#232 ‒ Shoulder, elbow, wrist, and hand: diagnosis, treatment, and surgery of the upper extremities | Alton Barron, M.D.
Dr. Alton Barron, an orthopedic surgeon, details the anatomy, common injuries, and treatment options for the upper limb (shoulder, elbow, hand, wrist). He emphasizes the importance of physical exams and discusses his Musician Treatment Foundation.
Deep Dive Analysis
23 Topic Outline
Alton Barron's Path to Orthopedic Surgery
Evolution of Orthopedic Surgery and Advances
Shoulder Anatomy: Bones, Cartilage, Labrum, Rotator Cuff
Understanding Shoulder Instability and Labral Tears
Rotator Cuff Tears: Types, Causes, and Healing
Shoulder Pain Generators and the Role of the Physical Exam
Frozen Shoulder (Adhesive Capsulitis)
Shoulder Pain Originating from the Neck
Surgical Treatments for Labral Tears and Capsular Instability
Rotator Cuff Repair Techniques and Outcomes
Efficacy of PRP and Stem Cells in Orthopedics
AC Joint Separations: Classification and Treatment
Total Shoulder Replacement: Indications and Outcomes
Elbow Anatomy and Common Tendon Injuries
Distal Biceps Tendon Ruptures and Repair
Tommy John Surgery and Throwing Athletes
Hand and Wrist Anatomy: Bones, Ligaments, Nerves
Scaphoid Fractures: Diagnosis and Treatment
Carpal Tunnel Syndrome: Causes and Treatment
Basal Thumb Arthritis and Surgical Reconstruction
Trigger Finger: Causes and Treatment
Nerve Compression Syndromes and Referred Pain in Upper Limb
The Musician Treatment Foundation (MTF)
10 Key Concepts
Shoulder Stability
A delicate balance between mobility and stability, primarily achieved through soft tissues like the labrum, ligaments, and rotator cuff muscles, rather than intrinsic bony stability. The shoulder joint is often likened to a 'golf ball on a tee' due to its shallow socket.
Labrum
A rubbery, calamari-like fibro-osseous structure around the shoulder socket (glenoid) that enhances static stability by effectively creating a suction cup effect with the humeral head. Tears in the labrum can disrupt this suction and lead to instability.
Rotator Cuff
A group of four muscles (supraspinatus, subscapularis, infraspinatus, teres minor) and their tendons that surround the shoulder joint, providing dynamic stability and facilitating movement. Tears can be degenerative or traumatic, partial or full thickness.
Adhesive Capsulitis (Frozen Shoulder)
A common, multifactorial condition characterized by intense inflammation and thickening of the inner lining of the shoulder joint capsule, leading to significant stiffness and pain. It can be primary (spontaneous) or secondary to other shoulder issues.
Double Crush Syndrome
A phenomenon where a nerve, already compressed or disrupted in one area (e.g., the neck), becomes more susceptible to milder compression in another area further down the limb (e.g., carpal tunnel in the wrist or cubital tunnel in the elbow).
Scaphoid Bone
A carpal bone in the wrist known for being the hardest bone to heal in the body due to its retrograde blood supply and being almost entirely covered by cartilage, making it prone to non-union if fractured.
Carpal Tunnel Syndrome
Compression of the median nerve within the carpal tunnel in the wrist, caused by a space-occupying lesion (like swelling or inflammatory tissue) in the confined tunnel formed by carpal bones and the transverse carpal ligament. Symptoms include numbness and tingling in the thumb, index, middle, and half of the ring finger.
Trigger Finger
A condition where inflammation and nodular swelling in a flexor tendon sheath, typically in the palm, cause the tendon to catch as it glides through a pulley, resulting in a 'triggering' sensation or locking of the finger.
Nursemaid's Elbow
A common injury in children where the radial head at the elbow subluxes (slips out) due to a sudden pull on the arm, often from being yanked by a parent. It can be quickly reduced with a specific maneuver.
