Abstract
Background: PVP (Percutaneous vertebroplasty) has been used to treat patients with OVCFs, however, we found that some patients did not significantly relieve back pain after surgery. The purpose of this paper is to explore the possible risk factors for residual low back pain after PVP and to Method: A retrospective study was conducted on 1120 patients hospitalized for osteoporotic vertebral compression fracture (OVCF) and treated with PVP between from July 2014 to June 2020 at our hospital. Baseline, clinical and surgical data were collected to analyze the factors associated with residual low back pain after PVP.Results: A total of 61 patients complained of residual low back pain, and the prevalence was 5.4%. Among the observed indices included, there were significant differences in preoperative thoracolumbar fascia injury (TFI) and a liquefaction signal on magnetic resonance imaging (MRI) of the affected vertebrae; the number of responsible vertebrae and the distribution of bone cement were different between the two groups (P<0.05). Multivariate analysis revealed that preoperative TFI (OR=5.378, 95% CI: 1.713-16.888, P=0.004), a liquefaction signal on MRI of the affected vertebrae (OR=6.111, 95% CI:1.898-19.673, P=0.002), the number of responsible vertebrae (OR=0.098, 95% CI: 0.039-0.249, P=0.004), and the distribution of bone cement (OR=0.253, 95% CI: 0.079-0.810, P=0.021) were risk factors for residual low back pain after PVP.Conclusion: TFI, a liquefaction signal on MRI of the affected vertebrae, the number of responsible vertebrae and the distribution pattern of bone cement could be risk factors for residual low back pain after PVP.