Cementless large-head metal-on-metal total hip arthroplasty in patients younger than 60 years--a multicenter early result.
Kaohsiung J Med Sci
; 28(1): 30-7, 2012 Jan.
Article
en En
| MEDLINE
| ID: mdl-22226059
ABSTRACT
Large-head metal-on-metal total hip arthroplasty has the theoretical advantages of less wear and better range of motion than traditional polyethylene bearings and seems to be a better choice for young and active patients. We conducted a retrospective study and reported the early results of using such prostheses in 59 patients (70 hips) with a mean age of 43.1 years (range, 23-59 years) at the time of surgery. Osteonecrosis of the femoral head accounted for most diagnoses. Harris Hip Scores and hip range of motion both significantly improved (p<0.001) at an average follow-up of 32.6 months (range, 24-48 months). Only one intraoperative calcar fissure was encountered, and it was fixated by cerclage wiring; there was no infection, dislocation, or osteolysis around either the cup or the stem at the latest follow-up. A postoperative gap in the acetabular component was noted in 24 hips, with a mean depth of 1.11 mm, but this was not correlated with the functional score (p=0.291). Transient thigh pain, which resolved after 6 months, was observed in six patients but was not related to either the postoperative gap or cup inclination (p=1.000 and p=0.664, respectively). All patients resumed their original jobs and recreational activities with little discomfort. Thus far, large-head metal-on-metal total hip arthroplasty has shown excellent early results. The long-term results and the effects of metal debris and potentially elevated serum metal ion levels require further observation.
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Cementos para Huesos
/
Artroplastia de Reemplazo de Cadera
/
Metales
Tipo de estudio:
Clinical_trials
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Diagnostic_studies
/
Etiology_studies
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Observational_studies
/
Prognostic_studies
Límite:
Adult
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Female
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Humans
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Male
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Middle aged
Idioma:
En
Revista:
Kaohsiung J Med Sci
Asunto de la revista:
MEDICINA
Año:
2012
Tipo del documento:
Article
País de afiliación:
Taiwán