The antibrachial interosseous membrane (IOM) is taught over an average length of 10.6cm between t... more The antibrachial interosseous membrane (IOM) is taught over an average length of 10.6cm between the diaphyses of the radius and ulna bone. It looks like a stitch with fibers running from the ulna to the radius and from proximal to distal and fibers running from distal to proximal. The central band, which is the middle part of the fibers directed from distal to proximal has mechanical properties similar to those of a ligament and act as a ligamentous structure embedded in the larger membranous complex of the IOM. The interosseous membrane has a double function: it stabilizes transversally the forearm's two bones and stabilizes longitudinally the two bones by transferring loads from the radius to the ulna. Load transmission varies according to the prono-supination position, the varus-valgus constraints on the elbow and the inclination of the wrist, making interpretation of the experimental data difficult. One should consider the forearm as a whole and the interosseous membrane with the two diaphyses should be regarded as a middle radio-ulnar joint, intercalated between the proximal and distal radio-ulnar joint. Those three articulations or links between radius and ulna act synergistically to stabilize and optimize repartition of loads. Functional loss of one of these links, and of course of more than one, will severely modify the forearm function. Essex-Lopresti lesion, which represents the functional loss of all three links, is the most destabilizing forearm lesion. Imaging of the interosseous membrane is difficult. MRI allows for static imaging of the interosseous membrane but there are often artifacts due to previous trauma or surgical procedures. Dynamic sonography helps to visualize all the lesions and will probably be part of the evaluation of every severe forearm injury. Surgical treatment depends on the gravity of the lesions of the different links. Interosseous membrane reconstruction is still the most difficult technique and most of the previously reported ligamentoplasties cannot answer all the biomechanical constraints. We describe a ligamentoplasty based on the biomechanics whose technique has been validated by cadaveric experiments. First surgical cases are promising.
This is a review of evolutive aspects in pelvic inflammatory disease (salpingitis, endometritis, ... more This is a review of evolutive aspects in pelvic inflammatory disease (salpingitis, endometritis, pyosalpinx, tubo ovarian abscess) assessed by different imaging modalities (Ultrasound, CT, MRI and hysterosalpingography).
MRI allows optimal characterization of normal and pathological soft tissues of the female pelvis ... more MRI allows optimal characterization of normal and pathological soft tissues of the female pelvis through the use of standard morphological T1W and T2W sequences, fat-suppression techniques and perfusion and diffusion weighted sequences.
The antibrachial interosseous membrane (IOM) is taught over an average length of 10.6cm between t... more The antibrachial interosseous membrane (IOM) is taught over an average length of 10.6cm between the diaphyses of the radius and ulna bone. It looks like a stitch with fibers running from the ulna to the radius and from proximal to distal and fibers running from distal to proximal. The central band, which is the middle part of the fibers directed from distal to proximal has mechanical properties similar to those of a ligament and act as a ligamentous structure embedded in the larger membranous complex of the IOM. The interosseous membrane has a double function: it stabilizes transversally the forearm's two bones and stabilizes longitudinally the two bones by transferring loads from the radius to the ulna. Load transmission varies according to the prono-supination position, the varus-valgus constraints on the elbow and the inclination of the wrist, making interpretation of the experimental data difficult. One should consider the forearm as a whole and the interosseous membrane wit...
ABSTRACT MRI allows optimal characterization of normal and pathological soft tissues of the femal... more ABSTRACT MRI allows optimal characterization of normal and pathological soft tissues of the female pelvis through the use of standard morphological T1W and T2W sequences, fat-suppression techniques and perfusion and diffusion weighted sequences.
... M. Bazot 1 , Corresponding Author Contact Information , I. Thomassin-Naggara 1 , C. Lafont 1 ... more ... M. Bazot 1 , Corresponding Author Contact Information , I. Thomassin-Naggara 1 , C. Lafont 1 , J. Nassar-Slaba 2 , A. Cortez 1 , E. Daraï 1 , C. Marsault 1. 1, Paris – France. 2, Beyrouth – Liban. Available online 29 May 2009. ... Decrire les avantages et limites de la TOM. ...
