Cameron H U
Department of Surgery, Orthopaedic and Arthritic Hospital, University of Toronto.
Can J Surg. 1991 Feb;34(1):49-52.
Of 101 patients who underwent knee replacement with the Tricon P prosthesis and were followed up for 2 or more years, 68 had patellar resurfacing with a recessed press-fit plastic button and 43 patients had patelloplasty (shaving of the patella and removal of osteophytes). All patients were followed up for more than 2 years. Three percent of the patients who had patellar resurfacing, later had patellar fractures; 4.6% of the patients who had patelloplasty initially, subsequently required patellar replacement. There were no instances of loosening of the patellar replacement. Patellofemoral aching was experienced by 7.6% of the patients who had patellar resurfacing and by 17.6% of those who did not. Of the patients who had patellar resurfacing, 61.5% could climb stairs without aids using the replaced side as the lead leg compared with 37.2% of the patients who had patelloplasty. Overall ratings of the surgical results were similar for the two groups. The author concludes that patellar resurfacing improves the quality of the result and that there are few drawbacks to the use of an inset patellar button.
在101例行Tricon P假体膝关节置换术且随访2年或更长时间的患者中，68例采用凹陷压配塑料纽扣进行髌骨表面置换，43例患者行髌骨成形术（髌骨修整及骨赘切除）。所有患者均随访超过2年。接受髌骨表面置换的患者中有3%后来发生髌骨骨折；最初行髌骨成形术的患者中有4.6%随后需要进行髌骨置换。没有髌骨置换松动的情况。接受髌骨表面置换的患者中有7.6%出现髌股关节疼痛，未接受髌骨表面置换的患者中有17.6%出现该症状。在接受髌骨表面置换的患者中，61.5%能够以置换侧为领先腿无需辅助爬楼梯，而行髌骨成形术的患者中这一比例为37.2%。两组手术结果的总体评分相似。作者得出结论，髌骨表面置换可提高手术效果质量，使用嵌入式髌骨纽扣几乎没有缺点。
