Perioperative complications of the MOBILITY total ankle system: comparison with the HINTEGRA total ankle system.
BACKGROUND
The perioperative complications associated with MOBILITY total ankle replacement arthroplasty have not yet been reported.


METHODS
During the research period from May 2008 to June 2009, a total of 30 consecutive cases of ankle arthritis were treated with surgery. An investigation into the perioperative complications for these cases was conducted. Comparison with the previously reported perioperative complications for the HINTEGRA model was made. The 30 cases were divided into two groups wherein the first group underwent surgery during the early half of the study period and the second group underwent surgery during the later half. The incidences of complications between the two groups were then compared.


RESULTS
There was no difference in the incidence of perioperative complications between the use of the HINTEGRA model and the MOBILITY model for total ankle replacement arthroplasty, although medial malleolar fracture was statistically increased with the use of MOBILITY.


CONCLUSIONS
The study implies that a new learning curve may affect the outcome of surgery when a newly designed implant is used for total ankle replacement arthroplasty and that long tibial procedure time and long distraction time played a critical role in the incidence of malleolar fracture.
Lee
Kyung Tai
KT
Foot and Ankle Service, Department of Orthopedic Surgery, Eulji Hospital, Eulji University, College of Medicine, Seoul, Republic of Korea.
Lee
Young Koo
YK
Young
Ki Won
KW
Kim
Hak Jun
HJ
Park
Shin Yi
SY
Kim
Jin Su
JS
Kim
Ki Chun
KC
D000368:Aged; D000843:Ankle Joint / Q000601:surgery*; D019643:Arthroplasty, Replacement / Q000009:adverse effects* / Q000295:instrumentation*; D002983:Clinical Competence; D005260:Female; D006801:Humans; D007431:Intraoperative Complications; D007595:Joint Prosthesis / Q000009:adverse effects*; D008297:Male; D008875:Middle Aged; D011183:Postoperative Complications