Chinese Journal of Tissue Engineering Research ›› 2011, Vol. 15 ›› Issue (39): 7266-7270.doi: 10.3969/j.issn.1673-8225.2011.39.012

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Early-stage effect of Nexgen-LPS-Flex prosthesis on severe knee degenerative joint disease in 126 cases

Hu Ru-yin, Tian Xiao-bin, Sun Li, Tian Jia-liang   

  1. Department of Orthopedics, Guizhou Provincial People’s Hospital, Guiyang  550002, Guizhou Province, China
  • Received:2011-06-09 Revised:2011-07-03 Online:2011-09-24 Published:2011-09-24
  • Contact: Tian Xiao-bin, Chief physician, Master’s supervisor, Department of Orthopedics, Guizhou Provincial People’s Hospital, Guiyang 550002, Guizhou Province, China txb6@vip.163.com
  • About author:Hu Ru-yin, Associate chief physician, Department of Orthopedics, Guizhou Provincial People’s Hospital, Guiyang 550002, Guizhou Province, China huruyin@yahoo.cn

Abstract:

BACKGROUND: In the past, patients cannot had high flexion after total knee arthropalsty as the aspect of prosthesis and rehabilitation.
OBJECTIVE: To investigate the preliminary clinical outcome of NexGen LPS-Flex system in severe knee degenerative joint diseases.
METHODS: 126 patients (173 knees) with severe knee degenerative joint disease underwent primary total knee arthroplasty with NexGen LPS-Flex prostheses. Clinical results were evaluated preoperatively and postoperatively.
RESULTS AND CONCLUSION: The average operation time was (78.2±13.5) minutes. Femorotibial angle was evaginated 5°-7°. The range of motion was (78.4±10.6)° and (112.8±18.6)° prior to and after replacement. The HSS score was (32.4±12.0) points before replacement and (87.9±10.9) points at discharge (P < 0.01). Four cases (4 knees) had a wound healing disorder, 3 patients had deep venous thrombosis and cured after intervention therapy, and 1 patient presented with extension disorder. No osteolysis, loosening and severe friction happened. The results indicated that there were no complications at early stage of Nexgen-LPS-Flex prosthesis for severe knee degenerative joint diseases.

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