Orthopaedic Journal of Sports Medicine

http://ojs.sagepub.com/

List of Papers (Total 792)

Cell-seeded Autologous Chondrocyte Implantation (cs-ACI) - A Simplified Implantation Technique with Maintained Clinical Outcomes

Objectives: The objective of this study was to investigate whether outcomes and failure rate of a simplified ACI technique (cs-ACI) were comparable to those of the more complicated traditional technique of a chondrocyte suspension injected under membrane cover (cACI).

Cartilage Thickness and Surface Roughness Patterns in Healthy and Osteoarthritis Knees: Novel 3D Analysis of Subjects from the Osteoarthritis Initiative

Objectives: Three-dimensional (3D) magnetic resonance imaging (MRI) enables characterization of articular cartilage (AC) morphology. AC is traditionally analyzed using mean cartilage thickness (MCT), but OA can occur without drastic changes in MCT due to regions of both thickening and thinning, as shown in recent studies. Our group recently developed a method to assess 3D AC...

Successful Return to Sport Following Distal Femoral Varus Osteotomy

Objectives: Distal femoral varus osteotomy is an effective treatment for unloading valgus knee malalignment; however, there is limited evidence on the ability for patients to return to athletics following this procedure. The purpose of this study is to report the functional outcomes and return to sport for athletic patients that underwent distal femoral varus osteotomy.

Customized Platelet-Rich Plasma for Skeletal Muscle Injuries

Objectives: Skeletal muscle injuries are among the most common sports-related trauma. Current treatment strategies result in formation of fibrous tissue that hinders the healing process before complete recovery. Incomplete recovery impairs muscle function and predisposes to re-injury. Platelet-Rich-Plasma (PRP) contains a multitude of growth factors and is an autologous source of...

A Wearable Neuromuscular Device Reduces ACL Injury Risk in Female Soccer Athletes

Objectives: Female soccer athletes have a three-fold greater risk of sustaining an ACL injury compared with their male counterparts yet only 1 in 5 teams engage in ACL risk reduction programs due to several participation barriers. The purpose of this study was to determine the effects of a wearable neuromuscular (WNM) device on postural control, performance and ACL injury risk in...

The Rise of Concussions in the Adolescent Population

Objectives: Concussion injuries have been correlated with significant long-term deleterious effects on patients. While recent studies have shown increased traumatic brain injuries (TBI) diagnosed in U.S. emergency departments, no studies have evaluated trends in concussion diagnoses across the general U.S. population in various age groups. The objective of this study is to...

Pharmacological Inhibition of Myostatin Protects Against Atrophy and Weakness after ACL Tear

Objectives: Many patients who suffer ACL tears have persistent atrophy and weakness even after rehabilitation. Myostatin is a cytokine that directly induces muscle atrophy, and previous studies using rodent models and patients have demonstrated an up regulation of myostatin after ACL tear. Using a preclinical rat model, our objective was to determine if the use of a...

Arthroscopic Treatment for Shoulder Instability with Glenoid Bone Loss Using Distal Tibia Allograft Augmentation - Short Term Results

Objectives: Background: The results of arthroscopic anterior labral (Bankart) repair have been shown to have high failure rate in patients with significant glenoid bone loss. Several reconstruction procedures using bone graft have been described to overcome the bone loss, including autogenous coracoid transfer to the anterior glenoid (Latarjet procedure) as well as iliac crest...

Physeal Disruption During ACL Reconstruction in Skeletally Immature Patients: Does Independent Femoral Tunnel Drilling Place the Physis at Greater Risk?

Objectives: The purpose of this study was to radiographically assess differences in distal femoral physeal disruption between transtibial and independent femoral tunnel drilling techniques following ACL reconstruction in skeletally immature patients.

Clinical Outcomes Following Arthroscopic Micro Fracture of the Hip

Objectives: Objective and clinical results of microfracture for treatment of chondral defects of the knee is well documented, yet outcomes for microfracture of the hip have not been extensively studied. Recently, several studies demonstrated clinical improvements in patients treated with microfracture of the hip. The purpose of this study is to examine clinical outcomes and...

MRI Predictors of Failure in Non-operative Management of Ulnar Collateral Ligament Injuries in Professional Baseball Pitchers

Objectives: Ulnar collateral injuries (UCL) of the elbow are prevalent among professional baseball pitchers. The decision on initial operative versus nonoperative management of these injuries remains subjective in many cases, with reported success rates with nonoperative management ranging from 42 to 93% in professional throwing athletes. No studies to date have identified...

Dynamic Loading Assessment at the Fifth Metatarsal in Elite Athletes with a history of Jones Fracture

Objectives: Fractures of the proximal metaphysis of the fifth metatarsal (i.e., Jones fractures) are common in the athletic population and frequently require surgical fixation to optimize healing rates and return to sport. Subtle hindfoot varus alignment, which likely results in greater forces at the fifth metatarsal, has been associated with increased risk of Jones fractures due...

