Triradiate pelvis is seen in :
Ans. is a i.e. Rickets Contracted pelvis is alteration in size and / or shape of pelvis of sufficient degree so as to alter the normal mechanism of labour in an average size baby. It can be a result of malnutrition, diseases or injuries affecting the bone of pelvis or it can be due to any developmental defect.
Rickets
Chondrodystrophy
Osteoporosis
Hyperparathyroidism