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Related Experiment Videos

"Custom-fit" versus "off-the-shelf" ACL functional braces.

E M Wojtys1, L J Huston

  • 1Section of Orthopedic Surgery, University of Michigan, Ann Arbor, USA.

The American Journal of Knee Surgery
|August 9, 2001
PubMed
Summary
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Custom-fit anterior cruciate ligament (ACL) knee braces offer no significant performance advantage over off-the-shelf braces for ACL-deficient knees. Both brace types demonstrated superior stability compared to athletic taping, with less migration observed in off-the-shelf models.

Area of Science:

  • Sports Medicine
  • Orthopedics
  • Biomechanics

Background:

  • Sports medicine practitioners often assume custom-fit anterior cruciate ligament (ACL) braces outperform off-the-shelf options for ACL-deficient knees.
  • Clinical evidence substantiating this belief is limited.

Purpose of the Study:

  • To compare the efficacy of a custom-fit ACL brace (Donjoy CE 2000), an off-the-shelf ACL brace (Donjoy Goldpoint), and athletic taping.
  • To evaluate their impact on knee stability and function in patients with chronic ACL tears.

Main Methods:

  • Five patients with chronic ACL tears were evaluated using three restraint systems: custom brace, off-the-shelf brace, and athletic tape.
  • Measurements included anterior tibial laxity, muscle strength and endurance, jump performance, brace migration, and muscle response patterns.

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Main Results:

  • The custom-fit brace did not significantly outperform the off-the-shelf brace in reducing laxity, improving strength, endurance, or jump performance.
  • Both braces enhanced anterior stability more than taping under low-force muscle contraction.
  • The custom brace exhibited significantly greater migration (18.6 mm) than the off-the-shelf brace (4.5 mm) after one hour of exercise.

Conclusions:

  • There is no demonstrable advantage of a more expensive custom-fit ACL brace over an off-the-shelf brace for the evaluated parameters.
  • Off-the-shelf ACL braces provide comparable or superior outcomes to custom-fit braces in this patient cohort.