Díaz-Borjón E, Lora-Martínez M, Montejo-Vargas J, Astudillo-Mata P

Language: English
References: 17
Page: 59-62
PDF size: 52.59 Kb.

ABSTRACT

A case of a 48 year old female patient is presented. She had recurrent dislocation of her hip prosthesis. Initially, she was treated by open reduction and eventually, with constrained prosthesis revision surgery. In spite of this surgery, the patient persisted with instability and implant dislocation. This dislocation occurred when the femur head dislodged from the polyethylene implant for a total of 3 times. The literature review revealed this kind of constrained implant dislocations is very unusual and only 3 cases have been reported. They are accompanied by rupture of the metal safety ring. In contrast, loose acetabular cup or polyethylene insert with the femur head inside, is the most common presentation. The patient was treated with revision surgery, and a non constrained standard cup was placed and reoriented.

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