Horizontal intra-articular dislocation of the patella in an 88-year-old woman

Desai, Aishwarya; Allcock, S.; Hardy, S. K.

doi:10.1016/0968-0160(96)00010-5

Cited by 8 publications

(2 citation statements)

References 6 publications

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“…Only 47 cases of this rare traumatic condition have been reported in published literature. Banks classified the inferior patellar dislocation into two types; the rare degenerate Type II and the common Type I injuries (1,5,11,17,18). Type I dislocations are usually present among adolescents (14,17).…”

Section: Discussionmentioning

confidence: 99%

Arthroscopic treatment of femoral trochlear notch fracture caused by intra-articular dislocation of the patella

Wiegand,

Bűcs,

Patczai

2024

MTO

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This case report presents a traumatic intra-articular patellar dislocation – associated intercondylar fracture of the distal femur – and the consequent arthroscope assisted reduction and percutaneous screw fixation. To the best of our knowledge, this is the first case in which the arthroscope assisted operative reduction and percutaneous screw fixation of the fracture fragment has been demonstrated. Our patient was a 55-year-old female who was treated by the aforementioned method which concluded with excellent results.

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Section: Discussionmentioning

confidence: 99%

Arthroscopic treatment of femoral trochlear notch fracture caused by intra-articular dislocation of the patella

Wiegand,

Bűcs,

Patczai

2024

MTO

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“…Acute inferior dislocation of the patella is a rare diagnosis and has been described in adolescent patients and in elderly degenerate knee joints. [1][2][3][4][5][6] However, inferior dislocation following a posterior cruciate retaining total knee replacement (TKR) has not been reported in the literature.…”

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confidence: 99%

Inferior Dislocation of Patella after a Total Knee Replacement—A Case Report

Shivarathre

Keys

2011

J Knee Surg

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Acute inferior dislocation of the patella is rare but has been documented. However, there has been no published report of inferior dislocation of the patella following a total knee replacement (TKR). A 62-year-old man underwent a posterior cruciate retaining TKR Anatomic Graduated Component (AGC) (Biomet, Warsaw, IN) without patellar resurfacing. Perioperative events were unremarkable. The patient presented a year later with an acutely painful locked knee at 60 degrees flexion. Physical examination and radiographs confirmed an inferior dislocation of the patella due to interlocking of superior pole patellar osteophytes on the anterior edge of the intercondylar box of the femoral component. Closed reduction under anesthesia failed and open reduction with debridement of the osteophytes resulted in excellent patellar tracking and a good functional result without any recurrence. Surgeons need to be aware of this rare complication of acute locked knee following TKR which may require open reduction. Also, the debridement of the osteophytes or even a resurfacing of the patella may be a more definitive solution to such patellofemoral problems.

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