[Retrospective study of therapy of periprosthetic femoral supracondylar fractures after total knee arthroplasty with open reduction and less invasive stabilization system (LISS) internal fixation].
OBJECTIVE
To investigate the clinical results of therapy of periprosthetic femoral supracondylar fractures after total knee arthroplasty (TKA) with open  reduction and internal fixation (ORIF) using less invasive stabilization system (LISS).


METHODS
Eight cases of periprosthetic femoral supracondylar  fractures after TKA were treated with ORIF using distal femoral LISS in our department. They had full follow-up for 3 to 39 months. Their knee functions  were evaluated through radiological and clinical checkups and functional evaluations by HSS (The Hospital for Special Surgery) scoring system and  Lysholm Questionnaire.


RESULTS
None of the fractured patients had any infection or internal-fixation failure. The average knee motion range was 0-94°.  There was no statistic difference of the femorotibial angle between pre- and postoperation. At the end of the last follow-up, the average HSS score was  79.38 and Lysholm score 80.25. All the average scores were good and excellent.


CONCLUSIONS
ORIF with LISS is a one of the valuable treatments for  periprosthetic femoral supracondylar fractures after TKA.
Department of Trauma and Orthopaedics, Peking University People's Hospital;Peking University Traffic Medicine Center; Beijing 100044, China.
Jian
J
Xiong
Zhong-guo
ZG
Fu
Dian-ying
DY
Zhang
Bao-guo
BG
Jiang
Tian-bing
TB
Wang
Hai-lin
HL
Xu
Feng
F
Xue
Jian-hai
JH
Chen
Yu
Y
Dang
Pei-xun
PX
Zhang
Ming
M
Yang
D000368:Aged; D019645:Arthroplasty, Replacement, Knee / Q000379:methods; D005260:Female; D005264:Femoral Fractures / Q000209:etiology / Q000601:surgery*; D005593:Fracture Fixation, Internal / Q000379:methods*; D006801:Humans; D008297:Male; D008875:Middle Aged; D019060:Minimally Invasive Surgical Procedures / Q000379:methods*; D057068:Periprosthetic Fractures / Q000601:surgery*; D012189:Retrospective Studies