MOD 5: knee OA

Question 1

What is the most common cause of knee pain?

Answer 1

Knee osteoarthritis

It is particularly prevalent in adults over the age of 50.

Question 2

What are the key clinical findings associated with knee osteoarthritis?

Answer 2

• Pain
• Stiffness
• Limited functional activities

These findings can impact quality of life and lead to missed work or normal activities.

Question 3

What percentage of the population over the age of 25 begins to show degenerative changes in the knee?

Answer 3

14%

Degenerative changes may or may not correlate to symptoms.

Question 4

True or false: Imaging findings always correlate with pain and disability.

Answer 4

FALSE

Imaging does not necessarily correlate to pain and disability.

Question 5

What are some myths regarding knee osteoarthritis?

Answer 5

• Pain equals damage
• Surgery will fix it
• Exercise is dangerous
• Rest is helpful

These myths can mislead treatment approaches.

Question 6

What factors can influence the development of knee osteoarthritis?

Answer 6

• Stress
• Weight
• Lifestyle
• Genetics
• Unaccustomed load

Previous injuries to structures like the ACL or meniscus can also contribute.

Question 7

What is the Kelvin Lawrence grading system used for?

Answer 7

Grading the degrees of osteoarthritis based on imaging

It ranges from grade 0 (no features) to grade 4 (large osteophytes and severe deformity).

Question 8

What are the clinical criteria for diagnosing knee osteoarthritis according to the American College of Rheumatology?

Answer 8

• Age over 50
• Stiffness greater than 30 minutes
• Crepitus or osteophytes

At least five of these nine factors are needed for diagnosis.

Question 9

What is the difference between nociceptive pain and neuropathic pain?

Answer 9

• Nociceptive pain: episodic, acute, localized
• Neuropathic pain: constant, diffuse, may include nerve signs

Neuropathic pain may involve symptoms like burning or paresthesia.

Question 10

What is the impact of passive treatments compared to active treatments for knee osteoarthritis?

Answer 10

Passive treatments have lower value than active treatments

Early intervention should focus on movement-based interventions.

Question 11

What is the significance of yellow flags in pain interpretation?

Answer 11

They can influence a person’s pain sensitivity

Factors include excessive stress, memory, and sleep problems.

Question 12

What percentage of people do not get any pain relief from a joint replacement?

Answer 12

20%

This indicates that surgery may not always be the solution for knee pain.

Question 13

What are some symptoms that may indicate knee osteoarthritis?

Answer 13

• Pain and tenderness
• Stiffness in the morning
• Stiffness after prolonged positions

Symptoms can worsen with weight-bearing activities.

Question 14

What is the role of MRI in diagnosing knee osteoarthritis?

Answer 14

MRI can be misinterpreted and may trigger unnecessary treatments

MRI changes are often part of the normal aging process.

Question 15

Fill in the blank: Knee OA is the _______ leading cause of long-term disability worldwide.

Answer 15

11th

This highlights the significant impact of knee osteoarthritis on daily life.

Question 16

What can cause worsening symptoms in knee osteoarthritis?

Answer 16

• Weight bearing positions
• Temperature changes
• Barometric pressure changes

These factors can affect knee pain and stiffness.