Functional Orthopedics for Modern Injury Recovery Benefits

Functional Orthopedics for Modern Injury Recovery

Abstract

Welcome to our educational post, where we will explore a new frontier in musculoskeletal health: Functional Orthopedics. This comprehensive approach goes beyond simply treating pain to identify and address the root causes of dysfunction throughout the body. We will journey through the core principles of interventional and functional orthopedics, understanding how treating the entire “functional unit”—not just the site of pain—leads to more comprehensive and lasting patient outcomes. This discussion will integrate the latest evidence-based research, showcasing how procedures like intraosseous injections of orthobiologics are revolutionizing care for conditions like osteoarthritis. We will also introduce our unique, multidisciplinary team approach at Injury Medical Clinic, where integrative chiropractic care, functional medicine, and traditional medical oversight converge to create a truly holistic healing environment for our patients.

A New Era of Integrative Care in El Paso

I am thrilled to announce a significant and exciting development at our practice, Injury Medical Clinic PA. We are honored to welcome Dr. Maria Guadalupe Cardenas, MD, as our Medical Director and Collaborative Physician. Dr. Cardenas is a highly respected, board-certified internist with over 40 years of invaluable experience in internal medicine (Texas MD License #J2933, NPI #1164426749).

This collaboration marks a pivotal moment in our commitment to providing the most comprehensive, patient-centered care possible. Our clinic has long been dedicated to a functional and integrative model, and with Dr. Cardenas’s medical oversight, we are elevating that mission. This multidisciplinary structure allows us to blend the best of several worlds:

• Medical Direction (Dr. Cardenas): Provides essential medical oversight, diagnostic expertise, and a deep understanding of systemic health, ensuring patient safety and comprehensive medical management.
• Chiropractic & Functional Neurology (Dr. Jimenez): Focuses on biomechanics, spinal health, nervous system function, and the structural integrity of the body through advanced chiropractic techniques.
• Functional & Regenerative Medicine: Our combined team delves into the root causes of illness, utilizing advanced diagnostics and therapies to optimize the body’s innate healing capabilities.

Together, we offer a seamless continuum of care that includes personal injury rehabilitation, advanced chiropractic adjustments, functional medicine protocols, and now, enhanced medical diagnostics and management. This synergy ensures that our patients receive a truly holistic evaluation and a treatment plan that addresses their health from every angle.

Understanding Interventional Orthopedics: Precision-Guided Healing

Let’s begin by defining a key concept: interventional orthopedics. This isn’t just about managing pain; it’s a sophisticated approach that uses advanced imaging, such as ultrasound and fluoroscopy, to precisely target and treat specific anatomical structures. Instead of a generalized injection into a painful area, we identify the specific ligaments, tendons, joint spaces, or even bones contributing to the problem. This allows us to deliver therapeutic agents—like orthobiologics—directly to the source of injury or degeneration with unparalleled accuracy.

The core idea is to move away from treating symptoms and toward correcting the underlying pathology. We are not just looking at the “thing” that hurts; we are looking at the entire interconnected system and using modern technology to intervene with purpose and precision. But this leads to a critical question: how do we know what to target? This is where functional orthopedics comes into play.

The Philosophy of Functional Orthopedics: A Holistic Blueprint

I’ve coined the term “functional orthopedics” to describe a philosophy deeply rooted in my background as both an osteopathic- and chiropractic-minded practitioner and a physical medicine and rehabilitation (PM&R) specialist. This isn’t a new invention but rather a synthesis of time-tested principles applied through a modern lens. The philosophy is built upon several core tenets:

• The body is a single, integrated unit. No part works in isolation. An issue in the foot can manifest as pain in the hip or back.
• Structure and function are reciprocally interrelated. The alignment and integrity of your body’s structure directly impact its ability to function, and vice versa. Poor function will eventually degrade structure.
• The body possesses powerful self-healing mechanisms. Our role as clinicians is to identify and remove barriers to this innate healing process and provide the necessary support to facilitate it.
• Rational treatment is based on understanding these principles. A truly effective treatment plan must consider the whole person and their unique biomechanics.

This approach is beautifully illustrated by the functional medicine tree model. Instead of just trimming the leaves (symptoms), we examine the roots—the underlying causes of dysfunction. In orthopedics, this means considering biomechanics, systemic inflammation, nutritional status, and neuromuscular control to develop a truly personalized and effective treatment strategy.

The Functional Unit Approach: Treating the System, Not Just the Joint

A cornerstone of functional orthopedics is the concept of the functional unit. Originally described in surgical literature as the “functional spinal unit,” this concept acknowledges that a joint or spinal segment does not exist in a vacuum. It is part of a complex system of interconnected bones, ligaments, muscles, and nerves.

For example, when we treat the spine, we understand that the problem is rarely confined to a single disc or facet joint. We must also consider the stability provided by the surrounding ligaments, the function of the paraspinal muscles, and the body’s overall center of gravity.

Emerging research in orthobiologics powerfully supports this comprehensive view. Recent studies have demonstrated that treating the entire functional unit of the spine—injecting not only the epidural space but also the facet joints, interspinous ligaments, and deep multifidus muscles—yields significantly better and more durable outcomes. Patients experience longer-term relief because the entire support system is being repaired and stabilized, not just the primary pain generator.

This principle extends beyond the spine. A landmark study on knee osteoarthritis compared two groups: one receiving only an intra-articular (in-the-joint) injection, and the other receiving both intra-articular and extra-articular injections targeting surrounding supportive structures. While both groups improved, the group treated more comprehensively experienced superior and more lasting benefits. This paradigm shift is critical: effective treatment must address both the inside and the outside of the joint capsule.

Beyond the Joint: The Critical Role of Subchondral Bone

For decades, the narrative around osteoarthritis has focused almost exclusively on cartilage. Patients often come to me saying, “My cartilage is gone.” We now understand that cartilage loss itself does not always correlate with pain. The story is much deeper, and it goes right to the bone.

When cartilage wears away, the underlying subchondral bone becomes exposed to abnormal stress. This bone is not inert; it is a living, dynamic tissue rich with blood vessels, nerves, and progenitor cells (including mesenchymal stem cells) that are vital for tissue repair.

Pioneering work by Dr. Philippe Hernigou, a giant in regenerative medicine, has shed light on this process. His research compared the concentration of healing cells in the bone marrow of the iliac crest (a common harvest site) to that in the subchondral bone of an osteoarthritic knee. He found that as osteoarthritis progresses, the population of these vital healing cells in the subchondral bone declines dramatically. The local environment loses its ability to self-repair.

This discovery has paved the way for a groundbreaking treatment: intraosseous injection. By injecting orthobiologics like Platelet-Rich Plasma (PRP) or Bone Marrow Aspirate Concentrate (BMAC) directly into the subchondral bone, we are essentially “re-seeding” the depleted environment with the cells and growth factors needed to reduce inflammation, improve blood flow, and stimulate a healing response.

• A recent meta-analysis and a consensus statement we helped develop for the American Academy of Physical Medicine and Rehabilitation (AAPM&R) confirmed that intraosseous PRP injections have significant merit for knee osteoarthritis, especially in more advanced cases.
• Perhaps the most compelling evidence comes from a remarkable set of sister studies on intraosseous BMAC for severe knee osteoarthritis, with an average follow-up of 15 years. In one study, patients who had already undergone a knee replacement on one knee underwent an intraosseous BMAC procedure on their other arthritic knee. An astounding 80% of these patients avoided a knee replacement on the treated side and overwhelmingly preferred their “BMAC knee” to their artificial one.

This indicates that for moderate-to-severe osteoarthritis, the most robust approach is to treat the entire functional unit: the intra-articular space, the extra-articular soft tissues, and the subchondral bone.

