title: Femoroacetabular Impingement: A Retrospective Case Study With 8-Year Follow-Up.
abstract: OBJECTIVE
  The purpose of this case report is to describe a patient with femoroacetabular impingement (FAI) who was initially misdiagnosed and treated for a hip flexor strain.
  
  
  METHODS
  A 36-year-old male patient presented with insidious onset of progressive anterior right hip and groin pain of 7 years' duration. He was diagnosed with a right-sided hip flexor muscle strain and was discharged from care 1 month later. The patient then returned to the office 8 years later for treatment of unrelated lower back pain. This time, the doctor of chiropractic learned that the patient was misdiagnosed years before. The patient's past radiographs in fact revealed FAI, including severe hip joint osteoarthritis on the right and mild osteoarthritis on the left. As a result, the patient had undergone right hip joint replacement surgery. Recent radiographs also revealed FAI in the contralateral hip.
  
  
  RESULTS
  After investigating for FAI, the doctor of chiropractic was able to identify through symptomatology, history, physical examination, and radiographs the presence of FAI in the patient's left hip. An "active surveillance" approach is being taken.
  
  
  CONCLUSIONS
  This case illustrates the importance of an increasing awareness of FAI, as doctors of chiropractic are frequently the primary contact for patients with this condition.
authors.affiliation: Private Practice, West Seneca, NY.
authors.forename: Julia R
authors.initials: JR
authors.lastname: Stobert
authors.affiliation: Private Practice, Parkway Back Clinic, Cambridge, Ontario, Canada.
authors.forename: Peter C
authors.initials: PC
authors.lastname: Emary
authors.affiliation: Professor, Chiropractic Department, D'Youville College, Buffalo, NY.
authors.forename: John A
authors.initials: JA
authors.lastname: Taylor
keywords: Athletic injuries; Chiropractic; Femoroacetabular impingement; Injuries, hip; Osteoarthritis, hip