MSK Flashcards
If a patient has Adhesive Capsulitis, what joint mobilization should you do to improve their shoulder ROM?
Posterior-inferior glide
The coracohumeral ligament prevents a dislocation in which direction?
Inferior or caudal
The superior glenohumeral ligament limits which shoulder motion(s)?
Limits ER and inferior translation of the humerus
The middle glenohumeral ligament limits which shoulder motion(s)?
Limits ER and anterior translation of the humerus
The inferior glenohumeral ligament limits which shoulder motion(s)?
Anterior band: limits ER, anterior, and superior translation
Posterio band: limits IR and anterior translation
Purpose of the transverse humeral ligament.
Protect the long head of the biceps tendon in the groove.
Does the ulna supinate or pronate when the elbow goes into flexion?
Supinates
Does the ulna supinate or pronate when the elbow goes into extension?
Pronates
How is the distal radius shaped in regard to the carpal bones?
Biconcave
Convex scaphoid and lunate articulate with concave radius
How is the distal ulna shaped in regard to the triquetrum?
Convex relative to the triquetrum
First CMC is what kind of joint? Describe how it changes when moving in the medial/lateral direction vs the anterior/posterior direction.
Saddle joint
In the medial/lateral direction the trapezium is convex; in the anterior/posterior direction, the trapezium is concave.
What is the orientation of the glenoid fossa?
Anterior, superior, and lateral
What is the orientation of the femur in the acetabulum?
Anterior, superior and medial
What is normal angle of inclination?
115 to 125 degrees
Coxa valga angle is what value?
> 125
Coxa vara angle is what value?
< 115
Anteversion is considered excessive if it is what value?
> 25-30 degrees
Retroversion is considered excessive if it is what value?
< 10 degrees
If someone has excessive anteversion at the hip, what will they do to compensate and WHY?
They will perform in-toeing because if they don’t, they place the femur too far anterior, risking a sublux or dislocation. After a patient does in-toeing, the femoral head is placed more posteriorly.
If someone has excessive retroversion at the hip, what will they do to compensate and WHY?
They will perform out-toeing because if they don’t, they place the femur too far posterior, risking a sublux or dislocation. After a patient does out-toeing, the femoral head is placed more anteriorly.
Glute max is innervated by what nerve?
Inferior gluteal nerve
The superior band of iliofemoral ligament is taut with adduction or abduction?
Adduction
The inferior band of iliofemoral ligament is taut with adduction or abduction?
Abduction
The ischiofemoral ligament is taut with what motions at the hip?
Medial rotation, extension, and abduction
Normal gait on level ground requires at least the following hip joint ROMs: flexion, extension, abduction/adduction, and IR/ER
30 flexion
10 extension
5 abduction/adduction
5 IR/ER
The ACL limits what?
Anterior translation of the tibia on the femur
The MCL and LCL of the knee both limit IR or ER?
ER
The PCL limits what?
Posterior translation of the tibia on the femur
What ligament pulls the menisci forward with extension?
The meniscopatellar ligaments
Describe the shape of the medial meniscus.
It is large, C-shaped, and fairly stable.
What does the medial meniscus attach to?
MCL and fibrous capsule
Describe the shape of the lateral meniscus.
It is smaller than the medial meniscus and more circular.
Does the medial or lateral meniscus move more?
Lateral
Unlocking of the screw-home mechanism into knee flexion occurs through action of what?
Popliteus
Twisting of the cruciate ligaments limit ER or IR?
IR
If you want to improve inversion at the ankle, what joint mobilization should you perform?
Lateral glide of calcaneus on talus
If you want to improve eversion at the ankle, what joint mobilization should you perform?
Medial glide of calcaneus on talus
Which nerve roots are being assessed when having the patient toe walk for a lower quarter screen?
S1, S2
Which nerve roots are being assessed when having the patient heel walk for a lower quarter screen?
L4, L5
Resisted hip flexion for a lower quarter screen assesses which nerve roots?
L2, L3
Resisted knee extension for a lower quarter screen assesses which nerve roots?
L3, L4
What does the Alar ligament attach to? What motions does it limit?
Attaches the dens to the occiput. Limits neck flexion, contralateral sidebending, and contralateral rotation.
Where is the costovertebral angle found?
Below the angle of the 12th rib
What does the Iliolumbar ligament attach to? What motions does it limit?
Attaches from the ilium to the transverse processes of L5. It limits the motion of L5 on S1.
At what level does the spinal cord terminate? What is it anatomically called?
L1-L2
Conus medullaris
What occurs at the facet joints when performing spine flexion?
Upper facets move anteroproximally and tilt forward
What occurs at the facet joints when performing spine extension?
Upper facets move downward, posterior, and tilt backward
What is the difference between cervical and lumbar rotation in regard to the facet joints?
The cervical facet joints will approximate on the ipsilateral side the patient is rotating towards; the lumbar facet joints will gap on the ipsilateral side the patient is rotating towards.
Nutation vs counternutation
Nutation: describes movement that involves flexion of the sacrum and posterior rotation of the ilium
Counternutation: describes movement that involves extension of the sacrum and anterior rotation of the ilum
When you begin to open the jaw, it is a roll or glide FIRST?
Roll first then glide
Is the dense connective tissue that covers the articulating surfaces of the TMJ, vascular or avascular? Neural or aneural?
