Vertebroplasty--high viscosity cement versus low viscosity cement

Chronic pain from vertebral fractures remains a major clinical challenge. Traditional treatments often fail to provide lasting relief. Prior research has shown that vertebroplasty, a minimally invasive procedure, can stabilize fractured vertebrae and reduce pain. However, the choice of cement viscosity has not been fully resolved. It was already known that low viscosity cement spreads more easily but may leak. That uncertainty drove this study to compare low and high viscosity cement outcomes. No prior work had resolved the long-term effectiveness of high viscosity cement. This gap motivated the investigation of cement viscosity effects on pain reduction and complications. The study aimed to clarify whether high viscosity cement reduces leakage risks. The goal was to determine if cement viscosity impacts postoperative pain and complications. This research builds on prior work but introduces new comparative data.

The study aimed to compare pain reduction and complication rates between low and high viscosity cement in vertebroplasty. The specific problem was to determine if high viscosity cement reduces leakage and improves outcomes. The motivation came from clinical observations of cement leakage with low viscosity cement. The researchers proposed that high viscosity cement might offer better stability. The study focused on patients with unresponsive vertebral fractures. The goal was to assess pain scores and complication frequencies. The researchers tested the hypothesis that high viscosity cement reduces leakage. The study sought to provide evidence for safer vertebroplasty practices.

The study used a unilateral transpendicular approach for cement application. Patients were divided into two groups: low viscosity cement and high viscosity cement. Pain scores were measured preoperatively and at 24 hours and three months. Cement leakage was documented during surgery and in follow-up. The researchers used the Wilcoxon paired test to compare pain scores. They tracked complications like infections and paraparesis. The study included 75 patients with low viscosity cement and 12 with high viscosity. The approach was consistent across all procedures to ensure comparability.

Low viscosity cement showed a preoperative VAS score of 8.32, dropping to 2.23 after surgery (p < 0.00001). Pain remained stable at three months. High viscosity cement had a preoperative VAS of 7.99, decreasing to 2.5 after surgery (p < 0.00001). Cement leakage occurred in 32 of 109 vertebrae with low viscosity cement. Only one of 14 vertebrae had leakage with high viscosity cement (8%). Low viscosity cement had one paraparesis and two infections. High viscosity cement had no major complications. The Wilcoxon test confirmed significant pain reduction for both groups. The results suggest high viscosity cement reduces leakage risks.

The authors propose that vertebroplasty is a safe and effective treatment for vertebral fractures. They suggest that high viscosity cement may reduce complications related to leakage. The study indicates that pain reduction is significant and stable with both cements. The authors note that high viscosity cement has fewer leakage incidents. They suggest that this method could improve patient outcomes. The findings do not claim that high viscosity cement is essential but suggest it is beneficial. The authors propose that cement viscosity influences complication rates. They conclude that vertebroplasty remains a viable option for unresponsive fractures.