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Related Experiment Videos

Centralization: its prognostic value in patients with referred symptoms and sciatica.

Lene Skytte1, Stephen May, Peter Petersen

  • 1Fysioegaa Rehab Center, Egå, Denmark.

Spine
|June 2, 2005
PubMed
Summary

Centralization during mechanical evaluation predicts better outcomes for sciatica patients with referred symptoms. Patients not experiencing centralization are six times more likely to require surgery.

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Area of Science:

  • Orthopedics
  • Physical Therapy
  • Rehabilitation Medicine

Background:

  • Centralization is common in non-specific low back pain and linked to good prognosis.
  • The prognostic value of centralization in sciatica with referred symptoms remains unevaluated.

Purpose of the Study:

  • To determine the prognostic significance of centralization in patients with subacute sciatica and referred symptoms.
  • To compare outcomes between patients who experience centralization and those who do not.

Main Methods:

  • A prospective, comparative cohort study involving 60 patients with sciatica and suspected disc herniation.
  • Patients underwent standardized mechanical evaluation with repeated end-range movements to identify centralization.
  • Outcomes including pain, disability, and surgical rates were assessed over one year.

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Main Results:

  • The centralization group (CG) showed significantly better outcomes at 1, 2, and 3 months compared to the non-centralization group (NCG).
  • At 2 months, CG reported less leg pain and disability, and improved Nottingham Health Profile scores.
  • After one year, disability was lower in the CG, with only 3 CG patients undergoing surgery versus 16 in the NCG (OR 6.2).

Conclusions:

  • Centralization in response to mechanical evaluation is a significant positive prognostic indicator for sciatica patients with suspected disc herniation.
  • Lack of centralization predicts a substantially higher likelihood of requiring surgical intervention for sciatica.