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Lamina Spreader Technique Improves Debridement Of Loose Bone And Cement In Total Knee Arthroplasty, Sinan E. Ozgur, Ali Oliashirazi, Grant S. Buchanan, Franklin D. Shuler

Marshall Journal of Medicine

Abstract

Loose bone and cement can promote polyethylene wear that may lead to failure in total knee arthroplasty. The authors propose a technique to enhance the debridement of loose bodies by distracting the cemented components with a lamina spreader following standard debridement with pulsatile lavage. Cement and bone/soft tissue debris was recovered from 51 consecutive primary total knee arthroplasty patients. This technique facilitated the removal of hidden debris in 80% of patients (41/51). On average, 2.6 fragments measuring 158 mm³ were removed per patient. The authors advocate that distraction with a lamina spreader be used to reduce potential sources …

Technique To Improve Cement Penetration In Total Knee Arthroplasty, Richard Boe Jr, Ali Oliashirazi

Marshall Journal of Medicine

In total knee arthroplasty, infection has always been cited as being the number one cause of failure. However, more recent studies have shown aseptic loosening as the top reason for failure now. Proper cement technique is an important factor in reducing the occurrence of aseptic loosening. Clean and dried bone are important in achieving rigid cement fixation. Subchondral cysts may be hidden below the cut bone surface and may interfere with cement interdigitation. During a recent total knee arthroplasty case, a simple technique was developed for identifying and clearing out these cysts. By only using the suction tip, the gentle …