A reproducible technique which does not require special equipment for demonstrating the cruciate ligaments by double contrast arthrography is described. The positive contrast medium coats the synovial surfaces of the ligaments, i.e., the anterior aspect of the anterior cruciate ligament and the posterior aspect of the posterior cruciate ligaments. The ligaments appear lucent by this technique because they are delineated by a sharp positive contrast medium/lucent interface. The study is performed prior to the meniscal exam before medium absorption occurs.

Humans↗

PubMed1976

Osteochondritis dissecans complicating Legg-Perthes disease. A report of four cases.

Osteochondritis dissecans of the femoral head occurs as a rare complication in the late onset of Legg-Perthes disease. The etiology of this complication is uncertain. Theories include: (a) persistence of an ununited fragment and (b) fragmentation of the femoral head weakened by revascularization accompanying healing. The area of osteochondritis dissecans may not be readily apparent on routine radiographs and a high index of suspicion is necessary for diagnosis. Four cases of osteochondritis dissecans of the hip presenting 6--18 years after the diagnosis of Legg-Perthes disease are described. Three patients were studied by arthrography, and the findings correlated well with symptomatology.

Adult↗

PubMed1976

Posttraumatic adhesive capsulitis of the ankle: arthrographic diagnosis.

A disabling decrease in range of motion may be a sequelae of ankle trauma. This complication can result from secondary degenerative joint disease, osteochondrial fractures with loose bodies, or posttraumatic adhesive capsulitis. The latter entity is well recognized as a complication of shoulder injuries but is rarely described in other joints. Since adhesive capsulitis produces no specific plain film findings, the confirmation of this diagnosis depends on the usage of a contrast study. It is only recently that ankle arthrography has been utilized to differentiate between the various causes of a painful posttraumatic ankle. Once a diagnosis is established by arthrography, therapeutic efforts can be directed toward relieving the specific abnormality. Three cases of "frozen" ankles are presented. Two were the result of intracapsular fractures, while the third had previously sustained a severe injury of the soft tissue. The arthrographic findings included a decrease in the joint capacity, obliteration of the normal anterior and posterior recesses, and extravasation of contrast material along the needle track.

Adult↗

PubMed1976

The limbus vertebra: an anterior disc herniation demonstrated by discography.

Limbus vertebra results from an intrabody herniation of disc material. It can be mistaken for a fracture, infection, or tumor, resulting in unnecessary invasive diagnostic procedures. A case is presented in which the lesion was diagnosed by discography. Most radiologists are unfamiliar with discograms, yet they are useful because they opacify the anteriorly herniated portion of the nucleus pulposus.

Adult↗

PubMed1975

The role of the radiologist in the management of the child with a suspected bone tumor.

The radiologist's most important task in evaluating lesions of the skeleton is to recognize with a great degree of certainty the post-traumatic and the self-limiting and healing tumorous conditions which require neither biopsy nor other surgical treatment. The group of lesions that will need biopsy ranges from those that cannot be absolutely classified in the above group to frankly malignant-appearing tumors. The radiologic differential diagnosis of malignant tumors is of lesser importance because this will be performed by the pathologist. Examples are illustrated and discussed. The importance of consultation among surgeon, radiologists, and pathologist is emphasized, particularly to avoid the possibility of misinterpreting immature callus formation as ostegenic sarcoma.

Adolescent↗

PubMed1975

Arthrography of the knee.

Arthrography of the knee is becoming an integral part of the evaluation of the patient with a suspected internal derangement of the knee. The examination is relatively simple, and can be performed on out-patients with conventional radiographic equipment or a modified fluoroscope. Knee arthrography has been proven safe in a large series of patients. The technique is reliable, particularly in the diagnosis of meniscus lesions. The knee arthrogram is helpful to the orthopedic surgeon to confirm suspected abnormalities, to reveal unsuspected or multiple lesions, to exclude some conditions which could be confusing clinically, or to plan a surgical approach to the knee.

Cartilage Diseases↗

PubMed1975

Neonatal septic "dislocation" of the hip: true dislocation or pathological epiphyseal separation?

The clinical and roentgenologic appearance of septic dislocation of the hip may be caused by either a true dislocation or a pathological epiphyseal separation due to osteomyelitis. Arthrography of the hip permits differentiation in the neonate. The significance of these two anatomical possibilites is discussed in terms of follow-up and results of neonatal infections about the hip, and a case of pathological epiphyseal separation at the hip diagnosed in the neonatal period by aspiration and arthrography and followed up for 3 years is presented.

Child, Preschool↗

PubMed1972

Myelography with water soluble medium.

Explore the source record for details and available documents.

Humans↗

PubMedDate not supplied

Synovial chondromatosis of the hip. Evaluation with air computed arthrotomography.

Four patients with primary synovial chondromatosis of the hip were evaluated with air or double contrast computed arthrotomography. Air computed arthrotomography was an easy and accurate method of diagnosing the disease and delineating its anatomic extent. The use of air as a sole contrast agent allowed noncalcified chondromatous nodules to be identified. It prevented faintly calcified nodules from being obscured by positive contrast, and was a better means of assessing the narrow portions of the hip joint. Accurate diagnosis of this disease and its extent was demonstrated using air computed arthrotomography. This method provided the most complete preoperative data for the orthopaedic surgeon.

Arthrography↗

PubMedDate not supplied

Computer-assisted tomography of the knee.

The potential contributions and limitations of computer-assisted tomography of the knee have been analyzed. The knee was examined in the transaxial, sagittal, semi-sagittal and coronal planes. The positioning for obtaining intra-articular detail is outlined, and the indications are discussed. Delineation of the cruciate ligaments is remarkably clear and clinically applicable. The menisci can be demonstrated, but improvement in spacial resolution and changes in the physical construction of the scanner will be required to permit an adequate clinical evaluation.

Evaluation Studies as Topic↗