Lower limb osteoarthritis: biomechanical alterations and implications for therapy

Area of Science:

• Orthopedics
• Biomechanics
• Rheumatology

Background:

• Conventional treatments for knee osteoarthritis, including analgesics and physical therapy, do not modify disease progression.
• Aberrant biomechanics are a key factor in the pathogenesis and progression of lower-extremity osteoarthritis.
• Novel therapeutic strategies are required to effectively manage osteoarthritis.

Purpose of the Study:

• To review the role of biomechanics in lower-extremity osteoarthritis.
• To explore recent advances in biomechanically active interventions for osteoarthritis management.

Main Methods:

• Literature review focusing on biomechanical principles in osteoarthritis.
• Analysis of gait analyses and validated markers of dynamic knee loading, such as peak adduction moment (AddM) and adduction angular impulse (AddImp).
• Evaluation of intervention strategies aimed at reducing functional knee loads.

Main Results:

• Aberrant biomechanics are identified as a mediator of lower-extremity osteoarthritis progression.
• Gait analyses and specific loading markers can quantify biomechanical abnormalities.
• Intervention strategies targeting reduced knee loading are being developed.

Conclusions:

• Biomechanically active interventions effectively reduce dynamic knee loading in osteoarthritis patients.
• These interventions offer a promising approach for symptom management in osteoarthritis.
• Biomechanically focused strategies may alter the natural course of osteoarthritis disease progression.