title: [The selection of responsible veterbal body in PKP (percutaneous kyphosis plasty) for aged osteoporotic spinal multiple fracture].
abstract: OBJECTIVE
  Through an analysis of the effect of PKP (percutaneous kyphosis plasty) for aged osteoporotic spinal multiple fracture to demonstrate the importance of the selection of responsible veterbal body.
  
  
  METHODS
  Twenty-four consecutive procedures were performed in 19 aged patients with osteoporotic spinal compression fractures from May 2004 to October 2007. The 24 responsible veterbal bodies were confirmed by the manifestations of MRI, X-ray, physical examination before the procedures. Established work path through hibateral vertebral arch, put into saccule, poured in bone cement under X-ray perspective. To observe the condition about symptom improving, fractured reduction and complications after operation.
  
  
  RESULTS
  The operations were successfully completed and the pain released obviously at 2 days after operation. The patients can walk next day after operation and no complication found. The mean loss percent of the anterior and middle vertebal heights were respectively (34.22 +/- 11.51)% and (26.53 +/- 11.61)% before operation,postoperative were respectively (13.21 +/- 11.43)% and (15.10 +/- 6.50)%. The mean kyphosis corrected from (24.50 +/- 3.10) degrees to (8.70 +/- 4.30) degrees; the VAS scores decreased from 83.00 +/- 6.00 to 27.00 +/- 5.00. There was significant difference between before and after operation (P < 0.01).
  
  
  CONCLUSIONS
  PKP for aged osteoporotic spinal multiple fractures by selecting true veterbal body has satisfactory clinical efficacy. We should emphasize the importance of the selectivity of responsible veterbal body in the procedures. It needs three essential elements: (1) Obviously spinous process tenderness and rap pain. (2) X-rays showed veterbal body compression fracture; MR showed low signal in veterbal body by T1WI, and high signal by T2WI, STIR. (3) The manifestation of radiology can be explained clearly by clinical symptomes arid signs.
authors.affiliation: Department of Orthopaedics, the Hospital of TCM of Zhejiang Province, Hangzhou 310006, Zhejiang, China.
authors.forename: Wei-feng
authors.initials: WF
authors.lastname: Ji
authors.forename: Zhong-sen
authors.initials: ZS
authors.lastname: Hua
authors.forename: Ju
authors.initials: J
authors.lastname: Li
authors.forename: Zhen-Chuan
authors.initials: ZC
authors.lastname: Ma
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010024:Osteoporosis / Q000150:complications*; D020127:Recovery of Function; D016103:Spinal Fractures / Q000150:complications* / Q000000981:diagnostic imaging / Q000503:physiopathology / Q000601:surgery*; D013131:Spine / Q000000981:diagnostic imaging / Q000503:physiopathology / Q000601:surgery*; D014057:Tomography, X-Ray Computed; D054854:Vertebroplasty / Q000379:methods*