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Chinese Journal of Bone and Joint Injury. 2015, (12)

Mid-term effectiveness of Oxford mobile plateau in unicompartment arthroplasty for medlal knee osteoarthritisChinese Full Text

QING Zhong;YE Jiu-min;WANG Zhi-yuan;MA Jian-bing;YAO Jian-feng;Department of Bone and Joint Surgery, Xi’an Jiaotong University Medical College Affiliated Honghui Hospital;

Abstract: Objective To observe mid-term effectiveness of Oxford mobile plateau used in unicompartment arthroplasty for medial knee osteoarthritis. Methods From January 2010 to December 2014, 58 patients（65 knees） with medial knee osteoarthritis were treated with Oxford mobile plate unicompartment arthroplasty. Results The average operation time of this group was 71（52-86）minutes, blood loss volume during operation was（97.1 ±13.3）ml. All patients did not receive blood transfusion. All patients were followed up in average 25.2 months（range of 12-46 months） and all the incisions were primary healing without infection in prophase. The femor-tibial angles of these patients were improved from varus 4.8 °preoperatively to valgus 5.3° postoperatively and the range of motion were raised from（85.2±9.3）° to（132.0±11.4）° and the HSS scores were increased from（21.6±4.9） to（82.7±8.1）,HSS functional scores were increased from（47.2±6.9） to（81.5±10.4） at the last time follow up. One patient who underwent double knees synchronization with unicompartment arthroplasty received left knee revision because of its tardive infection so that inserts were loosening 1 year later. There were no inserts loosening, collapse,transposition progressive degeneration in lateral compartment and patellofemoral joint. Conclusion Oxford unicompartment system has the advantages of short-time operation, little trauma, rapid recovery for severe medial knee osteoarthritis. The midterm effectiveness is satisfactory, but its long-term effectiveness needs further follow-up.
Keywords：

Knee osteoarthritis; Unicompartment arthroplasty; Mobile plateau;

  • Series：

    (E) Medicine ＆ Public Health

  • Subject：

    Surgery

  • Classification Code：

    R687.4

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