Percutaneous Kyphoplasty in Patients with Severe Osteoporotic Vertebral Compression Fracture with and without Intravertebral Cleft: A Retrospective Comparative Study.

PKP can give satisfactory outcomes for the treatment of sOVCF with or without IVC. However, the NIVC group showed better clinical outcomes and could maintain spinal sagittal balance better than the IVC group during long-term follow-up.