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Biomedical subjects

J V Marymont

Publications and source records attributed to J V Marymont.

At least 19 recordsLinked to original sources
PubMed2001

Calcaneocuboid stability: a clinical and anatomic study.

Injuries to the midtarsal joints are relatively uncommon and often unrecognized entities. Acute and chronic instability patterns to the calcaneocuboid joint can occur from such injuries. No previous determinations of normal calcaneocuboid laxity have been reported. Utilizing a previously described technique, stress radiographs were performed in human cadaveric specimens following serial sectioning of the ligamentous supports of the calcaneocuboid joint. Significant differences in calcaneocuboid gap and angle occurred between unstressed and stressed conditions. Cadaveric specimen testing determined that the dorsal and plantar calcaneocuboid ligaments both provide significant contributions to joint stability. Prior to defining pathologic states of joint laxity, normal ranges of stability must be determined. By more clearly defining normal stability of the calcaneocuboid joint and its ligamentous contributions, greater insight into the diagnosis and treatment of calcaneocuboid instability can be obtained.

Adult↗
PubMed2001

Tarsal navicular fractures in major league baseball players at bat.

Tarsal navicular fractures in athletes, although rare, can present both a diagnostic and therapeutic dilemma. Failure to recognize this injury and initiate treatment early can have devastating consequences. The physician must have a high index of suspicion for the injury in any patient with midfoot pain after a direct blow. Two case reports of tarsal navicular fractures sustained by baseball players at bat in which the diagnosis was not made early are presented.

Adult↗
PubMed1996

Treatment of plantar fasciitis with a night splint and shoe modification consisting of a steel shank and anterior rocker bottom.

Seventy-one feet in 57 patients with plantar fasciitis were treated with the combination of a night splint and a shoe modification consisting of a steel shank and anterior rocker bottom. At average follow-up of 16 months, symptoms were resolved in 42 (59%), improved in 13 (18%), not changed in 11 (15%), and worse in 5 (7%) of the feet. No relation was found between outcome and age, gender, duration of symptoms, and bilateral involvement. The method is effective for the treatment of plantar fasciitis.

Adult↗
PubMed1996

Proximal interphalangeal joint injuries of the hand. Part I: anatomy and diagnosis.

Injury to the proximal interphalangeal (PIP) joint is one of the most common hand injuries encountered by orthopedic surgeons. The injuries are often misdiagnosed, resulting in delayed treatment and permanent impairment. The different types of PIP-joint fractures and dislocations have been well described, and a variety of therapeutic options have been proposed. Early detection and aggressive rehabilitation are the cornerstones of successful treatment. This is the first of a two-part series reviewing PIP injuries. We describe the anatomy and biomechanics of the PIP joint and review the classification and diagnosis of these injuries.

Biomechanical Phenomena↗
PubMed1994

Sarcoidosis of the axial skeleton.

Sarcoidosis of the bones in the hands and feet is not uncommon. However, sarcoidosis involving the axial skeleton is unusual. The authors present the case of a 37-year-old man with sarcoidosis who developed low-back pain. Radionuclide bone scan demonstrated abnormalities in the pelvis, spine, and scapulae. A bone scan directed open biopsy of an abnormality in diagnostic tissue from the ilium.

Adult↗
PubMed1990

Leiomyosarcoma of the os calcis.

A primary leiomyosarcoma of the os calcis, occurring in a 68-year-old woman and treated by below-the-knee amputation, is reported. The diagnosis was confirmed by electron microscopy, and supported by immunochemistry. These techniques can be performed in a primary spindle cell osseous neoplasm to distinguish leiomyosarcoma from fibrosarcoma and malignant fibrous histiocytoma. A total of 28 cases of primary leiomyosarcoma of extragnathic bones have been reported in the literature with one occurring in the foot. This is the first reported case involving the os calcis and the first reported leiomyosarcoma of the foot in the English literature.

Aged↗
PubMed1990

Posterior hip dislocation associated with acute traumatic injury of the thoracic aorta: a previously unrecognized injury complex.

Posterior hip dislocation associated with acute injury to the thoracic aorta is a previously unrecognized injury complex. This study reveals that 8% of patients with posterior hip dislocation have associated injury to the thoracic aorta because of abrupt deceleration injuries. This study defines the association of traumatic posterior hip dislocation and acute traumatic injury of the thoracic aorta, describes the mechanism of injury, and discusses the evaluation of a patient with a suspected acute traumatic aortic injury.

Adult↗
PubMed1989

Sports-related spontaneous fractures of the humerus.

An example of a spontaneous spiral fracture of the humerus in a healthy softball player is presented. This rare injury is discussed, addressing the mechanisms of injury, the treatment, and the types of sports in which this type of fracture has been reported to occur.

Adult↗
PubMed1988

Spinal osteoblastoma in an 11-year-old boy.

An 11-year-old boy with pain in the right sacroiliac region was treated conservatively for six months. During this time, decreased pinprick sensation in the right thigh, shortening of the right leg, and scoliosis developed. Multiple plain films of the spine had shown no abnormality. A bone scan revealed an abnormality in the lumbar spine, and CT showed a destructive lesion. An osteoblastoma was completely resected and the child has remained well for four years.

Child↗
PubMed1988

Vertebral hemangioma associated with spinal cord compression.

