Abstract
A patient who sustained stress fracture of the femoral neck following unicondylar knee arthroplasty (UKA) is reported. A 76-year-old female patient, who had been treated as osteoarthritis of the right knee for 15 years, underwent UKA in March 1995. Two months after UKA, she complained of right hip pain without a history of significant trauma. Because initial radiographic findings are minimal, bone scintigraphy and MRI are useful methods for diagnosis. We consider that osteoporosis, a biomechanical change and an increase in the patient's activity level after joint reconstruction were the possible cause of the stress fracture.
