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Concerns persist that the Optetrak Logic posterior-stabilized (PS) total knee arthroplasty (TKA) femoral component might correlate with early failures due to aseptic loosening. The primary aim of this study was to examine if the use of the Optetrak Logic PS femoral component is associated with early (<5 years) and more extensive aseptic loosening compared with other PS femoral components. This is a single-institution retrieval analysis and revision registry study (based on prospectively collected data) of 27 failed primary PS TKA patients with loose femoral components that underwent revision TKAs between 2016 and 2019. Patients were stratified by components type: Group A (n = 16) received the Optetrak Logic PS femoral component, while Group B (n = 11) received other PS femoral components. Burnishing (macroscopic polishing of the component's backside) was observed and graded as a marker for relative motion at the cement-implant interface. No significant differences were found between the two groups regarding the baseline demographic, radiographic, and clinical characteristics. Mean length of implantation for Group A (3.8 ± 2.9 years) was significantly shorter (p < 0.001) than that of Group B (12.0 ± 6.7 years). A significant difference (p = 0.009) was found in presence of backside femoral burnishing between Group A (15 of 16 patients; 93.8%) and group B (5 of 11 patients; 45.6%). Furthermore, we found a significant difference (p < 0.001) in the severity of burnishing between Group A (13 of 16 patients with severe degree of burnishing; 81.3%) and Group B (1 of 11 patients with severe degree of burnishing; 9.1%). In contrast to Group B, a distinctive macroscopic pattern found in Logic retrieved femoral components (Group A) was the total absence of cement in the backside surface. The use of the Optetrak Logic PS TKA femoral component was associated with early aseptic loosening and increased presence and severity of backside burnishing with early cement-implant interface debonding compared with other commercially available types of PS TKA femoral components. The earlier failure rate with this implant is of concern.

Objectives: (1) Analyze the safety of using Propel mesh implant in revision sinus surgery. (2) Analyze the efficacy of maintaining a medial position of the middle turbinate without synechiae in the postoperative period. Methods: This was a retrospective study between July 2012 and February 2014 in 16 patients with chronic rhinosinusitis undergoing revision sinus surgery and who underwent placement of a Propel mometasone implant into the ethmoid bowl at end of the procedure. Placement of the Propel was unilateral in some or bilateral in others. Surgery was conducted at outpatient surgical centers. Safety measures included incidence of bleeding, orbital migration of mesh, and chronic scabbing. Efficacy measures included incidence of synechiae and maintenance of medial position of the middle turbinate. Results: A total of 26 Propel implants were placed. The incidence of complications from the implant was zero and the efficacy of maintaining a medialized middle turbinate without synechiae was 100%. Conclusions: In selected patients with chronic rhinosinusitis undergoing revision sinus surgery, the placement of a Propel mometasone implant into the ethmoid bowl is safe and effective at maintaining a medialized position of the middle turbinate without synechiae formation.