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Biomedical subjects

J Hureau

Publications and source records attributed to J Hureau.

At least 109 records · Page 6Linked to original sources
PubMed1976

[The oto-meniscal relationship of temporo-mandibular joint in the new-born man (author's transl)].

Although they are anatomically immature at the time of birth, the temporo-mandibular joints are able to ensure efficient suction due to the branchial blastema interposed between the two articular nuclei. This conjunctive formation is the principal factor in the constitution of the meniscus and its frena, the articular surfaces, the capsule and the ligaments. This constitutes not only an embryological but also a functional entity. The joint runs the risk of paying heavily for this functionnal availability, by its relationship with the ear-drum which is a potentially infectious cavity. In fact, at birth there is still evidence of the original branchial continuum between the unknit tympanal and squamosal in the shape of the posterior meniscal frenum, the conjunctivo-vascular isthmus which puts the vascularization of the mucosa of the ear-drum in communication with the very rich vascularization of the neonatal temporo-mandibular joint. Therefore, 1/3 of the so-called congenital temporo-mandibular ankyloses, apparently without cause, could probably be explained by the otomeniscal relationship existing in the new-born baby and continuing during the first few months of life in the form of a conjunctivo-vascular link.

Cartilage, Articular↗
PubMed1975

[The dynamic complex of the temporomandibular meniscus].

The existence of meniscocapsular insertions of the temporal, masseter and external pterygoid muscles complicates the scheme of capsulo-meniscal dynamics. Our findings do indeed agree with those of DUBECQ (Bordeaux); but we think that the insertions of the masseter and the temporal are not only fine tracts. In the embryon, the meniscus is the preglossal mekelian conjunctival blastema, which receives the 3 masticatory muscles on its anterior border. In the adult, menisco-capsulo-muscular relationships are not modified; inspite of considerable functional adaptation of the articulation to varied stimuli, the menisco-capsular apparatus seems to be triply controlled by 3 musculo-masticatory bands, owing to the anterior premeniscal tendinous lamina, in histological continuity with the meniscus and rich in corpuscles of deep sensitivity. The resultant of the tridirectional muscular traction of the masseter, external pterygoid and temporal is a force in the postero-anterior oblique direction, downwards and forwards, which allows the meniscus to stretch, as was shown by Pr Delaire, and thus to have a sub-temporal sliding pathway of 8 to 12 mm. The three muscle bundles external pterygoid, temporal and masseter constitute the dynamic complex of the meniscus.

Cartilage, Articular↗
PubMed1975

[Masticatory sysarcosis. Significance in maxillofacial surgery and pathology].

The masticatory muscles and the vertical ramus move in a closed aponeurotic lodge; sliding spaces containing cellulo-adipose formations, veritable sysarcoses, are situated between the muscles of mastication as well as between these muscles and their osteo-aponeurotic covering. Sysarcoses are embryological, anatomical and functional units. Bichat's ball must be considered as being the antero-inferior pole of these cellulo-adipose containing spaces. Apart from the mechanical role of these spaces, their value in pathology and in traumatological surgery must again be pointed out, because firstly they are the pathways of approach and fixation of fractures of the zygomamalar region. They are also of great value in reparatory surgery as knowledge of the vascularization of the fat in these spaces enables the making of flaps of fat in the surrounding area.

Adipose Tissue↗