title: Minimal invasive surgery for hip replacement: a new technique using the NILNAV hip system.
abstract: BACKGROUND
  Minimal invasive surgical techniques are used for cruciate ligament reconstructions, unicondylar knee replacements and, more recently, for fixation of fractures. This is a report of the first instrumented technique for hip replacement using a 5-cm incision without the need for a navigation system or X-rays.
  
  
  METHODS
  It uses the C.F.P stem (LINK) but is universal. It includes jigs for the osteotomy of the neck, a right-angled reamer and spacers (lollipops) to orientate the acetabular cup to the femoral stem. A case series of 14 patients using this new hip replacement technique (called NILNAV Hip System) is reported.
  
  
  RESULTS
  The procedure was successfully performed on all seven patients, with reduced postoperative pain and stiffness, and increased quality of life and functional status. All patients were discharged on postoperative Days 1 and 2 with minimal pain and blood loss.
  
  
  CONCLUSIONS
  This new minimal access total hip replacement technique was successfully performed on seven patients. There are several advantages of using this system compared with the more traditional techniques. Such a technique should help reduce morbidity and mortality rates for those patients undergoing a total hip replacement.
authors.affiliation: Department of Orthopaedic Surgery, Nepean Hospital, Penrith, New South Wales, Australia. esherry@telstra.com
authors.forename: Eugene
authors.initials: E
authors.lastname: Sherry
authors.forename: Michael
authors.initials: M
authors.lastname: Egan
authors.forename: Patrick H
authors.initials: PH
authors.lastname: Warnke
authors.forename: Antony
authors.initials: A
authors.lastname: Henderson
authors.forename: Guy D
authors.initials: GD
authors.lastname: Eslick
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D019644:Arthroplasty, Replacement, Hip / Q000295:instrumentation* / Q000379:methods*; D001315:Australia; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D019060:Minimally Invasive Surgical Procedures / Q000295:instrumentation* / Q000379:methods*; D015207:Osteoarthritis, Hip / Q000000981:diagnostic imaging / Q000473:pathology / Q000601:surgery*; D011859:Radiography