RESUMEN
We had replaced 159 hips in 130 patients with cementless porous-coated AML porsthesis at Kwang Ju Christian Hospital between April 1987 and Feb. 1992. Among them, 100 cases(80 patients) could be analyzed clinically and radiologically with an average follow-up of 38.5 months(range 10 months to 74 months). The purpose of this study was to evaluate the relationships of initial fit, follow up stability and clinical results. The results were as follows. 1. The average postoperative Harris hip score was 90 points(preop. 42) at the follow-up of 1 year or more, the pain score 41 points(preop. 15). 2. When the surgical fit of stem was achieved properly, fixation by bone ingrowth could be expected. Simultaneously adequate fit of acetabular cup provided stable fixation. 3. The incidence of thigh pain was high in patients with an unstable implant of stem and the hip pain was more common in group of a definitely unstable cup. 4. Stress shielding was seen in 44 cases(44%). Of the 44 cases, 38 cases(86%) revealed in bone ingrowth. In conclusion, this study showed good clinical result of THR using AML prosthesis at the average follow-up of 38.5 months and it seemed to be influenced by initial fit significantly. But long-term follow-up is needed for accurate clinical and radiological evaluation.
Asunto(s)
Humanos , Acetábulo , Artroplastia de Reemplazo de Cadera , Estudios de Seguimiento , Cadera , Incidencia , Prótesis e Implantes , MusloRESUMEN
We have analyzed clinical results of forty-five patients who had spondylolisthesis which were operated using transpedicular screw fixation devices (CD or Steffee VSP system) between June, 1987 and March, 1992 at the department of Orthopedic Surgery of Kwang-ju Christian Hospital. Simultaneously we compared the postoperative results between two groups. The results were as follows: 1. The ratio of man and woman was 1: 2.2 and mean age was 44.3 years (44.8 years in degenerative type and 42.5 years in isthmic type). 2. The most common level was L4 on L5 and two-third of all cases were isthmic type. 3. The clinical results were satisfactory in 91% (41 cases) according to anthors modified evaluation system. There was no significant difference between degenerative and isthmic type. 4. The mean % of slip was improved from 23.3% preoperatively to 7.4% postoperatively and the mean slip angle was improved from 3.5 degrees preoperatively to-5.4 degrees postoperatively. 5. The devices which were used for operation were C-D instrument in 21 cases and Steffee VSP system in 23 cases. There was no difference in radiographic examinaton and clinical result between two groups. 6. The anterior fusion was done for 9 active young patients. The results were significantly satisfactory. 7. We consider the transpedicular fixation system is the most recommandable method of treatment for spondylolisthesis in providing excellent reduction of slippage and maintenance of reduction with rigid fixation device.
Asunto(s)
Femenino , Humanos , Métodos , Ortopedia , EspondilolistesisRESUMEN
No abstract available.
RESUMEN
No abstract available.