Frequency, etiology and practical significance of contractions of the pelvic outlet / by J. Whitridge Williams.

  • Williams, J. Whitridge (John Whitridge), 1866-1931.
Date:
1909
Catalogue details

Licence: In copyright

Credit: Frequency, etiology and practical significance of contractions of the pelvic outlet / by J. Whitridge Williams. Source: Wellcome Collection.

Provider: This material has been provided by The Royal College of Surgeons of England. The original may be consulted at The Royal College of Surgeons of England.

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    Fig. 3. Mensuration of transverse diameter with Williams’ pelvimeter. her 'previous labor, which had been conducted by a thorougly competent man, a most difficult mid-forceps operation terminated in the de- livery of a child with a fractured skull. In one of the colored women in which the outlet contraction necessitated interference (case 2502), version was performed on account of prolapse of the cord, and the after-coming head had to be perforated in order to permit its extraction through an outlet whose transverse diameter measured 7.75 cm. In the other patient (case 2891) the distance between the tubera ischii was 8 cm., and the anterior and posterior sagittal diameters measured 6, 6.5 and 9 cm. respectively, and delivery was ef- fected by low forceps. The perineum was torn in 11 cases — 38 per cent; the lacerations being of the first, second and third degrees in 4, 5 and 2 instances re- spectively. Here, just as in the typical fun- Fig. 4. Diagram showing mensuration of antero-posterior diameter by Williams’ modification of Breisky’s method.