Neural Exam - Newborn tone - popliteal angle

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Newborn-normal-behaviour.jpg</wikiflv> This 5-day-old infant is in the alert, quiet state.
  • The popliteal angle is an assessment of the tone of the hamstring muscles.
  • It is done one leg at a time.
  • The thigh is flexed on the abdomen with one hand and then the other hand straightens the leg by pushing on the back of the ankle until there is firm resistance to the movement.
  • The angle between the thigh and the leg is typically about 90 degrees.
  • Extension of the leg beyond 90 to 120 degrees would be seen in hypotonia.
Movie Source - Paul D. Larsen  
Movies from the PediNeuroLogic Exam website are used by permission of Paul D. Larsen, M.D., University of Nebraska Medical Center and Suzanne S. Stensaas, Ph.D., University of Utah School of Medicine. Additional materials were drawn from resources provided by Alejandro Stern, Stern Foundation, Buenos Aires, Argentina; Kathleen Digre, M.D., University of Utah; and Daniel Jacobson, M.D., Marshfield Clinic, Wisconsin. The movies are licensed under a Creative Commons Attribution-NonCommerical-ShareAlike 2.5 License.
Links: Neural Exam Movies | Movies


Cite this page: Hill, M.A. (2024, April 25) Embryology Neural Exam - Newborn tone - popliteal angle. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/Neural_Exam_-_Newborn_tone_-_popliteal_angle

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