Understanding Joints Dislocation

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is the main symptom associated with a shoulder dislocation?

Muscle spasms in the shoulder

Numbness in the fingers

Severe shoulder pain (correct)

Swelling of the shoulder

Which classification describes a shoulder dislocation that is caused by traumatic events and requires surgery?

Multidirectional instability

Bilateral dislocation

TUBS (correct)

AMBRI

What is the role of the rotator cuff in shoulder stability?

Only responsible for shoulder movement

Static stabilizer through ligament tightening

Provides bony stability through glenoid bone stock

Dynamic stabilizer through passive muscle tension (correct)

Which of the following factors is the primary risk for dislocating the shoulder?

Previous shoulder dislocation Signup and view all the answers

What pathology is commonly associated with a traumatic anterior shoulder dislocation?

Bankart lesion Signup and view all the answers

Which condition would indicate that surgery is required after conservative measures fail for a shoulder dislocation?

Inferior capsular shift Signup and view all the answers

Which sport is associated with a higher incidence of shoulder dislocations due to frequent contact impacts?

Rugby Signup and view all the answers

What is a common physical sign observed in someone with a dislocated shoulder?

Arm held close to trunk with elbow flexed Signup and view all the answers

What is the most common type of shoulder dislocation?

Anterior dislocation Signup and view all the answers

Which method is used for closed reduction of acute shoulder dislocation?

Hippocratis' technique Signup and view all the answers

What should be examined to assess for neurovascular injury in shoulder dislocation?

Contraction of the deltoid muscle Signup and view all the answers

What is a potential complication of lunate dislocation?

Carpal tunnel syndrome Signup and view all the answers

Which characteristic is NOT associated with anterior shoulder dislocation?

Swelling of the elbow Signup and view all the answers

In which circumstance is open reduction indicated for shoulder dislocation?

If closed reduction fails Signup and view all the answers

What is the risk associated with shoulder dislocation related to the axillary nerve?

Nerve injury affecting shoulder movement Signup and view all the answers

Which classification of shoulder dislocation is considered rare?

Inferior dislocation Signup and view all the answers

What is typically visible or palpable when there is a loss of the normal contour of the shoulder?

Anterior bulge of the head of the humerus Signup and view all the answers

What is the first step in the nonoperative treatment of a dislocated shoulder?

Performing a closed reduction under anaesthesia Signup and view all the answers

Which technique is NOT used for closed reduction of a dislocated shoulder?

Smith's technique Signup and view all the answers

What role does physiotherapy play after shoulder dislocation treatment?

Aids in restoring range of motion and strengthening muscles Signup and view all the answers

Which of the following is a recommended approach to shoulder rehabilitation?

Ergonometric postural correction Signup and view all the answers

What is the purpose of using a sling after a shoulder dislocation?

To support the arm and prevent movement Signup and view all the answers

In the context of joint dislocation prevention, which of the following is NOT advisable?

Avoiding exercises that strengthen muscles Signup and view all the answers

Which type of dislocation is the most common for the elbow?

Posterior dislocation Signup and view all the answers

What is the most common type of elbow dislocation?

Posterior dislocation of both bones Signup and view all the answers

Which mechanism of injury most commonly leads to a posterior elbow dislocation?

Fall on an outstretched hand Signup and view all the answers

Which complication can result from neglected mobilization after elbow dislocation?

Stiffness of the elbow joint Signup and view all the answers

What is the primary focus of initial treatment for an elbow dislocation?

Urgent closed reduction Signup and view all the answers

What anatomical feature is disrupted during an elbow dislocation?

Medial and lateral collateral ligaments Signup and view all the answers

Which feature serves as an indicator of an elbow dislocation during clinical examination?

Isosceles triangle formed by epicondyles Signup and view all the answers

What should be avoided in the post-treatment care of an elbow dislocation to prevent complications?

All of the above Signup and view all the answers

What ensures a high degree of stability in the elbow joint?

Joint congruity and opposing tension Signup and view all the answers

Study Notes

Joints Dislocation

Joints dislocation is a common injury, particularly the shoulder.
Pain is a primary symptom.
Shoulder anatomy relies on soft tissues for stability, not inherent bony structure.
The glenoid bone stock is limited.
The rotator cuff serves as a dynamic stabilizer.
The capsular and glenohumeral ligaments provide static stabilization.

Shoulder Dislocation Classification

TUBS: Traumatic aetiology, unidirectional instability, Bankart lesion (requires surgery).
AMBRI: Atraumatic (minor trauma), multidirectional instability, bilateral (asymptomatic shoulder is also loose). Rehab is treatment of choice.

Traumatic Dislocation Classification

Anterior: Common, involving glenoid labrum and capsule avulsion (Bankart lesion). Capsule is stretched anteriorly; indentation in the posterolateral humeral head.
Posterior: less frequent, a result of marked adduction-internal rotation.
Multidirectional: less frequent.

Causes of Shoulder Dislocation

Sports injuries (e.g., football, rugby, hockey, skiing).
Accidents.
Falling on shoulder or outstretched arm.
Seizures.
Electric shocks.

Risk Factors for Shoulder Dislocation

Previous dislocation (higher risk).
High-impact sports involving contact (throwing, falls).
Congenital conditions (such as Ehlers-Danlos Syndrome).
Weak shoulder and core muscles.
Incorrect posturePoor technique.

Signs and Symptoms of Shoulder Dislocation

Severe pain.
Swelling, bruising of shoulder or upper arm.
Numbness/weakness in arm, neck, hand, or fingers.
Trouble moving arm.
Feeling like arm is out of place.
Muscle spasms.
Palpable, prominent acromion (anterior bulge of humerus head).
Empty glenoid socket.
Shoulder is flattened.

Diagnosis (Shoulder Dislocation)

X-ray (anteroposterior and axial views).
MRI (to check rotator cuff, capsule, glenoid labrum).

Treatment (Shoulder Dislocation)

Nonoperative: Closed reduction under anesthesia, immobilization (4 weeks), NSAIDs, physiotherapy. Techniques include traction-countertraction, Hippocrates, Stimpson's, and Kocher's.
Surgical: For old/unreduced dislocation or recurrent dislocation.
Rehabilitation: Use of sling, massage, joint mobilization, ice/heat treatment, physical exercises (pendular movements), education/sport and daily activities, ergonometric postural correction, return to sport plan.

Dislocation of Elbow

Elbow dislocation (most common in young adults, excluding shoulder).
Elbow is a modified hinge joint with strong ligaments and good intrinsic stability.
Most frequent is posterior dislocation (often caused by a fall on an outstretched hand). A direct force to posterior forearm with elbow flexed is another common cause.
Diagnosis involves a clinical assessment, imaging (an X-ray).

Treatment of Elbow Dislocation

Urgent closed reduction under general anesthesia, gentle longitudinal traction with elbow flexed
immobilization.
Rehab after 3 weeks of immobilization, active exercises to avoid stiffness.

Dislocation of Wrist

Lunate dislocation (can cause carpal tunnel syndrome).
Usually requires open reduction, followed by rehabilitation to prevent hand stiffness.

Prevention

Take care to avoid falls.
Wear protective gear when in contact sports.
Regularly exercise to maintain strength and flexibility in your joints and muscles.

Studying That Suits You

Use AI to generate personalized quizzes and flashcards to suit your learning preferences.

Description

This quiz covers the fundamentals of joints dislocation, focusing on the shoulder and its anatomy. Explore different classifications, symptoms, and treatment approaches for both traumatic and atraumatic dislocations. Test your knowledge on key concepts such as TUBS and AMBRI classifications.