42 Orthopedics
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Questions and Answers

Which cells are responsible for reabsorbing bone?

  • Osteocytes
  • Osteoclasts (correct)
  • Osteoblasts
  • Chondrocytes

What are the stages of bone healing in the correct order?

  • Remodeling of the callus, inflammation, mineralization of the callus, soft callus formation
  • Inflammation, soft callus formation, mineralization of the callus, remodeling of the callus (correct)
  • Mineralization of the callus, soft callus formation, inflammation, remodeling of the callus
  • Soft callus formation, mineralization of the callus, inflammation, remodeling of the callus

What type of fracture results in buckling of the cortex?

  • Salter-Harris type I fracture
  • Salter-Harris type IV fracture
  • Greenstick fracture (correct)
  • Salter-Harris type III fracture

Which Salter-Harris fracture types require open reduction and internal fixation if displaced?

<p>Type III and IV (D)</p> Signup and view all the answers

Which type of Salter-Harris injury involves a crush of the growth plate without a fracture?

<p>Type V (B)</p> Signup and view all the answers

Where does cartilage receive nutrients from?

<p>Synovial fluid (C)</p> Signup and view all the answers

Which condition presents with widening and irregularity of the epiphyseal plate on X-ray?

<p>Slipped capital femoral epiphysis (B)</p> Signup and view all the answers

What is the most appropriate initial diagnostic modality for diagnosing developmental hip dysplasia in newborns?

<p>Sonogram (B)</p> Signup and view all the answers

Which condition is characterized by tibial tubercle apophysitis in adolescents aged 13–15?

<p>Osgood–Schlatter disease (A)</p> Signup and view all the answers

What is the typical presenting symptom of multiple myeloma?

<p>Localized bone pain (A)</p> Signup and view all the answers

Which primary malignant bone tumor is most common in elderly men?

<p>Multiple myeloma (B)</p> Signup and view all the answers

What is the characteristic X-ray finding in osteogenic sarcoma?

<p>Codman’s triangle (C)</p> Signup and view all the answers

Which benign bone tumor may be observed without immediate intervention?

<p>Osteochondroma (A)</p> Signup and view all the answers

What is the most common cause of lumbar pain in adolescents, especially gymnasts?

<p>Spondylolisthesis (C)</p> Signup and view all the answers

Which type of fracture involves buckling of the metaphyseal cortex seen in children, especially in the distal radius?

<p>Torus fracture (C)</p> Signup and view all the answers

What is the appropriate management for open fractures?

<p>Incision and drainage, antibiotics, fracture stabilization, and soft tissue coverage (D)</p> Signup and view all the answers

In which condition does the hip get easily dislocated posteriorly and uneven gluteal folds are observed?

<p>Developmental hip dysplasia (D)</p> Signup and view all the answers

What can be used for pain relief in patients with painful bony metastases?

<p>Radiotherapy (XRT) (D)</p> Signup and view all the answers

Which type of fracture requires open reduction and internal fixation (ORIF) unless it is open?

<p>Tibial stress fracture (C)</p> Signup and view all the answers

What is the typical treatment for posterior knee dislocation in all patients?

<p>Angiogram (D)</p> Signup and view all the answers

Which injury is associated with point tenderness and initially normal x-rays?

<p>Tibial stress fracture (C)</p> Signup and view all the answers

What is the most common nerve injured with lower extremity fasciotomy?

<p>Superficial peroneal nerve (B)</p> Signup and view all the answers

Which compartment syndrome presents with pain under a cast and requires fasciotomy?

<p>Anterior compartment (B)</p> Signup and view all the answers

What is the typical treatment for acute hematogenous osteomyelitis in children?

<p>Antibiotics (A)</p> Signup and view all the answers

In which age group does Legg–Calvé–Perthes disease typically occur?

<p>School-age children (C)</p> Signup and view all the answers

What is the common symptom of Legg–Calvé–Perthes disease?

<p><strong>Painful gait limp</strong> (D)</p> Signup and view all the answers

Which condition requires maintaining range of motion with limited exercise as part of its treatment?

<p><strong>Legg–Calvé–Perthes disease</strong> (A)</p> Signup and view all the answers

Idiopathic adolescent scoliosis most commonly presents in which gender and at what stage of development?

<p>Prepubertal females (B)</p> Signup and view all the answers

What is the typical initial treatment for idiopathic adolescent scoliosis with curves between 20–45 degrees?

<p>Bracing (A)</p> Signup and view all the answers

Which bone condition requires spinal fusion for curves greater than 45 degrees or those likely to progress?

<p>Idiopathic adolescent scoliosis (A)</p> Signup and view all the answers

Which nerve is responsible for hip abduction?

<p>Superior gluteal nerve (B)</p> Signup and view all the answers

Which fracture is associated with high risk of avascular necrosis and nonunion?

<p>Scaphoid fracture (D)</p> Signup and view all the answers

What is the biggest risk factor for nonunion in fractures?

<p>Smoking (A)</p> Signup and view all the answers

Which nerve compression results in weak dorsiflexion (footdrop) and decreased sensation in the big toe web space?

<p>L5 nerve compression (C)</p> Signup and view all the answers

What is the characteristic presentation of Cauda equina syndrome?

<p>Distended bladder, flaccid rectal sphincter, and perineal saddle anesthesia (A)</p> Signup and view all the answers

Which nerve is involved in carpal tunnel syndrome?

<p>Median nerve (A)</p> Signup and view all the answers

What is the characteristic motor function of the ulnar nerve?

<p>Adduction of hand muscles (B)</p> Signup and view all the answers

What is the classic presentation of suppurative tenosynovitis?

<p>Swelling along the flexor tendon sheaths (C)</p> Signup and view all the answers

Which injury results in claw hand?

<p>Ulnar nerve injury (B)</p> Signup and view all the answers

What is the characteristic motor function of the musculocutaneous nerve?

<p>Elbow flexion (C)</p> Signup and view all the answers

What is the characteristic sensory function of the axillary nerve?

<p>Back of hand and 1st 3 and ½ 4th fingers on palmar side (D)</p> Signup and view all the answers

What is the characteristic sensory function of the radial nerve?

<p>1st 3 and ½ 4th fingers on dorsal side (A)</p> Signup and view all the answers

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