nt with isolated patellofemoral arthritis, PFA represents an option for improved function with faster recovery times, bone preservation, maintenance of ligamentous proprioception, and the ability to delay total knee arthroplasty (TKA). The most common reason for revising PFA to a TKA is progression of tibiofemoral arthritis. In general, conversion of PFA to TKA leads to successful outcomes with minimal bone loss and the ability to use primary TKA implants and instrumentation. PFA seems to be a cost-effective alternative to TKA in appropriately selected patients with 5-, 10-PFA survivorships of 91.7% and 83.3%, respectively, and an annual revision rate of 2.18%; however, more long-term clinical studies are needed to determine how new designs and technologies affect patient outcomes and implant performance….

intercalary allografts. Methods: A retrospective chart review was performed on 51 patients with intercalary allograft reconstruction in the lower extremity. Fixation methods compared were intramedullary fixation with nails (IMN) and extramedullary fixation with plates (EMP). Complications compared were nonunion, fracture, and wound complications. The alpha was set at 0.05 for statistical analysis. Results: Nonunion incidence at all allograft-to-native bone junction sites was 21% (IMN) and 25% (EMP) (P = 0.8). Fracture incidence was 24% (IMN) and 32% (EMP) (P = 0.75). Median fracture-free allograft survival was 7.9 years (IMN) and 3.2 years (EMP) (P = 0.04). Infection was seen in 18% (IMN) and 12% (EMP) (P = 0.7). The overall need for revision surgery was 59% (IMN) and 71% (EMP) (P = 0.53). Allograft survival at the final follow-up was 82% (IMN) and 65% (EMP) (P = 0.33). When the EMP group was subdivided into single plate (SP) and multiple plate (MP) groups and compared with the IMN gro

years, new developments have been made in areas of molecular genetics, noninvasive treatments, surgical techniques, and outcome measures in several commonly seen congenital hand differences. Applying these advances in knowledge and management of congenital hand differences will enable surgeons to achieve the best outcomes possible for these children….

didates before and after implementation of a preoperative optimization protocol. Methods: A retrospective time-trend study using data from an integrated healthcare system’s total joint replacement registry was done. The study sample consisted of patients aged 18 years or older who underwent primary elective total hip arthroplasty (THA) and total knee arthroplasty (TKA) for osteoarthritis between 2009 and 2019. Patients were divided into two cohorts: procedures performed from 2009 to 2013 (“preoptimization protocol”) and those from 2015 to 2019 (“postoptimization protocol”); 2014 was excluded because an evidence-based preoperative patient optimization protocol was progressively implemented throughout the year. Patient characteristics, optimization factors, and 90-day outcomes (including emergency department [ED] visits, readmission, all-cause revision, deep infection, venous thromboembolism, and mortality) were compared between the two cohorts using the Pearson chi-square test or Wilcox