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Related Experiment Videos

Postoperative pressure under the rheumatic feet.

E Samnegård1, I Turan, H Lanshammar

  • 1Department of Orthopaedic Surgery, Karolinska Institute, Huddinge University Hospital, Sweden.

The Journal of Foot Surgery
|November 1, 1990
PubMed
Summary

Rheumatoid arthritis patients, four years post-foot surgery, showed normal toe pressure but significantly higher pressure on the first metatarsal and tarsal regions during gait analysis.

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Area of Science:

  • Orthopedics
  • Rheumatology
  • Biomechanics

Background:

  • Rheumatoid arthritis (RA) commonly affects the feet, leading to deformities and pain.
  • Foot surgery is a frequent intervention for RA patients, but its long-term effects on gait biomechanics require further investigation.
  • Understanding gait alterations post-surgery is crucial for optimizing patient outcomes and rehabilitation strategies.

Purpose of the Study:

  • To evaluate the long-term effects of foot surgery on gait parameters in rheumatoid arthritis patients.
  • To compare plantar pressure distribution between rheumatoid arthritis patients post-foot surgery and healthy controls.
  • To identify specific foot regions experiencing altered pressure loading in RA patients after surgery.

Main Methods:

  • Utilized the EMED gait analysis system for quantitative plantar pressure measurement.
  • Included ten seropositive rheumatoid arthritis patients with a mean of four years post-foot surgery.
  • Compared gait data with a control group of ten healthy subjects.

Main Results:

  • Plantar pressure in the toe regions was comparable between the rheumatoid arthritis and control groups.
  • A statistically significant increase in maximum plantar pressure was observed in the first metatarsal region of RA patients.
  • The rheumatoid arthritis group also exhibited significantly elevated maximum pressure in the tarsal region.

Conclusions:

  • Foot surgery in rheumatoid arthritis patients may normalize toe loading but can lead to increased pressure in the forefoot (first metatarsal) and midfoot (tarsal) regions.
  • These findings suggest persistent biomechanical alterations in RA patients' feet even after surgical intervention.
  • Further research is warranted to explore the clinical implications of these pressure changes and develop targeted interventions.

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