To prospectively evaluate the local efficacy of radiofrequency (RF) ablation of lung neoplasms, w... more To prospectively evaluate the local efficacy of radiofrequency (RF) ablation of lung neoplasms, with a minimum follow-up period of 1 year. Sixty patients (34 men and 26 women; age range, 27-81 years; mean age, 66 years) with 100 lung tumors gave written informed consent to be enrolled in a prospective study that was approved by the local ethics committee. There were five or fewer tumors per patient, each with a diameter of less than 40 mm (mean +/- standard deviation, 17 mm +/- 10). RF ablation was performed in tumors by using computed tomographic (CT) guidance. Follow-up CT studies were obtained within 48 hours after treatment and at 2, 4, 6, 9, and 12 months thereafter to evaluate treatment outcome and complications. Lung spirometry measurements were obtained before and 4 weeks after RF ablation. Ninety-seven of 100 targeted tumors were treated and required 163 RF ablations (1.68 per tumor), each lasting 14 minutes +/- 8, delivered during 74 procedures. The 18-month estimated rate of incomplete local treatment at CT was 7% (95% confidence interval: 3%, 14%) per tumor and 12% (95% confidence interval: 5%, 23%) per patient. An ablation area at least four times larger than the initial tumor was predictive of complete ablation treatment (P = .02). There was a trend toward better efficacy for tumors smaller than 2 cm in diameter (P = .066). Overall survival and lung disease-free survival at 18 months were 71% and 34%, respectively. The main adverse event was a pneumothorax, which occurred in 54% of procedures, but a chest tube was required in only 9% of the procedures. No modification of respiratory function was found when spirometry measurements obtained before and within 2 months after RF ablation were compared (P = .51). RF ablation has a high local efficacy and is well tolerated.
The antibrachial interosseous membrane (IOM) is taught over an average length of 10.6cm between t... more The antibrachial interosseous membrane (IOM) is taught over an average length of 10.6cm between the diaphyses of the radius and ulna bone. It looks like a stitch with fibers running from the ulna to the radius and from proximal to distal and fibers running from distal to proximal. The central band, which is the middle part of the fibers directed from distal to proximal has mechanical properties similar to those of a ligament and act as a ligamentous structure embedded in the larger membranous complex of the IOM. The interosseous membrane has a double function: it stabilizes transversally the forearm's two bones and stabilizes longitudinally the two bones by transferring loads from the radius to the ulna. Load transmission varies according to the prono-supination position, the varus-valgus constraints on the elbow and the inclination of the wrist, making interpretation of the experimental data difficult. One should consider the forearm as a whole and the interosseous membrane with the two diaphyses should be regarded as a middle radio-ulnar joint, intercalated between the proximal and distal radio-ulnar joint. Those three articulations or links between radius and ulna act synergistically to stabilize and optimize repartition of loads. Functional loss of one of these links, and of course of more than one, will severely modify the forearm function. Essex-Lopresti lesion, which represents the functional loss of all three links, is the most destabilizing forearm lesion. Imaging of the interosseous membrane is difficult. MRI allows for static imaging of the interosseous membrane but there are often artifacts due to previous trauma or surgical procedures. Dynamic sonography helps to visualize all the lesions and will probably be part of the evaluation of every severe forearm injury. Surgical treatment depends on the gravity of the lesions of the different links. Interosseous membrane reconstruction is still the most difficult technique and most of the previously reported ligamentoplasties cannot answer all the biomechanical constraints. We describe a ligamentoplasty based on the biomechanics whose technique has been validated by cadaveric experiments. First surgical cases are promising.
