Items tagged “orthopaedics”

72 results found
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 weightbearing 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.  lateral view: line should bisect the shaft of the first metatarsal DP view: line should intersect (or pass just medial to) the base of the first metatarsal I...
Article

Calcaneal inclination angle

The calcaneal inclination angle (also known as the calcaneal pitch) is drawn on a weightbearing lateral foot radiograph between the calcaneal inclination axis and the supporting horizontal surface. It is a measurement that reflects the height of the foot framework, but is affected by abnormal p...
Article

Talar declination angle

The talar declination angle is drawn on the weightbearing lateral foot radiograph between the mid-talar axis and the supporting surface. It should usually measure approximately 21°. If the first metatarsal axis is steep, the mid-talar axis approaches the horizontal and is projected above the fi...
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 is one of the angles drawn on the weightbearing lateral foot radiograph. The angle is formed between the calcaneal inclination axis and a line drawn along the inferior edge of the 5th metatarsal. The normal angle is 150-170°. In pes cavus, as the height of th...
Article

Midfoot equinus

Midfoot equinus is an abnormality in foot alignment where there is abnormal plantarflexion of the foot in the midfoot. Related pathology Midfoot equinus occurs as a component of congenital talipes equinovarus.
Case

ACL avulsion with fibula fractures

 Diagnosis certain
Dr Matt Skalski
Published 14 Jul 2013
95% complete
X-rayAnnotated imageCTDiagram
Case

Bankart injury with Hill-Sachs lesion

 Diagnosis certain
Dr Nafisa Shakir Batta
Published 16 Jul 2013
92% complete
MRI
Article

Herbert screw

A Herbert screw is an instrument is used in internal fixation of 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 fractures ...
Case

L4/5 left paracentral disk extrusion with left L5 and S1 nerve root compression and left S1 nerve root enhancement

 Diagnosis certain
Dr Henry Knipe
Published 06 Oct 2013
92% complete
MRI
Case

Pathological subtrochanteric neck of femur fracture

 Diagnosis certain
Dr Henry Knipe
Published 17 Oct 2013
94% complete
X-ray
Case

Lateral patellar dislocation

 Diagnosis certain
Dr Andrew Lawson
Published 12 Nov 2013
92% complete
MRI
Case

Thoracic and abdominopelvic multitrauma

 Diagnosis certain
RMH Core Conditions
Published 13 Dec 2013
98% complete
X-rayCT
Article

Lateral patellar dislocation

Lateral patellar dislocation refers to lateral displacement followed by dislocation of 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 spor...
Case

Acromial fracture

 Diagnosis certain
Dr Henry Knipe
Published 17 Feb 2014
95% complete
X-rayCT
Case

Early scapholunate advanced collapse treated with scaphoidectomy and four-corner fusion

 Diagnosis certain
Dr Henry Knipe
Published 21 Aug 2014
88% complete
X-ray
Case

Fulkerson procedure

 Diagnosis certain
Dr Henry Knipe
Published 10 Dec 2014
91% complete
X-ray
Case

Trans-scaphoid perilunate fracture-dislocation

 Diagnosis certain
RMH Core Conditions
Published 20 Jan 2015
95% complete
X-rayCT
Case

Bony Bankart and Hill-Sachs lesions

 Diagnosis certain
Dr Henry Knipe
Published 19 Jan 2015
95% complete
X-rayCT

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