Change of Periprosthetic Bone Mineral Density after Cementless Total Hip Arthroplasty: Using Extensively Porous Coated Femoral Stem / 대한정형외과학회잡지
The Journal of the Korean Orthopaedic Association
;
: 331-336, 2002.
Artigo
em Coreano
| WPRIM
| ID: wpr-648974
ABSTRACT
PURPOSE:
To investigate the annual change of bone mineral density (BMD) around the femoral stem and identified the factors that influence the stress shielding effect in patients who have received extensively porous coated cementless stem. MATERIALS ANDMETHODS:
We reviewed seventy-four patients who were followed up for longer than three years after unilateral primary total hip replacement arthroplasty. The BMD was measured annually using a DEXA QDR 4500(R) on the proximal femur according at the Gruen zone. We analyzed the relationship between the results and the possible variates of periprosthetic bone remodeling.RESULTS:
In first year after operation, the BMDs of all Gruen zone decreased significantly. From the second year, the BMDs in Gruen zones 1, 2, and 7 were decreased significantly, but those in Gruen zones 3, 5, and 6 were increased. After three years, the BMD showed no significant change. Among the examined variables including sex, patient's age, stem size, and preoperative Singh's index, stem size and age were found to have strong predictive value.CONCLUSION:
Our findings suggest that periprosthetic BMD decreased in all areas over first postsurgical year. From the third year, the BMD stabilized.
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Assunto principal:
Artroplastia
/
Densidade Óssea
/
Remodelação Óssea
/
Artroplastia de Quadril
/
Fêmur
Tipo de estudo:
Estudo prognóstico
Limite:
Humanos
Idioma:
Coreano
Revista:
The Journal of the Korean Orthopaedic Association
Ano de publicação:
2002
Tipo de documento:
Artigo
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