Percutaneous Vertebroplasty With Cement-Augmented Hollow Screw Fixation for Kümmell Disease: A Case Report Highlighting Diagnostic Challenges and Surgical Outcomes.

This case report presents a 79-year-old male with Kümmell disease (KD) who experienced progressive lower back pain following a minor fall. Imaging confirmed L1 vertebral collapse with osteonecrosis and posterior ligamentous complex (PLC) injury (thoracolumbar injury classification and severity score (TLICS) score=5). The patient underwent successful percutaneous vertebroplasty with cement-augmented hollow screw fixation under local anesthesia, resulting in immediate pain relief and restored spinal stability. This case highlights the importance of early surgical intervention in KD patients with spinal instability. Accurate diagnosis requires a detailed medical history and awareness of this rare condition. Treatment should involve careful observation of conservative methods' efficacy, and surgical planning should be considered after vertebral fracture deterioration to avoid adverse effects.