Episode 71 explores why quadriceps strength often does not return automatically after total knee replacement, even when pain improves and walking increases. Michelle explains the role of nervous system inhibition, swelling, compensation patterns, and muscle activation in delayed strength restoration. The episode also discusses NMES, functional progress patterns, and why rebuilding trust in your new knee takes time. Listeners will leave with a clearer understanding of why weakness persists and how progressive rehabilitation supports long-term progress.

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Medical Disclaimer: This podcast is for educational purposes only and does not constitute medical advice. The content is not intended to replace individualized medical guidance, diagnosis, or treatment. Always consult your surgeon, physical therapist, or other qualified healthcare provider regarding your specific condition, surgical decisions, and rehabilitation plan.

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Evidence-Based Content Statement: All information presented in this episode is grounded in peer-reviewed research, published clinical guidelines, and current best practices in orthopedic surgery and rehabilitation.

Music Licensing Statement: Intro and outro music for the Total Knee Success Podcast is licensed for commercial use. Editing and production for this episode were completed using Descript.

References:

Mizner RL, Petterson SC, Stevens JE, Axe MJ, Snyder-Mackler L. Early quadriceps strength loss after total knee arthroplasty: The contributions of muscle atrophy and failure of voluntary muscle activation. J Bone Joint Surg Am. 2005;87(5):1047-1053. doi:10.2106/JBJS.D.01992.

Arhos EK, Ito N, Snyder-Mackler K, et al. Who’s afraid of electrical stimulation? Let’s revisit the application of NMES at the knee. J Orthop Sports Phys Ther. 2024;54(2):101-107. doi:10.2519/jospt.2024.12218.

Orange GM, Hince DA, Jones M, et al. Physical function following total knee arthroplasty for osteoarthritis: A longitudinal systematic review with meta-analysis. J Orthop Sports Phys Ther. 2025;55(1):1-18. doi:10.2519/jospt.2025.12544.

Dandis AS, Hoogeboom TJ, Sliepen M, et al. Latent class analysis to predict outcomes of early high-intensity physical therapy after total knee arthroplasty, based on longitudinal trajectories of walking speed. J Orthop Sports Phys Ther. 2021;51(7):362-370. doi:10.2519/jospt.2021.10145.

Graber KC, Stevens-Lapsley JE, Petterson SC, et al. Expert consensus for the use of outpatient rehabilitation visits after total knee arthroplasty: A Delphi study. J Orthop Sports Phys Ther. 2023;53(9):566-578. doi:10.2519/jospt.2023.11882.

Dupuis F, Perreault K, Roy JS, et al. Group physical therapy programs for military members with musculoskeletal disorders: A pragmatic randomized controlled trial. J Orthop Sports Phys Ther. 2024;54(6):417-428. doi:10.2519/jospt.2024.12154.