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Results of Total Knee Arthroplasty with NexGen LPS-flex Implant Using Navigation System (Brain Lab): Results with a 5-year Follow-up.

AbstractPURPOSE:
To evaluate the clinical and radiological results of patients that underwent total knee arthroplasty (TKA) with a NexGen LPS-Flex implant using a Navigation system (Brain Lab).
MATERIALS AND METHODS:
Between January 2001 and December 2005, 55 knees in 46 patients which used the NexGen LPS-Flex implant with a Navigation system (Brain Lab) for primary TKA were clinically and radiologically evaluated after a minimum follow-up of 5 years. Evaluation included preoperative and postoperative range of motion (ROM), Knee Society Score (KSS), tibio-femoral angle and postoperative complications.
RESULTS:
Knee ROM was increased from 118.9° preoperatively to 126.9° at the last follow up. In addition, the preoperative flexion contracture improved from 6.5° to 1.8° postoperatively. The mean KSS and functional score were improved from 59.8 and 51.2 to postoperative scores of 86.4 and 85.2 respectively. The rate of appearance of radiolucency in X-ray was 21.8%. One case of superficial skin infection and one case of aseptic loosening were noted as complications but, did not require a revision surgery.
CONCLUSIONS:
TKA with NexGen LPS-Flex implant using Navigation system (Brain Lab) showed satisfactory improvement in pain and function, but more long term follow up will be needed to complete verification.
AuthorsChul Hyung Kang, Kyung Jae Lee, Ki Cheor Bae, Chul Hyun Cho, Si Wook Lee, Hong Kwan Shin, Young Kook Lee, Ji Suk Bae
JournalKnee surgery & related research (Knee Surg Relat Res) Vol. 24 Issue 4 Pg. 208-13 (Dec 2012) ISSN: 2234-0726 [Print] England
PMID23269958 (Publication Type: Journal Article)

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