Carrying Angle
A natural valgus (away from the body) angle of 12 to 15 degrees built into the elbow joint, which helps to keep carried objects away from the body and allows for more efficient carrying of heavy items.
15 Questions Answered
The shoulder joint is intrinsically unstable, designed more for mobility than stability, often likened to a 'golf ball on a tee' rather than a true ball-and-socket joint, making it susceptible to dislocations and soft tissue injuries.
The labrum is a rubbery structure around the shoulder socket that deepens it slightly and acts like a suction cup, providing static stability to the joint.
The rotator cuff is a group of four muscles (supraspinatus, subscapularis, infraspinatus, teres minor) and their tendons that surround the shoulder joint, enabling movement and providing dynamic stability.
Studies on asymptomatic rotator cuff tears suggest they do not heal spontaneously; at best, a subset of them remain the same size, while larger tears are more likely to grow and become symptomatic over time.
A good history, understanding injury mechanics, and a thorough physical examination can achieve 95% accuracy in diagnosing shoulder problems without an MRI, which is often used more for corroboration.
Surgery is not always necessary for rotator cuff tears, especially if asymptomatic. However, it's considered if the tear causes significant pain, functional limitation, or if it's likely to progress and lead to worse outcomes, particularly in active individuals.
Frozen shoulder is a condition characterized by intense inflammation and thickening of the shoulder joint capsule, leading to severe stiffness and pain, often occurring spontaneously or secondary to other shoulder issues.
Yes, pain originating from pinched nerves in the lower cervical spine (neck) can radiate to the shoulder and even down the arm and into the hand, often going below the elbow, which is rare for intrinsic shoulder pathology.
While conceptually promising, current literature, including double-blind randomized studies, generally shows no significant benefit of PRP over placebo for conditions like tennis elbow, and there's insufficient high-quality data to definitively prove their efficacy for rotator cuff tears or other tendon ruptures.
The primary indication for total shoulder replacement is pain that significantly limits function and is not adequately managed by conservative treatments, especially in active individuals, regardless of age.
Tennis elbow (lateral epicondylitis) involves inflammation of tendons on the outside of the elbow, often associated with one-handed backhands. Golfer's elbow (medial epicondylitis) involves inflammation of tendons on the inside of the elbow, historically linked to overhitting or duffing in golf, but now also seen in tennis players using aggressive topspin.
The distal radius fracture, which is a break in the larger forearm bone near the wrist, is the most common fracture in the wrist.
The scaphoid bone has a precarious blood supply (retrograde flow) and is largely covered by cartilage, making it difficult to heal if fractured, often leading to non-union if not properly managed.
Carpal tunnel syndrome typically presents with numbness and tingling in the palm side of the thumb, index, middle, and half of the ring finger, often exacerbated by wrist flexion or swelling.
The MTF is a non-profit organization founded by Dr. Alton Barron that provides direct orthopedic shoulder, elbow, and hand interventions, along with non-surgical care, to uninsured and underinsured professional musicians.
48 Actionable Insights
1. Consider Surgical Decision Asymmetry
When contemplating surgery, remember that choosing not to operate preserves all future options, whereas surgery permanently alters the operative field and subsequent interventions. Prioritize a pause to fully evaluate the decision.
2. Don’t Rely Solely on MRI
Never make clinical, especially surgical, decisions based solely on an MRI. A thorough patient history, including injury mechanics and usage patterns, combined with a comprehensive physical examination, is crucial for accurate diagnosis.
3. Provide Detailed Injury History
Offer your doctor a meticulous account of your injury’s mechanics, how you use your body, and the specific symptoms you experience. This detailed history, alongside a physical exam, can lead to 95% diagnostic accuracy without an MRI.
4. Prioritize Function Over Pain
When evaluating orthopedic injuries, especially rotator cuff tears, consider surgical intervention not just for acute pain but also for significant functional impairment. Maintaining vitality and desired activity levels can be a primary indication for repair, even if pain is not severe.
