Anterior Cruciate Ligament Injury Does Not Increase the Risk for a Future Concussion: A Unidirectional Phenomenon.

Context: Epidemiological studies have shown an increased risk of musculoskeletal injury after concussion. The purpose of this study was to determine whether the reverse relationship exists, specifically whether there is an increased risk of concussion after an anterior cruciate ligament (ACL) injury in a population-based cohort.

Design: Retrospective cohort.

How Does the Physician Patient Fare After Primary Total Hip and Knee Arthroplasty?

Background: Physician patients requiring surgery present with occupational risks and personality traits that may affect outcomes. This study compared implant survivorship, complications, and clinical outcomes of physicians undergoing primary total hip arthroplasty (THA) or total knee arthroplasty (TKA).

Methods: A retrospective review of our institutional total joint registry identified 185 physicians undergoing primary THA (n = 94) or TKA (n = 91).

Do breast cancer patients have increased risk of complications after primary total hip and total knee arthroplasty?

Aims: Breast cancer survivors have known risk factors that might influence the results of total hip arthroplasty (THA) or total knee arthroplasty (TKA). This study evaluated clinical outcomes of patients with breast cancer history after primary THA and TKA.

Methods: Our total joint registry identified patients with breast cancer history undergoing primary THA (n = 423) and TKA (n = 540).

Knee Arthroscopy Following Total Knee Arthroplasty is Not Associated With an Elevated Risk of Infection.

Background: Recent literature has suggested that knee arthroscopy (KA) following ipsilateral primary total knee arthroplasty (TKA) may be associated with an increased risk of periprosthetic joint infection (PJI). However, prior studies on this subject have relied on insurance databases or have lacked control groups for comparison. This study aimed to evaluate the risk of PJI in patients undergoing ipsilateral KA after primary TKA at a single institution.

Intussusception Allograft Prosthetic Composites in Total Hip Arthroplasty: A Salvage Operation for Extensive Femoral Bone Loss.

Background: Allograft prosthetic composites (APCs) have been used to perform revision total hip arthroplasty (THA) for massive femoral bone loss or deformity. Intussusception, or "telescoping", APC techniques have been proposed to enhance the contact area of this interface and provide superior mechanical fixation over conventional methods. The purpose of this study is to present to our knowledge, the largest series of telescoping APC THAs, along with surgical technique details and midterm (average 5-10 years) clinical results.

Contemporary Outcomes of Transfemoral Amputation After Total Knee Arthroplasty.

Background: Transfemoral amputation (TFA) is a salvage procedure for unreconstructable failed total knee arthroplasty (TKA). Prior studies have reported poor outcomes, patient survival, and prosthetic use. The purpose of this study was to analyze patient outcomes and prosthetic utilization in a contemporary group of patients undergoing TFA in the setting of a TKA.

Anterior Shoulder Instability in Throwers and Overhead Athletes: Long-term Outcomes in a Geographic Cohort.

Background: Athletes of all sports often have shoulder instability, most commonly as anterior shoulder instability (ASI). For overhead athletes (OHAs) and those participating in throwing sports, clinical and surgical decision making can be difficult owing to a lack of long-term outcome studies in this population of athletes.

Purpose/hypothesis: To report presentation characteristics, pathology, treatment strategies, and outcomes of ASI in OHAs and throwers in a geographic cohort.

The Open Triradiate Cartilage: How Young Is Too Young for Total Hip Arthroplasty?

Background: There is, to our knowledge, no published literature regarding primary total hip arthroplasty (THA) in pediatric patients with an open triradiate cartilage. The purpose of this study was to report the outcomes following primary THA in pediatric patients with open triradiate cartilage at a single intuition.

Methods: Using a single institution's Total Joint Registry, 12 patients (13 hips) were identified as having undergone primary THA with open triradiate cartilage between the years of 2000 and 2019.

Increased risk of periprosthetic joint infection after acute, traumatic wound dehiscence following primary total knee arthroplasty.

Aims: To describe the risk of periprosthetic joint infection (PJI) and reoperation in patients who have an acute, traumatic wound dehiscence following total knee arthroplasty (TKA).

Methods: From January 2002 to December 2018, 16,134 primary TKAs were performed at a single institution. A total of 26 patients (0.

Humeral amputation following total elbow arthroplasty.

Purpose: Total elbow arthroplasty (TEA) is associated with a relatively high complication rate, and exceptionally catastrophic complications might lead to amputation. The purpose of this study was to determine the incidence and aetiology of amputation performed at our institution in upper extremity limbs with a prior TEA.

Methods: Between 1973 and 2018, 1906 consecutive TEAs were performed at our institution.

Utility of the Free Vascularized Fibula Flap to Reconstruct Oncologic Defects in the Upper Extremity.

Background/aim: Non-vascularized methods to reconstruct bone defects following tumor resection are associated with complications. As a result, the free vascularized fibular flap (FVF) has become a mainstay for reconstruction. The purpose of this study was to analyze FVF reconstruction in the upper extremity.

Effect of a Concussion on Anterior Cruciate Ligament Injury Risk in a General Population.

Background: Recent studies indicate concussion increases risk of musculoskeletal injury in specific groups of patients. The purpose of this study was to determine the odds of anterior cruciate ligament (ACL) injury after concussion in a population-based cohort.

Methods: International Classification of Diseases, 9th and 10th Revision (ICD-9, ICD-10) codes relevant to the diagnosis and treatment of a concussion and ACL tear were utilized to search the Rochester Epidemiology Project (REP) between 2000 and 2017.

Quantification of Peri-Implant Bacterial Load and in Vivo Biofilm Formation in an Innovative, Clinically Representative Mouse Model of Periprosthetic Joint Infection.

Background: Periprosthetic joint infection (PJI) is a devastating complication following total joint arthroplasty. Current animal models of PJI are limited because of a lack of quantitative methods and failure to effectively recreate the periprosthetic space. We therefore developed a murine PJI model involving a 3-dimensionally printed Ti-6Al-4V implant capable of bearing weight and permitting quantitative analysis of periprosthetic bacterial load and evaluation of biofilm.