Radiofrequency thermo-ablation of PVNS in the knee: initial results

• Published in: Skeletal radiology Vol. 44; no. 12; pp. 1777 - 1784
• Main Authors: Lalam, Radhesh K., Cribb, Gillian L., Cassar-Pullicino, Victor N., Cool, Wim P., Singh, Jaspreet, Tyrrell, Prudencia N. M., Tins, Bernhard J., Winn, Naomi
• Format: Journal Article
• Language: English
• Published: Berlin/Heidelberg Springer Berlin Heidelberg 01.12.2015; Springer; Springer Nature B.V
• Subjects: Ablation (Surgery); Adult; Catheter Ablation - methods; Female; Humans; Imaging; Knee Joint - diagnostic imaging; Knee Joint - pathology; Knee Joint - surgery; Magnetic Resonance Imaging - methods; Male; Medicine; Medicine & Public Health; Nuclear Medicine; Orthopedics; Pathology; Pilot Projects; Radiology; Scientific Article; Synovitis, Pigmented Villonodular - diagnosis; Synovitis, Pigmented Villonodular - surgery; Tomography, X-Ray Computed - methods; Treatment Outcome; Young Adult; Pigmented villonodular synovitis; Ablation techniques; Therapeutics
• ISSN: 0364-2348; 1432-2161
• DOI: 10.1007/s00256-015-2233-2

Introduction Pigmented villonodular synovitis (PVNS) is normally treated by arthroscopic or open surgical excision. We present our initial experience with radiofrequency thermo-ablation (RF ablation) of PVNS located in an inaccessible location in the knee. Materials Review of all patients with histologically proven PVNS treated with RF ablation and with at least 2-year follow-up. Results Three patients met inclusion criteria and were treated with RF ablation. Two of the patients were treated successfully by one ablation procedure. One of the three patients had a recurrence which was also treated successfully by repeat RF ablation. There were no complications and all patients returned to their previous occupations following RF ablation. Conclusion In this study we demonstrated the feasibility of performing RF ablation to treat PVNS in relatively inaccessible locations with curative intent. We have also discussed various post-ablation imaging appearances which can confound the assessment for residual/recurrent disease.