Mobilization/Manipulation
passive, skilled manual therapy techniques applied to joints and related soft tissues at varying speeds and amplitudes using physiologic or accessory motions for therapeutic purposes
What causes altered joint mechanics?
Interventions unique to PT (according to APTA):
Thrust manipulation/high-velocity thrust (HVT)
high-velocity, short amplitude techniques; performed at the end of the pathological limit of the joint and is intended to alter positional relationships, snap adhesions, or stimulate joint receptors
Self-mobilization
self-stretching techniques that specifically use joint traction or glides that direct the stretch force to the capsule
Mobilization with movement (MWM)
concurrent application of sustained accessory mobilization applied by a therapist and an active physiological movement to end-range applied by the patient
Physiological movement
movements the patient can do voluntarily
Accessory movements
movements in the joint and surrounding tissues that are necessary for normal ROM but that cannot be actively performed by the patient (AKA component motions)
Examples of accessory or component motions.
upward rotation of scapula and rotation of clavicle during shoulder flexion; rotation of the fibula during ankle motion
Joint play
motions that occur between the joint surfaces and also the distensibility or give of the joint capsule, which allows the bone to move (distraction, sliding, compression, rolling, and spinning of joint surfaces - arthrokinematics)
Muscle energy techniques
use active contraction of deep muscles that attach near the joint and whose line of pull can cause the desired accessory motion
Ovoid joints
one surface is convex, the other is concave
Sellar joint
AKA saddle joint, concave/convex in one direction and convex/concave in the opposing direction
Manipulation under anesthesia
therapist can assist the surgeon in the operating room and continue with follow-up care
The movement of a bony lever is called _____ accessory motions that occur allowing greater angulation of the bone as it swings are _____ & ________, or _________.
swing; rolling/sliding, spinning
The more congruent the joint surfaces are, the more ________ there is of one bony partner on the other with movement.
sliding
The more incongruent the surfaces are, the more _______ there is of one bony partner on the other with movement.
rolling
Examples of spin occurring in joints of the body:
shoulder with flexion/extension, hip with flexion/extension, radiohumeral joint with pronation/supination
What are some benefits of compression in the joint space?
- move synovial fluid, maintain cartilage health
Traction
longitudinal pull (long-axis traction)
Distraction
separation, or pulling apart (joint traction, joint separation)
Potential side effects of immobilization:
Effects of joint motion:
Neurophysiological effects of joint-play techniques:
stimulate mechanoreceptors that may inhibit the transmission of nociceptive stimuli at the spinal cord or brain stem levels