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1.
Journal of the Korean Knee Society ; : 63-68, 2007.
Artigo em Coreano | WPRIM | ID: wpr-730842

RESUMO

PURPOSE: To analyze clinical results of the cases diagnosed and treated as acute patella dislocation. MATERIALS AND METHODS: Thirteen cases diagnosed as acute patella dislocation between March 2000 and May 2006, were enrolled for this study. The mean follow-up period was 28 months. Preoperatively plain radiographs and MRIs were taken, and operative treatment was performed in 11 cases with osteochondral fragments or patella malalignment after reduction. Clinical results were assessed by the range of motion and the Lysholm score. For radiologic assessment, patella tilt by lateral patellofemoral angle and patella subluxation by congruence angle were observed. RESULTS: In all cases(100%), bone contusion was observed on MRIs. Osteochodral injury was found in six cases (46.1%). The postoperative mean range of motion was from 0 degree to 130 degrees, and the mean Lysholm score was 86 points. The congruence angle was recovered to -10.9 degrees from 1.7 degrees in 12 cases except one case. No case presented lateral patella tilt when the lateral patellofemoral angle was measured. CONCLUSION: Bone contusion on MRIs was helpful in diagnosing acute traumatic patella dislocation. Operative treatment is considered necessary for the cases with remained patellofemoral malalignment or osteochondral fragments after reduction.


Assuntos
Contusões , Diagnóstico , Luxações Articulares , Seguimentos , Imageamento por Ressonância Magnética , Patela , Amplitude de Movimento Articular
2.
The Journal of the Korean Orthopaedic Association ; : 586-592, 2007.
Artigo em Coreano | WPRIM | ID: wpr-644950

RESUMO

PURPOSE: This study examined the effect of a varus positioned femoral stem after cementless proximal fitting total hip arthroplasty. MATERIALS AND METHODS: A total of 144 hips in 136 patients who underwent cementless total hip arthroplasty, were followed-up. Twenty-one varus positioned hips were compared with 123 neutral positioned hips. The clinical results were analyzed according to the level of thigh pain and the Harris Hip score. The radiological outcome was assessed according to osteolysis, loosening and stem failure. RESULTS: In the varus positioned hips, thigh pain was present in 1 hip, and the average Harris Hip Score was 96 points. None of the implants showed radiological evidence of loosening or impending failure. Localized osteolysis was identified in 1 hip, non-progressive radiolucencies in 2 hips, and cortical hypertrophy in 1 hip. In the neutral positioned hips, thigh pain was present in 6 hips, and the average Harris Hip Score was 97 points. Localized osteolysis was identified in 8 hips, non-progressive radiolucencies in 7 hips, cortical hypertrophy in 9 hips. CONCLUSION: Patients with varus alignment of the stem did not present poorer clinical outcomes than those with neutral alignment of the stem.


Assuntos
Humanos , Artroplastia de Quadril , Quadril , Hipertrofia , Osteólise , Coxa da Perna
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