Abstract

Objective: A Baker’s cyst, also referred to as a popliteal cyst, is a posterior knee cyst that commonly accompanies various intra-articular knee pathologies, such as osteoarthritis and meniscal tears. Baker’s cysts may continue to cause posterior knee pain even after surgical treatment of the underlying intra-articular condition, and these symptoms are often associated with cyst size. Case Report: The patient was a Korean woman in her 60s who was diagnosed with a posterior cyst in the left knee in November 2021. She underwent multiple cyst excisions at an orthopedic clinic; however, recurrence persisted, and she discontinued hospital treatment. Subsequently, she received Ortho-Cellular Nutrition Therapy (OCNT), incorporating anthocyanins, omega fatty acids, and pumpkin extract. Following the intervention, visual reduction in cyst size was observed. Conclusion: Although improvement of the posterior knee cyst was observed following OCNT in this patient, the intervention was customized to a single individual and therefore cannot be generalized to all cases of Baker’s cyst. Nevertheless, given that the cyst recurred despite repeated surgical excisions, the observed reduction in cyst size following OCNT suggests potential clinical relevance, warranting the reporting of this case.