The Radiographic Comparative Study of the Unicompartmental Knee Arthroplasty: Manual versus Navigation System / 대한정형외과학회잡지
The Journal of the Korean Orthopaedic Association
; : 140-147, 2006.
Artigo
em Coreano
| WPRIM (Pacífico Ocidental)
| ID: wpr-656105
Biblioteca responsável:
WPRO
ABSTRACT
PURPOSE:
To compare the radiographic results of unicompartmental knee arthroplasty using a navigation system with those using a manual alignment system. MATERIALS ANDMETHODS:
The results of 50 cases (46 patients) of unicompartmental knee arthroplasty using a navigation system (24 patients, 25 cases) and using a manual alignment system (22 patients, 25 cases) were evaluated. Knee anteroposterior, lateral, and weight-bearing full-length lower extremity radiographs before and after the arthroplasty were used for the measurements.RESULTS:
The mean postoperative femorotibial alignment was 3.6 degrees of valgus in the manual alignment group and 5.4 degrees of valgus in the navigation group. The postoperative mechanical axis measured using Kennedy and White's method was located at zone 1 in 4 cases (16%), at zone 2 or C in 21 cases (84%) in the manual group, and at zone C for all cases in the navigation group (p=0.001). In the coronal axis of the femoral component, 11 cases (44%) were excellent, 7 cases (28%) were good and, 7 cases (28%) were poor in the manual alignment group. In the navigation group, 15 cases (60%) were excellent and 10 cases (40%) were good and there were no poor results (p0.05). In the sagittal axis of the tibial component, 9 cases (36%) showed poor results in manual group and there were no poor results in the navigation group (p<0.05).CONCLUSION:
Unicompartmental knee arthroplasty using navigation produced better results in restoring the alignment of the prosthesis and the mechanical axis of the lower extremity than that using manual alignment.
Texto completo:
Disponível
Base de dados:
WPRIM (Pacífico Ocidental)
Assunto principal:
Artroplastia
/
Próteses e Implantes
/
Vértebra Cervical Áxis
/
Suporte de Carga
/
Extremidade Inferior
/
Joelho
Limite:
Humanos
Idioma:
Coreano
Revista:
The Journal of the Korean Orthopaedic Association
Ano de publicação:
2006
Tipo de documento:
Artigo