Preoperative counting of thoracic and lumbar vertebrae is crucial in adolescent idiopathic scoliosis (AIS) due to reported anatomical variations and potential surgical site misidentification. This study investigated characteristics associated with the vertebral number variations AIS, particularly focusing on rib...
In vertebrates, there are multiple spine phenomena in which the number of thoracic vertebrae and lumbar vertebrae of certain individuals is greater than that of other individuals of the same species, and the number of thoracic vertebrae can determine the number of rib pairs [4,5]. Increasing ...
Which is the longest bone in a human being's body? How do you "easily" distinguish cervical from thoracic from lumbar vertebrae? Assume you have a single bone to identify. These bones came from a mass grave of adults and children. Does a human bein...
In mammals, the vertebral formula shows developmental constraint [1]. The number of cervical vertebrae is fixed at 7, and the total number of thoracic and lumbar vertebrae tends to be 19, although the specific counts vary among species. For example, in the Monotremata, Marsupialia, Lagomorpha...
Mayer-Rokitansky-Küster-Hauser (MRKH) syndrome is a rare disease, characterised by the aplasia of vagina and uterus in women with a 46,XX karyotype. Most cases are sporadic, but familial recurrence has also been described. Herein, we investigated an Italian cohort of 36 unrelated MRKH patients...
close to the QTL affecting carcass length on SSC1 was discovered in the Meishan × Gottingen cross population4. Furthermore, two additive quantitative trait loci (QTLs) on chromosome 1 and chromosome 7 were identified for the number of vertebrae using nine F2 families, including European ...
and 14 of which the QTL on SSC9 and SSC14 are the first ones to be reported on these chromosomes. The confirmed major QTL found on SSC7 contains the candidate geneVertninwhich has been reported to control the number of thoracic vertebrae. Interestingly, also the two other regions on SSC12...
GWAS map the major QTL for the number of thoracic vertebrae to SSC7.Yin FanYuyun XingZhiyan ZhangHuashui AiZixuan OuyangJing OuyangMing YangPinghua LiYijie ChenJun Gao
The Journal of Bone and Joint SurgeryIbrahim DA, Myung KS, Skaggs DL. Ten percent of patients with adolescent idiopathic scoliosis have variations in the number of thoracic or lumbar vertebrae. J Bone Joint Surg Am. 2013;95:828-33.Ibrahim DA, Myung KS, Skaggs DL, et al. Ten percent...
Results: Ten percent of the patients (thirty-eight) had an atypical number of vertebrae in the thoracic and/or lumbar spine. Twenty-one patients (5.8%) had an atypical number of thoracic vertebrae, with fourteen having eleven thoracic vertebrae and seven patients having thirteen. Twenty-four ...