Accessibility Tools

Standard Total Knee Replacement (without Robotic Assist)

Airport security measures continue to be updated with the incorporation of the new body scanners and automatic target recognition software. The purpose of this study was analyze the incidence of: (1) triggering the security alarm; (2) extra security searches; (3) perceived inconvenience; and (4) presence of other surgical hardware in those who underwent total knee arthroplasty (TKA) and passed through airport security. A questionnaire was given to 125 consecutive patients with a TKA. Those who passed through airport security after January 2014 were considered for inclusion. A questionnaire was administered that addressed the number of encounters with airport security, metal detector activation, additional screening procedures, and perceived inconvenience. Out of the 125 patients, 53 met inclusion criteria. Out of the 53 patients, 20 (38%) reported that their prosthesis triggered a metal detector. Out of the 20 patients, 8 (40%) who reported triggering of metal detectors also reported the presence of surgical hardware elsewhere in the body. Eighteen of the 53 patients (34%) believed having a TKA was inconvenient for airplane travel. Compared with the historical cohort, alarms were triggered in 70 of 97 patients (p = 0.0001) and 50 of 97 reported inconvenience when traveling (n = 50 of 97 patients; p = 0.04). The incidences of those who underwent TKA triggering alarms and perceiving inconvenience when passing through airport security have decreased from previously published studies. This is most likely due to the recent updates and modifications to screening. As these security measures are modified and implant designs continue to evolve, this is an area of investigation that should continue.

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The absence or dysfunction of the knee extensor mechanism accelerates degenerative joint disease and complicates knee arthroplasty. Various treatment strategies have been suggested to improve outcomes in total knee arthroplasties after patellectomy (semi- or constrained components, autograft, allograft, prosthetic reconstruction), but the optimal management of this condition is not known. The purpose of this report is to review the relevant basic biology and biomechanics of the patella and the extensor mechanism, and to review the current literature on the management of complete patellectomy during total knee arthroplasty. Tissue engineered heart valves, BMMSCs, oscillatory shear stress, nicotine, F-actin filaments, cell differentiation, endothelial cells.

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New Jersey Orthopaedic Institute (NJOI)
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