[Swanson double-stem silicone implant arthroplasty in the treatment of Freiberg disease].
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.
Wen
Jian-min
JM
Department of Orthopaedic Surgery, Wangjing Hospital of China Academy of Chinese Medicine Sciences, Beijing 100102, China. wjm5734@263.net
Sun
Wei-dong
WD
Sang
Zhi-cheng
ZC
Hu
Hai-wei
HW
Sun
Yong-sheng
YS
Jiang
Ke-wei
KW
Liang
Zhao
Z
Cheng
Ting
T
Lin
Xin-xiao
XX
Wu
Xia-bo
XB
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
D012828:Silicones