Untreated Injuries to the Anterolateral Capsular Structures Do Not Affect Outcomes and Kinematics after Anatomic Anterior Cruciate Ligament Reconstruction.

Background: Injuries to the anterolateral complex (ALC) may contribute to increased rotatory knee laxity. However, it has not been evaluated whether such injuries affect in vivo kinematics when treated in situ. The purpose of this study was to determine the grade of ALC injury and its effect on kinematic and clinical outcomes of ACL-injured patients 24 months after anatomic ACL reconstruction.

Return to Play After PRP and Rehabilitation of 3 Elite Ice Hockey Players With Ulnar Collateral Ligament Injuries of the Elbow.

Background: Ulnar collateral ligament (UCL) injury is a well-described etiology of pain and decreased performance for the overhead athlete. Despite a growing volume of literature regarding the treatment of these injuries for overhead athletes, there is a paucity of such data regarding stickhandling collision sport athletes, such as ice hockey players.

Purpose/hypothesis: The purpose of this study was to characterize this injury among 3 elite ice hockey players and to describe the ability of these athletes to return to play, as well as to review the unique sport-specific implications of this injury, evaluation, nonsurgical management, and considerations for return to play.

Optimal Oblique Radiographs to Identify Fifth Carpometacarpal Dorsal Subluxations: A Cadaveric Study.

Purpose: Carpometacarpal (CMC) joint subluxations of the fifth finger are rare injuries and are notoriously difficult to diagnose due to severe swelling and overlapping of bones on radiographs. Various radiographic studies have been suggested to identify these injuries. We hypothesize that there will be no difference between various oblique radiographs for detection of a fifth finger CMC subluxation.

Effect of patient age on accuracy of primary MRI signs of long head of biceps tearing and instability in the shoulder: an MRI-arthroscopy correlation study.

Objective: To determine the effect of patient age on the accuracy of primary MRI signs of long head of biceps (LHB) tendon tearing and instability in the shoulder using arthroscopy as a reference standard.

Materials And Methods: Subjects with MRI studies and subsequent arthroscopy documenting LHB tendon pathology were identified and organized into three age groups (18-40, 41-60, 61-87). Normal and tendinopathic tendons were labeled grade 0, partial tears grade 1 and full tears grade 2.

The Influence of Meniscal and Anterolateral Capsular Injury on Knee Laxity in Patients With Anterior Cruciate Ligament Injuries.

Background: The role of the anterolateral capsule (ALC) as a secondary restraint to quantitative rotatory laxity of patients with an anterior cruciate ligament (ACL) injury is currently debated.

Purpose/hypothesis: The purpose was to determine the influence of concomitant ALC injuries as well as injuries to other soft tissue structures on rotatory knee laxity in patients with an ACL injury. It was hypothesized that a concomitant ALC injury would be associated with increased rotatory knee laxity as measured during a quantitative pivot-shift test.

Accuracy of magnetic resonance imaging in predicting the intraoperative tear characteristics of pectoralis major ruptures.

Background: Magnetic resonance imaging (MRI) is the preferred study of choice for pectoralis major ruptures. Because this is a rare injury, no large case series have evaluated the efficacy of MRI for diagnosing and characterizing pectoralis major ruptures. We hypothesized that MRI would be accurate for diagnosis of the location and grade of pectoralis major tears.

MRI evaluation and complications of medial patellofemoral ligament reconstruction.

Medial patellofemoral ligament (MPFL) reconstruction is a relatively new surgical technique for the treatment of recurrent patellar instability and dislocation. Radiologic findings following MPFL reconstruction are not well described in the existing literature. Here, we review the anatomy and biomechanics of the MPFL, review imaging findings following double-bundle MPFL reconstruction, and show examples of complications arising from reconstruction.

Clinical relevance and imaging features of isolated single bundle anterior cruciate tear and single bundle augmentation.

The anterior cruciate ligament (ACL) consists of two anatomic and functional bundles, the anteromedial and posterolateral bundle. Depending on the mechanism of injury, there are different injury patterns, demonstrating a wide spectrum of partial ACL tears. Single bundle partial ACL tears can be treated with augmentation.

Intramedullary osteosclerosis: An incidental sclerotic lesion in a trauma patient.

Intramedullary osteosclerosis, a rare entity, is usually diagnosed after the exclusion of more sinister etiologies. It typically affects the lower extremity and is more common in females. While the lesion may be discovered incidentally during imaging, presenting symptoms may include pain in the affected bone that is exacerbated with physical activity.

What is the role of intra-operative fluoroscopic measurements to determine tibial tunnel placement in anatomical anterior cruciate ligament reconstruction?

The hypothesis for this study was that intra-operative fluoroscopic measurements can be used to determine tibial tunnel placement during anatomic anterior cruciate ligament (ACL) reconstruction. The anteromedial (AM) and posterolateral (PL) bundle insertion sites were marked with a thermal device and measured in a consecutive cohort of 67 patients undergoing anatomical ACL reconstruction. For double bundle reconstruction, guide pins were passed in the center of the AM and PL tibial footprints.