Results 141 to 150 of about 47,661 (305)

Osteology and arthrology of the ankle and tarsometatarsus of anoles (Iguania: Anolidae): not convergent with geckos but divergent from the ancestral iguanian condition

open access: yesJournal of Anatomy, EarlyView.
Geckos and anoline iguanid lizards are well‐known for their possession of adhesive toepads, which are generally regarded as being convergent structures. We show that the anatomical configuration of the foot in these two lineages differs markedly and that these differences likely relate to the contrasing ways they deploy their adhesive systems and ...
Anthony P. Russell   +2 more
wiley   +1 more source

Hindlimb functional morphology and locomotor biomechanics of the small Late Triassic pseudosuchian reptile Gracilisuchus stipanicicorum (Archosauria: Gracilisuchidae)

open access: yesJournal of Anatomy, EarlyView.
A three‐dimensional biomechanical model of the musculoskeletal system is used to analyse the potential locomotor functions of the small (~1 kg) Late Triassic archosaurian reptile Gracilisuchus stipanicicorum. The study finds that, potentially like the ancestral archosaur, this taxon was probably quadrupedal, plantigrade and neither strongly sprawling ...
Agustina Lecuona   +3 more
wiley   +1 more source

3D Analysis of Metatarsal Torsion by Computed Tomography in Normal, Hallux Valgus, and Hallux Rigidus Feet

open access: yesFoot & Ankle Orthopaedics
Background: One factor contributing to rotational deformity of the first metatarsal in hallux valgus is torsion of the metatarsal itself. Hallux rigidus also involves reduction of the longitudinal arch, but metatarsal torsion has not been discussed.
Tadashi Kimura MD, PhD   +5 more
doaj   +1 more source

Comparative functional morphological study of the tarsal joint mobility in artiodactyls and perissodactyls in light of astragalar morphological differences

open access: yesJournal of Anatomy, EarlyView.
This study investigated how variations in the shape of the astragalus affect tarsal joint behavior, using CT scans. In artiodactyls with a double‐pulley astragalus, the calcaneus shifted plantarly during plantarflexion. This suggests the movement increases hindlimb functional length and contributes to enhanced running speed.
Sei‐ichiro Takeda   +3 more
wiley   +1 more source

Minimally Invasive Chevron Akin Osteotomy: Preoperative Planning Using the Radiographic First-Ray Squeeze Test

open access: yesFoot & Ankle Orthopaedics
Background: Recognizing preoperative first-ray hypermobility is important to planning hallux valgus (HV) surgery. A recent study showed the minimally invasive chevron Akin (MICA) osteotomy increased varus displacement of the proximal fragment of the ...
Gustavo Araujo Nunes PhD(c)   +7 more
doaj   +1 more source

Jurassic scorpionflies (Mecoptera) with swollen first metatarsal segments suggesting sexual dimorphism [PDF]

open access: gold, 2021
Yanjie Zhang   +6 more
openalex   +1 more source

Effect of novel metabotropic glutamate receptor 5 antagonist on gastroesophageal reflux in dogs during anaesthesia

open access: yesJournal of Small Animal Practice, EarlyView.
Objectives Gastroesophageal reflux during anaesthesia is a common event occurring in dogs with the potential to cause oesophageal injury and aspiration pneumonia. The objective of the current study was to evaluate the effect of the novel metabotropic glutamate receptor 5 antagonist TT001 on gastroesophageal reflux during anaesthesia in dogs using two ...
A. Glovéus   +4 more
wiley   +1 more source

Partial tarsal arthrodesis with plate fixation for management of traumatic tarsometatarsal injuries in five cats

open access: yesJournal of Small Animal Practice, EarlyView.
Objectives To describe the aetiology, presentation, complications and outcome in cats with traumatic injuries of the tarsometatarsal joint treated with partial tarsal arthrodesis. Materials and Methods Retrospective series of five client‐owned cats. Medical records were retrieved for cats with traumatic injuries of the tarsometatarsal joint treated ...
R. L. Nixon, D. N. Clements, J. M. Ryan
wiley   +1 more source

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