Avascular and aneural
Is the disc of the TMJ vascular or avascular? Neural or aneural?
Avascular and aneural
As the mandible slides anteriorly with jaw opening, the disc of the TMJ does what?
Slides anteriorly
Anteriorly, the disc of the TMJ is attached to what two structures?
Joint capsule and superior lateral pterygoid muscle
Does the disc of the TMJ usually dislocate anteriorly or posteriorly? And during what motions is this most susceptible?
Anteriorly
Occurs with yawing or taking a large bite of something
Functional opening combines what two kinematic movements and is approximately what range?
Rotation and translation
40 mm
Which muscles elevate the mandible during closuring?
Masseter, temporalis, and medial pterygoid
Which muscles protrude the mandible?
The lateral and medial pterygoid muscles
Which muscles retrude the mandible?
The posterior fibers of the temporalis muscle
What is a likely possibility if a patient presents as strong and painful with resisted muscle testing?
Minor structural lesion of the muscle-tendon unit
What is a likely possibility if a patient presents as weak and painless with resisted muscle testing?
Complete rupture of muscle-tendon unit or neurological deficit present. Further testing is needed.
What is a likely possibility if a patient presents as weak and painful with resisted muscle testing?
Partial disruption of muscle-tendon unit. Pain response due to serious pathology or concurrent neurological deficit.
What MMT grade is considered Fair?
3
What MMT grade is considered Poor?
2
How is a 3+/5 MMT grade described?
Able to move against gravity and resist minimal pressure
How is a 3-/5 MMT grade described?
Can only move into the test position against gravity but gradual release against gravity
How is a 2+/5 MMT grade described?
Can move against gravity in a small ROM
Nerve roots tested for Biceps DTR?
C5, C6
Nerve roots tested for Brachioradialis DTR?
C6
Nerve roots testing for Triceps DTR?
C7
Nerve roots tested for Patellar Tendon DTR?
L3, L4
Nerve roots tested for Achilles Tendon DTR?
S1, S2
A 1+ for DTR testing is considered what?
Hyporeflexia
A 2+ for DTR testing is considered what?
Normal
A 3+ for DTR testing is considered what?
Hyperreflexia
How do you perform the Vertebral Artery Test?
The patient fully extends and rotates the neck to one side and holds the position for AT LEAST 10 SECONDS!
The Quadrant test is also known as what test?
Spurling’s
If the Quadrant test is positive, what does this imply and what should happen afterwards?
The cervical spine requires further examination for cervical radiculopathy, cervical disc prolapse, and neck pain.
A prone knee bend assesses what?
Femoral nerve
What are the steps of the slump test?
The patient slumps into lumbar thoracic flexion while looking straight ahead. The patient then fully flexes the neck and extends one leg. The patient next DFs the ipsilateral foot of extended leg.
What does your radial nerve innervate?
Triceps
Anconeus
Abductor pollicis longus
Supinator
Brachioradialis
All the extensors
The radial nerve passes under what muscle in the forearm?
Extensor carpi radialis brevis
Wrist drop is associated with injury to what nerve?
Radial
How would a patient present if they had Cubital Tunnel Syndrome?
Paralysis of Flexor carpi ulnaris, flexor digitorum profundus (ulnar half), hypothenar eminence, interossei, and the 3rd and 4th lumbricals. All sensations affected. Inability to grasp paper.
What is the presentation of an Ulnar Claw Hand?
Hyperextension at 4th, 5th, MCP; flexion at 4th, 5th IP due to weakness of flexor digitorum profundus.
Hypertrophy of what forearm muscle can compress the median nerve?
Pronator teres
Supraspinatus performs shoulder abduction up to how many degrees?
15
Action of Infraspinatus?
ER and abduction of shoulder
Action of Teres Major?
IR, extension, and adduction
Action of Subscapularis?
IR and adduction
What three muscles are scapular elevators?
Upper trap, levator scap, and rhomboids
What muscles perform scapular protraction?
Pec minor and major, serratus anterior,
What muscles are scapular depressors?
Pec minor and major; lattisimus dorsi; serratus anterior; lower trap
Which carpal bone is the most frequently fractured?
Scaphoid
The radiocarpal joint is stabilized medially by which structure?
The triangular fibrocartilage complex (TFCC)
The wrist is naturally positioned in flexion or extension? How many degrees?
20-30 degrees extension
What type of fracture can result in damage to the radial artery?
Supracondylar
A power grip requires what motions?
Slight wrist extension, ulnar deviation, and finger flexion.
When the MCPs are stable, what muscle flexes the PIPs? When the PIPs are stable, what muscle flexes the DIPs?
FDS flexes the PIPs
FDP flexes the DIPs
What two muscles are most important in IR at the hip?
Anterior fibers of the glute med and min
Blood supply of the menisci?
Inner 2/3rds is avascular; outer 1/3rd is mostly vascular
The superior angle of scapula is at what vertebral level?
T2
The spine of the scapula is at what vertebral level?
T3
The inferior angle of the scapula is at what vertebral level?
T7
The xiphoid process is at what vertebral level?
T7
The iliact crest/umbilicus is at what vertebral level?
L4
The PSIS is at what vertebral level?
S2
ROM value for pronation/supination at the wrist?
90 degrees
ROM value for ankle DF?
20 degrees