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Year : 2019  |  Volume : 53  |  Issue : 6  |  Page : 763-768

Outcomes of balloon kyphoplasty for the treatment of osteoporotic vertebral compression fracture in rheumatoid arthritis: A case–control study

Department of Orthopaedic Surgery, Hanyang University Hospital, Seoul, South Korea

Correspondence Address:
Prof. Chang-Nam Kang
Department of Orthopaedic Surgery, Hanyang University College of Medicine, 222-1 Wangsimni-Ro, Seongdong-Gu, Seoul, 04763
South Korea
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/ortho.IJOrtho_405_18

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Background: Patients with rheumatoid arthritis (RA) have higher rate of osteoporosis and vertebral fracture than individuals without RA. This study aimed to compare the outcomes of balloon kyphoplasty (KP) performed to treat osteoporotic vertebral compression fracture (OVCF) in RA patients with the outcomes in non-RA patients. Materials and Methods: The patients who received KP for OVCF and could be followed up at least 1 year were included in the study. These patients were divided into RA group and non-RA group. For clinical outcomes, the visual analog scale for back pain (VAS-BP) and Korean version of the Oswestry Disability Index (K-ODI) were assessed before and after the procedure and at the 1-year followup. For radiological outcomes, the anterior vertebral height and change in local kyphotic angle were measured. Complications were also examined. Results: Twenty three RA patients (31 vertebral bodies) and 107 non-RA patients (124 vertebral bodies) were analyzed. In two groups, postoperative VAS-BP and K-ODI decreased significantly to similar extents. There was a similar recovery of vertebral height and kyphotic angle in two groups. However, in terms of complications, adjacent segment fracture and recollapse were more frequent in the RA group than in the non-RA group. Conclusions: The use of KP to treat OVCF in RA group exhibited similar outcomes to non-RA group in terms of pain reduction, vertebral height restoration, and kyphosis correction. However, RA group had significantly higher rate of complications involving adjacent segment fracture and recollapse. Therefore, careful followup after KP in patients with RA is required to monitor for high complication rate.

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