Publications by authors named "H G Greditzer"
Objectives: Septic arthritis after anterior cruciate ligament (ACL) reconstruction is a rare but potentially devastating complication. The imaging findings associated with such infections are not well-described or quantified. The purpose of this study was to describe and quantify the frequency of the characteristic MRI findings of infection following ACL reconstruction.
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- Hamstring strain injuries (HSIs) are common in NFL players, particularly affecting positions like wide receivers and defensive backs, with the biceps femoris being the most frequently injured muscle.
- A study analyzed 180 acute HSIs from the 2018-2019 NFL season to explore the relationship between player characteristics, clinical exams, and MRI findings regarding injury severity and time missed from games.
- Findings indicated that nearly half of the injuries were moderate (BAMIC grade 2), with specific locations on the biceps femoris and semimembranosus being the most affected, and MRI detected abnormalities in the sciatic nerve in some cases.
Background: Bone-patellar tendon-bone (BPTB) autograft size may be one modifiable predictor of anterior cruciate ligament (ACL) reconstruction postoperative success, as smaller graft diameter has been associated with higher rates of rupture requiring revision. However, measuring the true intra-articular tendinous graft diameter of the soft tissue portion of a BPTB graft with standard intraoperative methods is difficult while keeping the graft intact.
Purpose/hypothesis: The purpose of the study was to use 3-dimensional magnetic resonance imaging (MRI) measurements to determine the cross-sectional area of the soft tissue, tendinous portion of a standard BPTB autograft with 10-mm diameter bone plugs, and, by calculation, the collagen graft size (ie, graft diameter), as would typically be reported in ACL reconstruction studies that consider soft tissue graft size.
Injuries in pediatric and adolescent athletes continue to rise in the United States, with increases in year-round sports participation, earlier sport specialization, and inadequate access to neuromuscular training programs. In this setting, the use of magnetic resonance imaging (MRI) provides a critical diagnostic tool. This review article describes the utility of MRI in diagnosing common pediatric and adolescent sports injuries and presents imaging findings associated with these pathologies.
View Article and Find Full Text PDFPurpose: To develop a deep learning model for the detection of Segond fractures on anteroposterior (AP) knee radiographs and to compare model performance to that of trained human experts.
Methods: AP knee radiographs were retrieved from the Hospital for Special Surgery ACL Registry, which enrolled patients between 2009 and 2013. All images corresponded to patients who underwent anterior cruciate ligament reconstruction by 1 of 23 surgeons included in the registry data.