MSK III Exam 1 Review

Microtearing/micro avulsion of the flexor carpi radialis tendon

◦1. Ulnarly deviate and axially load the patient’s wrist ◦2. Move the wrist volar lay and dorsally (look for crepitus)

Muscles of mastication are innervated by cranial nerve:

Anterior displacement with reduction:

Which is NOT a mandibular depressor?

The radial head should not point toward the capitellum in radiographs

With unilateral subluxation, may see quick deviation to contralateral side at end of opening

IP joints are bicondylar

Proximal radioulnar shares one joint capsule with the elbow

Strength for TMJ is tested eccentrically

PT mostly treats TMJ dysfunction (vs disease, trauma etc)

• Axial compression with thumb rotation • Positive if painful over 1st CMC along with palpation

Clench fist several times while occluding Radial and Ulnar AA. Repeat for the other artery (Allen's)

Caused by FOOSH

Present illness-Past health history-Family health history-Personal/social history

Injury to ulnar collateral ligament of thumb causing pain and instability to MCP joint

Finkelstein test • Thumb flexion with UD; positive is painful over compartment (tests for Dequervain's)

The bilaminar is important because it keeps the disc from sliding too far ____

When the wrist flexes or extends or deviates, the axis of movement is between the lunate and the capitate bones

Open-packed: radiocarpal and midcarpal joint

Which is not a border of anatomical snuff box?

Tests for median nerve compression by the pronator teres (pronator teres syndrome test)

Fractures usually involve FOOSH MOI and x-rays may be negative immediately after fall

Most common elbow dislocation

Prevents you from opening mouth too far

Which is not conservative treatment of 1st CMC joint OA:

Treatment for anterior disc dislocation without reduction:

Anterior rotation (close) and posterior translation (glide/retract) happen simultaneously

Superficial radial nerve can become irritated with radial-sided injuries (hypersensitivity and numbness)

Stage 1 of PLRI: complete dislocation with the coronoid resting behind the trochlea

Pisiform is a sesamoid bone that lies within the fibers of

Microtearing/micro avulsion of the extensor carpi radialis brevis and longus tendons

Tenderness may indicate AVN (Kienbock’s disease)

Protruders = bilateral lateral pterygoids

◦Early phase = rotation of the TMJ ◦Later phase = translation

Course of ulnar nerve is contiguous with the joint capsule

Suspends mandible when the mouth is wide ope

There is natural ___ at the elbow

Injury to the lateral ulnar collateral that results in transient external rotary subluxation of the ulna on the humerus

Resting position is fully closed (TMJ)

Purpose of frontment's sign tests: ___, + sign is ___

Right medial and lateral pterygoids and the left posterior temporalis muscle

Which is true regarding carrying angle?

Biting down on L side you get ___ on left joint and ___ right joint

Which is not normal wrist ROM

Carpal tunnel 3x more common in men

Name the mandibular elevator:

Left medial and lateral pterygoids and right posterior temporalis

Chewing (mastication) and grinding are composite motions that do not occur in one plane

Capsular pattern of wrist:

The radioulnar joints are pivot joints with two degree of freedom

Common in older patients and presents as chronic pain, pain at base of thumb, aggravated by sustained pinching

Palpate snuffbox between tendons with wrist in:

Which is affected with valgus extension overload?

Roof is transverse carpal ligament (carpal tunnel)

Which is NOT a carpal tunnel test?

Movements of the TMJ are described by what the mandible is doing

Periarticular elbow pain:

Anterior displacement with reduction:

Radial-sided wrist pain that increases with ulnar deviation, pinch grasping, thumb movement, entrapment of APL&EPB

Retruders = posterior temporalis muscle, posterior digastric, deep masseter

Which is not a common postural observation with a person with TMD?

Treatment for anterior disc that reduces:

TMJ capsular restriction is a:

Most common fracture type:

Inability to supinate the forearm with Nursemaid's elbow

____ is a nice option when the patient's opening is less than 25mm

Which digits are most affected by dupuytren's contracture (palmar aponeurosis becomes fibrous)

Which is NOT a red flag for TMJ?

Humero-ulnar joint can be distracted, dorsally glided, and volarlly glided

Osteochondrosis of the capitellum: Panner's Disease

MCP joints are condyloid joints so they have 2 degrees of freedom

Anterior roll and posterior glide of radial head on proximal ulna

Subluxations and translations d/t muscle imbalances immediately cause TMJ dysfunction

Which is not true of anterior displacement without reduction?

Distraction helps increase elbow flx AND ext

Normally as the wrist radially deviates and flexes, the scaphoid moves palmary

Subluxations and early translations are related to muscle imbalances

Palpate this bony prominence over the dorsal surface of the distal end of the radius

Pronation = radius and ulna cross each other

Hand osteoarthritis: DIP joints a bit more commonly than the PIP joints

Stab radius and passively translocate the ulna volarly and dorsally in various degrees of pronation piano keys test

Anterior bundle of UCL is the primary restraint to valgus force at the elbow during the throwing motion

Sometimes impinged right below the heads of the PT

Bilateral loading may be done by forced retrusion by posterior and superior manual translation of the mandible

Damage to what nerve makes a pt unable to make OK sign:

◦Common injury in early childhood ◦Child’s elbow is pulled and partially dislocates

Posterior rotation (depression) and anterior translation (glide/protrusion) happen simultaneously

Which is NOT part of carpal tunnel?

TMJ articulation of:

Scaphoid shift test begins in what position?

Roll of ulna and radius during elbow ext

Convex surfaces of humerus:

Often baseball players and gymnasts injuries to the joint surfaces, such as osteonecrosis or osteochondritis dissecans

Rounded shoulder:Acromion is anterior to plumb line, scapulae tend to be abducted

Supracondylar is common in children associated with temporary nerve injuries involving

Treatment of lateral epicondlyitis

During normal opening, the disc and the mandibular condyle translate __ together (closing is opposite)

Palpate immediately distal to the DRUJ and between the head of the ulna and the triquetrum

Joint of the wrist: