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Biomedical subjects

L A Gilula

Publications and source records attributed to L A Gilula.

259 records · Page 15Linked to original sources
PubMedDate not supplied

Computed tomography of the normal soft tissues of the wrist.

Computed tomography and sectional radiography and photography were performed on eight cadaveric wrist specimens in order to define the soft tissue structures of the normal wrist. Three specific levels were analyzed in detail: the levels of the distal radioulnar joint, of the pisotriquetral joint, and of the hook of the hamate. All soft tissues, with the exception of arteries and veins, were well demonstrated with computed tomography. In particular, the contents of both Guyon's canal and the carpal tunnel could be delineated. The position of the extensor carpi ulnaris tendon and sheath could also be evaluated. Contrast opacification of the flexor tendon sheaths and palmar synovial sacs did not contribute to the analysis. Computed tomography appears to be an important imaging modality in the evaluation of significant clinical problems, including the carpal tunnel and ulnar tunnel syndromes and subluxation of the extensor carpi ulnaris tendon.

Humans↗
PubMedDate not supplied

Volumetric 3-D imaging of computerized tomography scans.

Contiguous transaxial high resolution CT scans of more than 100 patients with craniofacial deformities and orthopedic disorders were obtained. The CT scan examinations were used diagnostically in determining the need for surgery and for planning therapy. The serial section data was reconstructed in a three-dimensional form with surface and transparent volumetric computer graphics processing techniques. Real time sequences showing the presence of internal abnormalities in these patients were produced and recorded on video tape. This study demonstrates the feasibility and technical requirements of three-dimensional volumetric visualization for diagnostic evaluation of patients with craniofacial and orthopedic disorders.

Adult↗
PubMedDate not supplied

Radiocarpal fracture--dislocation.

Radiocarpal fracture-dislocation was associated with fracture of the distal articular surface of the radius in five patients (six extremities). Closed manipulation resulted in satisfactory reduction of both the dorsal dislocation of the carpus on the distal radius and displaced articular fracture fragment(s) in two of four extremities. In four extremities, open reduction was necessary as the only means of satisfactorily managing this severe wrist injury. Direct visualization through a dorsolateral incision alone allows for maximal restoration of the often extensive bony injury of the dorsal articular surface of the radius. A volar incision is required for anatomic reduction of the carpus, and median reconstitution of the radiocarpal ligament nerve decompression. Functional results were generally satisfactory; however, radiographic degenerative changes appearing early portend traumatic arthritis as a sequela of this complex injury.

Adult↗
PubMedDate not supplied

Importance of bidirectional arterial flow in dialysis fistula construction.

The normal direction of blood flow in end of cephalic vein to side of radial artery arteriovenous dialysis fistulas in the wrist was antegrade in the proximal arterial limb and retrograde through the distal arterial limb. There were no instances of arterial insufficiency in the hand due to a steal phenomenon. These findings support the surgical construction of end of vein to side of artery fistulas.

Arteriovenous Shunt, Surgical↗
PubMedDate not supplied

Roentgenographic diagnosis of the painful wrist.

The painful wrist as a result of an injury to the carpal bones, ligaments, or joint capsule often presents a diagnostic challenge to the physician. In those cases where a thorough clinical examination does not explain the cause of the patient's symptomatology, a systematic roentgenographic evaluation of the painful wrist may result in early diagnosis and appropriate definitive treatment of the underlying disorder. This paper proposes an approach that makes use of the various available roentgenographic modalities.

Carpal Bones↗
PubMedDate not supplied

Plain film approach to tumours and tumour-like conditions of bone.

Despite the availability of modern imaging techniques, the plain film is still the single most useful imaging method for evaluating tumours and tumour-like conditions of bone. Systematic assessment of the radiographic features of a suspected bone tumour will usually provide an indication of its relative aggressiveness or non-aggressiveness.

Bone Neoplasms↗