Introduction to Orthopedic Diagnosis Flashcards
a working knowledge of the MS system forms the foundation of every
orthopedic exam
physical examination
evaluation
intervention (care plan)
_____ and ____ and how they relate to _____ is the key to diagnosis
biomechanics and anatomy
function
- what is normal versus abnormal for that patient
- what structures an tissues are functioning properly versus not working or only partially functioning
a fundamental skill of a chiropractor is to _____, _____ and ____ _____ related to human movemetn
identify
analyze
solve problems
when describing movements there is a need for starting position=
reference position
starting position is referred to as
anatomical reference position (anatomical position)
the anatomical position for the human body=
erect standing position feet slightly separated, arms hanging by the side, elbows straight and palms of the hand facing forward
superior or cranial
closer to the head
inferior or caudal
closer to the feet
anterior or ventral
toward the front of the body
posterior or dorsal
toward te back of the body
medial
toward the midline of the body
lateral
away from eh midline of the body
there are 3 planes of the body =
3 dimensions of space:
sagittal
frontal
transverse
sagittal plane
aka anterior-posterior or median plane
divides the body vertically into left halves of equal size
frontal plane
aka lateral or coronal plane
divides the body equally into front and back halves
transverse plane
aka horizontal plane
divides the body equally into top and bottom halves
3 reference axes are used to describe human motion
front
sagittal
longitudinal
the axis around which the movement takes places is always ______ to the plane in which it occurs
perpendicular
frontal axis of body
aka transverse axis, is perpendicular to the sagittal plane
sagittal axis of body
perpendicular to the frontal plane
longitudinal
aka vertical axis
perpendicular to the transverse plane
occur in the sagittal plane around a frontal-horizontal axis
flexion extension hyperextension dorsiflexion plantar flexion
occur int he frontal plane around a sagittal-horizontal axis
abduction adduction side flexion of the trunk elevation and depression of the shoulder girdle radial/ulnar deviation of wrist eversion/inversion of foot occur in the frontal plane around a sagittal-horizontal axis
occur in the transverse plane around the longitudinal axis
rotation of head, neck & trunk internal rotation or external rotations of arm/leg horizontal adduction/abduction of the arm or thigh
involves an orderly sequence of circular movements that occur in the sagittal, frontal and oblique planes
so that segment as a whole incorporates a combination of flexion extension abduction adduction
circumduction
study of motion
kinematics
two major types of motion involved
osteokinematic
arthrokinematic
osteokinematic motion occurs when
any object forms the radius of an imaginary circle about a fixed point
the axis of rotation for osteokinematic motions is
oriented perpendicular to the plane in which the rotation occurs i.e.:
abduction/adduction of arm
flexion of hip/knee
side flexion of trunk
arthrokinematic movements
the motions occurring at joint surfaces
direction of movement based on the _____ of the joint surfaces
shape
generally, joint surfaces can be either _____ or ____ in shape (ovoid), or a ______
concave (female)
convex (male)
combination of both shapes (sellar)
3 types of movement occur at the articulating surfaces
roll
slide
spin
osteokinematic and arthrokinematic motions are
directly proportional to each other and one cannot occur completely without the other
if motion is reduced
one, or both of osteokinematic or arthokinematic motions is at fault
the number of independent modes of motion at a joint is called the
degrees of freedom (DOF)
a joint that can swing in one direction or can only spin =
1 DOF
ie: PIP joint
a joint that can spin and swig in one way only or it can swing in two completely distinct ways, but not spin=
2 DOF
ie: tibiofemoral joint
if the joint can spin and also swing in two distinct direction then =
3 DOF
ie: glenohumeral joint
the position of maximum congruity of the opposing joint surfaces
close-packed position of the joint (table 3-1 pg. 83)
movements toward the close-packed position of a joint involve
an element of joint compression (approximation)
position of maximum joint stability
ie: elbow= extension
close-packed position
-end of travel in a joint =
the surfaces are at maximum congruency, the ligaments are taut, and further movement in that direction of travel may result in dislocation or fracture
the position of least joint congruity
open-packed position (table 3-2 pg. 84)
open-packed position
-movements away from the close-packed position involve an element of joint distraction
separation
open packed-position
position of least joint stability i.e: elbow= 70 degrees flexion and 10 degrees supination
loose or open-packed position
the positions of travel of a joint away from eh close packed position where by the capsule and ligaments are NOT TAUT
loose or open packed pos.
-extreme movement in that direction usually results in
sprain/strain
if a joint moves less than what is considered normal, or when compared to the same joint on the opposite extremity
hypomobile
a joint that moves more than considered normal, or when compared to the same joint on the opposite extremity
hypermobile
instability of a joint involves disruption of the ____ and ____ structures of that joint, resulting in a _____ ___ ______
osseous
ligamentous structures
loss of function
factors of joint integrity (bone fits bone)
elastic energy
passive stiffness
muscle activation
elastic energy
stored energy that allows elastic tissue to return to original
passive stiffness
found at end range when lost = laxity
muscle activation
correct synergistic and antagonistic balance both in timing an strength - otherwise= buckling or shear translation
during daily activities, ____ and _____ forces are either generated or resisted by the body
external
internal
external forces
ground reaction force, friction, and gravity
internal forces
muscle contraction, joint contact and joint shear forces
tissues must demonstrate the ability to withstand _____ or ____ stresses if musculoskeletal health is to be maintained
excessive
repetitive
the capacity of tissue to withstand STRESS is dependent on a number of factors
- age
- the proteoglycan and collagen content of tissue
- the ability of the tissue to undergo adaptive change
- the speed at which the adaptive change must occur- depends on the type and severity of insult to tissue
kinetics
the study of FORCES created as motions change (kg)
mass
the QUANTITY of matter composing a body
inertia
the RESISTANCE to action or to change
center of gravity
a point around which the weight and mass are equally balanced in all directions
force
a VECTOR QUANTITY, with magnitude, direction and point of application to a body
load
the TYPE of force applied