#36 - Eric Chehab, M.D.: Extending healthspan and preserving quality of life

Jan 14, 2019 Episode Page ↗
Overview

Dr. Eric Chehab, an orthopedic surgeon specializing in sports medicine, discusses maintaining physical health, preventing common injuries, and navigating treatment options. He emphasizes understanding joint mechanics, the impact of lifestyle on orthopedic health, and coping with physical limitations.

At a Glance
39 Insights
2h 38m Duration
12 Topics
8 Concepts

Deep Dive Analysis

Early Life, Music, and Path to Medicine

Training at Hospital for Special Surgery (HSS)

NFL Fellowship: Athlete Freakishness and Injury Risk

Knee Joint Mechanics, Common Injuries, and Replacements

Exercise for Orthopedic Health and Bone Density

Common Injuries of Elbow, Wrist, Ankle, Foot, and Hip

Meniscus Surgery Controversy and Physical Therapy

PRP, Stem Cells, and the Placebo Effect in Orthopedics

Lower Back Injuries and Spinal Surgery Considerations

How to Choose an Orthopedic Surgeon

Coping with Injury and Adapting to New Realities

The Dr. Buck Teeth Phenomenon

Articular Cartilage

This is the hard cartilage coating the ends of bones within a joint. Its wearing down is a fundamental cause of pain and limited function, leading to a separation between an individual's health span and lifespan.

Menisci

These are critical, rounded tissue structures that sit on top of the tibial plateau in the knee. They contour the flat plateau to fit the rounded femur, helping to distribute contact pressures evenly and provide stability within the knee joint.

Osteoclastic Function

This refers to the process by which osteoclast cells break down or resorb bone. Pharmacological therapies often aim to inhibit this function to slow bone loss.

Osteoblastic Production

This is the process by which osteoblast cells build up bone. While stimulating osteoblasts could build healthier bone, there are concerns about potentially provoking uncontrolled growth, similar to cancer.

Platelet-Rich Plasma (PRP)

PRP is a super-concentrated portion of a patient's own blood, obtained by centrifuging a blood sample. It is rich in healing factors like vascular endothelial growth factor (VEGF) and platelet-derived growth factors, and is injected to stimulate and accelerate healing in injured tissues.

Sham Surgery

A control procedure used in clinical trials where incisions are made, but no actual therapeutic intervention is performed. It helps to blind patients and other care providers to the treatment received, allowing for evaluation of the placebo effect.

Myelomalacia

This term describes an injury to the spinal cord, often visible as a signal change on an MRI. It indicates damage to the spinal cord tissue and can lead to rapid loss of neurological function.

Asymmetric Risk (Spine Surgery)

This concept highlights that while a dramatic intervention like spine surgery might improve a patient's function from, for example, 70% to 90%, it also carries a significant risk of worsening function from 70% to 20% due to the critical nature of the axial skeleton.

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What makes the Hospital for Special Surgery (HSS) a premier orthopedic facility?

HSS is an all-orthopedic hospital with a unique environment that fostered the development of joint replacement and sports medicine, boasting giants in every subspecialty and a high volume of cases dedicated to resident education.

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What is the median career length for an NFL player?

The median tenure for an NFL player is typically short, around three to four years, with running backs and linebackers having even shorter careers due to the attrition and violence of the game.

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Why do athletes in professional sports frequently sustain injuries?

Professional athletes, particularly in football, are 'freak athletes' operating at such a high level of intensity and under immense physical stress that injuries are almost inevitable, often slowing them down just enough to affect their careers.

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What is the primary factor that limits the lifespan of a knee joint?

The wearing down of articular cartilage, the hard coating on the ends of bones, is the fundamental issue that slows people down, causes pain, and leads to the need for interventions like knee replacements.

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How does body weight impact knee joint health?

Every pound of weight gained or lost on the upper body translates to a disproportionately higher load on the knee joint (e.g., four pounds more pressure when walking), making weight management a critical modifiable factor for knee health.

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When does bone density peak, and what happens afterward?

