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Comparative study of balloon kyphoplasty with unilateral versus bilateral approach in osteoporotic vertebral compression fractures

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This study analyses the radiological and clinical results according to the two techniques of unilateral and bilateral balloon kyphoplasty in osteoporotic vertebral compression fractures. Fifty-two patients with osteoporotic vertebral compression fractures occurring at the thoracolumbar junction were enrolled in this study. All patients were classified into two groups; group I was treated with a unilateral approach and group II with a bilateral approach. The Cobb angle was measured each time to evaluate the kyphotic angle during the pre- and post-operative periods and at last follow-up, and a 10-point visual analog scale for pain was recorded at the same time. We found that the bilateral approach had a greater advantage in the reduction of kyphosis and the loss of reduction was less than the unilateral approach for the treatment of osteoporotic vertebral compression fractures.


Cette étude analyse les résultats cliniques et radiologiques de deux techniques de kyphoplastie après fracture vertébrale ostéoporotique avec tassement. 52 patients ont été inclus dans l’étude. Tous les patients ont été classés en deux groupes. Le groupe 1 traité par abord unilatéral et le groupe 2 par un abord bilatéral. L’angle de Cobb a permis d’évaluer l’angle de cyphose pré et post-opératoire et au dernier recul. De même, une analyse de la douleur en 10 points a été utilisée sur la même période. En conclusion, nous pouvons indiquer que la kyphoplastie bilatérale permet une meilleure réduction vertébrale et diminue le tassement secondaire que l’on observe dans les abords unilatéraux.

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Correspondence to Kook Jin Chung.

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Chung, H.J., Chung, K.J., Yoon, H.S. et al. Comparative study of balloon kyphoplasty with unilateral versus bilateral approach in osteoporotic vertebral compression fractures. International Orthopaedics (SICO 32, 817–820 (2008).

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