Abstract
Approximately 20% of patients have persistent unexplained pain after total knee arthroplasty (TKA). Currently available treatments are unsatisfactory. The present report describes four patients in whom transcatheter arterial embolization had a remarkable effect on pain after TKA. Abnormal neovessels were identified in all patients. For 48 h, one patient experienced remarkable postprocedural pain at the inner side of the knee that was subsided by level 1 analgesics and another patient development of a spontaneous skin ulceration resolving within 8 days. The mean Knee injury and Osteoarthritis Outcome Score pain subtotal had increased from 39 to 82 one month after treatment. Endovascular occlusion of neovascularization, decreasing chronic inflammation and the growth of unmyelinated sensory nerves may be treatment options for persistent unexplained pain following TKA.
Level of Evidence IV, Case report.
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Chau, Y., Roux, C., Breuil, V. et al. Endovascular Occlusion of Neovascularization as a Treatment for Persistent Pain After Total Knee Arthroplasty. Cardiovasc Intervent Radiol 43, 787–790 (2020). https://doi.org/10.1007/s00270-020-02449-x
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DOI: https://doi.org/10.1007/s00270-020-02449-x