quiz #2 (pelvis -> TMJ) Flashcards
pubic symphysis (pubic) joint - type & movements
cartilaginous, symphysis, amphiarthrosis, uniaxial
gliding, little motion (2mm) increases during pregnancy
-superior & inferior glide, separation, distraction, compression
pubic symphysis (pubic) joint - articular surfaces
symphyseal surfaces covered by hyaline of two pubic bones with fibrocartilaginous disc in between
pubic symphysis (pubic) joint - ligaments
superior & inferior (arcuate) pubic ligaments, fibrocartilaginous disc
pubic symphysis (pubic) joint - loose & close packed position
joint uniquely shaped
no loose or closed packed position
pubic symphysis (pubic) joint - capsular pattern of restriction
pain when joint is stressed
inferior glide of pubic bone - leg position
slight flexion, ADD & internal rotation
acetabulofemoral (hip) joint - type & movements
synovial, ball & socket, diarthrosis, triaxial
flexion, extension, ADD, ABD, medial/ internal rotation, lateral/ external rotation, circ.
acetabulofemoral (hip) joint - articular surfaces
convex head of femur with concave lunate surface of acetabulum on labrum
acetabulofemoral (hip) joint - ligaments
-fibrous capsule
-labrum, zona orbicularis, ligamentum capitis femoris (ligamentum teres)
-transverse acetabular
-iliofemoral (Y ligament of Bigelow) pubofemoral & ischiofemoral
acetabulofemoral (hip) joint - loose packed position
30º flexion, 30º ABD, slight lateral rotation
acetabulofemoral (hip) joint - close packed position
full extension, medial rotation, ABD
acetabulofemoral (hip) joint - capsular pattern of restriction
flexion, ABD, medial rotation
medial glide of femur (AF joint)
EFFECT: increase hip ABD, pain management
PRECAUTIONS: if SI or pubic symphysis unstable, L spine should be neutral to avoid injury
*pt side lying
-stabilizing hand: distal femur, medial knee
-mobilizing hand: soft contact to direct mobilization of trochanter inferiorly & medially while distracting
*suggestions: lower table, use body weight to direct mobilization, axial distraction first
sacroiliac joint - type & movements
synovial, plane (also fibrous, syndesmosis), diarthrosis & amphiarthrosis
gliding (slight), nutation & counternutation
sacroiliac joint - articular surfaces
C-shaped auricular surface, concave sacral surface (covered in hyaline cartilage) on sacrum
C-shaped auricular surface, convex ilium surface (covered in fibrocartilage) on ilium
sacroiliac joint - ligaments
joint capsule
-iliolumbar
-anterior sacroiliac
-interosseous
-posterior; long & short sacroiliac
-sacrotuberous
-sacrospinous
nutation
-base of sacrum moves inferiorly & anteriorly
-enlarges pelvic outlet
-ischial tuberosities move apart
-symphysis pubis approximates
-iliac crests approximate
-PSIS separates
-ASIS flares in
counter nutation
-base of sacrum moves superiorly & posteriorly
-enlarges pelvic inlet
-ischial tuberosities approximate
-pubic symphysis separates
-iliac crests separate
-PSIS approximates
-ASIS flares out
sacroiliac joint - loose & close packed position
loose: neutral
close: full nutation
sacroiliac joint - capsular pattern of restriction
pain with stressing joint
sacrococcygeal joint - type & movements
cartilaginous, symphysis, amphiarthrosis, uniaxial
small amount of flexion & extension, especially during defecation & childbirth, fuses with age
sacrococcygeal joint - articular surfaces
inferior surface apex of sacrum
superior surface base of coccyx
sacrococcygeal joint - ligaments
-fibrocartilaginous disc
-sacrococcygeal (anterior, lateral, superficial posterior, deep posterior)
-intercornual
tibiofemoral (knee) joint - type & movements
synovial, hinge, diarthrosis, biaxial
gliding, flex, ext, hyperextend, lateral/ external rotation, medial/ internal rotation
tibiofemoral (knee) joint - articular surfaces
convex medial & lateral femoral condyles with concave medial & lateral superior articular surfaces of tibia (tibial plateu)
tibiofemoral (knee) joint - ligaments
EXTRAcapsular: fibrous capsule, patella, medial & lateral patellar retinaculum, MCL< LCL, oblique popliteal, arcuate popliteal
INTRAcapsular: ACL, PCL, posterior meniscofemoral, transverse, coronary, medial & lateral menisci
anterior cruciate ligament (ACL)
from medial aspect of lateral femoral condyle
to anterior aspect of tibial intercondylar eminence
resists anterior translation & medial rotation of tibia on femur
-taut in hyperextension
posterior cruciate ligament (PCL)
from posterior aspect of intercondylar eminence to lateral aspect of medial femoral condyle
resists posterior translation of tibia on femur
-taut in hyperflexion
medial collateral ligament (MCL)
resists VALGUS forces
lateral collateral ligament (LCL)
resists VARUS forces