11,156 results match your criteria: "American Journal of Sports Medicine[Journal]"

A Simple Clinical Predictive Model for Arthroscopic Mobility of Osteochondritis Dissecans Lesions of the Knee.

Am J Sports Med

December 2024

Emory Sports Performance and Research Center(SPARC), Flowery Branch, Georgia; Emory Sports Medicine Center, Atlanta, Georgia; Emory Sports Medicine Center, Atlanta, Georgia, USA; Department of Orthopaedics, Emory University School of Medicine, Atlanta, Georgia.

Background: Osteochondritis dissecans (OCD) of the knee is a focal idiopathic alteration of subchondral bone and/or its precursor with risk for instability and disruption of adjacent cartilage. Treatment options focused on preventing premature osteoarthritis vary depending on multiple patient and lesion characteristics, including lesion mobility.

Purpose: To differentiate lesion mobility before arthroscopy using a multivariable model that includes patient demographic characteristics and physical examination findings.

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Background: The microvasculature of the human meniscus has been previously described by Arnoczky and Warren. However, to date, the qualitative and quantitative extra-articular vascular anatomy of the medial meniscus has not been characterized.

Purposes: To perform a qualitative and quantitative anatomic study of the extra-articular medial meniscal vasculature and to introduce the novel "medial meniscal artery" (MMA), potentially providing future guidelines for the treatment of meniscal abnormalities.

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Background: There may be an association between repetitive stress on the elbow and capitellar osteochondritis dissecans (COCD). The influence of activity on the characteristics or specific location of the lesion within a capitellar zone of propensity remains unclear.

Purpose/hypothesis: The purpose of this study was to evaluate COCD in gymnasts and baseball players compared with a non-upper extremity (non-UE) sport COCD cohort.

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Article Synopsis
  • The study explored the effectiveness of using anatomical landmarks for determining fixation points in lateral extra-articular tenodesis (LET) during ACL reconstruction, focusing on whether the points fell within a specific radiographic zone.
  • Researchers reviewed postoperative knee radiographs from 47 patients, analyzing the distance of the LET points from established anatomical lines to assess their accuracy.
  • Results showed that only 53% of the fixation points were within the ideal zone, with the majority (18 out of 22) of mispositioned points being located anteriorly to the specified radiographic zone.
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Background: Sleep disturbance is commonly reported by patients wearing an abduction brace after arthroscopic rotator cuff repair (ARCR). Although a sling has been proven noninferior to an abduction brace for function and repair integrity, there is no evidence-based medical support for the advantage of the sling in improving sleep quality compared with a brace.

Purpose/hypothesis: This study aimed to compare the effects of a sling and an abduction brace on sleep quality and clinical outcomes after ARCR.

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Article Synopsis
  • Latissimus dorsi tendon transfer (LDTT) has been shown to improve shoulder function and reduce pain over a long-term period, particularly in patients with irreparable massive rotator cuff tears, although those with fatty infiltration of certain muscles may have worse outcomes.
  • This study followed 143 patients who underwent LDTT between 2004 and 2013, collecting data on complications and outcomes after a minimum of 10 years, with some patients ultimately needing further surgery (reverse shoulder arthroplasty).
  • Out of the tracked patients, 101 were evaluated at an average of 12.3 years post-surgery, providing valuable long-term insights into the effectiveness of LDTT in enhancing shoulder mobility and function.
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Background: Previous studies have examined the relationship between patient resilience and functional outcome scores after anterior cruciate ligament reconstruction (ACLR). However, past studies have failed to explore the longitudinal relationship between preoperative resilience and functional outcomes 2 years after ACLR.

Purpose: To evaluate the relationship between preoperative patient resilience and functional outcomes 2 years after ACLR.

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Article Synopsis
  • The study investigates how effectively MRI can detect meniscal ramp lesions in the knee when positioned at 120° flexion versus near extension, noting that traditional MRI methods have low sensitivity for these types of injuries.* -
  • Researchers analyzed data from 154 patients undergoing ACL reconstruction and found that MRI in the flexed position had significantly higher sensitivity (91.9% vs. 69.4%) and specificity (94.6% vs. 77.2%) in identifying these lesions.* -
  • The findings suggest that performing MRI scans with the knee flexed improves diagnostic accuracy for ramp lesions, which is crucial for proper preoperative planning in ACL reconstructive surgery.*
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Background: Both high body mass index (BMI) and anterior cruciate ligament reconstruction (ACLR) independently influence knee osteoarthritis risk. Preliminary evidence shows the combination of these risk factors leads to poorer recovery and altered biomechanical outcomes after ACLR, but few studies have directly evaluated early changes in cartilage health between normal-BMI and high-BMI groups in this population.

Purpose: To evaluate ultrasound-based measures of cartilage strain and compositional changes (via echo-intensity [EI]) in response to an incline walking stress test between normal-BMI and high-BMI individuals with ACLR.

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Surgical Predictors of Clinical Outcome 6 Years After Revision ACL Reconstruction.

Am J Sports Med

November 2024

Luminis Health Orthopedics, Pasadena, MD, USA.

Background: Revision anterior cruciate ligament (ACL) reconstruction has been documented to have inferior outcomes compared with primary ACL reconstruction. The reasons why remain unknown.

Purpose: To determine whether surgical factors performed at the time of revision ACL reconstruction can influence a patient's outcome at 6-year follow-up.

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