The Effect of Sacrificing the Posterior Cruciate Ligament in Total Knee Arthroplasties That Use a Highly Congruent Polyethylene Component.

Background: There is continued debate regarding retention versus sacrificing of the posterior cruciate ligament (PCL) in total knee arthroplasty (TKA). We sought to determine if there was a difference in range of motion (ROM) after TKA between patients with PCL sacrifice versus PCL retention when using a highly congruent polyethylene insert.

Methods: We conducted an Institutional Review Board approved retrospective study of consecutive patients receiving TKA using the same implant with a highly congruent polyethylene component implanted by one surgeon from November 2013 to January 2016.

Risk Factors for Kidney Dysfunction With the Use of Gentamicin in Open Fracture Antibiotic Treatment.

Objectives: To evaluate all patients who received gentamicin for open fracture treatment and determine the incidence of, and risk factors for, kidney injury in this population.

Design: Retrospective, case control.

Setting: Single institution; Level 1 trauma center.

Stability of the Syndesmosis After Posterior Malleolar Fracture Fixation.

Background: We sought to define the rate of syndesmotic instability after anatomic reduction of the posterior malleolus when posterior stabilization of a trimalleolar or trimalleolar equivalent ankle fracture was chosen vs when a supine position and initially conservative management of the posterior elements was chosen.

Methods: The types of syndesmotic and posterior malleolar fixation used to treat adult patients with ankle fractures involving the posterior malleolus at our level I trauma center were retrospectively assessed (N = 198). Specifically, both bimalleolar and trimalleolar fractures were included.

Extent and Morbidity of Lateralization of a Trochanteric Fixation Nail Blade.

This study examined the incidence and risk factors associated with lateral helical blade migration and trochanteric pain with the trochanteric fixation nail. A retrospective review was performed of 141 cases of pertrochanteric femur fracture treated with a trochanteric fixation nail at a level I trauma center over a period of 42 months. Exclusion criteria included follow-up of less than 60 days, preexisting osteonecrosis of the femoral head, and prophylactic trochanteric fixation nail treatment.

Generating stability in elderly acetabular fractures-A biomechanical assessment.

Background & Objectives: As the overall health and life expectancy increases in the United States, the incidence of fragility fractures in elderly patients also continues to increase. Given their medical comorbidities and decreased bone mineral density, acetabular fractures in the elderly population present a significant challenge to the orthopaedic trauma surgeon. The anterior column posterior hemitransverse (ACPHT) fracture pattern is a common fracture pattern in this population, and is often associated with central subluxation/dislocation of the femoral head with articular impaction.

Efficacy of Two Techniques in Anterior Cruciate Ligament Reconstruction.

The purpose of this study is to compare failure rate and functional outcome in young, active patients (< 25 years) with two-incision (rear-entry) versus transtibial (all-endoscopic) anterior cruciate ligament (ACL) reconstructions.Utilizing a computerized relational database (Access 2007, Microsoft Inc., Redmond, WA), 480 patients were identified that underwent ACL reconstruction, using a bone-patellar-tendon-bone autograft, by a single surgeon between January 2000 and December 2010 via a transtibial or two-incision technique.

Relationship Between Posterior-Inferior Tibial Slope and Bilateral Noncontact ACL Injury.

Is there a correlation between increased posterior-inferior tibial slope angle and noncontact anterior cruciate ligament (ACL) injury? Does increasing the posterior-inferior tibial slope angle increase the risk of bilateral ACL injury? A computerized relational database (Access 2007; Microsoft Inc, Redmond, Washington) was used to conduct a retrospective review of patients undergoing bilateral or unilateral ACL reconstruction surgery or treatment by a single surgeon between 1995 and 2013. Included in the study were patients with bilateral and unilateral ACL injuries and patellofemoral pain syndrome with no associated ACL deficiency. Exclusion criteria included concomitant ligament injury, previous ACL reconstruction, and previous knee surgery.

Age, graft size, and Tegner activity level as predictors of failure in anterior cruciate ligament reconstruction with hamstring autograft.

Background: Patient age, Tegner activity level, and graft size could be factors that influence the outcome of anterior cruciate ligament reconstruction (ACLR) with hamstring autografts.

Hypothesis: Decreased graft size, higher Tegner activity score, and younger age are associated with an increased failure rate of ACLR, represented by continued knee laxity and revision surgery.

Study Design: Cohort study; Level of evidence, 3.

Anterior cruciate ligament graft failure: a comparison of graft type based on age and Tegner activity level.

Background: When reviewing anterior cruciate ligament instability, age, gender, activity level, associated injury, and type of graft should all be considered.

Hypothesis: The authors hypothesized that patients under 25 years of age will have higher failure rates with anterior cruciate ligament reconstruction than those older than 25 years, and that in the patients younger than 25 years, bone-patellar tendon-bone autograft will have the lowest failure rate.

Study Design: Cohort study; Level of evidence, 3.