with only complaints of knee pain while climbing stairs. The authors found that there was a lot of fibrosis around the patella and trochlea which was carefully dissected and removed during open reduction [ 6 ]. Singhi et al reported a 22 year male with a 4-year-old neglected patellar dislocation with a range of motion of 20–120° and complaints of painful knee range of motion affecting his activities of daily living.…”

Section: Discussionmentioning

confidence: 99%

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Neglected Locked Patellar Dislocation in an Adult Female: Report of a Rare Case

Chaudhary¹,

Gandhi²,

Koichade³

et al. 2021

JOCR

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Introduction: Dislocation of patella is a very common injury which usually reduces spontaneously or can be reduced easily using gentle manipulation. Irreducible patellar dislocations are rare and usually result due to either rotation of patella along the horizontal or vertical axis or due to bony impaction. Neglected locked patellar dislocations are extremely rare injuries presenting additional challenges. Case Report: We are reporting a case of a 24-year female who presented to us 4 months after suffering a knee injury for which she received native treatment initially. On presentation, patient was able to walk with a limp and some discomfort but was unable to squat or sit cross-legged. Clinical examination revealed a patellar dislocation which was irreducible. On open reduction, the patella was found to be locked in the lateral gutter with rotation along its vertical axis and with an osteochondral fracture of its medial margin. There were a lot of fibrotic adhesions which required extensive release, following which the patella could be derotated and reduced into the trochlear groove. The medial retinaculum was repaired using transosseous sutures. Postoperatively, the patient developed wound edge necrosis which was managed with debridement and secondary suturing. At 1-year follow-up patient had almost full knee range of motion without any signs of patellar pain or instability and was able to squat and sit cross-legged. Conclusion: Unlike acute irreducible patellar dislocations which can be managed easily with open reduction, a neglected dislocation necessitates wider surgical exposure and a lot of soft tissue releases, which may jeopardize vascularity of the soft tissues leading to wound healing problems. Release of all adhesions while taking care to prevent further chondral injury, adequate lateral retinacular release, derotation of patella to relocate it into trochlear groove, and meticulous medial retinacular repair is essential for a successful outcome. Keywords

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Section: Discussionsupporting

confidence: 81%

Section: Discussionmentioning

confidence: 99%

Neglected Locked Patellar Dislocation in an Adult Female: Report of a Rare Case

Chaudhary¹,

Gandhi²,

Koichade³

et al. 2021

JOCR

View full text Add to dashboard Cite

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A Rotated and Laterally Displaced Patellar Dislocation

Frankel

Bux

Schloss

et al. 2020

The Journal of Emergency Medicine

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Unusual Horizontal Patellar Dislocation Reduced without General Anesthesia

Uluyardımcı

Bozkurt

Öçgüder

et al. 2019

JBJS Case Connector

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Case: Horizontal patellar dislocation is a rare clinical event, and there is no consensus on its management. We describe 2 relatively elderly patients with 2 different types of horizontal patellar dislocation who were successfully treated with closed reduction without general anesthesia. Conclusion: Appropriate and gently managed closed reduction without general anesthesia may be successful in cases of acute horizontal patellar dislocation, provided there are no osteophytes or an injury that requires surgical treatment. With closed reduction and subsequent rehabilitation, patients can regain functional capacity quickly.

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Patellar inversion: 180 degree rotation of the patella around its vertical axis within the intercondylar notch

Cited by 3 publications

References 17 publications

Neglected Locked Patellar Dislocation in an Adult Female: Report of a Rare Case

Neglected Locked Patellar Dislocation in an Adult Female: Report of a Rare Case

A Rotated and Laterally Displaced Patellar Dislocation

Unusual Horizontal Patellar Dislocation Reduced without General Anesthesia

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