Rapid Revision Reignite Orthopedics: Question-Answer Format

Introduction to Orthopedics Typical & Atypical Fractures

Big Question 1: What is orthopedics? What are the classifications of fractures, and what are the stages of fracture healing?

Broad Answer: Orthopedics is the branch of medicine concerned with the prevention, diagnosis, and treatment of musculoskeletal disorders. Fractures are classified by type, site, and etiology, and they heal through inflammatory, reparative, and remodeling stages.

Detailed Questions

Q1.1: Who coined the term 'orthopedics'?

Answer:

• Orthopedics comes from the Greek words "ortho" (making straight) and "paedics" (child).
• It means "making bent bones of a child."
• The term was coined by Sir Nicholas Andry, who is known as the Father of Orthopedics.

Q1.2: What is a fracture?

Answer: A fracture is a breach in the continuity of a bone, periosteum, or both.

Q1.3: What are the key differences between typical and atypical fractures?

Answer:

Q1.4: What are the stages of fracture union/healing?

Answer:

• The stages are:
  • Stage of impaction
  • Stage of induction
  • Stage of hematoma formation
  • Stage of callus formation
  • Stage of consolidation
  • Remodeling

Q1.5: How does the prognosis of a fracture vary with the type of fracture?

Answer:

• The prognosis is best for fractures with the highest raw surface area for healing, which are oblique.
• The prognosis decreases in the following order: oblique (best) > transverse > spiral > comminuted > segmental (worst).

Special X-Ray Views In Ortho

Big Question 2: What are the indications and technique for Coyle's view of the elbow, and how is the scaphoid view performed?

Broad Answer:

• The Coyle's view, also known as the trauma oblique view of the elbow, is performed with the patient seated, elbow flexed at 90°, palm facing down, and the X-ray tube angled 45° lateromedially.
• It is primarily used to detect radial head fractures, elbow dislocations, and to visualize the capitellum of the distal humerus.
• The scaphoid view involves positioning the wrist in ulnar deviation to eliminate bony overlap and enable clear visualization of the scaphoid bone. This is usually performed as a PA projection, but can also be considered an AP view.
• Both views enhance the detection of subtle fractures and joint abnormalities in the wrist and elbow.

Detailed Questions

Q2.1 What is Coyle's view of the elbow, and what are its clinical indications?

Answer:

• Also called the Trauma Oblique View of the Elbow
• In the Coyle method, the sitting axial lateromedial projection, where the patient is seated, the elbow is flexed at 90°, palmar side downwards, with the X-ray tube at a 45° angle projection lateromedially.
• The Coyle's view is performed for
  • Suspected Radial Head Fracture
  • Elbow Dislocation
  • Visualise Capitellum of the Distal Humerus

Q2.2 Explain the positioning and purpose of the Scaphoid View in wrist radiography.

Answer:

• The view is performed with the wrist in ulnar deviation to free the scaphoid from bony superimposition.
• Although typically performed as a PA projection, the view may also be described as an AP view.

Q2.3 Explain Carpal Tunnel View.

Answer:

• It is used to obtain an axial view of the carpal canal, with particular attention to the hook of the hamate, pisiform bone, and trapezium fractures.
• The hand is maximally dorsiflexed using the opposite hand or a strap.

Q2.4 What is Brewerton's View and what is its clinical significance?

Answer:

• The metacarpophalangeal joint is flexed to 65°, with the dorsum of the proximal phalanx flat against the radiograph cassette.
• The beam is angled 15° from ulnar to radial to profile the collateral recesses.
• It is helpful to visualize a collateral ligament Avulsion Fracture.

Malunion & Open Fractures

BIG QUESTION 3: What is malunion of a fracture, what are its types with examples, and what treatment options are available?

Broad Answer: Malunion is the healing of a fracture in an incorrect anatomical position, leading to deformity or functional impairment. It can be classified by angulation, rotation, or shortening, and treatment includes corrective osteotomy, physiotherapy, or supportive measures.

Detailed Questions

Q3.1: What is malunion?

Answer:

• Definition: Fracture fragments unite in an abnormal position.
• Causes: Improper treatment.
• Effects: Shortening, alteration in posture/balance.

Q3.2: What are the types of Malunion?

Answer:

Q3.3: What are the Treatment options for Malunion?

Answer:

• Malunion of 5° - 10° can be corrected by remodeling, so active treatment is not necessary.
• 3 methods of treatment
  • Osteoclasis
  • ORIF
  • Osteotomy
• Treatment of choice: Corrective osteotomy

Osteotomy

Bone Tumor

BIG QUESTION 4: What is the classification of bone tumors, and what are the origin, common sites, clinical features, radiological findings, and treatment of osteochondroma?

Broad Answer: Bone tumors are classified as benign or malignant, based on origin, behavior, and histology. Osteochondroma is a common benign bone tumor arising from the metaphysis of long bones, presenting as a painless bony swelling; diagnosis is by X-ray, and treatment is surgical excision if symptomatic.

Detailed Questions

Q4.1: What is the Lichtenstein Classification of bone tumors?

Answer:

Q4.2: What are the key features of Osteochondroma?

Answer:

• Also called exostosis.
  • Most common primary benign bone tumor.
  • It is an offshoot of the spongy bone tissue covered with a cartilaginous cap.
    • This is due to the unwanted activity of the cambium layer of the periosteum.
  • Most common age :
    • Growth period (growth spurt) - teenagers.
    • Male preponderance.

Q4.3: What are the common sites of osteochondroma?

Answer:

Most common site -The lower end of the femur.

2nd common site - Upper end of the tibia. Around the knee joint. Most common around the metaphysis of long bones, the crest of the ilium.

Q4.4: What are the Clinical Presentations of Osteochondroma?

Answer:

• 99% are asymptomatic
• Pain - Pain should not happen in Osteochondroma. If present, the possibilities are:
  • Adventitious bursitis
  • Fracture of exostosis
  • Compression of surrounding nerves - Neuritic pain.
  • Malignant change of Osteochondroma - 1% chance.
• Restriction of joint movements
• A firm, tender swelling fixed to the bone
• Gross appearance of exostosis - Cauliflower appearance.

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