stifle and tarsus first year anatomy nicholas urbanek, bvms, mrcvs
TRANSCRIPT
Stifle and Tarsus
First Year AnatomyNicholas Urbanek, BVMS, MRCVS
Stifle
The Stifle • Limited views due to proximal location of joint• Routinely obtain only TWO views– Lateral (caudal 60 degree lateral-craniomedial
oblique)– Craniocaudal (caudoproximal-craniodistal oblique)
Lateral view Craniocaudal view
Stifle – Lateral viewA. Supracondylar fossaB. FemurC. Patella – Apex and BaseD. Medial and lateral trochlea ridgesE. Medial and lateral femoral condyleF. Intercondylar eminence of tibiaG. Trochlear GroveH. TibiaI. Tibial tuberosityJ. Fibula
A
B
C
DE
FG
H
I
J
Stifle – Craniocaudal view
A. Lateral border of patellaB. FemurC. Medial epicondyleD. Medial condyleE. Lateral epicondyleF. Lateral condyleG. Intercondylar fossaH. Medial and lateral intercondylar eminenceI. Tibial tuberosityJ. TibiaK. Fibula
I
H
KJ
GF
E
D
CB
A
Bone Cyst
Stifle OCD
Tarsus
The Tarsus
• Same views, different joint!• Lateral-Medial• Dorsal-Plantar• Dorsolateral-plantaromedial oblique (DLPMO)– Highlights the plantarolateral and dorsomedial
aspects• Dorsomedial-plantarolateral oblique (DMPLO)– Highlights the plantaromedial and dorsolateral
aspects
Tarsus - Lateral view
Bones:A: TibiaB: CalcaneousC: Central tarsal boneD: Third tarsal boneE: Sustentaculum taliF: Third metatarsal bone
Joints:I: Tarsocrural jointJ: Proximal intertarsal jointK: Distal intertarsal jointL: Tarsometarsal jointM: Talocalcaneal joint
E
Tarsus – DP viewBones:A: TibiaB: CalcaneousC: Central tarsal boneD: Third tarsal boneE: Forth tarsal bone – “Two story bone”F: Third metatarsal bone1: Medial trochlear ridge of talus2: Medial malleolus3: Lateral malleolus
Tarsus – DMPLO viewA: TibiaB: CalcaneousC: Central tarsal boneD: Third tarsal boneF: Third metatarsal boneH: Second metatarsalN: Second tarsal bone4: Lateral trochlear ridge – “Larry’s
Nose”5: Sustentaculum tali
Tarsus – DLPMO viewA: TibiaB: CalcaneousC: Central tarsal boneD: Third tarsal boneE: Forth tarsal boneF: Third metatarsal boneG: Forth metatarsal bone1: Medial trochlear ridge2. Medial malleolus6: Distal intermediate ridge
Tarsal Diseases
• OCD - three main locations– Lateral and medial malleoli– Distal intermediate ridge of the tibia (DIRT)– Lateral and medial trochlear ridges
• Degenerative Joint Disease– Distal intertarsal joint – Tarsometatarsal joint
Tarsal OCD
Tarsal DJD