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[Muscular stabilization of the upper ankle joint in lateral instability. An experimental study]
Beitrage Zur Orthopadie Und Traumatologie
|November 1, 1990
Summary
Functional ankle sprain treatment requires peroneal muscle strengthening alongside orthotic devices. This combination is crucial for stabilizing lateral ankle joints, improving outcomes for athletes and patients.
Area of Science:
- Biomechanics
- Orthopedics
- Sports Medicine
Context:
- Ankle instability is a common issue, particularly in athletes, often resulting from lateral ligamentous injuries.
- The peroneal tendons play a vital role in stabilizing the ankle joint against inversion and eversion forces.
Purpose:
- To investigate the mechanical stabilizing effect of artificially applied muscular strength to the peroneal tendons in cadaveric lower legs with dissected lateral ligaments.
- To determine the combined efficacy of muscular strength and orthotic devices in restoring ankle joint stability.
Summary:
- Dissected cadaveric ankles simulated instability, with anterior drawer and talar tilt tests measuring stability under varying peroneal muscular strength (75 N and 150 N).
- Results indicated that ankle joint stability was only achieved when muscular strength was combined with an orthotic device.
- Specifically, 75 N strength was needed for the anterior drawer sign and 150 N for talar tilt, in conjunction with orthotic use.
Impact:
- Findings suggest that functional treatment protocols for ankle sprains, even with orthotic devices, must incorporate targeted peroneal muscle strengthening exercises.
- This research provides evidence-based recommendations for optimizing rehabilitation strategies to enhance ankle stability and prevent recurrent injuries.