Search results for “also”
69 results found
Article
First metatarsophalangeal angle
The first metatarsophalangeal angle, also known as hallux valgus angle (HVA) or hallux abductus angle, is a measurement used to assess the presence and severity of the alignment of the first metatarsophalangeal joint on a weight-bearing dorsoplantar radiograph of the foot.
Measurement
The angl...
Article
Gunshot injuries
Gunshot injuries are a type of penetrating trauma that often require imaging assessment, and this evaluation has both clinical relevance (assessment of organ damage, surgical planning, and prognostication), and often also forensic implications.
Epidemiology
Incidence of gunshot injuries to the...
Article
Describing a bone lesion
Describing a bone lesion is an essential skill for the radiologist, used to form an accurate differential diagnosis for neoplastic entities, and occasionally non-neoplastic. In addition to patient demographics, the radiographic features of a bone lesion are often the primary determinant of non-h...
Article
Ottawa knee rules
The Ottawa knee rules are a clinical decision-making strategy for determining which patients require radiographic imaging for knee pain following trauma.
A patient with knee pain qualifies for knee radiographs if any of the following apply:
55 years or older
point tenderness at the fibular he...
Article
Trochlear facet asymmetry
Trochlear facet asymmetry (FA) refers to the condition of the medial facet being abnormally small if compared to the lateral facet in trochlear dysplasia 1.
Usage
Facet asymmetry is also used as a measurement in magnet resonance imaging for trochlear dysplasia to make it more objective 1-3, th...
Article
Wrist radiograph (an approach)
Wrist radiographs are ubiquitous on any night of the week in emergency departments, especially when pavements are icy!
Systematic review
Choosing a search strategy and utilizing it consistently is a helpful method to overcome common errors seen in diagnostic radiology. The order in which you ...
Article
Low grade central osteosarcoma
Low-grade central osteosarcomas (LGCOS) or well-differentiated intramedullary osteosarcomas are low-grade malignant bone-forming tumors typically arising within the intramedullary cavity of bone.
Epidemiology
Low-grade central osteosarcomas are uncommon and account for 1-2% of all osteosarcoma...
Article
Intermetatarsal angle
The intermetatarsal angle is a measurement used to assess hallux valgus and metatarsus primus varus deformities.
Terminology
The term intermetatarsal angle alone typically refers to assessment of the first and second metatarsals. Occasionally the term first intermetatarsal angle is used to spe...
Article
Böhler angle
The Böhler angle, also written as Bohler angle or Boehler angle, is also called the calcaneal angle or tuber joint angle. It is used in the assessment of intra-articular calcaneal fractures.
Measurement
The Böhler angle is the angle on a lateral foot radiograph between a line joining the highe...
Article
Gissane angle
Gissane angle, also known as the "critical angle of Gissane", is a measurement on lateral foot radiographs used to evaluate the severity of calcaneal fractures.
Measurement
The Gissane angle is measured by drawing lines along the superior surfaces of the anterior process and the posterior face...
Article
Acromiohumeral interval
Acromiohumeral interval is a useful and reliable measurement on AP shoulder radiographs and when narrowed is indicative of subacromial impingement, rotator cuff tear and/or tendinopathy. In patients with rotator cuff repair, a narrow acromiohumeral interval is a risk factor for re-tear 7.
Meas...
Article
Wrist radiograph (approach)
Wrist x-rays are commonly used for the assessment of the wrist following trauma. This is usually a fall onto an outstretched hand.
Systematic review
It is useful to have a systematic approach; I tend to start proximally and work distally looking at structures on both views together:
distal ra...
Article
Cobb angle
The Cobb angle is the most widely used measurement to quantify the magnitude of spinal deformities, especially scoliosis, on plain radiographs. Scoliosis is a lateral spinal curvature with a Cobb angle of >10° 4. The Cobb angle technique can also assess the degree of kyphosis or lordosis in the ...
Article
Evaluation of recurrent bone tumors
Recurrent bone tumors are a common complication post curettage or resection.
Radiographic features
Radiographs taken pre- and postoperatively are sufficient for evaluation of recurrence based on the following features:
osteolytic changes
cortical changes
matrix mineralization (characteristi...
Article
Groin pain
Groin pain is a symptom manifesting in a wide spectrum of clinical disorders and diseases in athletes and non-athletes.
The Doha agreement in 2014 identified and classified groin pain in athletes and defined the following clinical entities 1,2:
adductor-related, pubic-related, inguinal-related...
Article
Knee radiograph (an approach)
Knee radiographs are common and often a quick and easy diagnostic exam in the emergency setting. An efficient approach to them requires a good understanding of anatomy with review strategies to ensure an accurate diagnosis.
Systematic review
Choosing a search strategy and utilizing it consiste...
Article
Ultrasound of the shoulder
Ultrasound of the shoulder is a fast, relatively cheap, and dynamic way to examine the rotator cuff and is particularly useful in diagnosing:
shoulder impingement
shoulder instability
rotator cuff disorders
The examination requires attention to technique and appropriate patient positioning. ...
Article
CT ankle (protocol)
The CT ankle protocol serves as an examination for the bony assessment of the ankle and rearfoot and is almost always performed as a non-contrast study. It can be also combined with a CT arthrogram for the evaluation of chondral and osteochondral injuries or can encompass the whole foot in certa...
Article
Sonographic Mulder sign
The sonographic Mulder sign is the ultrasound correlate of the clinical Mulder sign during examination of the forefoot to investigate causes of metatarsalgia associated with Morton neuroma 1. The intermetatarsal space is predominantly composed of fat inferiorly and also contains the neurovascula...
Article
Tibiofibular overlap
The tibiofibular overlap (TFO) is the overlapping area between the anterior distal tibial prominence and the medial edge of the distal fibula 1-3.
Usage
Together with the tibiofibular clear space (TFCS) and the medial clear space, the tibiofibular overlap space has been used in the diagnosis a...
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