Case 1; 45 years old, female, had numbness in the sole of the left foot. Physical examination revealed hypesthesia in the foot sole, positive Tinel's sign over the posterior tibial nerve. At operation, ganglion was found compressing the posterior tibial nerve in the tunnel.
Case 2; 74 years old, male, developed numbness in the lateral aspect of the right thigh. Entrapment neuropathy of the lateral femoral cutaneus nerve was found at operation which was probably caused by adduction of the hip joint after pseudoarthrosis in the same side.
Case 3; 73 years old, male, developed pain in the right infrapatellar area. The operation disclosed entrapment neuropathy of the infrapatellar branch of the saphenous nerve due to the scar tissue after contusion.