Chinese Journal of Tissue Engineering Research ›› 2014, Vol. 18 ›› Issue (13): 2018-2023.doi: 10.3969/j.issn.2095-4344.2014.13.009

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Total knee arthroplasty with Gemini MKII rotating-platform prosthesis

  

  1. 1Department of Orthopedics, Changshu First People’s Hospital, Changshu 215500, Jiangsu Province, China; 2Department of Orthopedics, First Affiliated Hospital, Soochow University, Suzhou 215006, Jiangsu Province, China
  • Received:2014-01-03 Online:2014-03-26 Published:2014-03-26
  • About author:Wang Qiang, Master, Physician, Department of Orthopedics, Changshu First People’s Hospital, Changshu 215500, Jiangsu Province, China

Abstract:

BACKGROUND: Total knee arthroplasty mainly used fixed platform, but more and more movable platform was selected year by year in the clinic. Rotary platform theoretically can apparently improve the curative effects, but it has not been verified in the clinic.
OBJECTIVE: To summarize the design characteristics and clinical results of Gemini MKII (Link, Germany) rotary platform.
METHODS: From January 2004 to January 2009, 108 patients (119 knees) including 31 males and 77 females were treated with total knee arthroplasty by using Gemini MKII system. There were 97 unilateral cases and
11 bilateral cases at the first stage of replacement. Preoperative diagnosis: 1 case of hemophilic arthritis, 1 case of venereal Charcot’s disease, 8 cases of post-traumatic arthritis, 11 cases of rheumatoid arthritis, and 87 cases of degenerative osteoarthritis. The prosthesis was fixed with bone cement. None received patellar replacement.
RESULTS AND CONCLUSION: None experienced infection, femoral condyle fracture or nerve and vascular damage. Except bilateral replacement, the average operation time of unilateral replacement was (56±13) minutes. Average postoperative hemoglobin decreased (25±5) g/L. After replacement, hemoglobin maintained over
100 g/L in 83 patients (86%), without blood transfusion. Knee joint score and function score recovered to (92.0±4.7) points and (90.3±6.8) points at half years after replacement, and became (94.4±3.2) points and (91.6±5.9) points during final follow-up, which was significantly improved as compared with that pre-replacement (P < 0.01). No revision surgery should be done for lining prolapse or spin out, osteolysis and prosthesis loosening. These results indicated that the early and midterm results of Gemini MKII rotating-platform prosthesis were satisfactory, but the long-term results remain to be confirmed.


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


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Key words: arthroplasty, replacement, knee, prosthesis design, treatment outcome, postoperative complications

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