Kümmell's Disease Treated with Percutaneous Vertebroplasty: Minimum 1 Year Follow-Up.

Objective: To evaluate the radiographic and clinical outcomes of percutaneous vertebroplasty (PVP) in patients with Kümmell's disease.

Methods: A retrospective review was conducted for 19 vertebrae in 18 patients, between January 2012 and June 2016. A visual analogue scale (VAS) score was used to determine each patient's subjective level of pain (0=no pain to 10=severe pain) preoperative, immediately postoperative and at the last follow-up (at least 12 months after PVP).Radiographic parameters such as regional and global kyphotic angle, lumbar lordosis (LL), thoracolumbar junction (TLJ) angle, vertebral height, cement leakage, refracture, and adjacent level fracture were evaluated by the clinician preoperative, immediate postoperative and at the last follow-up.

Results: The mean VAS score significantly decreased after PVP and the decrease was maintained through to the final follow-up ( p <0.05). However, the regional and global kyphotic angle, LL, and TLJ angle were not improved. Cement leakage was observed in 5 cases (26.3%): however, there were no cases of cement leakage into the spinal canal. No neurological deterioration was observed, even among patients with cement leakage. Adjacent level fractures were detected in 3 cases (15.8%).

Conclusion: PVP can be considered as an effective treatment option for pain relief and maintenance of sagittal balance in patients with Kümmell's disease.