Bone density typically peaks around age 30, after which there is an inevitable decline, accelerated in women during menopause; exercise and pharmacotherapy aim to slow this decline rather than reverse it to peak levels.

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What are common exercise mistakes that lead to orthopedic injuries in adults?

Repetitive exercises with poor form, such as excessive squats and lunges that overload the knee due to over-reliance on quadriceps instead of glutes, and overhead pressing activities that strain the shoulder, are frequent causes of injury.

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How effective is physical therapy compared to surgery for meniscus tears?

Studies suggest that starting with physical therapy for meniscus tears is a reasonable approach, as many patients improve without surgery; however, a subset of patients who don't improve with conservative measures may benefit from surgical intervention.

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What is the current scientific consensus on the efficacy of PRP and stem cell injections for joint regeneration?

While PRP and stem cells show some subjective clinical benefit for tendinopathies and arthritis, rigorous studies have not demonstrated cartilage regrowth, and their effectiveness is often confounded by placebo effects and anti-inflammatory actions rather than true regeneration.

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When is spinal surgery most appropriate for lower back pain?

Spinal surgery is generally reserved for cases with neurological compromise (e.g., weakness) or severe, debilitating conditions like myelomalacia, as it carries significant asymmetric risks, potentially worsening a patient's functional status.

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What key factors should patients consider when choosing an orthopedic surgeon?

Patients should look for surgeons with high surgical volumes, a reputation for effectively managing complications, and a willingness to welcome second opinions, as these traits often indicate a patient-centered approach.

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How can individuals cope with chronic orthopedic injuries or limitations?

Coping involves adapting to a new reality by focusing on what one is still capable of doing rather than dwelling on lost abilities, modulating activity levels to stay within pain thresholds, and engaging in appropriate exercise like swimming or biking if running becomes too difficult.

1. Prioritize Exoskeleton Health

Focus on maintaining the health of your musculoskeletal system (your “exoskeleton”) as a critical component of living better and ensuring a high quality of life, not just extending it.

2. Understand End-of-Life Failures

Reflect on common failures and limitations experienced by people later in life to identify and implement preventative strategies earlier in your own life.

3. Prioritize Injury Prevention

Make injury prevention the paramount rule of exercise, as getting injured can set back your progress significantly and undermine your overall health goals.

4. Minimize Sedentary Time

Actively reduce the amount of time you spend sitting throughout the day, as prolonged sedentary behavior can lead to hamstring shortening and hip flexor tightening, predisposing you to orthopedic injuries during exercise.

5. Move Consistently Throughout Day

Instead of relying solely on one or two dedicated exercise sessions, aim for consistent, generalized movement throughout the majority of your day to foster better orthopedic and musculoskeletal health.

6. Adopt Holistic Orthopedic Health

Improve your orthopedic health by focusing on modifiable factors such as better sleep, stress management, improved nutrition, and more efficient exercise, rather than just isolated treatments.

7. Reduce Joint Pressure Through Weight Loss

Understand that every pound of weight lost can reduce pressure on your knees by four pounds when walking, six pounds when using stairs, and eight pounds when running, significantly mitigating joint strain.

8. Manage Weight and Exercise

Recognize that while cartilage loss is inevitable, you can influence its timing by managing your weight and engaging in appropriate exercise, which are modifiable factors.

9. Build Bone Density in Your 30s

Prioritize weight-bearing exercise, especially in your thirties, to stimulate bone growth and build up bone density before the natural decline in bone mass begins.

10. Exercise Efficiently, Not Excessively

Shift your exercise mindset from simply burning calories or doing high volume to activating your metabolism and moving efficiently, as excessive or inefficient exercise can lead to injury.

11. Avoid Poor Form Under Load

Be highly mindful of your exercise form, especially during repetitive movements and under load, as poor technique is a primary cause of injury, particularly when trying to compensate for a sedentary lifestyle.

12. Seek Expert Exercise Guidance

Work with a knowledgeable trainer to ensure correct exercise form, especially for movements like squats, lunges, and weightlifting, as poor technique is a common cause of repetitive strain injuries.

