A UWB-Ego-Motion Particle Filter for Indoor Pose Estimation of a Ground Robot Using a Moving Horizon Hypothesis.

Ultra-wideband (UWB) has gained increasing interest for providing real-time positioning to robots in GPS-denied environments. For a robot to act on this information, it also requires its heading. This is, however, not provided by UWB.

Malpractice lawsuits in orthopedic trauma surgery: a meta-analysis of the literature.

Introduction: The objectives for this study were to identify whether diagnostic or procedural errors more commonly resulted in lawsuit, as well as to elucidate how specific variables affected mean indemnity.

Methods: Systematic review of English-language articles in the PubMed and Google Scholar databases (through 2020) using Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. Meta-analysis was performed to estimate measures of proportions and differences in mean indemnity.

Outcomes and Complications With Treatment of Open Tibial Plafond Fractures With Circular External Fixator.

Background: Open tibial plafond fractures (Orthopaedic Trauma Association and AO Foundation [OTA/AO] 43) are associated with severe complications, including deep infection (closed fractures, 20%; open fractures, 30%), amputation (3%-14%), and nonunion (up to 25%). Circular external fixators (CEFs) can minimize soft tissue injury. This study aimed to report the rate of union and occurrence of severe complications in patients with open tibial plafond fractures treated with CEFs.

Operative Versus Nonoperative Management Of Traumatic Arthrotomies from Civilian Gunshot Wounds.

Background: Although the rate of non-fatal gunshot wounds (GSW) has increased, few studies have compared the effectiveness of operative and nonoperative treatment with specific focus on infection. We compared the risk of septic arthritis in patients with traumatic arthrotomies caused by GSW treated operatively with irrigation and debridement versus nonoperatively with antibiotics and wound care.

Methods: From 2009 to 2016, 46 patients at our institution sustained traumatic arthrotomies from low-velocity GSW with at least 90-day follow-up.

Electrical stimulation-based bone fracture treatment, if it works so well why do not more surgeons use it?

Background: Electrical stimulation (EStim) has been proven to promote bone healing in experimental settings and has been used clinically for many years and yet it has not become a mainstream clinical treatment.

Methods: To better understand this discrepancy we reviewed 72 animal and 69 clinical studies published between 1978 and 2017, and separately asked 161 orthopedic surgeons worldwide about their awareness, experience, and acceptance of EStim for treating fracture patients.

Results: Of the 72 animal studies, 77% reported positive outcomes, and the most common model, bone, fracture type, and method of administering EStim were dog, tibia, large bone defects, and DC, respectively.

Tibial Plateau Fractures: A New Rank Ordering Method For Determining To What Degree Injury Severity Or Quality Of Reduction Correlate With Clinical Outcome.

Background: Injury severity may be the most important factor in determining outcome after articular fractures, but there is a surprising paucity of clinical evidence to support this assertion. The purpose of this study was to utilize a new method for rank ordering a group of patient radiographs to assess the effect of injury severity and quality of reduction on patient outcomes after tibial plateau fractures.

Methods: Tibial plateau fractures in 64 patients were treated operatively or non-operatively based on physician preference from standard of care techniques.

How Many Orthopaedic Surgeons Does It Take to Write a Manuscript? A Vignette-Based Discussion of Authorship in Orthopaedic Surgery.

The issue of appropriate authorship designation continues to be a topic of importance because authorship of scholarly work plays an important role in the academic community. It is a recognition of an individual's scholarly work and a factor in academic promotion. The Orthopaedic Trauma Association (OTA) sponsored a minisymposium in 2014 to encourage discussion of the issues that arise in authorship decisions.

Risk Factors for Surgical Site Infections Following Anterior Cruciate Ligament Reconstruction.

OBJECTIVE To determine the effect of graft choice (allograft, bone-patellar tendon-bone autograft, or hamstring autograft) on deep tissue infections following anterior cruciate ligament (ACL) reconstructions. DESIGN Retrospective cohort study. SETTING AND POPULATION Patients from 6 US health plans who underwent ACL reconstruction from January 1, 2000, through December 31, 2008.

Titanium mesh as a low-profile alternative for tension-band augmentation in patella fracture fixation: A biomechanical study.

Objectives: We performed a simple biomechanical study to compare the fixation strength of titanium mesh with traditional tension-band augmentation, which is a standard treatment for transverse patella fractures. We hypothesised that titanium mesh augmentation is not inferior in fixation strength to the standard treatment.

Methods: Twenty-four synthetic patellae were tested.

Pelvic crescent fractures: variations in injury mechanism and radiographic pattern.

Pelvic crescent fracture, also known as sacroiliac fracture-dislocation, is traditionally considered as a lateral compression injury and a vertically stable injury. Thirty consecutive cases were analyzed and it was found that 63% of cases were caused by lateral compression (LC), 27% by anteroposterior compression (APC), and 10% by vertical shear (VS). APC and VS injuries cause significant displacement of the anterior iliac fragment, but 21% of LC injury cases showed minimal displacement and were treated successfully with nonoperative treatment.

The utility of claims data for infection surveillance following anterior cruciate ligament reconstruction.

Objective: To explore the feasibility of identifying anterior cruciate ligament (ACL) allograft implantations and infections using claims.

Design: Retrospective cohort study.

Methods: We identified ACL reconstructions using procedure codes at 6 health plans from 2000 to 2008.

Scapula fractures: interobserver reliability of classification and treatment.

Objectives: There is substantial variation in the classification and management of scapula fractures. The first purpose of this study was to analyze the interobserver reliability of the OTA/AO classification and the New International Classification for Scapula Fractures. The second purpose was to assess the proportion of agreement among orthopaedic surgeons on operative or nonoperative treatment.

The OTA open fracture classification: a study of reliability and agreement.

Objectives: To determine the reliability of the Orthopaedic Trauma Association (OTA) Open Fracture Classification.

Design: Video-based reliability study.

Setting: Orthopedic meetings and grand rounds.