title: [Case control study on postoperative rehabilitation of patellar fracture by modified seated position of different knee flexion angles].
abstract: OBJECTIVE
  To explore the clinical results of postoperative rehabilitation of patellar fracture by modified seated position of different knee flexion angles, thereby enrich the therapeutic tool of orthopaedics of traditional Chinese and western medicine and provide the evidences for refinement and modernization of traditional Chinese exercise therapy.
  
  
  METHODS
  From January 2009 to June 2012,90 patients with patellar transverse fractures were treated with open reduction and internal fixation by tension band wire and rehabilitation exercises. There were 52 males and 38 females, aged from 21 to 77 years old with an average of 50.0 years old. Three methods of rehabilitation exercises were adopted in the patients after fractures clinical union. There were 21 males and 14 females in group A (trained by modified seated position of knee flexion about 60 degree), 21 males and 14 females in group B (trained by modified seated position of knee flexion about 30 degree), 10 males and 10 females in group C (trained by walk). The rehabilitation-training time was 1 month. Fracture healing informations were observed by X-ray films. The Böstman patellar fracture function scores were compared before and after training among three groups.
  
  
  RESULTS
  Postoperative follow-up time was 6 months. All fractures obtained bone union and the average healing time was 3 months (ranged,2 to 4 months). Böstman patellar fracture function scores in group A, B, C before training were 18.89 ± 2.19, 18.74 ± 2.03, 18.85 ± 2.92, respectively; there was no significant differences in among three groups (P > 0.05). After training, Böstman patellar fracture function scores in group A, B, C were 29.40 ± 1.14, 26.09 ± 3.86, 25.70 ± 4.09, respectively; group A was highest than other two groups; and there was no significant differences between group A and group B.
  
  
  CONCLUSIONS
  Modified seated position of knee flexion about 60 degree was practical and effective training in postoperative rehabilitation for the treatment of patellar fracture, it can obtain the better clinical results than other training method such as walk or modified seated position of knee flexion about 30 degree.
authors.forename: Yong
authors.initials: Y
authors.lastname: Zhao
authors.forename: Xian-Dong
authors.initials: XD
authors.lastname: Liu
authors.forename: Xiao-Bing
authors.initials: XB
authors.lastname: Wang
authors.forename: Qiang
authors.initials: Q
authors.lastname: Xu
authors.forename: Jin-Wen
authors.initials: JW
authors.lastname: Zheng
authors.forename: Cheng-Jie
authors.initials: CJ
authors.lastname: Tang
authors.forename: Xing-Yu
authors.initials: XY
authors.lastname: Chen
mesh_terms: D000328:Adult; D000368:Aged; D016022:Case-Control Studies; D005260:Female; D005593:Fracture Fixation, Internal / Q000379:methods*; D017102:Fracture Healing; D050723:Fractures, Bone / Q000534:rehabilitation / Q000601:surgery*; D006801:Humans; D008297:Male; D008875:Middle Aged; D010329:Patella / Q000293:injuries* / Q000601:surgery