The practice of obstetrics, designed for the use of students and practitioners of medicine . Fig. 733.—Right Shoulder in the Cervix. FETAL DYSTOCIA FROM FAULTY PRESENTATION. 539 SECOND SHOULDER SCAPULA ANTERIOR, R, SCAP. sents. These positions are, therefore, usually classified with respect to the specialattitude of the shoulder. In shoulder presentation the shoulder almost invariablybecomes anterior, and presents in the cervix or vagina at an early stage of thelabor, since it is the most prominent and resistant part of the trunk. This is dueto the contractions of the uterus
The practice of obstetrics, designed for the use of students and practitioners of medicine . Fig. 733.—Right Shoulder in the Cervix. FETAL DYSTOCIA FROM FAULTY PRESENTATION. 539 SECOND SHOULDER SCAPULA ANTERIOR, R, SCAP. sents. These positions are, therefore, usually classified with respect to the specialattitude of the shoulder. In shoulder presentation the shoulder almost invariablybecomes anterior, and presents in the cervix or vagina at an early stage of thelabor, since it is the most prominent and resistant part of the trunk. This is dueto the contractions of the uterus at the beginning of labor, although it is conceiv-able, and even likely, that any of the numerous so-called trunk presentationsshould persist. Under the term shoulder presentation, then, we include all exist-ing trunk presentations, such as dorsum,lateral plane, abdomen, thorax, neck,arm, elbow, or hand. The commonestform of shoulder presentation is the dor-so-anterior, with the head to the in this connection we havea compound presentation, such as handsand feet or feet and head. In all cases ofshoulder presentation a wedge is formed,its base pointing upward, made of one ofthe long diameters of the head (4^ to 5^
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectobstetrics, bookyear1
