Anatomy clinical correlates: Clavicle and shoulder

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Anatomy clinical correlates: Clavicle and shoulder

Prerequisite basic sciences

Prerequisite basic sciences

Anatomy clinical correlates: Anterior and posterior abdominal wall

Anatomy clinical correlates: Inguinal region

Anatomy clinical correlates: Peritoneum and diaphragm

Anatomy clinical correlates: Viscera of the gastrointestinal tract

Anatomy clinical correlates: Other abdominal organs

Appendicitis: Pathology review

Complications during pregnancy: Pathology review

Diverticular disease: Pathology review

Gallbladder disorders: Pathology review

GERD, peptic ulcers, gastritis, and stomach cancer: Pathology review

Inflammatory bowel disease: Pathology review

Mood disorders: Pathology review

Pancreatitis: Pathology review

Anatomy clinical correlates: Female pelvis and perineum

Cervical cancer: Pathology review

Complications during pregnancy: Pathology review

Uterine disorders: Pathology review

Anatomy clinical correlates: Heart

Anatomy clinical correlates: Mediastinum

Anatomy clinical correlates: Pleura and lungs

Anatomy clinical correlates: Thoracic wall

Aortic dissections and aneurysms: Pathology review

Coronary artery disease: Pathology review

Deep vein thrombosis and pulmonary embolism: Pathology review

GERD, peptic ulcers, gastritis, and stomach cancer: Pathology review

Pleural effusion, pneumothorax, hemothorax and atelectasis: Pathology review

ECG cardiac infarction and ischemia

Pigmentation skin disorders: Pathology review

Skin cancer: Pathology review

Papulosquamous and inflammatory skin disorders: Pathology review

Anatomy clinical correlates: Pleura and lungs

Anatomy clinical correlates: Thoracic wall

GERD, peptic ulcers, gastritis, and stomach cancer: Pathology review

Lung cancer and mesothelioma: Pathology review

Nasal, oral and pharyngeal diseases: Pathology review

Obstructive lung diseases: Pathology review

Pneumonia: Pathology review

Tuberculosis: Pathology review

Chest X-ray interpretation: Clinical sciences

Amnesia, dissociative disorders and delirium: Pathology review

Cerebral vascular disease: Pathology review

Dementia: Pathology review

Electrolyte disturbances: Pathology review

Mood disorders: Pathology review

Hypothyroidism: Pathology review

Mood disorders: Pathology review

Anatomy clinical correlates: Facial (CN VII) and vestibulocochlear (CN VIII) nerves

