28
SASholder joint
@saptarshi1111
#Triangular Interval Anatomy
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Reel di Tendenza
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PHSupraspinatus Tendinitis..
👉🏻Supraspinatus tendinitis is a common cause of shoulder pain. It affects the supraspinatus tendon, one of the four rotator cuff tendons, and usually causes pain during overhead arm movements.
⚡Anatomy & Function
The supraspinatus muscle:
Starts from the shoulder blade (scapula)
Attaches to the upper arm bone (humerus)
Its main jobs are:
Lifting the arm at the start (first 15° of abduction)
☑️ Keeping the shoulder joint stable during movement
The tendon passes through a narrow space under the acromion, making it prone to irritation and compression. What Really Happens? (Pathophysiology) Although it is called tendinitis, most cases involve tendon wear and weakness, not true inflammation. This condition is better called supraspinatus tendinopathy,
caused by:
☑️Repeated overuse Poor tendon healing
☑️ Reduced blood supply
☑️ Compression during arm elevation If ignored
, it can lead to partial or complete tendon tears. ☑️Common Causes & Risk Factors Repeated overhead activities (sports, lifting, work)
☑️Poor posture (rounded shoulders, slouched back) Shoulder impingement
☑️ Weak or imbalanced shoulder muscles
☑️ Increasing age
☑️Sudden increase in activity Symptoms (What Patients Feel)
☑️Pain on the outer side of the shoulder Pain when lifting the arm or reaching overhead
☑️Night pain, especially when lying on the affected side
☑️Pain between 60°-120° of arm lifting (painful arc)
☑️ Shoulder weakness Chronic cases may also develop stiffness and reduced function.
☑️Physical Examination Findings Tenderness over the shoulder Pain with resisted arm lifting Positive Empty Can (Jobe) test Pain during Neer or Hawkins-Kennedy tests
☑️ Reduced strength due to pain Investigations (If Needed)
☑️ Ultrasound - Shows tendon thickening or small tears
☑️ MRI Confirms tendon damage or bursitis
☑️ X-ray - Usually normal; may show bone spurs
👉🏻 Imaging is not always necessary if clinical signs are clear.
Treatment & Management
Conservative Treatment (Best First Option) Relative rest
☑️ Avoid painful overhead movements ☑️ Ice for pain relief.
@physiosolutions.7
☑️Short-term pain medication if required #reels #trending #instagood
@physiosolutions.7
825.9K
PHEver seen the Rotator Cuff in REAL action? 👀🔥
This clip shows how beautifully the shoulder stabilizers work together!
🔹 In = Infraspinatus
🔹 T< = Teres minor
🔹 T> = Teres major
These deep muscles are the true heroes behind shoulder rotation, stability & athletic movement 💪✨
Save this for your anatomy revision & share with a physiotherapy friend! 🧠📚
#physiotherapy #anatomy #shouldermuscles #rotatorcuff #medstudent #mbbs #ptstudent #fitnessanatomy #orthopedics #physioknowledge
@physioknowledge1
115
ROSupraspinatus Tendinitis ...
@rohitsingh1916
186
130.1K
ALRotator cuff muscle
#rotatorcuff
#anatomy
#muscle
@all_about_radiology2.0
27.3K
MIPain is region and context specific.
Not tissue specific.
If someone points to the front of their shoulder, a lot of good clincians immediately jump to “biceps tendonitis.”
Simple.
Clean.
Also wrong more often than not.
Because the shoulder doesn’t work in isolation.
And pain doesn’t follow anatomical boundaries as neatly as textbooks suggest.
Anterior shoulder pain can come from:
-how the scapula is moving (or not moving)
-how the humeral head is centering under load
-thoracic position and control
-rotator cuff contribution
-global load management and fatigue
-referred pain from the cervical spine/nerve irritation
In fact, when shoulders hurt...they usually hurt in the front or on top...
so pain is hardly a useful biomarker in the assessment process.
Sometimes the biceps tendon is involved.
