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Percutaneous kyphoplasty (PKP) has been used in Kümmell disease treatment for years. The objective of the current study was to evaluate the efficacy and safety of PKP in the treatment of patients with Kümmell disease and to explore the association between cement injection volume and pain relief. A total of 50 patients were enrolled in the present study and follow-up was 2 years. Efficacy was evaluated using the Visual Analog Scale (VAS), the Oswestry Disability Index (ODI) and the kyphotic angle (Cobb's angle). VAS and ODI were determined at the initial evaluation (prior to surgery), at 3 days, 3 months, and 1 and 2 years post surgery. Cobb's angle was measured prior to and 3 months, 1 year and 2 years following surgery. PKP safety was assessed by evaluating complications, including cement leakage and spinal cord compression. In the follow-ups, VAS significantly decreased from 7.00±0.78 pre-PKP to 3.14±0.67 at 2 years post-PKP (P&lt;0.05). ODI significantly decreased from 73.88±8.60 prior to surgery to 22.84±8.85 at 1 year following surgery (P&lt;0.05) and did not significantly change at the following 2-year measurement (26.44±8.63). The Cobb's angle, measured at 17.73±2.43° preoperatively, significantly decreased to 8.32±2.21° at 3 months following surgery (P&lt;0.05). On subsequent follow-ups at 1 and 2 years, the Cobb's angle increased to 9.55±2.82 and 10.27±3.22°, respectively. A total of 8 patients exhibited signs of cement leakage during the PKP procedure. No patients experienced severe neurological deficits or complications. Spearman analysis demonstrated a positive correlation between cement injection volume and pain relief. The current study indicated that PKP was a safe and effective treatment for patients with Kümmell disease and that there was a positive correlation between cement injection volume and pain relief. The current study may be used a reference in cement dosing for the treatment of PKP.

Percutaneous kyphoplasty treatment evaluation for patients with K�mmell disease based on a two‑year follow‑up