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Skeletal deformities in Barbus xanthos (Teleostei: Cyprinidae) collected from the Dalaman River in southwestern Turkey

Jawad Laith, Güçlü Salim Serkan

Oceanological and Hydrobiological Studies

2022

Vol. 51, No. 2

203--211

In this study, skeletal anomalies such as vertebral centra deformation, lordosis (ventral curvature), and consecutive repetition of lordosis and kyphosis were examined in specimens of Barbus xanthos (Güçlü, Kalaycı, Küçük & Turan, 2020) collected from the Dalaman River, southwestern Turkey. Abnormalities of the vertebral column were observed in both thoracic and caudal vertebrae. Cases of lordosis and consecutive repetition of lordosis and kyphosis showed varying degrees of severity. Specimens with consecutive repetition of lordosis showed the most acute deformities among the cases studied, as they revealed complicated incidences of skeletal anomalies. None of the cases were fatal as they occurred in adult individuals. This study discusses the possible causes of such deformities and the usefulness of this type of study in environmental monitoring.

Biomechanics of the human spine

Jaworski Ł., Karpiński R.

Journal of Technology and Exploitation in Mechanical Engineering

2017

Vol. 3, nr 1

8--12

The paper presents biomechanics of the human spine. The vertebrae of the spine are described, including basic differentiation between vertebrae depending on theirs placement in the spine. The intervertebral discs are depicted. Curvatures of the spine are presented, followed by the basic biomechanics, including a movability of the spine and an influence of body posture on the spine.

Artykuł przedstawia zarys biomechaniki kręgosłupa człowieka. Opisano kręgi, uwzględniając różnice w budowie między kręgami na różnych odcinkach kręgosłupa oraz krążki międzykręgowe. Przybliżono strukturę krzywizn oraz podstawy biomechaniki kręgosłupa, uwzględniając jego zakresy ruchów i wpływ postawy ciała na kręgosłup.

Kyphosis correction after vertebroplasty in osteoporotic vertebral compression fractures

Dragan Sz.F., Urbański W., Żywirski B., Krawczyk A., Kulej M., Dragan Sz.Ł.

Acta of Bioengineering and Biomechanics

2012

Vol. 14, no. 4

63-69

Percutaneous vertebroplasty is a minimally invasive method of treating vertebral compression fractures aimed mainly at reduction of pain. It has been observed that fractured vertebral bodies filled in with cement might also influence the increase of their height and thus lead to reduction of post-traumatic spine kyphosis. The aim of the research was to assess the possibility of reducing the kyphotic deformation of operated spine through kyphosis measurement of vertebras adjacent to fracture. 24 patients underwent percutaneous vertebroplasty on account of compression fracture of 40 vertebral bodies in thoracic and lumbar regions. On digital x-ray spine images taken in patients before and after surgery the angle of kyphosis or lordosis of bodies above and below the fractured vertebra was measured with the use of the Cobb method. Vertebroplasty in the material examined caused reduction of kyphosis in 33 cases (80.48%) and correction by 5.78 degrees on average. No regularity was found either between the occurrence of correction (and its level) and operated spine region or between the possibility of kyphosis correction and time that passed between fracture and surgery.