The Synergistic Role of the Lateral Meniscus Posterior Root and the ALL in Providing Anterolateral Rotational Stability of the Knee

Objectives: Injury to the anterolateral ligament (ALL) has been reported to contribute to high-grade anterolateral laxity following anterior cruciate ligament (ACL) injury. Failure to address ALL injury has been suggested as a cause of persistent rotational laxity following ACL reconstruction. However, lateral meniscus posterior root (LMPR) tears have also has been shown to cause...

Clinical Outcomes of Medial Meniscus Posterior Root Tears: High Rates of Subsequent Surgery and Worsening Arthritis at 5 Year Follow-Up

Objectives: Medial meniscus posterior root tears (MMPRTs) present a unique challenge for both patients and surgeons as these tears have shown to be biomechanically equivalent to complete meniscectomy. However, little is known about the natural history of these lesions. Therefore, the purpose of this study is to describe the clinical course of MMPRTs with respect to subsequent...

Body Mass Index, Modulated by Lateral Posterior Tibial Slope, Predicts ACL Injury Risk

Objectives: Intervention strategies to prevent ACL injury rely on increasing knowledge of risk factors. While several modifiable and non-modifiable risk factors for ACL rupture have been identified, the interaction between them remains unknown. The aim of this study was to quantify the relationship between BMI and several knee geometries as potential risk factors for ACL injury...

NFL Combine Athletic Performance after ACL Reconstruction

Objectives: The purpose of this study was to determine the functional performance of NFL combine participants after ACL reconstruction compared with an age-, size-, and position-matched control group. The hypothesis was that there would be no difference between players after ACL reconstruction as compared with controls in functional athletic performance.

The Effect of Excessive Glenhumeral Internal Rotation Deficit on Subacromial Joint Space and Forward Scapular Posture among Baseball Pitchers

Objectives: Baseball pitchers frequently present with varying levels of glenohumeral internal rotation deficits (GIRD) in their throwing arms when compared to their non-throwing arms. However, excessive bilateral differences in internal rotation motion have been associated with several shoulder pathologies including both subacromial and internal impingement. Additionally...

Do Age and Weight Bearing Films Affect Lateral Joint Space and Fibular Height Measurements in Patients with Discoid Lateral Meniscus?

Objectives: Several radiographic parameters have been associated with discoid lateral meniscus. We sought to determine the effect of age and weight bearing (WB) on radiographic parameters associated with lateral discoid menisci in pediatric patients.

Development and Validation of Cognitive Rehearsal as a Training Strategy for Arthroscopic Surgery

Objectives: Surgical performance is a highly intellectual activity that involves the processing of perceptual information from the five senses. Strategies to process, organize, and retain this perceptual information may benefit learning techniques. Once such strategy, cognitive rehearsal, is the activity where a skill is rehearsed in memory prior to the actual performance. This...

Practice Patterns in the Care of Acute Achilles Tendon Ruptures: Is There an Association with Level I Evidence?

Objectives: Over the last decade, there has been a growing body of level I evidence supporting non-operative management (focused on early range of motion and weight bearing) of acute Achilles tendon ruptures. Despite this emerging evidence, there have been very few studies evaluating its uptake. Our primary objective was to determine whether the findings from a landmark trial...

Experience Rate of Elbow Pain and Morphological Abnormality of Humeral Medial Epicondyle among Youth Baseball Players

Objectives: The aim of this study was to investigate the experience rate of elbow pain and to clarify the relationship between morphological abnormality of the humeral medial epicondyle and positions among baseball players in elementary school (ES), junior high school (JHS) and high school (HS).

Rotator Cuff Tear Shape Characterization: A Prospective Comparison Of Two-dimensional Imaging And Three-dimensional Magnetic Resonance Reconstructions

Objectives: Proper surgical planning requires accurate and reliable pre-operative patient information. The more comprehensive the data, the more the surgeon can tailor a general surgical technique to an individual patient’s unique anatomy. A previous retrospective study demonstrated that three-dimensional magnetic resonance imaging more accurately characterized rotator cuff tears...

Cabaud Award Winner: Platelet rich plasma activates pro-inflammatory signaling pathways and induces oxidative stress in tendon fibroblasts

Background: Tendon disorders are among the most common musculoskeletal conditions in active patients. Platelet rich plasma (PRP) has been used in the treatment of tendon disorders, but little is known as to the mechanisms by which PRP acts. PRP contains numerous different growth factors and cytokines which activate various cellular signaling cascades, but it has been difficult to...

Vascularity Visualized by Doppler Sonography as a Predictor of Healing Potential of the OCD of the Humeral Capitellum

Objectives: The significance of vascularity visualized by Doppler sonography in osteochondritis dissecance (OCD) lesion of the humeral capitellum is unclear. The objectives of this study were twofold: 1) to evaluate the relationship between Doppler ultrasound (US) signals observed in OCD lesion of the humeral capitellum and X-ray stage; 2) to determine if the presence of Doppler...

Patient Reported Outcomes for Rotator Cuff Disease - Which PRO Should You Use?

Objectives: Patient reported outcomes (PRO) are important clinical and research tools that are utilized by orthopedic surgeons in order to assess health outcomes following treatment. This is particularly so in the setting of rotator cuff pathology, in which several different validated patient reported outcomes exist. However, multiple recent studies have demonstrated a lack of...