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LOWER EXTREMITY. Francis Neuffer, MD USC SOM Gross Anatomy / Radiology. OUTLINE. Hip Trauma Knee Degeneration Ankle Vascular Injury Foot Sports Injury. FEMORAL HEAD. ACETABULUM. FEMORAL NECK. AP HIP . GREATER TROCHANTER. FOVEA CAPITIS. LESSER TROCHANTER.
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LOWER EXTREMITY Francis Neuffer, MD USC SOM Gross Anatomy / Radiology
OUTLINE Hip Trauma Knee Degeneration Ankle Vascular Injury Foot Sports Injury
FEMORAL HEAD ACETABULUM FEMORAL NECK AP HIP GREATER TROCHANTER FOVEA CAPITIS LESSER TROCHANTER CORTICAL BONE MEDULLARY BONE
RT. HIP Pediatric Adult
CORONAL MRI RT. HIP
BONE DENSITY MEASUREMENT NUCLEAR MEDICINE
ACETABULAR FRACTURE Dashboard fracture CT SCAN OF THE PELVIS SHOWS FRACTURE
AVASCULAR NECROSIS Bone scan X-ray MRI
FRACTURED LT. FEMUR LAT AP
DESCRIBE THE FRACTURE AP • BONE AND WHICH PART • FRACTURE ORIENTATION AND PARTS • DISPLACEMENT AND ANGULATION • JOINT / SOFT TISSUE INVOLVEMENT LAT
EXAMPLE There is an oblique fracture through the diaphysis of the femur with approximately 1cm of lateral and anterior displacement of the distal fragments relative to the proximal fragments. There is no angulation at the fracture margin. There is some shortening due to unopposed muscle pull. The fracture does not extend into the joint.
DISTAL FEMUR KNEE Medial epicondyle Lateral epicondyle Lateral tibial condyle Intercondylar eminence Medial tibial condyle Head of fibula Tibial tuberosity
KNEE LATERAL AP
Tendon Rupture Which One?
MRI RIGHT KNEE coronal section anterior Scan level
MEDIAL - Sagittal sections MEDIAL MENISCI PCL LATERAL MENISCI ACL PATELLA TENDON LATERAL
SAGITAL MR KNEE (MID JOINT) QUADRICEPS TENDON POSTERIOR CRUCIATE LIGAMENT Scan level PATELLA ANTERIOR CRUCIATE LIGAMENT PATELLAR TENDON
PATELLA FRACTURE NORMAL
NORMAL QUADRACEPS TENDON INJURY PATELLA TENDON INJURY
POST OPERATIVE LIGAMENT REPAIR Stabilization of ligament by surgical graft and screws
MENISCUS NORMAL TORN
POST OP KNEE REPLACEMENT Degenerative arthritis POST-OP
LOWER LEG TIBIAL TUBEROSITY HEAD OF FIBULA FIBULA TIBIA FIBULA LATERAL MALLEOLUS MEDIAL MALLEOLUS AP LATERAL
AP ANKLE Tibial shaft Fibular shaft Medial malleolus of the tibia Lateral malleolus of the fibula Talus
LATERAL ANKLE tibia fibula talus navicular cuboid calcaneus
FRACTURES THROUGH THE MEDIAL AND LATERAL MALLEOLI.
THIS CT SCAN SHOWS FRACTURES THROUGH THE MEDIAL AND LATERAL MALEOLI.
AP FOOT DIP PIP DISTAL PHALANX MIDDLE PHALANX PROXIMAL PHALANX PHALANGES MTP CUNIFORMS METATARSALS SESAMOID BONES 3RD 2ND 1ST IV III II I V SCAPHOID CUBOID TALUS TARSALS CALCANEUS
LATERAL FOOT (NAVICULAR) (3) CUNEIFORMS TALUS METATARSALS PHALANGES SUSTENTACULUM TALI CALCANEUS CUBOID SESAMOID BONE CALCANEAL TUBEROSITY
CALCANEAL FRACTURE PATIENT FELL OFF OF A LADDER
DIABETIC OSTEOMYLITIS Note air in soft tissues on right due to bacterial growth.
BONE SCAN OSTEOMYELITIS Increased activity on bone scan supports osteomylitis in metatarsal
GOUT Urate crystal deposits cause inflammation and erosion.
AP PELVIC ARTERIOGRAM 1 6 • ABDOMINAL AORTA • COMMON ILLIAC ARTERY • INTERNAL ILLIAC ARTERY • EXTERNAL ILLIAC ARTERY • COMMON FEMORAL ARTERY • LUMBAR ARTERY 2 3 4 5
CONVENTIONAL ANGIOGRAM 1= Common femoral artery 2= Superficial femoral artery 3= Profunda femoral artery (Deep artery of the thigh) 4= Lateral femoral circumflex artery CALCIFICATION outlines superficial femoral artery. 1 4 3 2
ARTERIAL CALCIFICATION
LOWER EXTREMITY ARTERIOGRAM 1 2 1 2 3 3 • COMMON FEMORAL ARTERY • PROFUNDA FEMORIS ARTERY (Deep artery of the thigh) • SUPERFICIAL FEMORAL ARTERY
LOWER EXTREMITY ARTERIOGRAM POPLITEAL ARTERY 4 Subtraction image
LOWER EXTREMITY ARTERIOGRAM • 4. POPLITEAL ARTERY • ANTERIOR TIBIAL ARTERY • POSTERIOR TIBIAL ARTERY • 7. FIBULAR ARTERY 4 5 6 7
SUPERFICIAL FEMORAL ARTERY ARTERIOGRAM
BALLOON ANGIOPLASTY OF SFA