Lateral bi-ischiatic distance
Lateral bi-ischiatic distance
- Acronym: LBID
Definition
The lateral bi-ischiatic distance is a pelvic measurement used to assess the anatomy of the pelvic area, particularly in the context of obstructive dystocia and constipation. It is etermined from a ventrodorsal radiograph or multiplanar reconstructed CT images of the pelvis.
The lateral bi-ischiatic distance is the distance between the most lateral aspect of the two ischiatic tuberosities.
The mean value reported in the literature for the lateral bi-ischiatic distance are :
In Boston terrier with normal parturition (7.5 +/- 1.1 kg) and dystocia (7.5 +/- 0.8 kg) respectively : 7.2 +/- 0.15 cm and 7.3 +/- 0.17 cm
In English bulldogs (range 18.1 to 30.8 kg, mean 23.56 kg) from both genders : 8.7+/- 0.4 cm
In non-brachycephalic dogs of various breeds and crossbred dogs (range 18 to 31.1 kg, mean 26.62 kg) from both genders (18-30 kg) : 11.3 +/- 0.9 cm
References
Eneroth et al. (1999). Radiographic pelvimetry for assessment of dystocia in bitches: a clinical studv in two terrier breeds. Journal of Small Anmal Practice. J Small Anim Pract;40.257-264. DOI: 10.1111/j.1748-5827.1999.tb03076.x
Dobak, Tetyda P.; Voorhout, George; Vernooij, Johannes C.M.; Boroffka, Susanne A.E.B. (2018). Computed tomographic pelvimetry in English bulldogs. Theriogenology, (), S0093691X18302437–. doi:10.1016/j.theriogenology.2018.05.025
