Lecture 19 the shank, test 3 Flashcards
three medical concerns with the tibial tuberosity
osgood schlatters, avulsion fracture, chronic dislocation of (petellar lig)
what kind of joing is the proximal tib-fib joit
synovial plane joint with some gliding movement
what movement occurs at the tib fib joint with knee flexion
bicepc and lcl tendon are slack and fibular shifts forward, opposite in extension
what tendon provides support to the proximal tib-fib joint
po;liteal muscle, tendon
also semimembranosus fascia
what are the palpable borders of the tibia?
ant, medial, medial surface
where is the nutrient foramen on the tibia?
posterior, inf to soleal line
what is the articulation with the fibula on the tibia called, distally?
fibular notch
which distal tib-fib lig is essential for weight bearing? where is it?
transverse tibio fibular ligament, (posterior
What usually happens with pathology of the posterior tib fib lig, why?
very strong, get avulution of maleouls (trimallelar fracture)
what nerve and artery run in the anterior compartment?
deep peroneal n, ant tibial aa
what artery run in the lateral compartment
peroneal aa and nerve
what nerve and a runs in the posterior compartment?
tibial n, posterior tibial a–
what divides the deep and superficial muscles of the posterior compartment?
deep muscles do not attache to the achiles
what muscles would be effected by anterior compartment syndrom?
ta, extensor hl, edl (ie dorsiflexion)= drop foot during swing
what are the 5 p’s indicating fasciatiomy for anterior compartment syndrom?
pain, palor, pulselessness, parasthesia, paralysis
two extensor retinaculums:
superior, and inferior y
what is unique (clinically useful) about the innervation to ehl?
only anterior peroneal nerve that is “deep” branch of the peroneal nerve, “can you wiggle toes”
what is unique about peroneus tertius?
unlike the other two peroneals, does dorsiflexion with edl
as deep peroneal nerve continues to foot, where does it provide sensory innervation to?
between toes one and two
does peroneous longus touch the calcaneous?
no, it lies on top of the tendon to peroneous brevis
what prevents bowstringing of the peroneal tendons?
superior and inferor peroneal reticulm (has a common synovial sheath)
what is the blood supply for the lateral compartment?
does not have a dedicated blood supply; prox= perforating branches form atnerior tibial, dist= perforating branches from fibualr
which is the deepest of the “ near the knee” muscles?
popliteus
what structure is bakers cyst assc with?
inflammation of smimembranous bursa (and meniscal tear)
tarsal tunnel syndrome would cause what symptoms?
inner surface of foot, pain under metatarsals (post tibial artery and nerve)
which is more superficial, FDL or FHL?
FDL
on what bone is the groove for the FHL?
calcaneous
where does the fibular artery terminate?
in a network at the calcaneous
which bv does anterior posterior and lateral compartments?
fibular artery
