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Biomedical subjects

D M Forrester

Publications and source records attributed to D M Forrester.

28 records · Page 2Linked to original sources
PubMed1980

Classification of ankle fractures: an algorithm.

In 1950, Lauge-Hansen devised a classification of ankle fractures based on the position of the foot and the deforming force at the time of injury. This has been widely accepted by orthopedists, but is not in general use by radiologists. An algorithm based on his classification that allows rapid assessment of the mechanism of injury in 90%-95% of cases has been devised by the authors. Identification of the fractures and classification of the type of injury allows diagnosis of the otherwise occult ligamentous injuries. On the basis of location and appearance of the fibular fracture, the four types of injuries are immediately identified: pronation-abduction, pronation-lateral rotation, supination-adduction, and supination-lateral rotation. Subsequent assessment for medial malleolar fracture and then posterior malleolar fracture defines the stage of completeness of the injury and localizes the sites of ligamentous disruption.

Ankle↗
PubMed1978

Calcific tendinitis of the neck.

When a calcific deposit in the shoulder, hip or elbow ruptures, it results in severe pain and tenderness. Few clinicians are aware that the longus colli muscle of the neck is also subject to acute tendinitis. When it occurs, the pain and spasm mimic infectious spondylitis or meningitis. Four patients are presented with acute tendinitis of the longus colli muscle and the classic radiographic findings of soft-tissue swelling and amorphous calcium deposits in the tendon.

Adult↗
PubMed1978

Migrating bone shards in dissecting Charcot joints.

Extensive periarticular calcification is characteristic of Charcot joints. Fragmentation of the articular margins of bone contributes to the bony detritus, but the majority forms de novo in the joint capsule. Occasionally the calcific debris is seen far removed from the joint. Dissection of a chronically distended joint along muscle planes is most commonly associated with the inflammatory joint disease of rheumatoid arthritis. Its occurrence in Charcot joints is documented by arthrography, which demonstrates continuity of the joint space and the distant calcifications.

Adult↗
PubMed1977

Dysphagia and Forestier disease.

Forestier disease (ankylosing hyperostosis) is a well-recognized and common disease entity. Although these patients rarely have complaints related to their spine, they are seen by the otorhinolaryngologist because of dysphagia, since the osteophytic spurs may impinge on the posterior pharyngeal wall. Since the plain roentgenogram and barium swallow is so specific, biopsy examination of the pharyngeal mass is not necessary.

Cervical Vertebrae↗
PubMed1977

The radiology of bone and soft tissue sarcomas.

Solitary lesions of bone often have characteristic radiographic patterns that suggest the diagnosis of a specific bone tumor. Differentiation of tumor from infection, however, frequently may be impossible, and the majority of bone lesions require biopsy for histologic confirmation of the type of tumor or for identification of the infectious organism. Soft tissue masses, unlike bone tumors, most commonly look alike. They too require biopsy, but in this case to distinguish a benign mass from a soft tissue sarcoma. Special radiographic techniques such as isotopic and CAT scans or angiography add information about the morphology and response of adjacent bone, but fail to differentiate one category of disease from another or to establish a histologic diagnosis of the type of tumor.

Adolescent↗
PubMed1976

Periostitis and pseudoperiostitis.

Increased metabolic activity with the periosteum is demonstrated radiographically by the presence of a linear shadow of bone paralleling the cortex, most commonly reflecting increased osteoblastic activity and thus representing periosteal new bone. This is frequently seen in psoriatic arthritis and Reiter's syndrome. A similar picture occurs with increased osteoclastic activity and reflects rapid demineralization, simulating periostitis. This change must be recognized as a reflection of osteoporosis, lest the condition be misdiagnosed as inflammatory disease.

Arthritis↗