Abstract
To assess the clinical and radiographic effectiveness of unilateral and bilateral percutaneous kyphoplasty (PKP) in the treatment of osteoporotic vertebral compression fractures (OVCF) associated with scoliosis, 52 patients with OVCF associated with scoliosis who underwent PKP were retrospectively analysed. The patients were divided into the unilateral PKP group (n=26) and the bilateral PKP group (n=26). The operation time, bone cement injection volume and frequency of intraoperative fluoroscopy were recorded and compared between the groups. Additionally, visual analogue scale (VAS) and Oswestry disability index (ODI) scores, as well as postoperative complications, including bone cement leakage and adjacent vertebral fractures, were also assessed. The operation time, bone cement injection volume and intraoperative fluoroscopy frequency were significantly lower in the unilateral compared with the bilateral group (P<0.001). The VAS score, ODI score, average vertebral body height and kyphotic angle (KA) were improved after surgery in each group with no difference in these clinical parameters between the two groups both before and after surgery. Furthermore, the proportion of cases with bone cement leakage in the unilateral group was significantly lower compared with that in the bilateral group (P<0.05). During the follow-up, there were three cases (11.5%) in the unilateral group and two cases (7.7%) in the bilateral group who suffered adjacent vertebral fractures, but there was no statistically significant difference between the two groups (P>0.05). For treating patients with OVCF accompanied by scoliosis, both unilateral and bilateral PKP could effectively relieve the acute back pain and correct the KA. However, unilateral PKP presents more advantages, such as a short operation duration and reduced intraoperative fluoroscopy frequency and bone cement leakage.
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