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3 results

  • Design and control of a cable-driven rehabilitation robot for upper and lower limbs

  • Efe Levent Oyman, Muhammed Yusuf Korkut, Cüneyt Yilmaz, Zeki Y. Bayraktaroglu, M. Selcuk Arslan
  • Journal:
    Robotica / Volume 40 / Issue 1 / January 2022
    Published online by Cambridge University Press:
    19 April 2021, pp. 1-37

  • The design and control of a cable-driven rehabilitation robot, which can be configured easily for exercising different articulations such as elbows, shoulders, hips, knees and ankles without requiring any orthosis, are introduced. The passive, active-assisted and active-resisted exercises were designed and implemented using impedance control. The controller could switch between exercises according to the force feedback. The effectiveness of the proposed controller was demonstrated by experimental studies. The robot was tested first with a dummy extremity and then with a healthy subject mimicking various types of patients during the tests. Experimental results showed that satisfactory closed-loop performances were achieved.

  • Location of the middle cranial fossa dural plate in patients with chronic otitis media

  • S Genc, M G Genc, I B Arslan, A Selcuk
  • Journal:
    The Journal of Laryngology & Otology / Volume 128 / Issue 1 / January 2014
    Published online by Cambridge University Press:
    22 January 2014, pp. 60-63
    Print publication:
    January 2014
  • Aim:

    This study aimed to determine whether or not the middle cranial fossa dural plate is located lower (i.e. more caudally) in patients with chronic otitis media, relative to adjacent structures.

    Methods:

    The authors retrospectively investigated computed tomography temporal bone scans of 267 ears of 206 patients who had undergone surgery with a diagnosis of chronic otitis media, together with scans of 222 ears of 111 patients without chronic otitis media. The depth of the middle cranial fossa dural plates was recorded.

    Results:

    The mean depth of the middle cranial fossa dural plate was 4.59 mm in the study group and 2.71 mm in the control group (p < 0.001). The middle cranial fossa dural plate was located lower in the right ear in both the study and control groups.

    Conclusion:

    The middle cranial fossa dural plate was located lower in patients with chronic otitis media, and in the right ears of both patients and controls. Surgeons should take this low location into consideration, and take extra care, during relevant surgery on patients with chronic otitis media.