Background: The bone mineral density (BMD) o f the distal fem ur decreases by 16-36% w ith in one year after total knee arthroplasty (TKA) because o f the femoral component's stress-shielding effect. The aim o f this prospective study was to determ ine the quantitative change from the baseline BMD in the distal fem ur 1 year after patellofemoral arthroplasty using dual-energy X-ray absorptiomet...

Patellofemoral arthroplasty is an infrequently used surgical technique because of its controversial results. In an attempt to improve the results, a design with a mobile-bearing poliethylene patellar component has been developed. We describe a clinical case with an unusual complication: the dislocation of poliethylene from the metal backing; and accordingly, we carried out a literature review o...

Complications involving the knee extensor mechanism and patellofemoral joint occur in 1% to 12% of patients following total knee arthroplasty and have major negative effects on patient outcomes and satisfaction. The surgeon must be aware of intraoperative, postoperative, and patient-related factors that can increase the rate of these problems. This review focuses on six of the most commonly enc...

Background: Patellofemoral anatomy has not been well characterized. Applying deep learning to automatically measure knee can provide a better understanding of anatomy, which be key factor in improving outcomes. Methods: 483 total patients with CT imaging (April 2017–May 2022) from 6 centers were selected cohort scheduled for arthroplasty and healthy anatomy. A 7 patellofemoral landmarks annotat...

Background: The bone mineral density (BMD) o f the distal fem ur decreases by 16-36% w ith in one year after total knee arthroplasty (TKA) because o f the femoral component's stress-shielding effect. The aim o f this prospective study was to determ ine the quantitative change from the baseline BMD in the distal fem ur 1 year after patellofemoral arthroplasty using dual-energy X-ray absorptiomet...

Background: The bone mineral density (BMD) o f the distal fem ur decreases by 16-36% w ith in one year after total knee arthroplasty (TKA) because o f the femoral component's stress-shielding effect. The aim o f this prospective study was to determ ine the quantitative change from the baseline BMD in the distal fem ur 1 year after patellofemoral arthroplasty using dual-energy X-ray absorptiomet...

Background: The bone mineral density (BMD) o f the distal fem ur decreases by 16-36% w ith in one year after total knee arthroplasty (TKA) because o f the femoral component's stress-shielding effect. The aim o f this prospective study was to determ ine the quantitative change from the baseline BMD in the distal fem ur 1 year after patellofemoral arthroplasty using dual-energy X-ray absorptiomet...

Background: The bone mineral density (BMD) o f the distal fem ur decreases by 16-36% w ith in one year after total knee arthroplasty (TKA) because o f the femoral component's stress-shielding effect. The aim o f this prospective study was to determ ine the quantitative change from the baseline BMD in the distal fem ur 1 year after patellofemoral arthroplasty using dual-energy X-ray absorptiomet...

Partial knee arthroplasty (PKA), either medial or lateral unicompartmental knee artroplasty (UKA) or patellofemoral arthroplasty (PFA) are a good option in suitable patients and have the advantages of reduced operative trauma, preservation of both cruciate ligaments and bone stock, and restoration of normal kinematics within the knee joint. However, questions remain concerning long-term surviva...