Journal of Foot and Ankle Surgery (Asia Pacific)

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VOLUME 10 , ISSUE 4 ( October-December, 2023 ) > List of Articles

ORIGINAL RESEARCH

Cryoablation of Morton's Neuroma: An Early Clinical and Radiological Outcome Study

Kimberly Lam, Anjani Singh, Siva Sirikonda, Yajur Narang, Jehan Ghany, Lyndon W Mason, Vasileios Lampridis

Keywords : Cryoablation, Forefoot, Morton neuroma

Citation Information : Lam K, Singh A, Sirikonda S, Narang Y, Ghany J, Mason LW, Lampridis V. Cryoablation of Morton's Neuroma: An Early Clinical and Radiological Outcome Study. J Foot Ankle Surg Asia-Pacific 2023; 10 (4):188-192.

DOI: 10.5005/jp-journals-10040-1319

License: CC BY-NC 4.0

Published Online: 25-10-2023

Copyright Statement:  Copyright © 2023; The Author(s).


Abstract

Introduction: Morton's neuroma (MN) is a common compressive neuropathy of the interdigital nerves. Nonoperative management is recommended initially, and many modalities have been described. Cryoablation (CA) has shown promising results; however, there are limited published studies in the literature. The purpose of this study was to assess the safety and efficacy of ultrasonography (US)-guided CA in patients with MN. Methods: A retrospective analysis was completed for 20 patients (24 MN) between June 2021 and September 2022. All patients had refractory MN symptoms from previous US-guided steroid and local anesthesia injections. CA was performed under continuous US monitoring as a single outpatient procedure with one cycle for 2 minutes. Telephone follow-up with a 0–10 numerical rating scale was performed at 6 weeks and 3 months post-CA. Results: The mean size of MN treated was 12.3 mm. Technical success was 100%. The mean preprocedure pain score was 8, which reduced to 0 at 6 weeks and 3 months follow-up in the treated MN. There were two cases of fibrosis in the webspace (12.5%) seen on magnetic resonance imaging (MRI), and 1 residual neuroma was observed (6%). There were no complications observed. Conclusion: In this series, US-guided CA performed by musculoskeletal radiologists was deemed a safe and effective treatment for MN. Clinical advantages of the procedure are good patient tolerance, single outpatient procedure, high patient satisfaction and reduced risk of scarring or residual neuroma. Further controlled prospective studies would be beneficial.


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