Anterior cruciate ligament - Quiz
Anterior cruciate ligament
  • 1. What is the typical timeframe for a patient to return to life as it was prior to an ACL injury?
A) 1 to 3 months
B) 6 to 12 months
C) 12 to 18 months
D) 3 to 6 months
  • 2. Which of the following is considered a possible graft type for ACL surgery?
A) Bone-patella tendon-bone
B) Medial collateral ligament
C) Achilles tendon
D) Lateral meniscus
  • 3. What percentage of patients are happy with their graft choice?
A) 75.2%
B) 98.1%
C) 85.5%
D) 92.9%
  • 4. What is the primary purpose of prehabilitation?
A) Speed up the surgical procedure
B) Reduce post-operative pain only
C) Guarantee no future injuries
D) Maintain range of motion and strength
  • 5. During which phase of rehabilitation does a patient typically begin running?
A) Phase two
B) Phase five
C) Phase one
D) Phase three
  • 6. What is a major risk factor of ACL reconstruction in children?
A) Total failure of the immune system
B) Chronic infection of the bone
C) Complete loss of leg sensation
D) Injury to open growth plates
  • 7. Which exercises are appropriate for phase two of rehabilitation?
A) Multiplanar movements
B) Quad sets only
C) Plyometric drills
D) Core strengthening and balance
  • 8. What did the 2010 Los Angeles Times review find regarding adults aged 18 to 35?
A) Early surgery was significantly better
B) Delayed surgery led to permanent disability
C) Rehabilitation alone is always superior to surgery
D) Early surgery outcomes were similar to delayed surgery with rehab
  • 9. What is included in phase four of ACL rehabilitation?
A) Agility and plyometric drills
B) Initial protection of the graft
C) Weight shifting drills only
D) Sport-specific motions only
  • 10. How does prehabilitation affect function postoperatively?
A) It has no impact on long-term function
B) It decreases function for the first 6 weeks
C) Effects were sustained 12 weeks postoperatively
D) Benefits disappear immediately after surgery
  • 11. Which graft type involves the semitendinosus and gracilis tendons?
A) Quadriceps tendon
B) Bone-patella tendon-bone
C) Quadrupled hamstring tendon
D) Allograft
  • 12. What is the focus of phase five of the rehabilitation process?
A) Correction of gait patterns
B) Initiating aquatic workouts
C) Decreasing swelling
D) Sport- or life-specific motions
  • 13. According to the text, how does the surgeon usually choose a graft?
A) By flipping a coin
B) Based on the type they are most comfortable with
C) Exclusively based on patient age
D) Always the allograft
  • 14. Why might serious athletes still require ACL reconstruction?
A) Because it guarantees zero pain
B) To avoid all physical therapy
C) To increase overall height
D) To perform sports requiring pivoting and twisting
  • 15. What type of workout is mentioned to help with reducing joint stresses and cardiorespiratory endurance?
A) High-intensity sprinting
B) Aquatic workouts
C) Weight lifting
D) Static stretching
  • 16. What does the Latin word 'cruciate' mean?
A) Twist
B) Triangle
C) Band
D) Cross
  • 17. What percentage of restraining force does the ACL provide to anterior tibial displacement at 30 and 90 degrees of flexion?
A) 50%
B) 75%
C) 85%
D) 95%
  • 18. Why is conservative treatment for ACL injuries often unsuccessful?
A) Synovial fluid washes away reparative cells
B) The ligament is not made of fibrous material
C) Lack of blood flow to the entire knee joint
D) The ligament is too thick to heal
  • 19. What is an autograft?
A) A robotic surgical repair
B) Tissue taken from the patient's own body
C) Tissue taken from a donor
D) Synthetic material used to replace the ligament
  • 20. Which mechanism is used for stable terminal extension in athletes?
A) Neuromuscular compensation
B) Pivot-shift phenomenon
C) Screw-home mechanism
D) Tibial translation
  • 21. What structures detect changes in acceleration, speed, and tension in the ACL?
A) Synovial cells
B) Mechanoreceptors
C) Fibroblasts
D) Bone plugs
  • 22. What does the ACL cross to form an 'X'?
A) Medial collateral ligament
B) Posterior cruciate ligament
C) Lateral collateral ligament
D) Patellar tendon
  • 23. What is the most common treatment for an ACL tear?
A) ACL reconstruction
B) Bracing
C) Physical therapy only
D) Injections
  • 24. Which of the following is a goal of ACL rehabilitation?
A) Surgery for everyone
B) Regaining functional stability
C) Strict bed rest
D) Complete immobilization
  • 25. What is the primary focus of the acute phase of rehab?
A) Cardiovascular conditioning
B) Return to sport
C) Neuromuscular control
D) Addressing acute symptoms
  • 26. What is suggested during the return to sport phase to assist with stability?
A) A cast
B) Strict immobilization
C) A functional performance brace
D) Total rest
  • 27. According to the text, how do operative and nonoperative outcomes compare regarding muscle strength?
A) No significant differences
B) Nonoperative is significantly better
C) Operative is significantly better
D) They have not been studied
  • 28. Which of the following is an example of an extrinsic risk factor for ACL injury?
A) Dynamic movement patterns
B) Hormonal levels
C) Anatomical size of the notch
D) Genetic predisposition
  • 29. Which of the following describes the shape of the lateral tibiofemoral articular surfaces?
A) Irregularity
B) Concavity
C) Convexity
D) Flatness
  • 30. Besides size, what is a physical measurement of the ACL studied by researchers?
A) Elasticity
B) Oxygenation
C) Blood flow capacity
D) Volume
  • 31. What shape describes the medial tibial plateau mentioned in the text?
A) Triangularity
B) Concavity
C) Squareness
D) Convexity
  • 32. Which of these is listed as a category of factors contributing to ACL risk differences?
A) Hormonal
B) Social
C) Educational
D) Dietary
  • 33. What magnitude is identified as a risk factor related to the tibia?
A) Tibial slope
B) Tibial rotation
C) Tibial density
D) Tibial length
  • 34. According to the text, which category of risk factors might be the most important?
A) Extrinsic factors
B) Anatomical factors
C) Hormonal factors
D) Genetic factors
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