Cardiomyopathies: Pathology review

Cerebral vascular disease: Pathology review

Heart blocks: Pathology review

Supraventricular arrhythmias: Pathology review

Valvular heart disease: Pathology review

Ventricular arrhythmias: Pathology review

Vertigo: Pathology review

ECG axis

ECG cardiac hypertrophy and enlargement

ECG intervals

ECG normal sinus rhythm

ECG QRS transition

ECG rate and rhythm

Kidney stones: Pathology review

Sexually transmitted infections: Vaginitis and cervicitis: Pathology review

Sexually transmitted infections: Warts and ulcers: Pathology review

Urinary tract infections: Pathology review

Central nervous system infections: Pathology review

Nasal, oral and pharyngeal diseases: Pathology review

Pneumonia: Pathology review

Shock: Pathology review

Urinary tract infections: Pathology review

Anatomy clinical correlates: Anterior blood supply to the brain

Anatomy clinical correlates: Temporal regions, oral cavity and nose

Central nervous system infections: Pathology review

Cerebral vascular disease: Pathology review

Headaches: Pathology review

Traumatic brain injury: Pathology review

Vasculitis: Pathology review

Anatomy clinical correlates: Arm, elbow and forearm

Anatomy clinical correlates: Axilla

Anatomy clinical correlates: Bones, fascia and muscles of the neck

Anatomy clinical correlates: Bones, joints and muscles of the back

Anatomy clinical correlates: Clavicle and shoulder

Anatomy clinical correlates: Foot

Anatomy clinical correlates: Hip, gluteal region and thigh

Anatomy clinical correlates: Knee

Anatomy clinical correlates: Leg and ankle

Anatomy clinical correlates: Median, ulnar and radial nerves

Anatomy clinical correlates: Wrist and hand

Seronegative and septic arthritis: Pathology review

Apnea, hypoventilation and pulmonary hypertension: Pathology review

Deep vein thrombosis and pulmonary embolism: Pathology review

Heart failure: Pathology review

Nephrotic syndromes: Pathology review

Renal failure: Pathology review

Anatomy clinical correlates: Anterior and posterior abdominal wall

Anatomy clinical correlates: Bones, joints and muscles of the back

Anatomy clinical correlates: Vertebral canal

Aortic dissections and aneurysms: Pathology review

Back pain: Pathology review

Anatomy clinical correlates: Inguinal region

Anatomy clinical correlates: Male pelvis and perineum

Penile conditions: Pathology review

Prostate disorders and cancer: Pathology review

Testicular and scrotal conditions: Pathology review

Testicular tumors: Pathology review

Anatomy clinical correlates: Pleura and lungs

Coronary artery disease: Pathology review

Obstructive lung diseases: Pathology review

Pleural effusion, pneumothorax, hemothorax and atelectasis: Pathology review

Bronchodilators: Beta 2-agonists and muscarinic antagonists

Bronchodilators: Leukotriene antagonists and methylxanthines

Pulmonary corticosteroids and mast cell inhibitors

Anatomy clinical correlates: Ear

Anatomy clinical correlates: Temporal regions, oral cavity and nose

Nasal, oral and pharyngeal diseases: Pathology review

Sexually transmitted infections: Vaginitis and cervicitis: Pathology review

Assessments

Anatomy clinical correlates: Clavicle and shoulder

USMLE® Step 1 questions

0 / 8 complete

USMLE® Step 2 questions

0 / 9 complete

Questions

USMLE® Step 1 style questions USMLE

of complete

USMLE® Step 2 style questions USMLE

of complete

A 44-year-old man presents to his primary care physician with worsening left shoulder pain. He can no longer do bench presses or shoulder presses at the gym due to weakness and pain. The pain is primarily located over the lateral shoulder, is worse at night, and is preventing him from obtaining adequate rest. Past medical history is otherwise unremarkable. He has no history of recent trauma or surgeries to the left shoulder. The patient subsequently undergoes a MRI of the left shoulder, which reveals the following:  


Image reproduced from Radiopedia  
Which of the following physical examination maneuvers is most likely to yield a positive test, given this patient’s clinical findings?  

Transcript

Our upper limbs are complex structures. They’ve got bones, muscles, fascia, nerves and blood vessels, and everything in between. Our upper limbs are prone to injury however, and oftentimes, even a small injury can have a huge functional deficit as we are so reliant on our upper limbs in everyday life. One of these commonly injured areas is the shoulder region.

Ok, so let’s start by taking a look at the injuries of the clavicle. Because of its subcutaneous position, the clavicle is prone to fractures, which are usually the result of direct or indirect trauma. An example of direct trauma is falling directly on the shoulder. Indirect trauma, however, may occur when falling on an outstretched hand, and the force of impact is transmitted through the bones of the forearm and the arm to the shoulder, which can result in a clavicle fracture. Most of these fractures occur in the middle third of the clavicle, particularly where the middle third meets the lateral third, which is the weakest point of the clavicle.

So with clavicular fractures, the medial fragment is usually pulled up by the sternocleidomastoid muscles, which can be apparent to the naked eye and palpable. At the same time, the trapezius muscle is having trouble holding the lateral fragment up, because of the weight of the limb, so the shoulder drops. And since the two fragments may glide under each other, the clavicle is also shortened. Additional features may signal complications of a clavicle fracture. For example, if the skin above the fracture seems to be tenting, meaning it looks like a tent, that suggests the fracture may become an open fracture in the future, and warrants surgical stabilization.

Alright, now, another thing that can happen in this region is an acromioclavicular dislocation, also called a “shoulder separation”. Just like the name says, the clavicle and acromion process separate, usually because of a direct blow to the shoulder, or a fall landing directly on the shoulder joint. And this may be seen in contact sports, like football, soccer or hockey.

Sources

  1. "Clavicle fractures" Orthopaedics & Traumatology: Surgery & Research (2017)
  2. "Bedside Ultrasound Diagnosis of Clavicle Fractures in the Pediatric Emergency Department" Academic Emergency Medicine (2010)
  3. "Treatment of Acute Midshaft Clavicle Fractures: Systematic Review of 2144 Fractures" Journal of Orthopaedic Trauma (2005)
  4. "Acute rotator cuff tears" BMJ (2017)
  5. "Surgery for rotator cuff tears" Cochrane Database of Systematic Reviews (2019)
  6. "DeLee & Drez's Orthopaedic Sports Medicine" W B Saunders Company (2015)
  7. "Treatment of Adhesive Capsulitis of the Shoulder" Journal of the American Academy of Orthopaedic Surgeons (2019)
  8. "Shoulder Pain and Mobility Deficits: Adhesive Capsulitis" Journal of Orthopaedic & Sports Physical Therapy (2013)
  9. "Clavicle fractures" Am Fam Physician (2008)
  10. "Treatment of clavicle fractures" Transl Med UniSa (2012)
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