Stern and Insall report 9–12 year outcomes of 289 posterior stabilized (PS) total knee arthroplasties with all-polyethylene tibial components performed at HSS, asking whether the PCL-substituting cam-spine design caused accelerated bone-cement interface failure or inferior survivorship compared with the total condylar prosthesis.
When counseling patients on PS versus PCL-retaining TKA, this study supports that PCL sacrifice with a cam-spine mechanism does not compromise long-term fixation and yields superior range of motion; the Knee Society functional score stratification also reminds you that a great knee score in a medically infirm patient (Category C) will still translate to a modest functional score — set expectations accordingly.
Stern and Insall report 9–12 year outcomes of 289 posterior stabilized (PS) total knee arthroplasties with all-polyethylene tibial components performed at HSS, asking whether the PCL-substituting cam-spine design caused accelerated bone-cement interface failure or inferior survivorship compared with the total condylar prosthesis.
When counseling patients on PS versus PCL-retaining TKA, this study supports that PCL sacrifice with a cam-spine mechanism does not compromise long-term fixation and yields superior range of motion; the Knee Society functional score stratification also reminds you that a great knee score in a medically infirm patient (Category C) will still translate to a modest functional score — set expectations accordingly.