This is a review of evolutive aspects in pelvic inflammatory disease (salpingitis, endometritis, ... more This is a review of evolutive aspects in pelvic inflammatory disease (salpingitis, endometritis, pyosalpinx, tubo ovarian abscess) assessed by different imaging modalities (Ultrasound, CT, MRI and hysterosalpingography).
MRI allows optimal characterization of normal and pathological soft tissues of the female pelvis ... more MRI allows optimal characterization of normal and pathological soft tissues of the female pelvis through the use of standard morphological T1W and T2W sequences, fat-suppression techniques and perfusion and diffusion weighted sequences.
The antibrachial interosseous membrane (IOM) is taught over an average length of 10.6cm between t... more The antibrachial interosseous membrane (IOM) is taught over an average length of 10.6cm between the diaphyses of the radius and ulna bone. It looks like a stitch with fibers running from the ulna to the radius and from proximal to distal and fibers running from distal to proximal. The central band, which is the middle part of the fibers directed from distal to proximal has mechanical properties similar to those of a ligament and act as a ligamentous structure embedded in the larger membranous complex of the IOM. The interosseous membrane has a double function: it stabilizes transversally the forearm's two bones and stabilizes longitudinally the two bones by transferring loads from the radius to the ulna. Load transmission varies according to the prono-supination position, the varus-valgus constraints on the elbow and the inclination of the wrist, making interpretation of the experimental data difficult. One should consider the forearm as a whole and the interosseous membrane wit...
ABSTRACT MRI allows optimal characterization of normal and pathological soft tissues of the femal... more ABSTRACT MRI allows optimal characterization of normal and pathological soft tissues of the female pelvis through the use of standard morphological T1W and T2W sequences, fat-suppression techniques and perfusion and diffusion weighted sequences.
... M. Bazot 1 , Corresponding Author Contact Information , I. Thomassin-Naggara 1 , C. Lafont 1 ... more ... M. Bazot 1 , Corresponding Author Contact Information , I. Thomassin-Naggara 1 , C. Lafont 1 , J. Nassar-Slaba 2 , A. Cortez 1 , E. Daraï 1 , C. Marsault 1. 1, Paris – France. 2, Beyrouth – Liban. Available online 29 May 2009. ... Decrire les avantages et limites de la TOM. ...
To prospectively evaluate the local efficacy of radiofrequency (RF) ablation of lung neoplasms, w... more To prospectively evaluate the local efficacy of radiofrequency (RF) ablation of lung neoplasms, with a minimum follow-up period of 1 year. Sixty patients (34 men and 26 women; age range, 27-81 years; mean age, 66 years) with 100 lung tumors gave written informed consent to be enrolled in a prospective study that was approved by the local ethics committee. There were five or fewer tumors per patient, each with a diameter of less than 40 mm (mean +/- standard deviation, 17 mm +/- 10). RF ablation was performed in tumors by using computed tomographic (CT) guidance. Follow-up CT studies were obtained within 48 hours after treatment and at 2, 4, 6, 9, and 12 months thereafter to evaluate treatment outcome and complications. Lung spirometry measurements were obtained before and 4 weeks after RF ablation. Ninety-seven of 100 targeted tumors were treated and required 163 RF ablations (1.68 per tumor), each lasting 14 minutes +/- 8, delivered during 74 procedures. The 18-month estimated rate of incomplete local treatment at CT was 7% (95% confidence interval: 3%, 14%) per tumor and 12% (95% confidence interval: 5%, 23%) per patient. An ablation area at least four times larger than the initial tumor was predictive of complete ablation treatment (P = .02). There was a trend toward better efficacy for tumors smaller than 2 cm in diameter (P = .066). Overall survival and lung disease-free survival at 18 months were 71% and 34%, respectively. The main adverse event was a pneumothorax, which occurred in 54% of procedures, but a chest tube was required in only 9% of the procedures. No modification of respiratory function was found when spirometry measurements obtained before and within 2 months after RF ablation were compared (P = .51). RF ablation has a high local efficacy and is well tolerated.
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