5. Collaborate on Treatment Decisions
Engage in a shared decision-making process with your surgeon, understanding that treatment plans should be a conversation. Your input, knowledge, and preferences, combined with their expertise and your specific condition, are vital.
6. Manage Frozen Shoulder Non-Surgically
For adhesive capsulitis (frozen shoulder), focus on controlling inflammation, engaging in consistent physical therapy, and adhering to a home exercise program, as approximately 80% of cases can resolve without surgery.
7. Tailor Frozen Shoulder Treatment
If you have shoulder stiffness but retain decent motion, begin with physical therapy to stretch out the joint. However, if motion is severely limited and painful, a cortisone injection may be necessary first to reduce pain and enable effective physical therapy.
8. Differentiate Shoulder vs. Neck Pain
If shoulder pain radiates below the elbow and into the hand, it is highly indicative of a neck (cervical spine) origin rather than an intrinsic shoulder problem, which typically does not extend past the elbow.
9. Proactive Rehab for Predisposition
If you are aware of an anatomical predisposition to injury, such as a narrow C-spine or a Type 3 acromion, proactively engage in rehabilitative exercises to strengthen supporting structures and mitigate future injury risk.
10. Manage Type 3 Acromion Risk
If you have a Type 3 (bird beak) acromion, be cautious with repetitive overhead activities, as this anatomical shape can irritate the bursa and rotator cuff tendon, predisposing you to bursitis and tears.
11. Screen for Spinal Canal Narrowing
If you experience a ‘stinger’ (nerve injury) during contact sports, get screened for a congenitally narrow spinal canal. This condition significantly increases the risk of catastrophic spinal cord injury with further impact.
12. Choose Sports for Hypermobility
If you have hypermobile (loose) joints, select sports and activities that allow for dynamic stabilization and avoid those that subject the joints to excessive or unnatural forces, to prevent recurrent injury.
13. Recognize Pain-Induced Weakness
If you experience weakness during specific lifting movements, especially when fatigued, it may not be true muscle weakness but rather your brain’s protective response to prevent injury or overstressing a compromised joint.
14. Prednisone for Neck Symptoms
For neck-related symptoms (e.g., tingling, mild pain) without significant motor weakness, a short course of low-dose prednisone may resolve the issue, potentially avoiding the need for extensive imaging and associated anxiety.
15. Monitor Asymptomatic Rotator Cuff Tears
Be aware that asymptomatic rotator cuff tears do not heal spontaneously; larger tears are more likely to progress in size and eventually become symptomatic over time.
16. Manage Rotator Cuff Inflammation
For small rotator cuff tears, consider managing inflammation first if the tear is not yet biomechanically significant, as symptoms may stem from inflammation rather than the tear itself.
17. Skepticism for PRP/Stem Cells
Approach claims about PRP (Platelet-Rich Plasma) and stem cell injections for common orthopedic conditions like rotator cuff tears or epicondylitis with skepticism, as robust scientific evidence for their widespread effectiveness is often lacking.
18. Wait-and-See for AC Separation
For certain AC (acromioclavicular) joint separations, such as Type 3, waiting a few weeks to assess symptoms before deciding on surgery does not negatively impact the outcome and may allow for non-operative recovery.
19. Shoulder Replacement for Pain
Consider total shoulder replacement primarily for chronic pain that significantly limits function and quality of life, rather than solely for severe arthritis visible on X-rays, as many with advanced arthritis remain asymptomatic.
20. Avoid Heavy Lifting Post-Shoulder Replacement
After a total shoulder replacement, avoid heavy weightlifting, particularly movements like bench press and iron cross, to protect the longevity and integrity of the implant.
21. First-Line Treatment for Epicondylitis
For tennis elbow (lateral epicondylitis) or golfer’s elbow (medial epicondylitis), begin treatment with rest, consistent stretching, and oral NSAIDs, as these conservative measures are often effective.