Clinical Detective Work: Assembling the Biomechanical Puzzle

So, how do we decide what to inject? It’s not a matter of guesswork. This is where we put on our clinical detective hats and perform a thorough investigation. A comprehensive physical examination and diagnostic ultrasound are our primary tools.

Let’s consider a patient with medial (inner) knee pain due to osteoarthritis or a meniscus tear. It’s not enough to simply inject the medial compartment. We must analyze their biomechanics.

• Varus Deformity (Bow-Legged): If a patient has a varus alignment, there is excess stress on the medial compartment. In this case, the lateral collateral ligament (LCL) is likely under constant tension, resulting in stretching and functional weakness. To restore stability, we must treat not only the damaged medial structures but also tighten and support the overstretched lateral ligament.
• Valgus Deformity (Knock-Kneed): Conversely, in a valgus alignment, the lateral compartment is compressed, and the medial soft tissues, like the medial collateral ligament (MCL), are stretched. A comprehensive plan would address both.
• Patellofemoral Pain: If the kneecap (patella) is tracking improperly, often pulled laterally, the medial patellofemoral ligament (MPFL) may be lax. Strengthening this ligament is key to restoring proper tracking and alleviating pain.

But our investigation doesn’t stop at the knee. We must look up and down the kinetic chain. If a patient presents with non-traumatic knee pain, I am immediately asking:

• What is happening at the foot and ankle? Is there overpronation or a lack of big toe extension (a weak extensor hallucis longus muscle), causing the knee to collapse inward?
• What is happening at the hip? Is there weakness in the gluteal muscles, particularly the gluteus medius, which is essential for pelvic stability? Hip weakness is a notorious culprit in downstream knee problems.
• Is there a neurologic component? Could a “subclinical radiculopathy” (a subtle nerve irritation in the lower back) be causing weakness in the muscles that control the leg, leading to biomechanical breakdown at the knee?

By strength-testing key muscles, assessing nerve tension, and analyzing the patient’s gait, we can uncover the true drivers of their condition. Treating the knee in isolation when the root cause is hip weakness or poor foot mechanics will only provide temporary relief. For lasting results, we must address the entire dysfunctional pattern. This is how we move from being a “pain generator” focused clinic to a “treatment generator” focused one—by looking at the patient as a whole.

This philosophy—blending deep biomechanical analysis, precise interventional techniques, and a commitment to treating the entire functional unit—is the future of musculoskeletal medicine. It is a profoundly rewarding way to practice, and it offers our patients the very real possibility of long-term healing and restored function.

References

1. Centeno, C., et al. (2020). A prospective multi-site registry study of a specific protocol of autologous bone marrow concentrate for the treatment of shoulder rotator cuff tears and osteoarthritis. Journal of Pain Research, 13, 1573–1586.
2. Centeno, C., et al. (2018). The use of lumbar epidural injection of platelet lysate for treatment of radicular pain. Journal of Experimental Orthopaedics, 5(1), 38.
3. Darrow, M., et al. (2019). Treatment of unresolved lower back pain with platelet-rich plasma injections. Cogent Medicine, 6(1), 1581449.
4. Hernigou, P., et al. (2021). Subchondral bone stem cells in knee and shoulder osteoarthritis: a review of the literature. Stem Cells International, 2021, 8884222.
5. Hernigou, P., et al. (2020). Subchondral bone marrow concentrate is a better alternative to total knee arthroplasty than intra-articular injection for advanced osteoarthritis: A 15-year prospective study. Stem Cell Research & Therapy, 11(1), 220.
6. Pourcho, A. M., et al. (2023). Systematic review and meta-analysis of intra-articular and intraosseous platelet-rich plasma for knee osteoarthritis: an AAPM&R special interest group collaboration. PM&R: The Journal of Injury, Function, and Rehabilitation, 15(S1), S1-S18.
7. Sánchez, M., et al. (2016). Intra-articular and extra-articular injections of platelet-rich plasma in knee osteoarthritis: a controlled clinical trial. Clinical Journal of Sport Medicine, 26(4), 304–311.