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Biomedical subjects

D Resnick

Publications and source records attributed to D Resnick.

At least 307 records · Page 17Linked to original sources
PubMed1988

Subtalar and intertarsal joint involvement in hemophilia and juvenile chronic arthritis: frequency and diagnostic significance of radiographic abnormalities.

Because radiological distinction between hemophilia and juvenile chronic arthritis can be difficult, the ankle and foot radiographs of patients affected by these two disorders were evaluated to compare the frequency and pattern of joint involvement. No statistical difference was noted between the frequency of posterior subtalar joint involvement in the two disorders, but, in the juvenile chronic arthritis group, more than 90% of the abnormal posterior subtalar joints were associated with intertarsal involvement. This association was never found in patients with hemophilia. Isolated tibiotalar joint involvement without subtalar abnormalities was significantly more frequent in hemophilia than in juvenile chronic arthritis. Although clinical differentiation between the two disorders is easily made, intertarsal joint involvement could be a useful feature in the radiological distinction of hemophilia and juvenile chronic arthritis.

Adolescent↗
PubMed1988

Isolated dislocation of the tarsal navicular: a case report.

Isolated dislocation of the tarsal navicular is a rare injury that is not mentioned in standard orthopedic textbooks and described only once in the English literature. Because of the rarity of this condition, the best means of treatment has not been established. A patient with this unusual dislocation was recently diagnosed and treated. Open reduction was eventually required, which was followed by the development of ischemic necrosis of the navicular.

Adult↗
PubMed1988

Spontaneous osteonecrosis of the tarsal navicular in adults: imaging findings.

We encountered five otherwise healthy adults with alterations of the tarsal navicular bone compatible with spontaneous osteonecrosis. Four women had bilateral involvement and one man had unilateral involvement. The patients were 23-71 years old. The disorder was initially described by Mueller and Weiss and should not be confused with Koehler disease (osteochondrosis of the tarsal navicular in children). This group of patients was compared with five other patients (29-74 years old) with similar radiographic and clinical changes in whom an underlying disease (rheumatoid arthritis, renal failure, trauma, and lupus erythematosus) associated with osteonecrosis was known. Routine radiography in both groups defined characteristic abnormalities of the navicular bone (decreased size, a comma-shaped configuration, increased radiodensity, fragmentation, and medial or medial and dorsal osseous protrusion). MR in three patients confirmed alterations consistent with osteonecrosis. Three of the patients without underlying disease had bilateral involvement on plain films, with flat feet and hindfoot valgus deformity, leading to local pain and deformity. In a fourth patient, bilateral distribution was documented by MR as marrow alterations. Although no certain pathogenic explanation for spontaneous osteonecrosis of the tarsal navicular is known, trauma and chronic stress changes caused by physiologic pressure on the medial longitudinal arch in hindfoot valgus and increased tension forces of the plantar aponeurosis during weight-bearing (in pes planus) may be important. Discrimination of primary from secondary osteonecrosis of the tarsal navicular bone is not possible by radiologic means alone, although bilateral distribution, particularly in women, favors the diagnosis of spontaneous disease.

Adult↗
PubMed1988

Neuroarthropathy associated with chronic alcoholism.

Neuroarthropathy involving the feet is seen most commonly in patients with diabetes mellitus. Chronic alcoholism has been implicated as a cause of neuroarthropathy, but many alcoholics have coexistent diabetes mellitus, which may not be detected by measuring blood glucose levels alone. We report five chronic alcoholic patients with neuroarthropathic alterations of the feet in whom coexistent diabetes mellitus was excluded by using laboratory methods that are more sensitive than those employed in previously reported series of alcoholic neuroarthropathy. The radiographic features of neuroarthropathy in our five cases consisted of hypertrophic changes at the tarsal joints in four, bony fragmentation at the tarsal and metatarsal regions in three, fracture dislocation at the tarsometatarsal joint in two, and multiple pathologic fractures in one. We conclude that alcoholism can result in neuroarthropathy in the absence of diabetes mellitus.

