Author name: Eric Phillippi

lumbar spine mechanics
Spine

Lumbar Biodynamics for Orthopedics: Posterior Stabilization with Ultrasound-Guided Injections

The lumbar functional unit is a dynamic system. Each vertebral level interacts with the one above and below through a complex interplay of vertebral bodies, discs, lamina, facet joints, and the posterior ligaments. In this context, the concept of biodynamics and biotin—the posterior elements acting as stabilizers—becomes a useful framework for understanding where pain and instability originate and how we can address them with injections.

Clinic Operations

The Surprisingly Perfect Skin-Marking Pen for Prolo & PRP (Yes, It’s an Eyeliner)

Quick, practical tip you can use on your very next injection day: the humble skin-marking pen. When I’m planning prolotherapy or PRP, I always start with palpation. I mark bony landmarks and key reference points directly on the skin, then confirm and refine with ultrasound. That simple step does two things: it sharpens my targeting on screen and it improves the patient’s experience—because they can see the plan before we ever pick up a needle.

Clinic Operations, Nerves

Ultrasound Depth Settings for Safer, Cleaner Injections

Depth is one of the first—and most important—settings to optimize when performing ultrasound-guided injections. Set it too shallow and you’ll lose critical lateral information; too deep and you sacrifice resolution. Here’s a simple, repeatable approach using the medial ankle (posterior tibial nerve at the medial malleolus) to get your depth right before you ever pick up a needle.

Lower Extremity

The Step-by-Step Knee Physical Exam: A Practical Guide

Unlock the secrets to an effective knee physical exam with our step-by-step guide! Whether you’re a seasoned clinician or a student, mastering this structured approach will help you identify the root cause of knee pain—be it articular, ligamentous, meniscal, or neuro-myofascial. From standing inspections to detailed palpation maps, each step is designed to enhance your diagnostic skills. Discover essential techniques like the Lachman test and McMurray maneuver, and learn how foot mechanics can influence knee health. Dive into our practical guide and elevate your clinical practice today!

Lower Extremity, Nerves

Differentiating Medial Knee Pain: Infrapatellar Saphenous vs. Inferior Medial Genicular Nerves

Patients often report focal tenderness over the medial tibial plateau/infrapatellar area, where both IPS (superficial, cutaneous) and IMGN (deep, capsular) converge clinically. Palpation alone can be inconclusive; you may elicit tenderness over the pes anserine region, MCL, or along the saphenous track to the medial malleolus without confidently assigning the driver.

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