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Related Experiment Videos

Kaplan's cardinal line.

Josh C Vella1, Brian J Hartigan, Peter J Stern

  • 1Department of Orthopaedic Surgery, University of Cincinnati, Cincinnati, OH 45267-0212, USA. vellajc1@hotmail.com

The Journal of Hand Surgery
|July 18, 2006
PubMed
Summary
This summary is machine-generated.

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There is no consensus on Kaplan's cardinal line (KCL) definition among hand surgeons. While some use it as a landmark, specific lines offer better identification of deep hand structures, with one being safest for anatomy.

Area of Science:

  • Anatomy
  • Surgical Landmarks
  • Hand Surgery

Background:

  • Kaplan's cardinal line (KCL) is a surgical landmark in hand anatomy.
  • Existing literature presents four distinct descriptions of KCL.
  • A lack of consensus may impact its reliable application in surgery.

Purpose of the Study:

  • To ascertain if a consensus definition for Kaplan's cardinal line (KCL) exists in scientific literature and among hand surgeons.
  • To evaluate the accuracy of various KCL definitions in relation to critical deep anatomical structures.

Main Methods:

  • A comprehensive literature review identified four different descriptions of KCL.
  • A survey was conducted among members of the American Society for Surgery of the Hand to determine the perceived correct KCL definition.

Related Experiment Videos

  • Cadaveric dissections were performed to mark the four KCL variations and measure their precision in identifying deep hand structures.

    • Main Results:

    • No consensus was found regarding the definition of KCL among surveyed hand surgeons.
    • Fifty percent of surgeons utilize KCL as a surgical landmark.
    • Specific KCL variations demonstrated varying degrees of accuracy in locating deep structures, with some being safer relative to the superficial palmar arch and motor branch of the median nerve.

    Conclusions:

    • Significant ambiguity surrounds the definition of KCL in both the literature and surgical practice.
    • While no single KCL definition perfectly identifies all deep structures, one variation (line C) is identified as the safest for anatomical reference.
    • Kaplan's cardinal line may not precisely locate deep hand structures but can aid in palmar incision planning.