13. Activate Muscles, Protect Joints

When weight training, aim to activate the target muscle with just enough light weight to initiate contraction, allowing you to voluntarily flex the muscle further without excessively loading the joint, leading to a safer and more effective workout.

14. Protect Back with Micro-Movements

Proactively protect your lower back by consciously adjusting everyday movements, such as squatting to pick up objects or bracing your core when bending, to avoid sudden torque and prevent injury from seemingly minor insults.

15. Caution with Squats and Lunges

Approach squats and lunges with caution, as excessive or improperly executed repetitions can place significant strain on the knee joint, leading to pain, swelling, and cartilage damage if your knees or surrounding muscles aren’t adequately prepared.

16. Master Correct Lunge Form

When performing lunges, ensure your front knee is not under load and that the movement is primarily glute-based, ideally with guidance from a knowledgeable trainer, to prevent anterior knee pain and injury.

17. Prioritize Pulls Over Presses

To reduce joint load and support shoulder health, especially when recovering from or managing shoulder injuries, emphasize pull exercises (e.g., pull-downs, rows) more than press exercises (e.g., bench press, military press).

18. Walk for Cardiovascular Health

Incorporate walking into your routine as a safe and effective way to achieve cardiovascular benefits, minimizing the risk of injury often associated with more intense exercises.

19. Pivot to Alternative Activities

If a beloved activity like running becomes too painful, pivot to alternative, lower-impact exercises such as swimming or biking, focusing on what you can do to maintain activity and cope effectively.

20. Replace Stopped Activities

If you must stop a primary physical activity due to pain or difficulty, actively replace it with alternative forms of exercise to prevent a precipitous decline in your physical quality of life.

21. Adapt Running Technique

If running, consider adapting your technique, such as barefoot running, focusing on lighter steps, or taking shorter strides, to reduce impact on your joints and potentially prolong your ability to run.

22. Preserve Meniscal Tissue

Understand that losing meniscal tissue, even partially, can accelerate the wearing down of hard cartilage in the knee, leading to pain and dysfunction at a younger age.

23. Conservative Labral Tear Treatment

If you have a labral tear identified on an MRI, understand that it’s a common finding even in asymptomatic individuals; prioritize a “test of time” with physical therapy before considering surgery.

24. Start PT for Meniscus Injuries

For meniscus injuries, it is reasonable and often beneficial to begin with physical therapy and conservative management, reserving surgery for those who do not improve with initial non-operative approaches.

25. Allow 1-2 Months for Meniscus PT

If you have a meniscus injury, commit to physical therapy and conservative treatment for at least one to two months, and if you are seeing improvement, continue with that approach.

26. Support Foot Arch with Orthotics

Consider using orthotics to support your foot arch, which can help prevent the stretching and attenuation of the posterior tibialis tendon, a common mechanical issue that leads to foot shape changes and pain over time.

Understand that tendinopathies (e.g., tennis elbow, Achilles tendonitis) commonly arise in your 40s and 50s due to declining blood flow and reparative mechanisms in tendons, indicating a uniform biological problem across various joints.

28. Understand Surgical Setbacks

Recognize that many surgeries, especially complex reconstructions, involve a period of significant setback and that not every patient will fully “bounce back” to a better state than they were before the operation.

29. Extreme Caution for Spine Surgery

Exercise extreme caution when considering elective spine surgery, as even orthopedic surgeons acknowledge the potential for very poor outcomes and significant long-term difficulties.

30. Urgent Spine Neurological Care

If experiencing neurological compromise such as weakness, especially in the cervical spine, seek urgent medical attention as it can rapidly lead to loss of balance, walking ability, and hand function.

31. Select High-Volume Surgeons

When considering complex orthopedic procedures like knee replacement, prioritize surgeons with very high case volumes (e.g., several hundred per year) as this is generally a good indicator of expertise and experience.

32. Inquire About Surgeon Complications

Do not hesitate to ask your surgeon directly about their infection rates, re-operation rates, and other complication statistics; a surgeon unwilling or unable to answer these questions is a red flag.

