Foot and ankle 5 Flashcards
What tendon and accompanied action may cause an avulsion fracture of the 5th metatarsal base
Peroneus Brevis with PB contraction eversion with PF in inversion
What lateral tendon can sublux and where?
PB over the lateral mallelous
Insertion and origin of Peroneus Tertius
Origin andterior surface of the fibula and insertion at the 5th Metatarsal base. EDL and PT tenosyovitis “halo sign” of fluid surronding the EDL
Peroneus Quatus: What is it and what can it do?
An accessory muscle. Could crowd the retro malleolar groove, predisposing to PB tendon to attrition and tear.
Tarsal Tunnel: what does Tom, Dick and Very, Nervous Harry stand for?
- TB tendon, 2. FDL tendon and 3. Tibial veins and artery and Tibial Nerve and FHL tendon
What are the branches of the Tibial nerve into the foot
- Medial Calcaneal nerve 2. Medial plantar nerve, 3. Lateral plantar nerve
What is Baxter’s nerve
Heel pain is entrapment of first branch of the lateral plantar nerve
If a patient presents with numbness of the heel, what do you image?
tarsal tunnel and tibial nerves
Review of posterior to the medial malleolus image
pic of medial malleolus
Image of TD and very nervous Harry
see pic
Ganglion Cyst compressing Tibial nerve and note the PT tendon can becom tendinotic causing tibial nerve compression
see pic
FHL is near what triangle
Kagers triangle
What does the word aponeuroses mean?
becoming tendon
What is the Achilles tendon made of:
fusion of the gastrocnemicus aponeurosis and the tendon of the underlying soleus
Origin and insertion of the plantaris tendon, what are its actions? And what can it mimic?
see pic
imaging the plantaris tendon
see pic
What is some of the anatomy deep to the Achilles tendon at its insertion?
Retro calcaneal bursa, Kagers fat pad
image of the retro cal busa interface
see pic
Name the 3 muscles, starting from the tibia to the ACH tendon
Tib post, FHL and soleus
What is the normal cross sectional thickness of the ACH
5.5-6.5 mm
What is the dx with a pump bump
retro calcaneal burasl effusion–>teninopathy and calcaneal bone callous
Image of Haglunds deformity
see pic
Plantar Fascia on many fascia bands and which one is problematic with plantar fasciitis
3 bands and medial is problematic
name the 4 plantar foot muscles and where they are located
QP-deep, superficial: FDB, ADM and AH
What is the nomral measurment for the plant fascia?
3-4 mm
What is useful to clinically perform the imaging plantar inter-digital spaces
dorsal compression is useful to detect neuroma and fluid ocllections
Image: identifying mortons neuromas
image
Where is morton neuromas most commonly seen
3rd interspace (between 3 and 4th toes
What clinicall is highly suggestive of a Liz Franc Liament midfoot disruption?
Bruising on the bottom of the foot
What is the disruption in a LisFranc problem
It is a LisFranc Ligament, mod-foot problem. The ligament is an attachment to the plantar surface of the medial cuneiform that run distal and lateral to attach to the base of the second metatarsal
image of soft tissue gas, what is indictive of?
infection
Image of plantar fibroma and lipoma
image
image of osteomyelitis/abcess
image
image of ganglion cyst and schwannoma
image
Foreign body: the difference between glass and splinter
Glass: posterior shadowing and reverberation artifact, splinter, posterior shadowing with no reverberation artifact.
