40-223
Influencia de la vía de abordaje y de la posición de la cúpula acetabular en la luxación de la artroplastia total de cadera. Estudio caso-control
Influence of the surgical approach and acetabular cup position in the dislocations of hip arthroplasties. A case control
R. GAVA (*), D. HERNÁNDEZ VAQUERO (*) (**), A. SUÁREZ VÁZQUEZ (*), M. DE CIMA SUÁREZ (*), J. CERVERO (*) (*) SERVICIO DE CIRUGÍA ORTOPÉDICA Y TRAUMATOLOGÍA. HOSPITAL SAN AGUSTÍN. AVILES. (**) DEPARTAMENTO DE CIRUGÍA. FACULTAD DE MEDICINA. OVIEDO
Recepción:
15/09/2008
Aceptación:
15/09/2008
Publicación:
15/09/2008
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Resumen (ES)
The surgical approach and the cup position have
been related with the dislocations of total hip arthroplasty. We
have studied the presence of this complication in 758
Bihapro cementless arthroplasties. We got a case group of
21 dislocations; then we selected a control group of 42
patients without luxation to design a case-control study. The
case group had a higher rate of dislocation in males (66.7 %
versus 42.8 % in females) although this difference was not
statistically significant. We didnt observe any difference in
the frequency of luxations relating to the anterior or lateral
surgical approach, however in the posterior approach the
dislocation appeared only in one case (4.8 % of the all dislocations)
with statistically differences (p=0.005). We also
observed statistically significant differences of luxations
when the acetabular cup inclination was higher than 50º (76.2
%), or when the cup anteversion was equal or higher than 20º
(52.4 %). The posterior surgical approach with capsular and
muscular suture presented a lower rate of dislocation after a
primary arthroplasty compared with the anterior or lateral
approachs. An inclination bigger than 50º or an anteversion
bigger than 20º seems to be a risk factor of luxation.
been related with the dislocations of total hip arthroplasty. We
have studied the presence of this complication in 758
Bihapro cementless arthroplasties. We got a case group of
21 dislocations; then we selected a control group of 42
patients without luxation to design a case-control study. The
case group had a higher rate of dislocation in males (66.7 %
versus 42.8 % in females) although this difference was not
statistically significant. We didnt observe any difference in
the frequency of luxations relating to the anterior or lateral
surgical approach, however in the posterior approach the
dislocation appeared only in one case (4.8 % of the all dislocations)
with statistically differences (p=0.005). We also
observed statistically significant differences of luxations
when the acetabular cup inclination was higher than 50º (76.2
%), or when the cup anteversion was equal or higher than 20º
(52.4 %). The posterior surgical approach with capsular and
muscular suture presented a lower rate of dislocation after a
primary arthroplasty compared with the anterior or lateral
approachs. An inclination bigger than 50º or an anteversion
bigger than 20º seems to be a risk factor of luxation.
Palabras clave (ES):
Acetábulo
Prótesis
Artroplastia
total
Abordaje
Posterior
Lateral
Luxación
Cadera
Cotilo
acetabular
Componente
Resumen (EN)
The surgical approach and the cup position have
been related with the dislocations of total hip arthroplasty. We
have studied the presence of this complication in 758
Bihapro cementless arthroplasties. We got a case group of
21 dislocations; then we selected a control group of 42
patients without luxation to design a case-control study. The
case group had a higher rate of dislocation in males (66.7 %
versus 42.8 % in females) although this difference was not
statistically significant. We didnt observe any difference in
the frequency of luxations relating to the anterior or lateral
surgical approach, however in the posterior approach the
dislocation appeared only in one case (4.8 % of the all dislocations)
with statistically differences (p=0.005). We also
observed statistically significant differences of luxations
when the acetabular cup inclination was higher than 50º (76.2
%), or when the cup anteversion was equal or higher than 20º
(52.4 %). The posterior surgical approach with capsular and
muscular suture presented a lower rate of dislocation after a
primary arthroplasty compared with the anterior or lateral
approachs. An inclination bigger than 50º or an anteversion
bigger than 20º seems to be a risk factor of luxation.
been related with the dislocations of total hip arthroplasty. We
have studied the presence of this complication in 758
Bihapro cementless arthroplasties. We got a case group of
21 dislocations; then we selected a control group of 42
patients without luxation to design a case-control study. The
case group had a higher rate of dislocation in males (66.7 %
versus 42.8 % in females) although this difference was not
statistically significant. We didnt observe any difference in
the frequency of luxations relating to the anterior or lateral
surgical approach, however in the posterior approach the
dislocation appeared only in one case (4.8 % of the all dislocations)
with statistically differences (p=0.005). We also
observed statistically significant differences of luxations
when the acetabular cup inclination was higher than 50º (76.2
%), or when the cup anteversion was equal or higher than 20º
(52.4 %). The posterior surgical approach with capsular and
muscular suture presented a lower rate of dislocation after a
primary arthroplasty compared with the anterior or lateral
approachs. An inclination bigger than 50º or an anteversion
bigger than 20º seems to be a risk factor of luxation.
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