Items tagged “orthopaedics”
90 results found
Case
Maisonneuve fracture
Published
04 Jun 2013
94% complete
Annotated image
X-ray
Article
Carpometacarpal joint dislocation
Carpometacarpal (CMC) joint dislocations are uncommon dislocations of the hand.
Epidemiology
There is a strong younger male predominance. These injuries account for less than 1% of hand injuries 4 and are more common in the dominant hand.
Associated injuries
The following injuries should rai...
Case
5th carpometacarpal joint dislocation
Published
29 Jun 2016
82% complete
X-ray
Case
Tibialis anterior tendon transfer
Published
02 Jul 2013
65% complete
MRI
X-ray
Annotated image
Article
Calcaneal inclination axis
The calcaneal inclination axis is drawn between the most inferior portion of the calcaneal tuberosity and the most distal and inferior point of the calcaneus at the calcaneocuboid joint on a weight-bearing lateral foot radiograph. It can be used to draw the calcaneal inclination angle.
Article
Mid-talar axis
The mid-talar axis represents a line drawn down the longitudinal axis of the talus and can be drawn on lateral and DP radiographs.
Measurement
Independent on the view on which the line is drawn, it should bisect the neck of the talus and the head.
On the lateral and DP views, the line should...
Article
Calcaneal inclination angle
The calcaneal inclination angle, also known as the calcaneal pitch, is useful in assessing medial arch height.
Measurement
This angle is formed on a weight-bearing lateral foot radiograph between the calcaneal inclination axis (i.e. most inferior part of the calcaneus) and the supporting hori...
Article
Talar declination angle
The talar declination angle is used to assess the longitudinal arch height including in Charcot foot.
Measurement
The talar declination angle is drawn on the weight-bearing lateral foot radiograph between the mid-talar axis and the supporting surface.
Interpretation
It should usually measure...
Article
First metatarsal axis
The first metatarsal axis is represented by a line drawn down the longitudinal axis of the shaft of the first metatarsal. It can be drawn on lateral and DP radiographs and is used to measure the:
first metatarsal inclination angle
talo-first metatarsal angle
Article
Angle of the longitudinal arch (foot)
The angle of the longitudinal arch (calcaneal–fifth metatarsal angle) is one of the angles drawn on the weight-bearing lateral foot radiograph.
Measurement
The angle is formed between the calcaneal inclination axis and a line drawn along the inferior edge of the 5th metatarsal.
Interpretation...
Article
Midfoot equinus
Midfoot equinus is an abnormality in foot alignment where there is abnormal plantarflexion of the foot in the midfoot 1.
History and etymology
Equinus is the possessive form of equus, the Latin for horse and was originally used for foot deformities in which there is plantar flexion such that a...
Case
ACL avulsion with fibula fractures
Published
14 Jul 2013
95% complete
X-ray
Annotated image
Diagram
CT
Case
Bankart injury with Hill-Sachs lesion
Published
16 Jul 2013
92% complete
MRI
Article
Herbert screw
A Herbert screw is an instrument used in the internal fixation of an unstable scaphoid fracture. It is a headless screw with thread along its entire length. The two halves of the screw have a different pitch though, which causes compression of the fracture.
Indications
Unstable scaphoid fractu...
Case
L4/5 left paracentral disc extrusion with left L5 and S1 nerve root compression and left S1 nerve root enhancement
Published
06 Oct 2013
92% complete
MRI
Case
Pathological subtrochanteric neck of femur fracture
Published
17 Oct 2013
94% complete
X-ray
Case
Lateral patellar dislocation
Published
12 Nov 2013
92% complete
MRI
Case
Thoracic and abdominopelvic multitrauma
Published
13 Dec 2013
98% complete
X-ray
CT
Article
Lateral patellar dislocation
Lateral patellar dislocation refers to lateral displacement followed by dislocation of the patella due to disruptive changes to the medial patellar retinaculum.
Epidemiology
Patellar dislocation accounts for ~3% of all knee injuries and is commonly seen in those individuals who participate in ...
Case
Acromial fracture
Published
17 Feb 2014
90% complete
CT
X-ray