Results 121 to 130 of about 173,245 (314)

The mechanism of labor in nonhuman primates: A look inside

The Anatomical Record, EarlyView.
Abstract While in humans, the flexed position of the fetus and its rotating course down the birth canal are well documented, in other primates the mechanism of labor is unknown. Despite the lack of comparative data, it is commonly assumed that the human obstetric mechanism is unique, and anthropologists have disputed when and why the transition to the ...
Melissa K. Stoller
wiley   +1 more source

Analyzing isolated degeneration of lumbar facet joints: implications for degenerative instability and lumbar biomechanics using finite element analysis

Frontiers in Bioengineering and Biotechnology
The facet joint contributes to lumbar spine stability as it supports the weight of body along with the intervertebral discs. However, most studies on the causes of degenerative lumbar diseases focus on the intervertebral discs and often overlook the ...
Jun Sung Park, Tae Sik Goh, Tae Sik Goh, Jung Sub Lee, Jung Sub Lee, Chiseung Lee, Chiseung Lee   +6 more
doaj   +1 more source

Historical birth records from 1896 to 1944 from the Basel maternity hospital, Switzerland, reveal significant obstetric selection pressures

The Anatomical Record, EarlyView.
Abstract Maternal and neonatal morbidity and mortality have declined dramatically during the last century. Historical data are therefore important sources to study the evolutionary selection pressures related to childbirth and how they have fluctuated over time.
Mirella Woodert, Guillermo Bravo Morante, Viktoria A. Krenn, Cédric Cordey, Nicole Torres‐Tamayo, Kaspar Staub, Nicole M. Webb, Martin Haeusler   +7 more
wiley   +1 more source

Lumbar offset distance: A simplified metric for evaluation of the lumbar spine alignment

Journal of Craniovertebral Junction and Spine
Background: A healthy lower back is essential for optimal spinal function and overall wellness. Magnetic resonance imaging (MRI) has become the gold standard in assessing lumbar spine disease.
Kapil Shirodkar, Sai Niharika Gavvala, Sisith Ariyaratne, Nathan Jenko, Neha Nischal, Karthikeyan P. Iyengar, Jwalant Mehta, Rajesh Botchu   +7 more
doaj   +1 more source

Scaling and ecomorphology of lagomorph body shape and appendicular skeleton

The Anatomical Record, EarlyView.
Abstract Body shape is one of the most prominent features of phenotypic variation. Yet, mammalian body shapes are poorly quantified and the underlying components contributing to its diversity and its relationship to other skeletal components are rarely tested.
Nia Brice, Coby Huizenga, Chris J. Law
wiley   +1 more source

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

DIGITAL PROCESSING FOR FLUOROSCOPY-BASED INTERVERTEBRAL KINEMATIC ANALYSIS [PDF]

, 2011
Spinal degenerations can lead to segmental instability that is regarded as a major cause of back pain and is often an important factor in deciding on surgical fusion or prosthesis implant.
Cerciello, Tommaso
core  

Biologic and Targeted Synthetic Disease‐Modifying Antirheumatic Drugs Do Not Arrest Bone Loss in Patients With Rheumatoid Arthritis: A Long‐Term Multicenter Observational Study

Arthritis &Rheumatology, EarlyView.
Objective Osteoporosis causes fractures that further increase the disease burden of rheumatoid arthritis (RA); however, osteoporosis treatment rates remain low. Although several studies have reported that biologic or targeted synthetic disease‐modifying antirheumatic drugs (b/tsDMARDs) can prevent or improve osteoporosis in RA, our large‐scale, real ...
Takafumi Aritomi, Koshiro Sonomoto, Shingo Nakayamada, Hiroaki Tanaka, Atsushi Nagayasu, Satoshi Kubo, Ippei Miyagawa, Ayako Yamaguchi, Naoaki Ohkubo, Yasuyuki Todoroki, Yurie Satoh‐Kanda, Masanobu Ueno, Ryuichiro Kanda, Yuya Fujita, Masashi Funada, Hidenori Sakai, Satsuki Matsunaga, Hiroaki Tanaka, Masayuki Shinojima, Hiroki Kawamura, Kazuki Takahashi, Miyabi Ando, Kazuki Haru, Yusuke Miyazaki, Kentaro Hanami, Masao Nawata, Shunsuke Fukuyo, Keisuke Nakatsuka, Mikiko Tokunaga, Kazuyoshi Saito, Yoshiya Tanaka   +30 more
wiley   +1 more source

Sinicization of the Hospital for Special Surgery Lumbar Spine Surgery Expectations Survey and its reliability and validity test

Huli yanjiu
ObjectiveTo translate the Hospital for Special Surgery Lumbar Spine Surgery Expectations Survey(HSS⁃LSSES) into Chinese version and test its reliability and validity.MethodsThe Brislin translation model was adopted for translation,back⁃translate,cross ...
HUANG Jiyun, WANG Shuang, XIA Fan, LI Jiuqun   +3 more
doaj  

Bioinspired Fabric Ligament with Tunable Stiffness for Reproducing 3D Lumbar Spine Kinematics

Small Structures
Lumbar spine ligaments play a critical role in maintaining spine joint stability and structural integrity within segmental biomechanics. However, most existing lumbar spine models and simulators neglect ligament contributions, leading to incomplete or ...
Guangsheng Song, Weilong Jin, Guanghui Li, Yushan Sun, Jianan Wu, Hounan Song, Yuyang Wei, Kaize Wang, Zhende Jiang, Zhihui Qian, Lei Ren, Luquan Ren   +11 more
doaj   +1 more source