Adult↗
PubMed1988

Radiologic manifestations of arthritides involving the foot.

This article has discussed the radiographic manifestations of several of the more common articular disorders affecting the foot. An organized, thoughtful approach to radiographic analysis in patients with articular diseases of the foot generally ensures accurate diagnosis. This approach requires knowledge of the classic morphologic features of each articular disease as well as its typical distribution in the foot. Using knowledge of radiologic-pathologic correlation and the target area approach to disease, the physician can make an accurate diagnosis in most instances.

Arthritis↗
PubMed1988

Computed tomography of rheumatologic disorders. Part I.

The advent of computed tomographic (CT) scanning has initiated a revolutionary approach to the evaluation of articular disease. CT affords the opportunity to noninvasively evaluate both osseous and soft tissue structures during a single diagnostic examination. An optimal CT study demands proper technique, including a localization image, appropriate slice thickness and spacing, and window/level manipulation. The examination must be tailored to the specific indication for the study, which may include degenerative processes, inflammatory disease, or unexplained clinical symptomatology.

Humans↗
PubMed1988

Radiologic vignette: primary disorders of articular cartilage in childhood.

We discuss several less well recognized disorders of articular cartilage which may affect pediatric patients, including relapsing polychondritis, idiopathic chondrolysis of the hip and chondrolysis after slipped capital femoral epiphysis. Idiopathic osteolysis is not considered in our review because it has been well described previously.

Arthrography↗
PubMed1988

Computed tomography of rheumatologic disorders. Part II.

The advent of computed tomographic (CT) scanning has initiated a revolutionary approach to the evaluation of articular disease. CT affords the opportunity to noninvasively evaluate both osseous and soft tissue structures during a single diagnostic examination. An optimal CT study demands proper technique, including a localization image, appropriate slice thickness and spacing, and window/level manipulation. The examination must be tailored to the specific indication for the study, which may include degenerative processes, inflammatory disease, or unexplained clinical symptomatology.

Hip Joint↗
PubMed1988

Septic arthritis.

Infectious arthritis is a commonly encountered clinical problem which may result from articular contamination by a wide variety of organisms. Involvement of an articulation may occur by one of four mechanisms: hematogenous spread, spread from a contiguous source of infection, direct implantation, or postoperative contamination. Distribution is typically monoarticular with a swollen, erythematous, and painful joint. The radiographic differential diagnosis includes limited rheumatoid arthritis, gout, synovial osteochondromatosis, and pigmented villonodular synovitis. In order to prevent complications, including growth disturbances, articular destruction with ankylosis, osteomyelitis, or soft tissue extension, early diagnostic arthrocentesis is important. Radiographic abnormalities, which include soft tissue swelling, joint space loss, periarticular osteopenia, and central or marginal osseous erosions, may be delayed following clinical onset of infection. Advanced imaging techniques such as scintigraphy, CT, or MRI may allow accurate diagnosis of the infectious process at an earlier stage.

Arthritis, Infectious↗
PubMed1988

Diagnostic imaging of bone tumors in the foot.

Many tumor and tumor-like lesions may involve bone. Bone tumors in the foot are, however, very rare. An accurate diagnosis relies on a cooperative clinical and imaging effort. The patient's age, sex, history, clinical findings, and presentation, in addition to the radiographic features, allow for proper diagnosis. Specialized imaging techniques may be helpful in certain instances. Aside from a biopsy, the radiograph is clearly the most important single approach to the diagnosis of bone tumors affecting the foot.

Bone Cysts↗
PubMed1988

Arthrography, tenography, and bursography of the ankle and foot.

A brief description of normal anatomy and common arthrographic, tenographic, and bursographic procedures is presented. The described procedures are important diagnostic tools and do not carry major risk. Therefore, these procedures can be performed on an outpatient basis.

Ankle↗