PubMed Health⌕ Search

Biomedical subjects

F Gires

Publications and source records attributed to F Gires.

At least 19 recordsLinked to original sources
PubMed1996

CT scans and arthro-CT scans.

The study of the cartilage is relatively easy with modern imaging. If the interpretation of MRI cartilage remains difficult arthro-CT images are easy to obtain. Arthro-CT is much preferable to simple arthrography. These two steps are in fact complementary: the global study of the joint is made with arthrography while the accurate assessment of cartilage is obtained with thin CT native slices acquired in an adapted plane and completed with reformatted images. The detection of small lesions, such as a faint thinning of the cartilage, or a focal fissure is only possible with a long and meticulous examination. The pathological value of the images still depends on the clinical examination, because of the high incidence of asymptomatic chondromalacia in elderly patients. The assessment of the cartilage overlying osteochondritis or osteochondral fractures is of particular clinical interest. The detection of post-traumatic cartilaginous lesions may also be valuable in medicolegal problems.

Arthrography↗
PubMed1992

Facet joint block for low back pain: identifying predictors of a good response.

This preliminary study was conducted to identify a facet joint syndrome in low back pain. Ninety maneuvers and symptoms were compared between patients relieved (responders) and those unrelieved (nonresponders) after intraarticular blocks. Fifty-one patients participated in the study; 11 were excluded from evaluation because of unsuccessful injection into the joints as planned. Of the 40 patients included, 20 had four joints anesthetized, 16 had two joints anesthetized, and four had three joints anesthetized. Twenty-two were responders, 17 of whom had more than 90% relief of pain. Only a few variables were more frequent in the responder group: older age, absence of exacerbation by coughing, relief when recumbent, absence of exacerbation by forward flexion and when raising from this flexion, absence of worsening by hyperextension, and extension-rotation. When four of these seven variables were present in the same patient, sensitivity was 81.8% and specificity 77.8%, but this discriminant power must be evaluated in a new population.

Adult↗
PubMed1991

[A criterion of validity of the x-ray computed tomographic measurement of femoral neck anteversion].

A wrong patient's position on the CT scan table may lead to mistakes in the measurement of femoral neck anteversion. We present an experimental demonstration using a wood manufactured femur model. If the slices are performed with flexion of the thigh, the measurement is lower than the true value. Thus, to check the measurement on the picture of added slices, it is necessary to have a superimposition of the pictures of the upper part and the lower part of the femur. Otherwise, the measure is wrong and the mistake depends of the direction of the shifting: --if the lower part of the femur is higher, the anteversion measure is lower than expected. --if the lower part of the femur is lower, the anteversion measure is higher.

Femur Neck↗
PubMed1988

[Unilateral isthmic lysis in x-ray computed tomography].

Condensing pediculolaminar hypertrophy of mechanical origin is known as "Dahu's sign". Dahu's sign corresponds to hypertrophy of the vertebral hemi-arch found by CT scan and leads to suspicion of controlateral lysis of the isthmus. It is the CT scan equivalent of vertebral "anisocorism" by conventional radiology.

Adult↗
PubMed1988

[Lumboradiculalgia and calcified disk hernia].

In the context of a particular case report, the authors recall that calcified discs may be responsible for root pain, hyperalgic sciatica or lumbago. In the present case, the pain responded to intra-discal injection of long-acting corticosteroids. The authors compare this case to 10 other personal cases and 16 cases reported in the literature.

Calcinosis↗
PubMed1988

[The labrum acetabular. Apropos of 121 arthrographies of the hip in adults].

The authors report a retrospective study of 121 arthrographies of the hip in adults, excluding prostheses. The study was based on normal pathological values for angular measurement of the labrum acetabular: ECB angle (mean value: 15 degrees) enlarging the lateral cover of the head of the femur, VCE angle (mean value: 30 degrees) and a mean global VCB angle of 45 degrees. A certain equilibrium was observed between the covering capacity of the acetabulum and the covering capacity of the labrum acetabular. Numerous anomalies of the labrum were observed, including fissures in about 30% of cases. A large number of fissures were associated with other degenerative anomalies of the hip joint. A few fissures resulting in detachment of a strip of labrum were isolated and the possibility of their traumatic etiology and their pathogenic nature in clinical symptoms are discussed.

Acetabulum↗
PubMed1987

[Desmoid fibroma of the abdominal wall. Apropos of a case].

A case of desmoid fibroma of anterior abdominal wall, an exceptional benign tumor, is reported. Based on results of CT scan imaging of this lesion, differential diagnosis of other expansive processes of abdominal wall are discussed. This benign tumor is a potentially serious lesion due to its infiltrating character and the high incidence of recurrence. The need for total surgical excision is emphasized.

Abdominal Muscles↗
PubMed1987

[Spontaneous fracture of the sternum].

Spontaneous fractures of the sternum are unusual. They can simulate cardio-thoracic emergencies. A case of stress fracture of the sternum and of the femoral neck in a patient with corticosteroid induced osteoporosis is reported and the peculiar value of CT assessing the absence of tumoral mass is emphasized.

Female↗