33. Surgeon Reputation for Complications

Select a surgeon who has a reputation, often through word-of-mouth, for actively addressing and managing complications, as all surgeons encounter them and you want one who will stand by you.

34. Welcome Second Opinions

Choose a surgeon who openly welcomes and encourages you to seek a second opinion, as reluctance to do so can be a significant red flag.

35. Focus on Capabilities to Cope

When facing physical limitations or complications, actively shift your mindset to focus on what you are still capable of doing, rather than dwelling on what you have lost or can no longer do, to improve coping and adaptation.

36. Modulate Activity Threshold

For chronic joint pain, understand your personal activity threshold (where pain or swelling begins) and actively work to modulate it through strengthening exercises, weight management, and education, aiming to stay active right up to that limit.

37. Educate Yourself on Health

Proactively learn about your specific health condition, illness, or injury, as a deeper understanding will significantly improve your ability to cope and manage it effectively.

38. Adapt to New Physical Trajectory

After an intra-articular joint injury, accept that your physical trajectory may change and actively manage it by focusing on what you are still capable of doing, rather than comparing it to your past abilities, to preserve mental and physical health.

39. Cultivate Insightful Questions

Focus on asking thoughtful and insightful questions (“How can I change this?”, “Why does it work this way?”) rather than just seeking answers, as this approach can lead to significant differences and personal growth.

There's no point living longer if you're not living better.

Peter Attia

All I got is time and I'm not wasting it for anybody.

Russ Warren (as told by Eric Chehab)

They're all injured because they're the best guys coming through and they play.

Ronnie Barnes (as told by Eric Chehab)

If football can do for your kid what it did for me, there's no question that I'd let you play.

Curtis Martin (as paraphrased by Eric Chehab)

The ultimate weight training would be to activate the muscle without loading the joint.

Eric Chehab

Most of the time we're measuring pain and function with that. And it might be getting better in the tendon because of the injection itself... Or it might be because there's a placebo effect, or it might be because you're resting...

Eric Chehab

The people that really make the world different aren't the people with all the answers are the people with the questions.

Eric Chehab
Five to six
Bruce Springsteen concerts attended by Eric Chehab First concert was in 1984, kicking off the Born in the USA tour.
12 years old
Age Eric Chehab tore his left ACL ACL reconstruction was in its nascency at the time.
45 minutes to an hour
Typical time for a total hip replacement by Dr. Polici Skin to skin, considered very gifted and efficient.
Three to four years
Median tenure of an NFL player Positionally dependent, with running backs and linebackers having shorter careers.
125 pounds
Maximum weight for JJ's weighted football league For seventh and eighth graders.
4 pounds
Multiplier of body weight load through the knee when walking For every 1 pound of body weight.
6 pounds
Multiplier of body weight load through the knee when going up/down stairs For every 1 pound of body weight.
8 pounds
Multiplier of body weight load through the knee when running For every 1 pound of body weight.
Around 30 years old
Age at which ability to increase bone density through activity declines Women experience accelerated bone loss during menopause.
30% to 40%
Cardiovascular risk reduction from walking According to work by the Harvard School of Public Health.
90%
Likelihood of labral tearing on hip MRI (general population) Often asymptomatic, making it difficult to attribute pain solely to the tear.
Approximately 80%
Likelihood of labral tearing on hip MRI (20-year-olds) Often asymptomatic, making it difficult to attribute pain solely to the tear.
One to two months
Recommended duration for conservative treatment of meniscus injury before considering surgery If pain persists or worsens, surgery may be considered.
$13,000
Cost of three stem cell injections (anecdotal patient experience) Paid cash, with marginal reported benefit.
A couple hundred
Approximate number of stem cells in typical local injections Compared to 10-20 million in animal studies showing benefit.
Greater than 30 per year
Volume considered 'high volume' for knee replacements in some studies Eric Chehab considers 'really high volume' to be around 200 per year.
December 2016
Year of Dr. Eric Weiner's McGuire Memorial Lecture Lecture on breast cancer treatment and the physician's role in helping patients cope.