[Value of CT bursography in the evaluation of rotator cuff tears].

Purpose: To describe the technique and assess the value of subacromial CT bursography in patients with partial surface tear of the rotator cuff tendon.

Materials And Methods: 15 patients with shoulder pain suggestive of tendinopathy or tear of the rotator cuff were evaluated with subacromial CT bursography.

Results: Subacromial CT bursography was normal in 4 patients.

Assessment of osteosarcoma response to neoadjuvant chemotherapy: comparative usefulness of dynamic gadolinium-enhanced spin-echo magnetic resonance imaging and technetium-99m skeletal angioscintigraphy.

The aim of this work was to study and compare the usefulness of dynamic contrast-enhanced spin-echo MR imaging with high temporal resolution hydroxymethylene diphosphonate technetium-99 m skeletal angioscintigraphy in predicting the osteosarcoma histological response to neoadjuvant chemotherapy. Twelve patients with resectable osteosarcoma were prospectively monitored with dynamic MR imaging and skeletal scintigraphy before start of neoadjuvant chemotherapy, after two cycles of therapy and before surgery. Neoplasm signal intensity and activity intensity were plotted against time, and slopes were calculated for percentage increase over baseline values in the first minute.

Evaluation of the 'Lequesne's false profile' of the hip in patients with hip osteoarthritis.

Objectives: To compare the value of Lequesne's false profile (LFP) radiograph of the hip and antero-posterior (AP) X-ray of the pelvis in the assessment of joint space narrowing (JSN) and osteophyte (Ost) in patients with hip osteoarthritis (OA).

Methods: AP and LFP radiographs of the hip were performed using a standardized method in 50 consecutive patients with hip OA. JSN and Ost were graded at different days by a single observer blinded for patients identity, using a six point scale (JSN:0-5) and a four point scale (Ost:0-3) from AP and LFP respectively.

Quantitative evaluation of joint space width in femorotibial osteoarthritis: comparison of three radiographic views.

Objective: Quantitative evaluation of radiographic methods proposed to improve the detection of joint space narrowing (JSN) in femorotibial osteoarthritis (OA).

Methods: Thirty-two consecutive patients with knee OA and five normal controls had three different weight-bearing radiographs of the knee: (1) anteroposterior film of both knees in full extension (extended knees), (2) anteroposterior film of one knee in extension while the patient was standing on the homolateral foot (standing on homolateral foot), (3) posteroanterior film of both knees flexed at 30 degrees (schuss view). Joint space was analyzed blind using both an evaluation of JSN with a six-grade scale (JSN score) and an image analyser computer measurement of the mean joint space width (mean JSW).

[Chronic external instability of the ankle. Contribution of dynamic radiographies, x-ray computed tomography and x-ray computed tomographic arthrography].

We retrospectively evaluated the anterior talo fibular ligament and the tarsal sinus of 17 patients who had complained of chronic ankle external instability. This study based on both surgery and CT-arthrography findings shows the pathologic or normal aspects of the talo-fibular anterior ligament (normal, lax, fibrosis residue, ruptured). It confirms the good anatomic analysis of the tarsal sinus, in particular the anterior talo-calcaneal interosseous ligament and the search for fibrosis.

Assessment of the bone mineral density in the lumbar vertebrae of newborns by quantitative computed tomography.

Objective: To assess the true mineral density (BMD, in g/cm3) of the lumbar spine in newborns.

Design And Patients: A postmortem analysis of five infants with gestational ages ranging from 35 to 40 weeks, and birth weights from 2765 to 3200 g, was conducted using dual-energy quantitative computed tomography (QCT; Siemens Somatom DR). A 2 or 4 mm thick slice was obtained for each lumbar vertebra from L1 to L4.

[Synovial cyst involving isolated paralysis of the infraspinatus muscle. Ultrasonographic diagnosis and MRI].

A case of entrapment neuropathy of the inferior branch of the suprascapular nerve in the spinoglenoid notch is described. Ultrasonography and MRI examination showed a ganglion cyst in the spinoglenoid notch with an extension to the glenohumeral joint. The lesion was confirmed by surgical and pathological examination.

[Primary amyloidosis of bones. MRI aspects].

Primary systemic amyloidosis is a rare cause of vertebralcollapse. We describe a patient who presented multiplecollapsed vertebrae. Magnetic resonance imaging (MRI) demonstrated a diffuse bone marrow abnormality.

