Beyond the obvious: A case presentation on the misdiagnosis of posterior femoral cutaneous nerve entrapment as semitendinosus muscle tear

Abstract

To underscore the importance of evaluating the entrapment of the posterior femoral cutaneous nerve (PFCN) in patients exhibiting symptoms in the posterior thigh region. A 42‐year‐old male dentist, initially diagnosed with a semitendinosus muscle tear and persistent pain and tingling in the posterior thigh, sought treatment at our outpatient clinic. Despite unsuccessful physiotherapy, a comprehensive evaluation revealed an unusual entrapment of the PFCN between the sacrotuberous ligament and the semitendinosus muscle stump. The patient was subjected to a series of specialized therapeutic interventions, including soft tissue release, kinesiology taping, and lifestyle modifications. The patient's symptoms, including pain and tingling, were completely resolved, enabling him to sit on a stool for extended periods without discomfort. This case presentation emphasizes the need for physical therapists to consider the possibility of PFCN entrapment in patients experiencing pain and tingling in the posterior thigh. These symptoms can be easily mistaken for conditions such as sciatica or a hamstring muscle tear.