Curtis W. Hayes

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The bone marrow edema (BME) pattern of signal intensity changes on magnetic resonance (MR) images (decreased on T1-weighted and increased on T2-weighted) is a nonspecific finding encountered with several entities, including transient osteoporosis of the hip, transient BME syndrome, osteonecrosis, trauma, infection, and infiltrative neoplasm. Transient(More)
OBJECTIVE The objective of this study was to assess the ability of sonography to reveal Baker's cysts using MR imaging as a gold standard. MATERIALS AND METHODS The study group consisted of 36 consecutive knees in 36 patients evaluated with both MR imaging and sonography. Inclusion criteria included axial proton density-weighted or T2-weighted MR images,(More)
Five cases of calcific tendinitis with radiographic evidence of cortical bone erosion are presented. All five cases arose at unusual sites: two at the pectoralis major insertion on the proximal humerus, two at the insertion of the gluteus maximus, and one at the insertion of the adductor magnus. Biopsy was performed in four cases and revealed areas of(More)
After plain radiography has been performed, magnetic resonance (MR) imaging is considered the modality of choice for the evaluation of suspected musculoskeletal lesions because of its exquisite sensitivity to changes in the signal intensity of marrow and soft tissue. That sensitivity, however, may lead to an overestimation of the aggressiveness and extent(More)
OBJECTIVE In previous studies conducted outside the US, ∼20% of total knee arthroplasty (TKA) surgeries were judged to be inappropriate. The present study was undertaken to determine the prevalence rates of TKA surgeries classified as appropriate, inconclusive, and inappropriate in a knee osteoarthritis population in the US. METHODS We used a modification(More)
Fourteen freshly disarticulated knee specimens were studied to assess the usefulness of magnetic resonance (MR) imaging in the detection and correct staging of patellar chondral lesions. Axial and sagittal images were obtained; T1-weighted spin-echo sequences were found satisfactory for defining cartilage morphology. Specimens were sectioned and examined(More)
Calcium hydroxyapatite crystal deposition disease is characterized by the presence of basic calcium phosphate crystals--predominantly hydroxyapatite--in the periarticular soft tissues, especially the tendons. The entity is best recognized as "calcific tendinitis" at its most frequent site about the shoulder, but the disease involves numerous other sites and(More)
Complex knee injuries are common, often resulting from multiple forces: varus, valgus, hyperextension, hyperflexion, internal rotation, external rotation, anterior or posterior translation, and axial load. Certain combinations of forces are known to cause specific injury patterns. After a review of the literature, the authors developed a mechanism-based(More)
PURPOSE To prospectively compare magnetic resonance (MR) imaging-defined abnormalities of osteoarthritis (OA) of the knee with radiographic severity measurements of OA of the knee and self-reported pain. MATERIALS AND METHODS This study was approved by the institutional review board of University of Michigan. Informed consent was obtained for this(More)
PURPOSE To determine and illustrate the causes of unproductive arthrocentesis of the knee. PATIENTS AND METHODS Consecutive patients were studied who had inflammatory (rheumatoid or psoriatic) arthritis affecting the knees and experienced unproductive arthrocentesis during a randomized, controlled trial. Magnetic resonance imaging (MRI) was used,(More)