title: [Three-tunnels core decompression with implantation of bone marrow stromal cells (bMSCs) and decalcified bone matrix (DBM) for the treatment of early femoral head necrosis].
abstract: OBJECTIVE
  To analyse retrospectively 3-tunnels core decompression with implantation of bone marrow stromal cells(bMSCs) and decalcified bone matrix (DBM) for treatment of femoral head necrosis in early stages, and to study its therapeutic results and indications.
  
  
  METHODS
  According to the University of Pennsyvania system of classification and staging,to treat the patients with 3-tunnels core decompression with implantation of bone marrow stromal cells (bMSCs) and decalcified bone matrix (DBM) for treatment of early femoral head necrosis. Among the total 87 patients (103 hips), the male was 71 (86 hips) and the female 16 (17 hips) with the average age of 47 years old. The average course of disease was 1.3 year. The effect was evaluated by the clinical symptoms, the Harris' scores and the manifestations of radiology before and after operation.
  
  
  RESULTS
  All the patients were followed up more than 2 years (average 26 months). The average Harris' scores increased from preoperation 47.3 to postoperation 74.0. The average rate of excellent and good results was 75.7%. The rate of excellent and good was 88% (22/25) in type I, 78.7% (37/47) in type II and 61.3% (19/31) in type III. No severe complications were observed.
  
  
  CONCLUSIONS
  Three-tunnels core decompression with implantation of bMSCs and DBM not only removal the focus of disease, but also use DBM the induction of bone and autologous hone marrow stem cells to differentiate the functions of the femoral head can be resumed loading structure, eliminate pain,improve joint function. It is an effective method for early femoral head necrosis.
authors.affiliation: Department of Orthopaedics and Traumatology, the Hospital of Zhejiang Province of TCM, Hangzhou 310006, Zhejiang, China. jiweifeng@zjtcm.net
authors.forename: Wei-feng
authors.initials: WF
authors.lastname: Ji
authors.forename: Wei-hang
authors.initials: WH
authors.lastname: Ding
authors.forename: Zheng-chuan
authors.initials: ZC
authors.lastname: Ma
authors.forename: Ju
authors.initials: J
authors.lastname: Li
authors.forename: Pei-jian
authors.initials: PJ
authors.lastname: Tong
mesh_terms: D000328:Adult; D000368:Aged; D016026:Bone Marrow Transplantation; D001857:Bone Matrix / Q000637:transplantation*; D019299:Decompression, Surgical; D005260:Female; D005271:Femur Head Necrosis / Q000601:surgery*; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D045164:Mesenchymal Stem Cell Transplantation; D008875:Middle Aged; D012189:Retrospective Studies; D014182:Transplantation, Autologous