Treatment options for entrapment neuropathy of infrapatellar branch of saphenous nerve post knee arthroplasty: a case report

Abstract

BackgroundThe infrapatellar branch of the saphenous nerve is highly prone to form a neuroma or undergo transaction after midline incision of knee arthroplasty. The presence of neuroma and entrapment of these fibers can cause pain and numbness/tingling in the knee. The presence of these symptoms can significantly impact rehabilitation outcomes and long-term outcomes.Case presentationThe patient is a 63-year-old Caucasian female reported to an outpatient orthopedic physical therapy clinic post left knee arthroplasty. The patient reported severe pain (VAS-9/10) with knee range of motion from 5 to 64° flexion. The lower extremity functional score was 42/80 with moderate deficits in function.ConclusionThe anterior inferior knee pain with saphenous nerve entrapment can cause severe symptoms. Soft tissue mobilizations followed by neurodynamic techniques can improve neural mobility and functional outcomes (LEFS-52/80).