Sometimes it’s just the victim, not the culprit.
This is where good assessment actually matters.
Not special tests for the sake of tests. (Most of them are BS btw..)
Not fancy diagnoses to sound smart.
But asking better questions:
- What movements provoke it?
- Under what loads?
- At what speeds?
- With what positions?
- And what changes it when we modify?
(context questions)
Because there’s a real cost to a lazy label.
If you tell an athlete they have “biceps tendonitis,”
and the program becomes endless rest, ice, and avoiding load…
or worse, they start attacking their bicep feverishly...
You’ve probably just derailed the very process that would help them.
Treating pain by location alone is like fixing a car by where the noise comes from.
Good rehab isn’t how well you can name something before the doctor or MRI does...
It’s about untangling the contributing factors actually driving it.
Assessment creates options.
Bad labels create limits.
Nothing works unless you do.💪
@mikestella_atc
166
SUHere is a clear and simple explanation of the origin, insertion (distribution), and function of the three main nerves of the upper limb:
🦴 1️⃣ Radial Nerve
🔹 Origin
• Arises from the posterior cord of the
Brachial Plexus
• Nerve roots: C5, C6, C7, C8, T1
🔹 Insertion / Distribution
• Supplies posterior arm
• Supplies posterior forearm
• Sensory supply to:
• Back of arm
• Back of forearm
• Dorsum of hand (lateral side)
🔹 Function
✅ Extension of elbow (triceps)
✅ Extension of wrist (wrist extensors)
✅ Extension of fingers
✅ Supination of forearm
👉 Known as “Extensor nerve of upper limb”
🦴 2️⃣ Median Nerve
🔹 Origin
• Formed from lateral and medial cords of the
Brachial Plexus
• Nerve roots: C5, C6, C7, C8, T1
🔹 Insertion / Distribution
• Supplies most flexor muscles of forearm
• Supplies thenar muscles
• Sensory supply to:
• Lateral palm
• Thumb, index, middle & half of ring finger
🔹 Function
✅ Wrist flexion
✅ Finger flexion
✅ Thumb opposition
✅ Pronation of forearm
👉 Known as “Nerve of precision grip”
🦴 3️⃣ Ulnar Nerve
🔹 Origin
• Arises from medial cord of the
Brachial Plexus
• Nerve roots: C8, T1
🔹 Insertion / Distribution
• Supplies:
• Flexor carpi ulnaris
• Medial half of flexor digitorum profundus
• Most intrinsic hand muscles
• Sensory supply to:
• Medial hand
• Little finger
• Half of ring finger
🔹 Function
✅ Fine hand movements
✅ Finger abduction & adduction
✅ Power grip
👉 Known as “Nerve of intrinsic hand muscles”
#instagram #trending #physiotherapy #healthylifestyle #viral
@sudhaphysiocare
4.6K
DR🔹 LearnMuscles.com 🔹
Excellence-in-education
✨ The isolated pull of the deltoid would not abduct the arm at the GH joint. Rather, it would pull the humerus straight up into the acromion process, impinging the soft tissues located between the two bones.
These tissues are the rotator cuff supraspinatus tendon, the subacromial bursa, and the tendon or the long head of biceps brachii.
When this occurs, it is called Shoulder Impingement Syndrome.
For the deltoid to create abduction, we need the synergistic pull of the rotator cuff musculature, which pulls the proximal head of the humerus down so that the distal shaft of the humerus can lift up into abduction.
Importance?
If the rotator cuff musculature is weak / overly inhibited / dysfunctional in any way, the humeral head is not stabilized down and instead lifts up into acromion… impingement syndrome!
.
.
🚨Need quick, clear anatomy info?
Get FREE full access to LearnMuscles.com A–Z Anatomy Online Encyclopedia—your go-to guide for muscles, joints, bones, biomechanics + more!
Easy to use, no logins, no paywalls—just click, search, and learn. Perfect for students, therapists, and anatomy nerds who want straight answers, fast.
