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Percutaneous Radiofrequency Ablation of Appendicular Skeleton Chondroblastoma-an Experience from a Tertiary Care
Suyash S Kulkarni1, Nitin Sudhakar Shetty1, Kunal B Gala1
1Interventional Radiology, Department of Radio-Diagnosis, Tata Memorial Hospital, Tata Memorial Centre, Dr Ernest Borges Road, Parel, Mumbai, Maharashtra 400012, India; Homi Bhabha National Institute, Anushaktinagar, Mumbai, Maharashtra 400094, India.
Purpose:
To evaluate safety and long-term efficacy of radiofrequency (RF) ablation in treatment of chondroblastoma.
Materials And Methods:
This retrospective analysis comprised 27 consecutive patients with histopathologically proven chondroblastoma treated by RF ablation. The tumors were located in the proximal humerus (n = 6), proximal tibia (n = 8), proximal femur (n = 6), distal femur (n = 5), acromion process (n = 1), and lunate (n = 1). In 19 patients (70.3%), the tumor was in the weight-bearing area of the bone. Clinical response was assessed by comparing pain scores and functional assessment by Musculoskeletal Tumor Society (MSTS) score before and after ablation. Patients were followed for a minimum of 1 year to rule out complications and recurrence.
Results:
Technical success rate was 100%. Mean pain score before the procedure was 7.34 (range, 7-9); all patients experienced a reduction in pain, with 25 (92.6%) patients reporting complete pain relief at 6 weeks. Mean MSTS score before the procedure was 15.4, whereas mean MSTS score at 6 weeks after the procedure was 28.6, suggesting significant functional improvement (P < .0001). Two patients developed osteonecrosis and collapse of the treated bone. There were no recurrences.
Conclusions:
Percutaneous RF ablation is a safe and effective option for treating chondroblastoma of the appendicular skeleton.