We have described a case in which a vertebral hemangioma caused spinal cord compression in a 14-year-old girl. The diagnosis was originally missed for several reasons, one of which was the failure to obtain a plain film of the spine before ordering both CT and MR studies. This case illustrates the importance of basic diagnostic procedures.

Adolescent↗
PubMed1987

Splenic lymphangiomatosis: a rare cause of splenomegaly.

A case of lymphangiomatosis of the spleen and adrenal in a 10-year-old girl is described. The patient had multiple recurrent lymphangiomata excised from her neck during the first 4 years of life. She presented with a recurrent cystic hygroma of the neck and was found to have an enlarged spleen. This increased in size during 5 months of observation, causing left upper quadrant discomfort, and was excised. The diagnosis, management, and prognosis of this rare disorder are discussed.

Adrenal Gland Neoplasms↗
PubMed1987

Maffucci's syndrome complicated by carcinoma of the breast, pituitary adenoma, and mediastinal hemangioma.

We have described a 39-year-old woman with Maffucci's syndrome, large mediastinal hemangiomas, infiltrating adenocarcinoma of the breast, and pituitary adenoma. This is the fifth reported case of Maffucci's syndrome with a coexistent pituitary adenoma, a frequency that cannot be explained by chance alone. There has been only one previously reported case in which the patient had a widened mediastinum, but the etiology was not discussed. Three of the four previously described patients with Maffucci's syndrome and a pituitary adenoma also had a proven or possible associated epithelial neoplasm. While this association is tenuous, it is considered worthy of comment.

Adenoma↗
PubMed1986

Osteonecrosis of bone associated with combination chemotherapy without corticosteroids.

Osteonecrosis (aseptic or avascular necrosis of bone) is an entity with many causes that can occur at a variety of sites. It is a known complication of corticosteroid therapy, either alone or combined with other drugs in the treatment of malignancy. Osteonecrosis associated with chemotherapy that does not include corticosteroids is rare; three such cases have been reported in the English literature. One received cyclophosphamide alone, another vinblastine and bleomycin, while the third received cyclophosphamide, methotrexate, and 5-fluorouracil. The authors report a 40-year-old woman who had a left radical mastectomy in 1978 and a right radical mastectomy in 1980 for infiltrating ductal adenocarcinoma of the breasts. She received melphalan following the first surgery and a combination of doxorubicin, cyclophosphamide, and 5-fluorouracil after the second operation. In 1984 she noted pain in both knees that slowly increased in severity. A bone scan revealed increased periarticular activity in the medial and lateral femoral condyles of both knees compatible with bilateral osteonecrosis. There was no evidence of metastatic carcinoma on the bone scan. The patient was treated surgically with drilling and autologous bone grafting. A bone biopsy at the time of surgery revealed osteonecrosis but no metastatic adenocarcinoma.

Adult↗
PubMed1985

Chemical cholecystitis associated with hepatic arterial chemotherapy delivered by a permanently implanted pump.

The introduction of chemotherapeutic agents directly into the proper hepatic artery via an indwelling catheter results in perfusion of the gallbladder, because the cystic artery is usually a branch of the right hepatic artery. Five gallbladders, removed two to 16 months after insertion of permanently implanted Infusaid model 400 pumps, were examined. All of the gallbladders had significant arteritis, with narrowing or occlusion of lumina or necrosis of vessel walls. Fibrosis of the gallbladder wall was also a constant finding. Nuclear atypia of mucosal epithelium and connective tissue was common. Varying degrees of acute and chronic inflammation were present. These abnormalities may have a radiomimetic and direct irritant pathogenesis.

Adenocarcinoma↗
PubMed1985

Hepatobiliary scintigraphy in patients receiving hepatic artery infusion chemotherapy.

Hepatic artery infusion chemotherapy is used in the treatment of certain selected hepatic tumors, especially metastatic adenocarcinoma of the colon. Chemical cholecystitis has been recognized recently as a complication of hepatic artery infusion chemotherapy. We performed hepatobiliary scans on ten patients receiving hepatic artery infusion chemotherapy. All ten patients had abnormal hepatobiliary scintigraphy. We present case reports of three patients with abnormal hepatobiliary scans who have required cholecystectomy for symptoms of chemical cholecystitis to illustrate the clinical, scintigraphic, and pathologic findings in these patients.

Adenocarcinoma↗
PubMed1982

Evaluations of antimicrobial susceptibility test proficiency by the College of American Pathologists Survey program. A clarification of quality control recommendations.

The College of American Pathologists (CAP) Interlaboratory Survey Program in microbiology was reviewed for quality control practices of the Special Bacteriology participants (907 laboratories) using the disk agar diffusion antimicrobial susceptibility test method. Data from a questionnaire was compared to performance results on two well recognized quality control strains, e.g., Pseudomonas aeruginosa ATCC 27853 and Streptococcus faecalis ATCC 29212. The results show no significant difference in survey performance between those participants using daily controls (97.78 and 96.99% acceptable results) and those using weekly controls (97.33 and 96.67% acceptable results). Similarly, the number of tests done per work day had little influence on the reported mean zone diameter and subscriber results were comparable to published means from the reference literature. Recommendations are made to use weekly quality control after test proficiency has been repeatedly demonstrated by daily or batch control results. More frequent testing would be required if any reagent lot were replaced or altered. Comparable data on quality control intervals of greater than 7 days was not evaluated due to small numbers of test results.

Cost Control↗