Results 81 to 90 of about 245,459 (198)

Human evolution and the obstetrical dilemma: The pelvic floor hypothesis

The Anatomical Record, EarlyView.
Abstract Human childbirth is mechanically difficult because a large‐headed, broad‐shouldered fetus must pass through a comparatively narrow, twisted bony birth canal. Traditional explanations of this “obstetrical dilemma” emphasize the role of bipedal locomotion in inhibiting the evolution of a wider, more spacious pelvis.
Barbara Fischer, Ekaterina Stansfield
wiley   +1 more source

Osteology of the pectoral girdle and forelimb of Siriusgnathus niemeyerorum, a Late Triassic traversodontid cynodont from Brazil

The Anatomical Record, EarlyView.
Abstract Traversodontids are non‐mammaliaform cynodonts, herbivorous to omnivorous, that lived during the Triassic. In the Late Triassic, some members of this group increased in body size relative to other cynodont lineages and evolved postcranial adaptations associated with locomotion.
Jhonata H. A. Martins, Leonardo Kerber
wiley   +1 more source

Correction of Pelvic Tilt and Pelvic Rotation in Cup Measurement after THA – An Experimental Study

, 2017
Purpose Accurate assessment of cup orientation on postoperative pelvic radiographs is essential for evaluating outcome after THA. Here, we present a novel method for correcting measurement inaccuracies due to pelvic tilt and rotation.
Grifka, Joachim, Joachim Grifka, Markus Weber, Benjamin Craiovan, Renkawitz, Tobias, Weber, Markus, Timo Julian Schwarz, Craiovan, Benjamin, Dornia, Christian, Tobias Renkawitz, Schwarz, Timo, Worlicek, Michael, Christian Dornia, Michael Worlicek   +13 more
core   +1 more source

Pelvic breadth and juvenile locomotor energetics: Implications for the obstetrical dilemma hypothesis across human growth in past and present humans

The Anatomical Record, EarlyView.
Abstract The obstetrical dilemma hypothesis (ODH) proposes an evolutionary trade‐off between obstetric requirements and locomotor performance. However, whether external pelvic breadth measures influence walking energetics during human growth remains poorly understood.
Guillermo Zorrilla‐Revilla, Olalla Prado‐Nóvoa, Kevin P. Davy, José Miguel Carretero, Rebeca García‐González   +4 more
wiley   +1 more source

Estimating Pelvic Tilt in Post-Cesarean Women After the Puerperium: A Comparative Study With Non-Pregnant Women

Clinical and Experimental Obstetrics & Gynecology
Background: Passing from the first to the third trimester of pregnancy is correlated with a significant increase in pelvic anterior tilting that relates to lumbopelvic morbidities.
Rehab S. Mamoon, Mohammad Auais, Mohammed A.M. Sarhan, Amel M. Yousef, Abeer A. Mohammed, Azza S.A. Khalil, Hoda M. Zakaria, Mohamed G. Ali   +7 more
doaj   +1 more source

Evaluation of spinopelvic balance among patients undergoing surgical treatment for lumbar disk hernia

Revista Brasileira de Ortopedia, 2014
OBJECTIVE: to evaluate spinopelvic balance using the pelvic incidence, sacral slope and pelvic tilt among patients with lumbar disk hernias who underwent surgical treatment.METHODS: thirty patients at the spinal services of Hospital Santa Casa de ...
Rafael de Paiva Oliveira, Vinícius Gonçalves Coimbra, Yuri Lubiana Chisté, José Lucas Batista Junior, Charbel Jacob Junior, Igor Machado Cardoso, Rodrigo Rezende   +6 more
doaj   +1 more source

Anatomy and variation in the paraphyletic Mosasaurus lemonnieri assemblage from the Craie phosphatée de ciply, Belgium

The Anatomical Record, EarlyView.
Abstract Nineteenth century excavations of the Ciply‐Malogne Phosphatic Chalk Formation in Hainaut, Belgium, yielded over 50 partial mosasaur skeletons, the majority of which were referred to the species Mosasaurus lemonnieri Dollo, 1889. In the years since, this taxon has experienced a complicated taxonomic history, and its exceptional hypodigm has ...
Henry S. Sharpe, Hallie P. Street‐Sampson, Takuya Konishi, Michael W. Caldwell   +3 more
wiley   +1 more source

The role of pelvic coronal parameters in determining sagittal balance: a prospective radiographic analysis of pelvic spinopelvic alignment in Chinese asymptomatic Han adolescents

Frontiers in Pediatrics
BackgroundAdolescent idiopathic scoliosis (AIS) is a complex three-dimensional spinal deformity where sagittal alignment significantly influences clinical outcomes.
Hao Qi, ZengHui Zhao, Feiyu Zu, Chenchen Wang, Chenxi Wang, Zuzhuo Zhang, Siyuan Wang, Shuo Yang, Haiyun Niu, Haiyun Niu, Rui Xue, Zhiyong Hou, Zhiyong Hou, Wei Chen, Wei Chen, Di Zhang, Di Zhang, Di Zhang   +17 more
doaj   +1 more source

Pelvic alignment changes during the perinatal period.

PLoS ONE, 2019
BackgroundThe function of the pelvic bones is to transfer load generated by body weight. Proper function of the pelvic bones can be disturbed by alignment changes that occur during pregnancy.
Saori Morino, Mika Ishihara, Fumiko Umezaki, Hiroko Hatanaka, Mamoru Yamashita, Tomoki Aoyama   +5 more
doaj   +1 more source

High Rate of Return to Sport in Competitive Athletes Undergoing Periacetabular Osteotomy With Concomitant Hip Arthroscopy

Arthroscopy, EarlyView.
Purpose To report the return‐to‐sport rate of competitive athletes with hip dysplasia, in relation to their preoperative level of competition, who underwent hip arthroscopy with concomitant periacetabular osteotomy (HA + PAO). Methods Patients participating in competitive sports who underwent HA + PAO for the correction of hip dysplasia between January
Alfred Mansour, Nicole Lemaster, Jacob Jelmini, Philip Sheedy, Anota Adekunle, Alexis Aboulafia   +5 more
wiley   +1 more source