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[A study on senile postural deformity].

K Nakada1

  • 1Department of Orthopaedic Surgery, Jichi Medical School, Tochigi, Japan.

Nihon Seikeigeka Gakkai Zasshi
|December 1, 1988
PubMed
Summary
This summary is machine-generated.

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Senile spinal deformity is often caused by lumbar disc degeneration. The body compensates for stooping through lower extremity movements, highlighting the spine and legs as a single unit.

Area of Science:

  • Gerontology
  • Orthopedics
  • Biomechanics

Context:

  • Aging leads to spinal deformities like stooping.
  • Four types of senile spinal deformity were identified: extended, S-shaped, flexed, and hand-on-the-lap.
  • Lumbar disc degeneration is a primary cause of anterior stooping, except in the S-shaped type.

Purpose:

  • To elucidate the mechanisms behind senile spinal deformity.
  • To understand how the body compensates for spinal changes in aged individuals.

Summary:

  • Paraspinal muscles attempt to prevent anterior stooping.
  • Posterior pelvic tilting, achieved through hip extension and knee flexion, corrects stooping when muscles are insufficient.
  • Excessive knee flexion (over 25-30 degrees) can lead to patellofemoral osteoarthritis, resulting in a hand-on-the-lap posture.

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Impact:

  • Spinal deformity in the aged is compensated by the lower extremities.
  • The spine and lower extremity function as an integrated musculoskeletal unit.