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LLimb Image Criteria

Lower Limb Image Criteria (115)

QuestionAnswer
Lateral Foot: Patient Position • Lateral recumbent on affected side with leg extended, support the knee if necessary • Center the foot to the IR • The lateral surface of the foot must be in contact with the IR • Dorsiflex the ankle 90° (foot perpendicular to leg)
Both AP Axial and AP Oblique Foot X-Rays show Open interphalangeal and metatarsophalangeal joints
AP Axial Foot – Image Criteria Includes all phalanges, metatarsals, first 5 tarsals and surrounding skin border. Not all of the talus and calcaneus will be visualized
AP Axial Foot – Image Criteria • Superimposed metatarsal bases 2-5, open base between 1 & 2 • Open joints between medial cuneiform and both the intermediate cuneiform and navicular
What X-Ray shows superimposed cuboid with lateral cuneiform and navicular? AP Axial Foot
AP Oblique Foot – Image Criteria Includes all phalanges, metatarsals, tarsals and surrounding skin border. Open interphalangeal and metatarsophalangeal joints
AP Oblique Foot – Image Criteria Open joints between cuboid and the; • 4th & 5th metatarsal bases • lateral cuneiform • calcaneus
What X-Ray shows superimposed medial and intermediate cuneiforms? AP Oblique Foot
AP Oblique Foot is the best view for- • Sinus tarsi • Tuberosity on the base of the 5th metatarsal • Cuboid
Lateral Foot (Mediolateral – Image Criteria Includes all phalanges, metatarsals, tarsals, distal tib/fib, and surrounding skin border. • Lower leg and foot at about 90° angle
Lateral Foot (Mediolateral – Image Criteria • Superimposed metatarsal heads 1 - 4 • Fibula superimposed by the posterior half of the distal tibia • Centered to tarsometatarsal joints
Which foot X-Ray shows an Open tibiotalar joint? Lateral Foot
Axial Calcaneus – Image Criteria Includes entire calcaneus from posterior tuberosity to past the talocalcaneal joint
Which X-Ray show; • Open talocalcaneal joint • Sustentaculum tali is in profile medially Axial Calcaneus
Lateral Calcaneus – Image Criteria Includes entire calcaneus through navicular, tibiotalar joint, and surrounding skin border. • Lower leg and foot at about 90° angle • Calcaneal Tuberosity in profile
Which X-Ray shows; • Open tibiotalar joint • Open sinus tarsi • Open calcaneocuboid joint • Open Talonavicular joint Lateral Calcaneus
AP Ankle– Image Criteria Open • Medial mortise joint • Tibiotalar joint
AP Ankle– Image Criteria Closed • Lateral mortise joint • Distal tibiofibular joint
AP Medial Oblique Ankle Mortise –Image Criteria Open • Medial mortise joint • Tibiotalar joint • Lateral mortise joint
Which X-Ray shows a closed Distal Tibiofibular Joint? AP Medial Oblique Ankle Mortise
AP 45° Medial Oblique Ankle –Image Criteria Open • Lateral mortise joint • Distal tibiofibular joint
AP 45° Medial Oblique Ankle – Image Criteria Closed • Tibiotalar joint • Medial mortise joint
Lateral Ankle – Image Criteria Includes entire calcaneus through 5th metatarsal base, about ¼ of distal tib/fib, and surrounding skin border. • Lower leg and foot at about 90° angle
Lateral Ankle – Image Criteria • Calcaneal Tuberosity in profile • Open tibiotalar joint
What X-Ray is centered to the Medial Malleolus Lateral Ankle
AP Tib/Fib – Image Criteria • Includes both knee and ankle joints and surrounding skin border. • Both knee and ankle are in AP position
AP Tib/Fib – Image Criteria • Fibular head partially superimposed by tibia • Distal fibula partially superimposed by tibia
Which X-Ray shows the fibular midshaft free of tibial superimposition? AP Tib/Fib
Lateral Tib/Fib: Image Criteria • Tibial tuberosity in profile • Proximal head of the fibula superimposed by the tibia • Distal fibula seen through posterior half of the tibia
Which X-Ray shows some superimposition of the femoral condyles? Lateral Tib/Fib
What are some characteristics of a regular AP Foot X-Ray? • Tarsometatarsal joints not well visualized • Metatarsals are slightly foreshortened
Created by: user-2016295
 

 



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