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1.
Yonsei Medical Journal ; : 809-817, 2011.
Article in English | WPRIM | ID: wpr-155379

ABSTRACT

PURPOSE: This study investigated the effects of multiple drilling on the immature capital femoral epiphysis following ischemic injury in a piglet model. MATERIALS AND METHODS: Ischemic necrosis of capital femoral epiphysis was induced bilaterally in 12 piglets using a cervical ligation method. Three weeks later, medial, central, and lateral 3 drill holes were made on the left femoral head using 0.062" K-wire. At 3, 6, 9, and 12 weeks following the multiple drilling, femoral heads were harvested from each three piglets. On histologic examination, percent of revascularization, percent of osteoblast surface, capital femoral epiphyseal quotient and proximal femoral growth plate height were evaluated. Untreated right femoral heads served as control. RESULTS: While percent of revascularization of left capital femoral epiphysis with multiple drilling was significantly higher than untreated control side (p<0.001), percent of osteoblast surface, capital femoral epiphyseal quotient and proximal femoral growth plate height showed no significant difference. CONCLUSION: This study indicates that multiple drilling could promote revascularization of ischemic capital femoral epiphysis, and multiple drilling does not appear to produce bony physeal bars at short-term, if using small diameter drill. However, multiple drilling alone does not seem to prevent femoral head deformity or to promote new bone formation.


Subject(s)
Animals , Female , Humans , Bone Remodeling , Disease Models, Animal , Epiphyses/blood supply , Femur Head/blood supply , Ischemia/pathology , Legg-Calve-Perthes Disease/pathology , Swine
2.
Arequipa; UNSA; abr. 1996. 53 p. ilus.
Thesis in Spanish | LILACS | ID: lil-192177

ABSTRACT

Se realizó un trabajo de investigación en el Hogar Clínica San Juan de Dios de Arequipa, sobre una población total de 18 pacientes, que presentaron la enfermedad de Legg-Calvé-Perthes y que fueron internados en dicha institución para su tratamiento especializado respectivo, entre el periodo de enero de 1984 a diciembre de 1995 (12 años). Utilizando el método descriptivo, retrospectivo; se revisaron 18 historias clínicas y radiográficas tomadas. Se obtuvo información que se anotó en fichas individuales de recolección de datos; los cuales fueron tabulados estadísticamente. Se realizó una evaluación actual clínica radiológica de la población accesible en estudio; llegando a obtener resultados que fueron analizados. Posteriormente se ha llegado a varias conclusiones, ya que el presente trabajo trata de la enfermedad en general, y no se ocupa de un sólo aspecto; asimismo se ha presentado las sugerencias respectivas.


Subject(s)
Humans , /statistics & numerical data , Legg-Calve-Perthes Disease/diagnosis , Legg-Calve-Perthes Disease/pathology , Legg-Calve-Perthes Disease/therapy , Patients , Hip
3.
Rev. bras. ortop ; 27(1/2): 11-5, jan.-fev. 1992. ilus, tab
Article in Portuguese | LILACS | ID: lil-103809

ABSTRACT

Os autores realizaram estudo radiográfico de 87 pacientes (105 quadris) portadores da doença de Legg-Calvé-Perthes. Houve maior freqüência de quadris na fase de fragmentaçäo do que nas de necrose e ossificaçäo. Em relaçäo à classificaçäo de Catterall, a maior parte se enquadrou nos grupos 3 e 4. Dos quadris classificados segundo Salter & Thompsom, a grande maioria se encontrava no grupo B. A porcentagem de quadris com sinais de risco foi crescente da fase de necrose até a de recossificaçäo. Foram considerados quadris em risco radiográfico aqueles que na abduçäo de 30- e discreta rotaçäo interna permaneceram extrusos, segundo o método descrito por Dickens & Menelaus


Subject(s)
Legg-Calve-Perthes Disease , Arthrography , Legg-Calve-Perthes Disease/classification , Legg-Calve-Perthes Disease/pathology , Hip/pathology
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