22. Cortisone for Severe Epicondylitis
If epicondylitis pain is severe, limiting elbow movement and causing significant inflammation, a low-dose cortisone injection can help cool down the inflammation and enable more effective stretching and rehabilitation.
23. Gradual Return to Activity
When resuming physical activities after a break, gradually increase intensity and duration to prevent overuse injuries like epicondylitis, which often occur when individuals overdo it too quickly.
24. Strengthen for Epicondylitis
For epicondylitis, if grip strength exercises are tolerable with minimal pain, prioritize a program of stretching and strengthening, as this can often cure the condition.
25. Tommy John for Elite Throwers Only
Understand that Tommy John surgery (ulnar collateral ligament reconstruction) is an operation specifically designed for elite throwing athletes with a torn ligament, not for non-athletes or to artificially increase throwing velocity.
26. Prompt Scaphoid Fracture Evaluation
If you experience wrist pain after a fall, especially as an athlete, seek prompt medical evaluation. Scaphoid fractures can be subtle and easily missed on initial X-rays, but early diagnosis is crucial for proper healing.
27. Scaphoid Fracture Healing Time
Be aware that scaphoid fractures take significantly longer to heal (10-12 weeks) than other bones due to their unique, retrograde blood supply, which is easily disrupted by injury.
28. Splint for Non-Displaced Scaphoid
For non-displaced scaphoid fractures, immobilization with a splint that supports the wrist while leaving the thumb and fingers free can allow the bone to heal without surgical intervention.
29. Scaphoid Repair Recovery Times
Following percutaneous scaphoid fracture repair, expect to return to activities like catching a ball in about six weeks, with some professionals (e.g., surgeons) able to resume work within a week.
30. Splint Wrist in Neutral Position
When immobilizing the wrist, ensure it is placed in a neutral position (slight extension) to prevent increased pressure on the median nerve in the carpal tunnel, which can lead to acute carpal tunnel syndrome.
31. Musician-Specific Splint Position
If you are a musician requiring wrist immobilization, discuss with your doctor the possibility of splinting your hand in a specific position that allows you to continue playing your instrument.
32. Use Hands for Cognitive Vitality
Actively engage your hands in meaningful tasks to maintain cognitive vitality, as over 60% of higher cortical neurons are dedicated to hand function, and hand use stimulates brain activity.
33. Handwrite for Brain Stimulation
Prioritize handwriting over typing for tasks like essay writing, as studies show it stimulates more cortical activity, leading to longer sentences, richer vocabulary, and more ideas generated faster.
34. Verify Carpal Tunnel Numbness
To self-assess for carpal tunnel syndrome, confirm that numbness and tingling are specifically located in the palm side of the thumb, index finger, middle finger, and typically half of the ring finger.
35. Ergonomics for Carpal Tunnel
If you have carpal tunnel syndrome, pay close attention to your ergonomic setup and posture, as repetitive activities and poor positioning can significantly exacerbate symptoms.
36. Brain Protects Grip Strength
Be aware that a sudden decrease in perceived strength during novel or challenging grip exercises (e.g., fewer fingers) might be your brain’s protective mechanism to prevent overstressing tendons, rather than a true loss of muscle strength.
37. Prioritize Ulnar Nerve for Grip
To maximize overall grip strength, focus on exercises that engage the pinky and ring fingers, as the ulnar nerve, which controls these digits, is disproportionately important for powerful grip.
38. Early Intervention for Trigger Finger
For trigger finger, seek early intervention, ideally within six weeks of onset, as one or two cortisone injections can achieve a 75% cure rate.
39. Limit Cortisone Injections
Limit cortisone injections to a maximum of three per tendon sheath over its lifetime to prevent soft tissue degradation and potential tendon ruptures.
40. Urgent Care for Infected Tendon
Seek immediate medical attention for a finger that is swollen, exquisitely tender along its sheath, and held in a flexed position, as these are signs of suppurative tenosynovitis, an orthopedic emergency.