📚 Tap the link in bio and bookmark it. You’ll use it all the time
.
🚨Please note that the use of this artwork requires proper credit to be given (Permission: Dr. Joe Muscolino. www.learnmuscles.com – art work Giovanni Rimasti)
#LMCE #ContinuingEducation #Anatomy #Physiology
@drjoemuscolino
196
PHUnderstanding the origin, insertion & actions of rotator cuff muscles is key to mastering shoulder anatomy.Save & share with your study partner 📚
@physio_arti
298.4K
DRThe 6 extensor compartments of the wrist and why they matter clinically 👩⚕️
1️⃣ 1st compartment (APL, EPB) → Radial styloid pain = think De Quervain’s. Stenosing tenosynovitis under a tight retinaculum. *Note the superficial radial nerve is here so be careful not to injure it during a corticosteroid injection*
2️⃣ 2nd (ECRL, ECRB) → Dorsal forearm pain 4–6 cm proximal to wrist = Intersection syndrome. Friction where 1st crosses 2nd.
3️⃣ **NOTE I misspoke in the video, it is the Extensor Pollicus Longus, not Hallicus.** 3rd (EPL) → Loss of thumb IP extension, especially post–distal radius fracture = EPL rupture over Lister’s tubercle.
4️⃣ 4th (EDC, EI) → Dorsal synovitis in inflammatory arthritis → tendon attrition/rupture.
5️⃣ 5th (EDM) → Isolated small finger extension pain = think EDM stenosis or subluxation.
6️⃣ 6th (ECU) → Ulnar-sided wrist pain with supination/extension = ECU tendinopathy or instability (often mistaken for TFCC).
Small compartments. Millimeters of glide. Major functional consequences.
Anatomy isn’t just memorization, it’s pattern recognition🤓
#Anatomy #PMR #SportsMedicine #HandPain #InterventionalPain MedEd MovementIsMedicine
@drsunnyandrews
30.0K
BRThe rotator cuff is a functional anatomical unit of four muscles that surround the glenohumeral joint.
They attach the scapula to the humerus and act together to generate rotation, assist elevation, and provide dynamic stability by compressing the humeral head into the glenoid during movement.
Importantly, the cuff does not work in isolation. Shoulder elevation, for example, is a coordinated interaction between cuff muscles, deltoid, scapular musculature and thoracic movement. All contributing muscles fire together rather than in a simple sequential pattern.
⸻
Supraspinatus
Origin: Supraspinous fossa of scapula
Insertion: Greater tubercle of humerus
Innervation: Suprascapular nerve (C5–C6)
Function: Contributes to abduction of the arm at the glenohumeral joint and compresses the humeral head into the glenoid. It does not act alone in abduction; it works in coordination with the deltoid and other cuff muscles.
⸻
Infraspinatus
Origin: Infraspinous fossa of scapula
Insertion: Greater tubercle of humerus
Innervation: Suprascapular nerve (C5–C6)
Function: External rotation of the arm and dynamic stabilization of the humeral head.
⸻
Teres Minor
Origin: Lateral border of scapula
Insertion: Greater tubercle of humerus
Innervation: Axillary nerve (C5–C6)
Function: External rotation and assists with adduction; contributes to posterior stability of the joint.
⸻
Subscapularis
Origin: Subscapular fossa (anterior surface of scapula)
Insertion: Lesser tubercle of humerus
Innervation: Upper and lower subscapular nerves (C5–C7)
Function: Internal rotation of the arm and anterior stabilization of the humeral head.
⸻
Clinical Perspective
Rotator cuff injuries can affect:
• Active range of motion
• Load tolerance
• Strength in rotation and elevation
• Endurance in overhead activity
Symptoms often present as lateral shoulder pain, especially during elevation or external rotation under load. Dysfunction does not necessarily mean complete tear; irritation, tendinopathy, or load sensitivity are far more common presentations in clinical practice.
@bradley_blair_osteopath
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