Question 1

Which are considered contraindications to the use of continual passive motion? Select all that apply.
A) Unstable fracture
B) Uncontrolled infection
C) After joint debridement
D) After osteochondral repair
E) Tendon laceration

Accepted Answer

A,B

Question 2

Which of the following is not a benefit realized through the use of continuous passive motion?
A) Increased strength
B) Decreased apprehension to joint movement after surgery
C) Restoration of range of motion
D) Decreased functional shortening of muscle

Accepted Answer

Continuous passive motion (CPM) is a postoperative therapy technique that involves the movement of a joint through a prescribed range of motion by an external device. The benefits of CPM include decreased apprehension to joint movement after surgery, restoration of range of motion, and decreased functional shortening of muscle. However, CPM does not increase strength.

Question 3

Robert Salter originally proposed the use of continuous passive motion and hypothesized that its application would be beneficial in which ways? Select all that apply.
A) Enhancing the nutrition and metabolic activity of articular cartilage
B) Stimulating tissue remodeling and regrowth of articular cartilage
C) Accelerating the healing of articular cartilage,tendons,and ligaments
D) Accelerating the healing of muscle tissues
E) Stimulating an increase in muscular strength and metabolic activity

Accepted Answer

Robert Salter proposed the use of continuous passive motion to enhance the nutrition and metabolic activity of articular cartilage, stimulate tissue remodeling and regrowth of articular cartilage, and accelerate the healing of articular cartilage, tendons, and ligaments. While continuous passive motion may have some benefits for muscle tissues, it is not primarily used for this purpose.

Question 4

The design of what continuous passive motion device is similar to manually moving the patient's limb through a range of motion?
A) Free linkage design
B) Anatomic design
C) Nonanatomic design
D) Locked linkage design

Accepted Answer

The free linkage design of a continuous passive motion device mimics the manual movement of a patient's limb through a range of motion, allowing for natural joint movement.

Question 5

According to the practical evidence,knee flexion and knee extension motion is increased only _____when continuous passive motion is used following knee arthroplasty?
A) 2 to 3 degrees
B) 4 to 5 degrees
C) 6 to 7 degrees
D) 8 to 9 degrees

Accepted Answer

Continuous passive motion (CPM) following knee arthroplasty has been shown to increase knee flexion and extension by only a small margin, specifically 2 to 3 degrees, according to practical evidence.

Question 6

The passive movements and elevation of the body part are components of continuous passive motion that increase which factors?
A) Venous return
B) Lymphatic and arteriole return
C) Venous and lymphatic return
D) Venous and arteriole return

Accepted Answer

Continuous passive motion can increase venous and lymphatic return, but not arteriole return. The passive movements and elevation help to facilitate the movement of fluid and waste products from the affected area, decreasing swelling and promoting healing.

Question 7

Throughout a range of motion,when is joint volume normally at its greatest?
A) Full extension
B) Full flexion
C) Midrange between flexion and extension
D) Volume does not change throughout a range of motion

Accepted Answer

The answer of Throughout a range of motion,when is joint...

Question 8

The application of continuous passive motion is thought to stimulate the circulation of synovial fluid,which enhances the uptake of nutrients by what tissue in the knee?
A) Meniscal cartilage and articular cartilage
B) Articular cartilage only
C) Meniscal cartilage only
D) Neither meniscal cartilage nor articular cartilage

Accepted Answer

Continuous passive motion is believed to enhance the circulation of synovial fluid, which improves the transport of nutrients to the knee joint. This enhanced circulation is beneficial for both meniscal and articular cartilage, which can both receive improved nutrition and aid in the healing process.

Question 9

After surgery,continuous passive motion is typically used for ___hours a day.
A) 8 to 10
B) 2 to 4
C) 4 to 6
D) 6 to 8

Accepted Answer

Continuous passive motion (CPM) is typically used for 6 to 8 hours a day after surgery. CPM is a device that helps with joint motion and reducing healing time. It is used to maintain range of motion in a joint that has undergone surgery or trauma.

Question 10

Which of the following are indications to treat with continuous passive motion? Select all that apply.
A) After joint arthroplasty
B) Joint contracture
C) Thrombophlebitis
D) After meniscectomy
E) Spastic paralysis

Accepted Answer

The answer of Which of the following are indications to...

Question 11

Continuous passive motion can possibly provide pain reduction via the gate mechanism,which occurs from the stimulation of afferent nerves located in what tissues?
A) Muscle and joint
B) Skin and muscle
C) Joint and skin
D) Skin,joint,and muscle

Accepted Answer

The gate mechanism occurs when afferent nerves located in the skin, joint, and muscle are stimulated, which can potentially provide pain reduction. Therefore, the best choice is D, which includes all three tissues.

Question 12

The pumping action created by continuous passive motion circulates synovial fluid and assists in the removal of what? Select all that apply.
A) Joint hemarthrosis
B) Periarticular edema
C) Blood from tissue surrounding the joint
D) Pitting edema
E) Lymphedema

Accepted Answer

Continuous passive motion (CPM) helps to circulate synovial fluid which assists in the removal of joint hemarthrosis, periarticular edema, and blood from tissue surrounding the joint. However, CPM does not assist in the removal of pitting edema or lymphedema.

Question 13

Which of the following is reduced during the realignment of collagen that occurs with the use of continuous passive motion? Select all that apply.
A) Functional shortening of collagen
B) Cross-linking of collagen
C) Capsular adhesions
D) Tensile strength of tendon
E) Tensile strength of allografts

Accepted Answer

Continuous passive motion helps in reducing functional shortening of collagen, cross-linking of collagen, and capsular adhesions by promoting proper alignment and mobility, thus preventing stiffness and improving flexibility.

Question 14

When compared to faster speeds,slower speeds of continuous passive motion are theorized to produce better tensile properties of healing tendons.

Accepted Answer

The answer of When compared to faster speeds,slower speeds of...

Question 15

Which form of continuous passive motion device allows for compensatory motion between the patient's extremity and the carriage of the device?
A) Free linkage design
B) Anatomic design
C) Nonanatomic design
D) Locked linkage design

Accepted Answer

The answer of Which form of continuous passive motion device...

Question 16

Which option below best represents the philosophy regarding the effects of continuous passive motion?
A) Motion that is never lost need never be regained.It is the regaining of movement that is painful.
B) Motion that is lost must be regained.It is the regaining of movement that is painful.
C) Motion that is lost must be regained.It is the loss of movement that is painful.
D) Motion that is never lost need never be regained.It is the loss of movement that is painful.

Accepted Answer

Continuous passive motion (CPM) is based on the principle that maintaining joint movement can prevent stiffness and improve recovery, implying that if motion is never lost, it does not need to be regained, which can be a painful process.

Question 17

What continuous passive motion design is most suitable for use with the knee?
A) Free linkage design
B) Anatomic design
C) Nonanatomic design
D) Locked linkage design

Accepted Answer

Anatomic design is the most suitable for use with the knee in continuous passive motion as it follows the natural movement of the joint, allowing for a smoother and more comfortable rehabilitation process.

Question 18

While continuous passive motion can be used on many different joints,what joint is it predominantly used with?
A) Knee
B) Shoulder
C) Ankle
D) Elbow

Accepted Answer

Continuous passive motion is predominantly used with the knee joint as it helps to promote healing, reduce scar tissue formation, and improve range of motion after knee surgery or injury.

Question 19

Continuous passive motion is more effective than static stretching when increasing range of motion due to soft tissue restriction.

Accepted Answer

Continuous passive motion (CPM) involves the use of a machine to move a joint through a predetermined range of motion in a controlled and repetitive manner. This is believed to be more effective than static stretching because it can help break up scar tissue and adhesions in soft tissue, allowing for increased range of motion.

Question 20

The decision to use continuous passive motion should be based on the specific pathology to be treated.

Accepted Answer

The answer of The decision to use continuous passive motion...

Quiz 15: Continuous Passive Motion

Which are considered contraindications to the use of continual passive motion? Select all that apply.

Which of the following is not a benefit realized through the use of continuous passive motion?

Robert Salter originally proposed the use of continuous passive motion and hypothesized that its application would be beneficial in which ways? Select all that apply.

The design of what continuous passive motion device is similar to manually moving the patient's limb through a range of motion?

According to the practical evidence,knee flexion and knee extension motion is increased only _____when continuous passive motion is used following knee arthroplasty?

The passive movements and elevation of the body part are components of continuous passive motion that increase which factors?

Throughout a range of motion,when is joint volume normally at its greatest?

The application of continuous passive motion is thought to stimulate the circulation of synovial fluid,which enhances the uptake of nutrients by what tissue in the knee?

After surgery,continuous passive motion is typically used for ___hours a day.

Which of the following are indications to treat with continuous passive motion? Select all that apply.

Continuous passive motion can possibly provide pain reduction via the gate mechanism,which occurs from the stimulation of afferent nerves located in what tissues?

The pumping action created by continuous passive motion circulates synovial fluid and assists in the removal of what? Select all that apply.

Which of the following is reduced during the realignment of collagen that occurs with the use of continuous passive motion? Select all that apply.

When compared to faster speeds,slower speeds of continuous passive motion are theorized to produce better tensile properties of healing tendons.

Which form of continuous passive motion device allows for compensatory motion between the patient's extremity and the carriage of the device?

Which option below best represents the philosophy regarding the effects of continuous passive motion?

What continuous passive motion design is most suitable for use with the knee?

While continuous passive motion can be used on many different joints,what joint is it predominantly used with?

Continuous passive motion is more effective than static stretching when increasing range of motion due to soft tissue restriction.

The decision to use continuous passive motion should be based on the specific pathology to be treated.