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This monograph is a detailed study of the assimilation pelvis encountered in 212 patients in the University Clinics for Women at Kiel and Leipzig. The morphology, fetal and postnatal development of this pelvic type are considered. Its clinical significance in labor is discussed. Spontaneous deliveries occurred in 51.5 per cent of these women, forceps deliveries in 18.4 per cent, craniotomy in 4.2 per cent, version and extraction in 3.7 per cent; 22.2 per cent of the deliveries were by cesarean section. Thus, although the author has been conservative in the management of the labors, more than one in five had to be terminated abdominally.
The book is well written. It contains many excellent illustrations and roentgenograms. The bibliography is limited to German references with but one exception. It is a noteworthy contribution on this interesting subject.
Das lange Becken: Geburtshilfliche Studie über das Assimilationsbecken. JAMA. 1950;143(1):145. doi:10.1001/jama.1950.02910360147027