title: [Memorial metal ball for the treatment of avascular necrosis of femoral head].
abstract: OBJECTIVE
  To introduce a new method for the treatment of avascular necrosis of the femoral head.
  
  
  METHODS
  A technique has been developed what the memorial metal ball, and where the graft of the wing of the ilium is harvested with the deep circumflex iliac vascular pedicle and implanted into the avascular area of the femoral head. This procedure has been performed in 28 hips in 22 patients.
  
  
  RESULTS
  Preoperatively, 8 hips were of Ficat Arlet Stage II and twenty stage III. Postoperatively, eighteen patients were pain free, 3 had mild pain, and 1 had moderate pain. The radiographic appearance improved in 2 cases. No major complications occurred.
  
  
  CONCLUSIONS
  It is one of the better alternatives that can prevent the necrotic femoral head from progressing to collapse and promote revascularization and new bone formation by direct mechanical support. The technique is suitable for the treatment of avascular necrosis of femoral head of stage I to III.
authors.affiliation: Department of Orthopaedics, General Hospital of People's Liberation Army, Beijing 100853.
authors.forename: Y
authors.initials: Y
authors.lastname: Wang
authors.forename: D
authors.initials: D
authors.lastname: Zhao
authors.forename: J
authors.initials: J
authors.lastname: Wang
authors.forename: S
authors.initials: S
authors.lastname: Lu
authors.forename: S
authors.initials: S
authors.lastname: Zhu
mesh_terms: D000328:Adult; D000497:Alloys / Q000737:chemistry*; D005260:Female; D005271:Femur Head Necrosis / Q000473:pathology / Q000601:surgery*; D006801:Humans; D008297:Male; D008875:Middle Aged; D009532:Nickel / Q000737:chemistry; D013514:Surgical Procedures, Operative / Q000379:methods*; D014025:Titanium / Q000737:chemistry; D016896:Treatment Outcome
chemical_list: D000497:Alloys; D009532:Nickel; D014025:Titanium