[Preliminary and multidisciplinary study of three Coptic mummies of the Testut-Latarjet museum at Lyon].

In 1901 Albert Gayet raked up from Antinoe three mummies exhibited to day at the Anatomy Museum of Lyon. The study of the three mummies was made in detail as to their dress, anthropometric and scannographic findings. The clothes were characteristic of coptic civilization.

[MRI of the rotator cuff: evaluation of a new symptomatologic classification].

The different classifications use for the rotator cuff pathology seem to be incomplete. We propose a new classification with many advantages: 1) Differentiate the tendinopathy between less serious (grade 2A) and serious (grade 2B). 2) Recognize the intra-tendinous cleavage of the infra-spinatus associated with complete tear of the supra-spinatus.

[Results of sutures of the internal meniscus associated with reconstruction of the anterior cruciate ligament in chronic knee joint instability. Apropos of 42 cases, 30 of them controlled by arthrography].

Purpose Of The Study: Most authors agree on the importance of medial meniscus preservation in the case of A.C.L.

[Imaging of spinal osteochondroma of neurologic nature. Apropos of 7 cases].

In this work, on 7 cases of spinal neurological, the authors analyse the use of imaging in the diagnosis and pretherapeutic approach, as well as for the post-operative follow-up. They insist mostly on the value of tomographic imaging methods, in particular: computed tomography, which allows the study of mineral structures, and determines the site of implant pedicle; magnetic resonance imaging important to precise the connections between tumor and spinal canal contents. They prove that other imaging methods still possess some interest, particularly standard X-ray, useful in estimating the characteristics of exostosis and identifying spinal lesions.

Case report 801: Osteoid osteoma of the coccyx.

In summary, a typical osteoid osteoma in the coccyx in a 13-year-old boy has been presented-a unique location. The clinical, radiological, and pathological aspects of osteoma are summarized. The relationship of osteoid osteoma to osteoblastoma is stressed; it is also stressed that the occurrence of osteoid osteoma in the coccyx is most unusual.

[Measurement of the hip joint space using automatic digital image analysis].

Joint surface area (JSA) and mean joint space width (MJSW) at the hip were measured using a ICMS-Techline computer program to analyze digitalised frontal weight-bearing roentgenograms of the pelvis. With this technique, the portion of joint space studied is always the same in a given patient and is enclosed within an acute ECS angle whose apex C is the center of the head of the femur and whose ends E and S are the lateral rim of the acetabulum and the highest point of the homolateral sacral wing respectively. ECS varies across individuals but remains constant in a given hip.

MRI and CT in a case of pituitary abscess.

We report the case of a woman admitted for hypopituitarism of sudden onset, in whom conventional radiography, CT and MRT suggested a pituitary tumour with supra- and intrasellar extensions. The surgical findings and the clinical course under antibiotic therapy transformed this diagnosis into one of pituitary abscess by a pyogenic micro-organism. Pituitary abscess is an exceptional lesion.

Haemorrhagic complications of intracerebral cavernomas: value of MRI.

The authors report a retrospective series of 10 cases of intracerebral haematomas consecutive to cavernomas and studied with MRI. The factors that led to the MRI study were the patients' age and clinical history, the site of the haematoma, the persistence of CT images and a negative arteriography. MRI showed that the haematoma was in contact with the cavernoma in 4 cases and at a distance from it in one case.

[A rare bone abnormality: intra-bone synovial cyst. Apropos of a case].

One case of intraosseous ganglion is reported and compared with a review of the literature. The clinical findings, the physiopathological and radiological patterns are discussed as well as the differential diagnosis.

[2 cases of neurinoma of the mastoidal portion of the facial nerve: diagnostic contribution of MRI].

The authors report 2 cases of patients presenting a neurinoma of the 3rd portion of the facial nerve. In the 2 cases, the surgical observations correlated perfectly with the results of the radiological examinations (scanner and MRI). The clinical and paraclinical presentation of this rare tumor is recalled, emphasizing the additional contribution of imaging techniques: the scanner is indeed indispensable for evaluating the osseous destructions on the intrapetrous trajectory of the facial nerve, whereas MRI (in particular with injections of gadolinium) evaluates the exact tumoral limits as best as possible.

[Morphological types of the lower limbs in femoro-patellar disequilibrium. Analysis in 3 planes].

The authors describe the relationship between the variations in the morphology of the lower limbs in case, torsional variances in femur and tibia, genu vara and genu valga with the instability of the patella.