title: [Swanson double-stem silicone implant arthroplasty in the treatment of Freiberg disease].
abstract: OBJECTIVE
  To observe the short-term results of Swanson double-stem silicone implant arthroplasty in the treatment of late stage Freiberg disease.
  
  
  METHODS
  From July 2006 to December 2007, Swanson double-stem silicone implant arthroplasty was performed on 13 patients, 11 male (1 foot) and 12 females (17 feet), suffering from late stage Freiberg diseases. All the cases were the second metatarsophalangeal joints. According to the Smillie classification, 11 feet present with grade 4 osteonecrosis, 7 feet with grade 5. The AOFAS scoring system was used for clinical assessment. All the patients were followed up for an average of 11.3 months (3 to 17 months).
  
  
  RESULTS
  The mean preoperative and postoperative AOFAS scores were (50.06 +/- 9.59) and (77.50 +/- 4.99), respectively (P<0.05). The complaint of pain with joint motion was decreased in all patients. The postoperative passive range of motion of joints improved significantly.
  
  
  CONCLUSIONS
  Swanson double-stem silicone implant arthroplasty yields satisfied short-term results in late stage Freiberg disease, which is effective to improve range of motion and relieve pain of joint.
authors: Department of Orthopaedic Surgery, Wangjing Hospital of China Academy of Chinese Medicine Sciences, Beijing 100102, China. wjm5734@263.net
authors: Jian-min
authors: JM
authors: Wen
authors: Wei-dong
authors: WD
authors: Sun
authors: Zhi-cheng
authors: ZC
authors: Sang
authors: Hai-wei
authors: HW
authors: Hu
authors: Yong-sheng
authors: YS
authors: Sun
authors: Ke-wei
authors: KW
authors: Jiang
authors: Zhao
authors: Z
authors: Liang
authors: Ting
authors: T
authors: Cheng
authors: Xin-xiao
authors: XX
authors: Lin
authors: Xia-bo
authors: XB
authors: Wu
mesh_terms: D000368:Aged; D019643:Arthroplasty, Replacement / Q000379:methods*; D005260:Female; D006801:Humans; D007595:Joint Prosthesis; D008297:Male; D008683:Metatarsophalangeal Joint / Q000601:surgery*; D008875:Middle Aged; D011183:Postoperative Complications / Q000209:etiology / Q000517:prevention & control; D012189:Retrospective Studies; D012828:Silicones
chemical_list: D012828:Silicones