41. Recognize Double Crush Syndrome
If you experience numbness, tingling, or pain in multiple nerve distributions (e.g., median and radial nerves) along with neck stiffness, consider ‘double crush’ syndrome, where nerve compression occurs at both the neck and a distal site.
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43. Bring Scientific Articles to Doctor
Engage proactively with your healthcare provider by bringing relevant scientific articles you’ve researched, as well-informed patients can contribute to the diagnostic and treatment process.
44. Prevent Rotator Cuff Atrophy
If you have a rotator cuff tear, even if currently asymptomatic, consider repair to prevent muscle atrophy and preserve long-term function, especially if you wish to maintain your current activity levels.
45. Reassess New Shoulder Symptoms
Do not ignore the onset of new shoulder symptoms after a period of being asymptomatic; this indicates a change in your anatomical or physiological state and warrants reassessment.
46. Prioritize Biological Over Chronological Age
When making medical decisions, especially regarding surgery, assess an individual’s biological age and physiological condition rather than solely relying on chronological age, as modern individuals are often physiologically younger.
47. Incorporate Rucking for Strength
Consider incorporating rucking (walking with a weighted backpack) into your fitness routine 2-3 times a week, as it can significantly improve overall body strength and lightness, even at an older age.
48. Support Musician Treatment Foundation
Visit mtfusa.org to learn more about and get involved with the Musician Treatment Foundation, a non-profit providing free orthopedic care to uninsured and underinsured professional musicians.
11 Key Quotes
The exam and the symptoms matter usually more than what the image shows.
Peter Attia
When we went from the ball and socket joints or the very stable, simple hinge joints to these cup and saucer type joints, specifically the shoulder, which is intrinsically very unstable... we use an analogy that's slightly off, but a golf ball on a tee.
Alton Barron
A good history... a combination of the mechanism, but also their symptoms when they have them, and then their examination... you will be 95% accurate without any MRI.
Alton Barron
Walking down the street, half the people age 60 have rotator cuff tears. Half the people over 60 have an asymptomatic torn rotator cuff.
Alton Barron
The single most important thing that you will learn is when to operate and when not to operate.
Peter Attia
Once you have surgery, it's not that you can't have surgery again, but the operative field never looks the same a second time.
Peter Attia
My dad... at 86, a guy who could still do pull-ups, who was still swimming in the lake... ripped off two and a half of his four tendons. He was planning to come up to New York to visit and we did a little FaceTime and he couldn't lift his arm. It was like this. And he's 86, but healthy, never took a medication... So I said, dad, you need to come up early. We're going to need to fix this.
Alton Barron
I have full thickness tears in people that are minimally symptomatic and partial thickness tears that are very symptomatic.
Alton Barron
Over 60% of our higher cortical neurons are devoted just to our hand through the homunculus.
Alton Barron
Musicians are people too. So they do all the stupid things that we all do to injure ourselves.
Alton Barron
In a typical one Mozart violin concerto, it's 20,000 bow strokes in one playing violin concerto.
Alton Barron
4 Protocols
Nursemaid's Elbow Reduction Maneuver
Alton Barron- Supinate the forearm (turn palm up).
- Apply a little pressure to the radial head.
- Flex the elbow up while maintaining supination.
Carpal Tunnel Syndrome Initial Management (for non-surgical candidates)
Alton Barron- Rest the wrist.
- Use NSAIDs by mouth.
- Consider a single, low-dose cortisone injection if pain is severe and limits motion, especially if physical therapy is not feasible due to pain.
- Engage in physical therapy focused on mobility and stretching.
Scaphoid Fracture Initial Management (non-displaced)
Alton Barron- Immobilize the wrist (at least a splint, possibly a cast).
- Allow 10-12 weeks for healing.
- Start movement earlier if treated surgically (percutaneous screw fixation).
Trigger Finger Initial Management (within 6 weeks of onset)
Alton Barron- Rest the affected finger.
- Consider one or two cortisone injections into the tendon sheath.