Epidemiology and treatment of knee luxation

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Marcelo Henrique Gomes Muniz
Pedro Toledo Gomes Costa
Cássio Zini
Jose Eduardo Ferreira Manso

Abstract

Introduction: Knee dislocation is a rare and serious injury, associated with complications such as ligament instability, neurovascular injuries, loss of range of motion and associated fractures. High-energy traumas are the most common, with young men being the most affected.


Objectives: Analyze ligament and concomitant injuries, trauma mechanisms, patient profile and treatment for knee dislocations.


Method: Data collection through medical records of patients who met the diagnosis of knee dislocation, covering epidemiological, therapeutic and prognostic data, and treated at a trauma reference hospital. Demographic variables, causes of dislocation, mechanisms of trauma, side of the dislocated knee, injured ligaments and neurovascular impairment, fractures or concomitant injuries and their Schenck classification, were investigated.


Results: The most affected knee was the right, with greater involvement of the cruciate ligaments, with the KDI classification being more prevalent. Regarding therapeutic management, it was found that 18 patients (56.25%) had spontaneous reduction of the dislocation, while 14 (43.75%) needed to undergo closed reduction. Regarding treatment, 27 (84.37%) were treated surgically, with external fixator and ligament reconstruction, while 5 (15.62%) underwent conservative treatment with the use of an inguinopedic and inguinomaleolar plaster splint, brace and plaster.


Conclusion: Knee dislocation has a clear predilection for young men, being frequently caused by traffic accidents, and the high rate of associated injuries results in a worse prognosis. The most affected ligaments were the cruciates and the most prevalent classification was the KDI. This dislocation has a high rate of associated injuries, such as fractures, meniscal and neurovascular injuries, which leads to a worse prognosis, affecting quality of life. Knee dislocation has a heterogeneous profile and there are divergences between management and epidemiological data.

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References

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