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Synovial joints are the most common type of joint in the body. A key structural characteristic for a synovial joint is the presence of a joint cavity. This fluid-filled space is where the articulating surfaces of the bones contact each other. Also, unlike fibrous or cartilaginous joints, the articulating bone surfaces at a synovial joint are not directly connected to each other with fibrous connective tissue or cartilage. This gives the bones of a synovial joint the ability to move smoothly...
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The normal, a continuous distribution, is the most important of all the distributions. Its graph is a bell-shaped symmetrical curve, which is observed in almost all disciplines. Some of these include psychology, business, economics, the sciences, nursing, and, of course, mathematics. Some instructors may use the normal distribution to help determine students’ grades. Most IQ scores are normally distributed. Often real-estate prices fit a normal distribution. The normal distribution is...
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A Standardized Method for Measurement of Elbow Kinesthesia
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[Normal variants and pitfalls at the elbow joint].

D Müller1, C Schäffeler2

  • 1Muskuloskelettale und Traumabildgebung, Kantonsspital Graubünden, Zentrales Röntgeninstitut, Loëstr. 170, 7000, Chur, Schweiz. dirk.mueller@ksgr.ch.

Der Radiologe
|September 22, 2018
PubMed
Summary

Elbow joint anatomy includes common and rare variations that can be mistaken for pathology on CT or MRI scans. Understanding these normal variants is crucial for accurate radiological interpretation.

Keywords:
Accessory muscleBone structuresNervesOssiclesOssification centers

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Area of Science:

  • Anatomy
  • Radiology
  • Orthopedics

Background:

  • The elbow joint's complex structure involves three bones and multiple soft tissues.
  • Anatomical variations are frequent and can mimic pathologies.
  • Cross-sectional imaging (CT/MRI) can lead to misinterpretation of normal findings.

Purpose of the Study:

  • To describe common and rare normal anatomical variants of the elbow joint.
  • To illustrate classic imaging pitfalls.
  • To compare normal variants with similar-looking pathological findings.

Main Methods:

  • Review of common and rare normal elbow joint variants.
  • Illustration of imaging findings on CT and MRI.
  • Comparison of normal variants with pathological conditions.

Main Results:

  • Detailed description of various normal anatomical variations around the elbow.
  • Presentation of characteristic imaging examples for each variant.
  • Highlighting potential diagnostic errors due to misinterpretation.

Conclusions:

  • Familiarity with normal elbow joint variants is essential for radiologists.
  • Accurate differentiation between normal variants and pathology improves diagnostic accuracy.
  • This knowledge aids in avoiding unnecessary investigations and treatments.