According to an article published in AAOS Now, mobile-bearing implants for unicompartmental knee arthroplasty might be appealing, their design may not to offer clinical advantages over fixed bearing designs in the long term.
In a presentation debate between Craig Della Valle, MD, and Richard Scott, MD, during the Hip and Knee Surgeons 2011 Specialty Day program, Dr. Della Valle mentioned there were two benefits from the mobile-bearing design: a decreased rate of wear and decreased stresses at the interfaces between the cemented implant and bone.
He also mentioned the failure rate associated with dislocation of the mobile-bearing implants due to the early learning curve for the physicians. When the surgeon is experienced, he concedes the procedure can work very well.
Dr. Scott makes the case for mobile designs as an alternative to osteotomy or total knee arthroplasty in some patients with osteoarthritis. He blamed poor outcomes on inappropriate patient selection, prosthetic design and surgical technique. He recommended drawing starting the procedure with a conservative initial tibial resection and drawing a conservative total knee replacement resection line during the pre-planning stages.
Read the report on unicompartmental knee arthroplasty.
Related Articles to Knee Arthroplasty:
Applying Tranexamic Acid After Knee Arthroplasty Could Reduce Postoperative Blood Loss
Rush Medical Center Study: New Protocol Can Reduce Infections in Total Hip Arthroplasty Patients
OrthoAlign Receives Market Clearance for KneeAlign
In a presentation debate between Craig Della Valle, MD, and Richard Scott, MD, during the Hip and Knee Surgeons 2011 Specialty Day program, Dr. Della Valle mentioned there were two benefits from the mobile-bearing design: a decreased rate of wear and decreased stresses at the interfaces between the cemented implant and bone.
He also mentioned the failure rate associated with dislocation of the mobile-bearing implants due to the early learning curve for the physicians. When the surgeon is experienced, he concedes the procedure can work very well.
Dr. Scott makes the case for mobile designs as an alternative to osteotomy or total knee arthroplasty in some patients with osteoarthritis. He blamed poor outcomes on inappropriate patient selection, prosthetic design and surgical technique. He recommended drawing starting the procedure with a conservative initial tibial resection and drawing a conservative total knee replacement resection line during the pre-planning stages.
Read the report on unicompartmental knee arthroplasty.
Related Articles to Knee Arthroplasty:
Applying Tranexamic Acid After Knee Arthroplasty Could Reduce Postoperative Blood Loss
Rush Medical Center Study: New Protocol Can Reduce Infections in Total Hip Arthroplasty Patients
OrthoAlign Receives Market Clearance for KneeAlign