Patient Reported Outcomes After Conversion vs. Primary Total Hip Arthroplasty: A Propensity Matched Analysis.

Background: Conversion total hip arthroplasty (cTHA) is increasingly utilized as a salvage procedure for complications associated with fracture fixation around the hip and acetabulum and for failed hip preservation surgery. While primary THA (pTHA) has a high success rate, little is known about outcomes following conversion THA. The purpose of this study is to evaluate patient reported outcomes (PROs) and complication rates following conversion THA compared to primary THA.

Expedited surgery in geriatric hip fracture patients taking direct oral anticoagulants is not associated with increased short-term complications or mortality rates.

Objectives: The purpose of this study was to evaluate potential differences in time to surgery, bleeding risk, wound complications, length of stay, transfusion rate, and 30-day mortality between patients anticoagulated with direct oral anticoagulants (DOACs) and those not anticoagulated at the time of evaluation for an acute hip fracture.

Design: Retrospective chart review Level III Study.

Setting: One university-based hospital in Rochester, NY.

Rethinking strategies for blood transfusion in hip fracture patients.

Objectives: Most patients can tolerate a hemoglobin (Hgb) > 8 g per deciliter. In some cases, however, transfusion will delay physical therapy and hospital discharge. This study aims to review Hgb and transfusion data for a large volume of recent hip fracture patients in order to identify new opportunities for decreasing the length of hospital stay.

Immediate Improvement in Physical Function After Symptomatic Syndesmotic Screw Removal.

Objective: To investigate the immediate impact of removing symptomatic syndesmotic screws on PROMIS outcomes and ankle range of motion (ROM) in patients who had previously undergone ankle fracture open reduction and internal fixation (ORIF) and syndesmotic fixation and later experienced functional limitations.

Design: Prospective cohort study.

Setting: Level 1-trauma center.

Simultaneous Bilateral Extensor Mechanism Disruptions: More Than Double the Trouble?

Simultaneous bilateral extensor mechanism disruption (BEMD) is a rare condition, for which the relationship between comorbid conditions, complications, and clinical outcomes has not been well defined. We hypothesized that patients with BEMD would have more comorbidities, more repair failures, and worse clinical outcomes compared with patients with unilateral extensor mechanism disruption (UEMD). We performed a retrospective review of all adult patients seen at our institution for either a quadriceps or patellar tendon rupture between 2012 and 2017.

Experimental and numerical study of underwater beam propagation in a Rayleigh-Bénard turbulence tank.

The propagation of a laser beam through Rayleigh-Bénard (RB) turbulence is investigated experimentally and by way of numerical simulation. For the experimental part, a focused laser beam transversed a 5  m×0.5  m×0.

Radiographic Risk Factors For Interprosthetic Femur Fractures.

Purpose: Total hip arthroplasty (THA) and total knee arthroplasty (TKA) are among the most common orthopaedic procedures performed in the United States annually. As the number of patients undergoing these procedures increases so too does the incidence of periprosthetic femur fractures. A number of these periprosthetic fractures occur between two ipsilateral implants, so-called interprosthetic fractures.

Expedited Operative Care of Hip Fractures Results in Significantly Lower Cost of Treatment.

Background: There are an estimated 150,000 hip fractures per year in the United States, with estimated costs of care between $10.3 billion and $15.2 billion.

Finding a job in an overcrowded market: getting what you want.

As the number of fellowship-trained orthopaedic trauma surgeons entering the workforce increases, so does the competition for available practice opportunities. The process of finding employment has seemingly become more involved as the relative availability of positions has declined over recent years. To manage this new environment, new graduates need to become much more proactive in the process of seeking and obtaining orthopaedic trauma positions.

Estimating detection and identification probabilities in maritime target acquisition.

This work describes several approaches to the estimation of target detection and identification probabilities as a function of target range. A Bayesian approach to estimation is adopted, whereby the posterior probability distributions associated with these probabilities are analytically derived. The parameter posteriors are then used to develop credible intervals quantifying the degree of uncertainty in the parameter estimates.

Cartilage-on-cartilage versus metal-on-cartilage impact characteristics and responses.

A common in vitro model for studying acute mechanical damage in cartilage is to impact an isolated osteochondral or cartilage specimen with a metallic impactor. The mechanics of a cartilage-on-cartilage (COC) impact, as encountered in vivo, are likely different than those of a metal-on-cartilage (MOC) impact. The hypothesis of this study was that impacted in vitro COC and MOC specimens would differ in their impact behavior, mechanical properties, chondrocyte viability, cell metabolism, and histologic structural damage.

Correlation of orthopaedic trauma practice opportunities and number of fellows trained: are trauma-specific practice opportunities scarce?

: Recent trauma fellows are concerned with difficulty finding a job. Our hypothesis was that the increased number of trauma fellows has led to a decrease in the number of jobs available and a subsequent decrease in advertised trauma positions. To determine the number of advertised positions, a review and tabulation of the advertised trauma specific orthopaedic surgery practice opportunities for the past 9 years (2003-2011) was completed.

Concomitant infection and local metal reaction in patients undergoing revision of metal on metal total hip arthroplasty.

Total hip arthroplasty (THA) with conventional polyethylene bearings is traditionally the standard operative treatment for endstage arthritis of the hip. This design has excellent survivorship in most populations, with a low occurrence of infection and other associated complications. Due to concern over increased wear in younger, more active populations, other bearing surfaces have been evaluated, particularly metal-on-metal with wear rates theorized to be lower than conventional THA.

Measuring contact area, force, and pressure for bioengineering applications: using Fuji Film and TekScan systems.

The goal of this study was to compare the TekScan I-Scan Pressure Measurement System with two methods of analysis involving the Fuji Film Prescale Pressure Measuring System in estimating area, force and pressure. Fuji Film and TekScan sensors were alternately placed between a cylindrical peg and a finely ground steel base plate, and compressed with known forces. All Fuji stains were digitally scanned and analyzed.