Chinese Journal of Tissue Engineering Research ›› 2015, Vol. 19 ›› Issue (35): 5598-5603.doi: 10.3969/j.issn.2095-4344.2015.35.005

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Feasibility of posterior composite release of the knee joint after total knee arthroplasty 

Zhang Feng1, Li Zhan-qi1, He Xi-jing2   

  1. 1Department of Orthopedics, Xi’an Fourth Hospital, Xi’an 710004, Shaanxi Province, China; 2Department of Orthopedics, Second Affiliated Hospital of Xi’an Jiaotong University, Xi’an 710004, Shaanxi Province, China
  • Received:2015-06-07 Online:2015-08-27 Published:2015-08-27
  • Contact: Li Zhan-qi, Associate chief physician, Department of Orthopedics, Xi’an Fourth Hospital, Xi’an 710004, Shaanxi Province, China
  • About author:Zhang Feng, Studying for doctorate, Attending physician, Department of Orthopedics, Xi’an Fourth Hospital, Xi’an 710004, Shaanxi Province, China

Abstract:

BACKGROUND: Knee osteoarthritis can be treated by total knee arthroplasty. To improve therapeutic effect and promote postoperative recovery, we should take effective measures to improve the joint space and postoperative range of motion.
OBJECTIVE: To explore the effectiveness and feasibility of posterior composite release of the knee joint after total knee arthroplasty.
METHODS: 118 knee osteoarthritis patients undergoing unilateral total knee arthroplasty in two hospitals from December 2009 to December 2013 were selected, and were randomly divided into control group (59 cases) and observation group (59 cases). After osteotomy during operation, the control group underwent bone removal of conventional condylar hyperplasia. Observation group underwent posterior composite release of the knee joint. Postoperative extension, flexion gap and the time required for postoperative active flexion 90° and 120° were 
observed in the two groups. Hospital for Special Surgery Knee Score and maximum flexion angle were recorded in 3 months of follow up, and compared between the two groups. 
RESULTS AND CONCLUSION: Through the statistics and comparison, no significant difference in flexion gap was found between the two groups (P > 0.05). However, significant differences in extension gap, the time for active flexion 90° and 120°and the maximum flexion angle were detectable between the two groups, and above indexes were better in the observation group than in the control group (P < 0.05). Hospital for Special Surgery Knee Score of each index and total score were significantly higher in the observation group than in the control group (P < 0.05). These results suggest that rear joint composite release after total knee arthroplasty has certain validity and feasibility, can effectively improve knee extensor gap and the postoperative range of motion during replacement, but does not impact flexion gap during replacement.

中国组织工程研究杂志出版内容重点:人工关节;骨植入物;脊柱骨折;内固定;数字化骨科;组织工程

Key words: Arthroplasty, Replacement, Knee, Osteoarthritis, Knee, Follow-Up Studies

CLC Number: