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AAST injury scoring scales

The American Association for the Surgery of Trauma (AAST) injury scoring scales are the most widely accepted and used system of classifying and categorising traumatic injuries. Injury grade reflects severity, guides management, and aids in prognosis. At the time of writing (mid 2016), 32 differe...

AAST kidney injury scale

The American Association for the Surgery of Trauma (AAST) renal injury scale 1,6 is the most widely used grading system for renal trauma at the time of writing (late 2016). Severity is assessed according to the depth of renal parenchymal damage and involvement of the urinary collecting system a...

AAST liver injury scale

The 1994 revision of the AAST (American Association for the Surgery of Trauma) liver injury scale is the most widely used liver injury grading system at the time of writing (late 2016). Classification grade I haematoma: subcapsular, <10% surface area laceration: capsular tear, <1 cm parenc...

AAST spleen injury scale

The 1994 revision of the American Association for the Surgery of Trauma (AAST) splenic injury scale is the most widely used grading system for splenic trauma at the time of writing (late 2016). Classification grade I subcapsular haematoma <10% of surface area capsular laceration <1 cm depth...

Abdominal aortic injury

Abdominal aortic injuries are a very rare form of traumatic aortic injury and are much less common than thoracic aortic injury. Epidemiology Aortic injury occurs in <1% of blunt trauma patients, with abdominal aortic injury representing only ~5% of all aortic injuries 1. Males are more freque...

Abdominal trauma

Abdominal trauma is usually divided into blunt and penetrating trauma. Findings of abdominal trauma haemoperitoneum splenic trauma: most common hepatic trauma renal trauma pancreatic trauma gastrointestinal tract (bowel) trauma: proximal jejunum is most commonly affected by blunt trauma,...

Acetabular fracture

Acetabular fractures are a pelvic fracture, which may also involve the ilium, ischium, and/or pubis depending on fracture configuration. Epidemiology Acetabular fractures are uncommon. The reported incidence is approximately 3 per 100,000 per year. This study reported a 63% to 37% male to fema...

Acromioclavicular injury

Acromioclavicular joint injuries are common and range from a mild sprain to complete disruption of the acromioclavicular joint (ACJ) and injury to surrounding structures. Clinical presentation Acromioclavicular joint injuries usually occur from a direct blow or following a fall onto the shoul...

Acute aortic syndrome

Acute aortic syndrome (AAS) describes the presentation of patients with one of a number of life threatening aortic pathologies that give rise to aortic symptoms. The spectrum of these aortic emergencies include: aortic dissection aortic intramural haematoma penetrating atherosclerotic ulcer ...

Adrenal gland trauma

Adrenal gland trauma most commonly results from blunt force trauma. Epidemiology Adrenal gland trauma is present on 1-2% of CT imaging in blunt trauma although the occurrence is thought to be much higher as injury has been demonstrated at 28% in one autopsy series 1-4. The right adrenal glan...

Allen and Ferguson classification of subaxial cervical spine injuries

Allen and Ferguson classification is used for research purposes to classify subaxial spine injuries. It is based ofn the mechanism of injury and position of the neck during injury. This classification was proposed by Allen and Ferguson in 19823 and at the time of writing (July 2016) remains the ...

American Academy of Orthopedic Surgeons classification of periprosthetic hip fractures

The American Academy of Orthopedic Surgeons classification of periprosthetic hip fractures divides the femur into three separate regions: level I: proximal femur distally to the lower extent of the lesser trochanter level II: 10 cm of femur distal to level I level III: femur distal to level...

Amputation

The term amputation refers to the disconnection of all or part of a limb from the body. Specifically amputation is defined as removal of the structure through a bone. This is in contrast to disarticulation, which is removal of the structure through a joint. When due to trauma, traumatic amputat...

Amsterdam wrist rules

The Amsterdam wrist rules are validated clinical decision rules for determining which patients require radiographic imaging (wrist radiography) for acute wrist pain following trauma. The initial study evaluated 882 patients and were published in 2015 1. The decision rules assessed different clin...

Anatomy curriculum

The anatomy curriculum is one of our curriculum articles and aims to be a collection of articles that represent the core anatomy knowledge for radiologists and imaging specialists. General anatomy Neuroanatomy Head and neck anatomy Thoracic anatomy Abdominal and pelvic anatomy Spinal anat...

Anderson and D'Alonzo classification of odontoid process fracture

The Anderson and D'Alonzo classification is the most commonly used classification of fractures of the odontoid process of C2. Classification type I rare fracture of the upper part of the odontoid peg above the level of the transverse band of the cruciform ligament usually considered stable...

Ankle fractures

Ankle fractures account for ~10% of fractures encountered in trauma, preceded only in incidence by proximal femoral fractures in the lower limb. They have a bimodal presentation, involving young males and older females. Ankle injuries play a major part in post multitrauma functional impairment t...

Anterior cruciate ligament avulsion fracture

Anterior cruciate ligament (ACL) avulsion fracture or tibial eminence avulsion fracture is a type of avulsion fracture of the knee. This typically involves separation of the tibial attachment of the ACL to variable degrees. Separation at the femoral attachment is rare 5. Epidemiology It is mor...

Anterior cruciate ligament tear

Anterior cruciate ligament (ACL) tears are the most common knee ligament injury encountered in radiology and orthopaedic practice. Pathology The ACL is the most commonly disrupted ligament of the knee, especially in athletes who participate in sports that involve rapid starting, stopping, and ...

Anterior dislocation of the hip

Anterior hip dislocation is much less common than a posterior hip dislocation. It constitutes for only 5-18% of all hip dislocations. Pathology While the posterior dislocation is often associated with fractures, the anterior dislocation is mostly an isolated injury 1. Subtypes It can be clas...

Anterior shoulder dislocation

Anterior shoulder dislocation is by far the commonest type of dislocation and usually results from forced abduction, external rotation and extension 1. Epidemiology Broadly speaking, anterior shoulder dislocations occur in a bimodal age distribution. The first, and by far the more prevalent a...

Anterior subluxation of the cervical spine

Anterior subluxation of the cervical spine, also known as hyperflexion sprain, is a ligamentous injury of the cervical spine. Clinical presentation Patients present with severe, focal neck pain. There may be neurological symptoms due to spinal cord injury. Pathology Anterior subluxation of t...

Anterior superior iliac spine avulsion injury

Anterior superior iliac spine (ASIS) avulsion injuries typically occur in athletes during forceful muscular contraction. ASIS is the site of attachment for sartorius and tensor fascia latae muscles. Pathology ASIS avulsion, like other pelvic avulsion injuries, is a stable fracture. Treatment...

Anterolisthesis

The term anterolisthesis refers to anterior displacement (forward slip) of a vertebral body relative to the one below. Its severity can be graded by the Meyerding classification and its aetiology classified according to the Wiltse type.

Antibiotic beads

Implanted antibiotic beads are a form of microbiological treatment inserted during orthopaedic procedures to aid with the treatment of chronic infection. They are also used as a local treatment for osteomyelitis. The beads are radiopaque, thus lending themselves to visualisation on all imaging ...

AO classification of sacral injuries

The AO classification of sacral injuries aims to simplify and universalise the process of classifying sacral injuries and improve interobserver and intraobserver reliability. The AO sacral classification is broken into three subsections that follow a hierarchical structure similar to the AO cla...

AO classification of subaxial injuries

The AO classification of subaxial injuries aims to simplify and universalise the classification of subaxial cervical spine fractures and improve interobserver and intraobserver reliability. The AO subaxial cervical spine injury classification involves four criteria based on morphology, facet in...

AO classification of thoracolumbar injuries

The AO classification of thoracolumbar injuries aims to simplify and universalise the process of classifying spinal injuries and improve interobserver and intraobserver reliability 3. The AOSpine thoracolumbar classification system consists of only three classes of thoracolumbar injuries. Unlik...

AO classification of upper cervical injuries

The AO classification of upper cervical injuries aims to simplify and universalise the process of classifying upper cervical injuries and improve interobserver and intraobserver reliability. Injuries are based on location specific patterns and divided into: type 1: occipital condyle and occipi...

Aortic isthmus

The aortic isthmus is the part of the aorta just distal to the origin of the left subclavian artery at the site of the ductus arteriosus. This portion of the aorta is partly constricted in the fetus because of the lack of flow within the aortic sac and ascending aorta. It marks the partial sepa...

Aortic pseudoaneurysm

Aortic pseudoaneurysms typically occur as a result of trauma, a subset of traumatic aortic injury. They can be acute or chronic. Pathology Aortic pseudoaneurysms are contained ruptures of the aorta in which the majority of the aortic wall has been breached, and luminal blood is held in only by...

AO Spine classification systems

The AO Spine classification systems are a group of anatomically based of imaging and clinical combined injury classification systems of spinal trauma designed to be a simple and reproducible method of describing injury patterns. At the time of writing (Oct 2018), the 4 published classification ...

Apophyseal avulsion fractures of the pelvis and hip

Apophyseal avulsion fractures of the pelvis and hip are relatively common among physically active adolescents and young adults. Epidemiology Pelvic and hip apophyseal injuries typically occur in the 14 to 25 year age range. Mechanism Kicking sports, such as soccer, and gymnastics are frequen...

Arthrofibrosis

Arthrofibrosis is a complication of injury or trauma to a joint. It can also be iatrogenic e.g. post knee surgeries. It consists of excessive scar tissue formation within the joint capsule, resulting in pain, stiffness, and swelling, that are greater than expected in the given clinical scenario....

Atlanto-axial subluxation

Atlanto-axial subluxation is a disorder of C1-C2 causing impairment in rotation of the neck. The anterior facet of C1 is fixed on the facet of C2. It may be associated with dislocation of the lateral mass of C1 on C2. Pathology Aetiology congenital os odontoideum Down syndrome (20%) Morqui...

Atlanto-occipital dissociation injuries

Atlanto-occipital dissociation injuries are severe and include both atlanto-occipital dislocations and atlanto-occipital subluxations. Pathology The tectorial membrane and alar ligaments provide most of the stability to the atlanto-occipital joint, and injury to these ligaments results in inst...

Aubergine sign (penis)

The aubergine sign (also known as egg-plant sign or deformity) is a clinical sign of a fractured penis. Haemorrhage beyond the tunica albuginea produces swelling and bruising of the penis simulating the appearance of an aubergine.

Aviator fracture

An aviator fracture is a coronal-plane fracture of the neck of the talus resulting from forced dorsiflexion of ankle. It is the second most common talar fracture, after talar dome fractures. In 20% of cases a fracture of the medial malleolus is also present 1. These fractures are at risk of av...

Avulsion fracture of the 5th metatarsal styloid

Avulsion fracture of the 5th metatarsal styloid, also known as a pseudo-Jones fracture or a dancer fracture, is one of the more common foot avulsion injuries and accounts for over 90% of fractures of the base of the 5th metatarsal. Despite what should be a simple entity, controversy exists, as ...

Avulsion fractures of the knee

Avulsion fractures of the knee are numerous due to the many ligaments and tendons inserting around this joint. They include 1: anterior cruciate ligament avulsion fracture posterior cruciate ligament avulsion fracture avulsion of the medial collateral ligament origin of MCL avulsion fracture...

Avulsion injuries

Avulsion injuries or fractures occur where the joint capsule, ligament, tendon or muscle attachment site is pulled off from the bone, usually taking a fragment of cortical bone. There are numerous sites at which these occur. Being familiar with them is important as subacute/chronic injuries can ...

Bado classification of Monteggia fracture-dislocations

The Bado classification is one of the more widely used classifications for Monteggia fracture-dislocations and mainly focuses on the radial component. Four types are recognised and are generally based on the principle that the direction in which the apex of the ulnar fracture points is the same ...

Banana fracture

A banana fracture refers to a complete, horizontally oriented pathological fracture seen in deformed bones affected by Paget disease. This term is often used to describe incremental fractures that occur in Paget disease as well, which represent a type of insufficiency fracture. The former of th...

Bankart lesion

Bankart lesions are injuries specifically at the anteroinferior aspect of the glenoid labral complex, and represent a common complication of anterior shoulder dislocation. They are frequently seen in association with a Hill-Sachs lesion. Terminology Strictly speaking, a "Bankart lesion" refer...

Barton fracture

Barton fractures are fractures of the distal radius. It is also sometimes termed the dorsal type Barton fracture to distinguish it from the volar type or reverse Barton fracture. Barton fractures extend through the dorsal aspect to the articular surface but not to the volar aspect. Therefore, i...

Base of skull fracture

Basilar fractures of the skull, also known as base of skull fractures, are a common form of skull fracture, particularly in the setting of severe traumatic head injury, and involve the base of the skull. They may occur in isolation or often in continuity with skull vault fractures or facial frac...

Battle sign (base of skull fracture)

Battle sign is an eponymous term given to mastoid ecchymosis (bruising of the scalp overlying the mastoid process) and is strongly suggestive of a base of skull fracture, most commonly a petrous temporal bone fracture. History and etymology Mr William Henry Battle (1855-1936) was an English s...

Benign post-traumatic pseudopneumoperitoneum

Benign post-traumatic pseudopneumoperitoneum is the presence of ectopic gas typically between the 5th-10th intercostal spaces after high-energy trauma in the absence of other causes of pseudopneumoperitoneum such as pneumomediastinum 9. Epidemiology Occurs with an incidence of 5% post-trauma...

Bennett fracture

A Bennett fracture is a fracture of the base of the thumb resulting from forced abduction of the first metacarpal. It is defined as an intra-articular two-part fracture of the base of the first metacarpal bone. Radiographic features Plain radiograph two piece fracture of the base of the thumb...

Biffl scale for blunt cerebrovascular injury

The Biffl scale or grade illustrates the spectrum of blunt cerebrovascular injury (BCVI) seen on angiography (both CTA and DSA). Some authors refer to the grading scale as the Denver scale, which is not to be confused with the Denver criteria, a series of clinical indications and risk factors fo...

Bilateral facet dislocation

A bilateral facet dislocation is an unstable flexion distraction type of dislocation of the cervical spine, often a result of buckling force. Occasionally, the bilateral facet dislocation has been named a 'doubly-locked' vertebral injury giving the impression of stability. However, due to comple...

Bipartite scaphoid

A bipartite scaphoid is a rare example of a divided carpus. There is controversy whether this condition is congenital (i.e. normal variant) or post-traumatic. Bipartite scaphoids may be unilateral or bilateral. Diagnostic criteria have been proposed 3: no history of traumatic injury normal ap...

Birth fracture of the clavicle

Birth fractures of the clavicle occur in 0.5-1% of vaginal deliveries and are the most frequent birth-related fracture. They are most commonly seen following normal, uncomplicated births but there is recognised increased incidence with high birth weight babies, forceps delivery and shoulder dyst...

Birth trauma

Birth trauma relates to those conditions caused by both physical/mechanical and hypoxic injuries. Epidemiology Birth trauma occurs in ~5 per 1000 births 2. Risk factors asphyxia breech presentation shoulder dystocia instrument delivery macrosomia obstructed labour Pathology Aetiology ...

Blast injury

Blast injuries are injuries sustained due to the energy released during a rapid chemical or nuclear reaction or the escape of gas under high pressure. They can affect numerous organ systems. Epidemiology Blast injuries may occur in any number of situations including in combat, in industrial ac...

Blunt cerebrovascular injury

Blunt cerebrovascular injury (BCVI) is an uncommon but serious consequence of blunt trauma to the head and neck. Epidemiology It is often part of multi-trauma with a significant series of blunt trauma CTA reporting an incidence of approximately 1% 3. A large systematic review and meta-analysis...

Blunt traumatic neck injury

Blunt traumatic neck injury is uncommon because it is usually protected by the head, shoulders, and chest. This term is generally used to refer to injuries of the neck besides to cervical spine injuries, which are common. Pathology Blunt injury to the neck is most commonly from motor vehicle ...

Bone contusion

Bone (marrow) contusion (also known as bone bruising) is an osseous injury which may result from compression of bone structures. Pathology Bone contusions represent trabecular microfractures with haemorrhage and without a discrete fracture line or contour abnormality 4. They typically appear w...

Bosworth fracture

The term Bosworth fracture is no longer used. However, it was classically used to refer to a fracture-dislocation of the ankle in which there was fracture of the fibula and posterior dislocation of the talus. History and etymology Named after David M Bosworth (1897-1979), orthopaedic surgeon f...

Bowel and mesenteric trauma

Bowel and mesenteric trauma can result from blunt force, penetrating and iatrogenic trauma. Epidemiology The bowel and mesentery are injured in ~2.5% (range 0.3-5%) of blunt force abdominal trauma 1,3,5,8. However not surprisingly, bowel and mesenteric injuries are more frequent after penetrat...

Bowing fracture

Bowing fractures are incomplete fractures of tubular long bones in paediatric patients (especially the radius and ulna) that often require no intervention and heal with remodelling. Epidemiology Bowing fractures are almost exclusively found in children. However, there have been several case re...

Boxer fracture

Boxer fractures are minimally comminuted, transverse fractures of the 5th metacarpal and are the most common type of metacarpal fracture. They typically occur (as the name suggests) when punching and are a common sight in all emergency departments on Friday nights. They should not be confused w...

Brachial plexus injuries

Brachial plexus injuries are a spectrum of upper limb neurological deficits secondary to partial or complete injury to the brachial plexus, which provides the nerve supply of upper limb muscles. Clinical presentation Trauma, usually by motor vehicle accidents, involves severe traction on the ...

Broken heart sign

The broken heart sign describes the appearances of incudomalleolar disarticulation. This sign is identified on CT in the coronal plane, being formed by the widening of the incudomalleolar joint and lateral displacement of the short process of the incus relative to the head of the malleus 1,2.

Bronchial fracture (mnemonic)

A mnemonic for the features of a bronchial fracture on a chest radiograph is: PPP Mnemonic P: progressive or P: persistent pneumothorax or P: pneumomediastinum

Bucket handle fracture (disambiguation)

Bucket handle fracture may refer to: bucket handle fracture - non-accidental injury bucket handle fracture of the pelvis

Burst fracture

Burst fractures are a type of compression fracture related to high-energy axial loading spinal trauma that results in disruption of the posterior vertebral body cortex with retropulsion into the spinal canal. Clinical presentation They usually present as back pain and or lower limbs neurologi...

Butterfly fragment (fracture)

Butterfly fragments are large, triangular fracture fragments seen commonly in comminuted long bone fractures. The term is commonly used in orthopaedic surgery, and results from two oblique fracture lines meeting to create a large triangular or wedge-shaped fragment located between the proximal a...

Calcaneal fracture

Calcaneal fractures are the most common tarsal fracture, and can occur in a variety of settings. Epidemiology The calcaneus is the most commonly fractured tarsal bone and accounts for about 2% of all fractures 2 and ~60% of all tarsal fractures 3. Pathology Calcaneal fractures can be divided...

Calcaneal tuberosity avulsion fracture

Avulsion fractures of the calcaneal tuberosity are rare, accounting for only 3% of all calcaneal fractures. Pathology There are three mechanisms of action 4: fall during plantarflexion ankle hyperextension feet fixed on the ground with sudden muscular contraction Associations There is a s...

Canadian CT head rule

The Canadian CT head rule (CCTHR) is a validated clinical decision rule to determine the need for CT head in adult emergency department patients with minor head injuries. Inclusion criteria Patient has suffered minor head trauma with resultant: loss of consciousness GCS 13-15 confusion amn...

Caroticocavernous fistula

Caroticocavernous fistulas (CCF) represent abnormal communication between the carotid circulation and the cavernous sinus. They can be classified as direct or indirect which are separate conditions with different aetiologies. Epidemiology Direct CCFs are often secondary to trauma, and as suc...

Carpometacarpal joint dislocation

Carpometacarpal joint dislocations are uncommon dislocations of the hand. Epidemiology There is a strong younger male predominance. These injuries are more common in the dominant hand. Clinical presentation Typical mechanism: punching (most common) fall The patient may present with ulnar ...

Central cord syndrome

Central cord syndrome is the most common type of incomplete spinal cord syndrome, usually the result of trauma, accounting for ~10% of all spinal cord injuries. As the name implies, this syndrome is the result of a damage to the central portion spinal cord and in the setting of trauma most commo...

Cerclage wire

Cerclage wire refers to a type of orthopaedic fixation/stabilisation wire placed to approximate fractured bone fragments. Types full - 360° circumferential wire used in diaphysis segments of long bones hemicerclage - wire is placed through one of the main fractured bone fragments, as used in ...

Cerebral haemorrhagic contusion

Cerebral haemorrhagic contusions are a type of intracerebral haemorrhage and are common in the setting of significant head injury. They are usually characterised on CT as hyperdense foci in the frontal lobes adjacent to the floor of the anterior cranial fossa and in the temporal poles. Epidemio...

Cerebral herniation

Cerebral herniation, also referred to as acquired intracranial herniation, refers to shift of cerebral tissue from its normal location, into an adjacent space as a result of mass effect. Pathology There are a number of different patterns of cerebral herniation which describe the type of herni...

Cerebral ring enhancing lesions (mnemonic)

Convenient mnemonics for the causes of cerebral ring enhancing lesions are: MAGIC DR or DR MAGIC DR MAGIC L MAGICAL DR Mnemonics MAGIC DR or DR MAGIC M: metastasis A: abscess G: glioblastoma I: infarct (subacute phase) C: contusion D: demyelinating disease R: radiation necrosis or re...

Cervical spine floating pillar

A floating pillar, also referred as pedicolaminar fracture-separation injury, is characterised by fractures through the pedicle and lamina of a cervical spine vertebrae creating a free-floating articular pillar fragment. It is an unstable cervical spine fracture that results from hyperflexion–la...

Cervical spine fracture classification systems

There are several cervical spine fracture classification systems: Anderson and D'Alonzo classification (odontoid fracture) Roy-Camille classification (odontoid fracture) Levine and Edwards classification (for traumatic injuries to axis) Allen and Ferguson classification (subaxial spine injur...

Cervical spine fractures

Cervical spine fractures can occur secondary to exaggerated flexion or extension, or because of direct trauma or axial loading. Pathology The cervical spine is susceptible to injury because it is highly mobile with relatively small vertebral bodies and supports the head which is both heavy and...

Cervical spine injury

Cervical spine injuries can involve the cervical vertebral column, intervertebral discs and cervical spine ligaments, and/or cervical spinal cord. The cervical spine accounts for ~50% of all spinal injuries. Epidemiology 5-10% of patients with blunt trauma have a cervical spine injury 1. Pa...

CHALICE rule

The Children’s Head injury ALgorithm for prediction of Clinically Important Events (CHALICE) clinical decision rule was developed to predict clinically important brain injuries in children with head trauma. This rule identifies high-risk criteria and divides them into history, examination and me...

Chalk stick fracture

Chalk stick or carrot stick fractures are fractures of the fused spine, classically seen in ankylosing spondylitis. Terminology Some authors define the chalk stick fracture as a fracture through a Pagetoid long bone (see Paget disease). Pathology They usually occur through the disco-vertebra...

Chance fracture

Chance fractures, also referred to as seatbelt fractures, are flexion-distraction type injuries of the spine that extend to involve all three spinal columns. These are unstable injuries and have a high association with intra-abdominal injuries. Pathology Mechanism They tend to occur from a fl...

Chauffeur fracture

Chauffeur fractures (also known as Hutchinson fractures or backfire fractures) are intra-articular fractures of the radial styloid process. The radial styloid is within the fracture fragment, although the fragment can vary markedly in size. Pathology Mechanism These injuries are sustained eit...

Chopart fracture

Chopart fracture is a fracture/dislocation of the mid-tarsal joint (Chopart joint) of the foot, i.e. talonavicular and calcaneocuboid joints which separate the hindfoot from the midfoot. The commonly fractured bones are the calcaneus, cuboid and navicular. The foot is usually dislocated mediall...

Classification of gamekeeper thumb

This classification of gamekeeper's thumb (also known as skier's thumb) was proposed by Hintermann et al. 1 in 1993 and is based on whether a fracture is present and whether the injury is stable: type I fracture present, which is non-displaced and stable in flexion typically treated with a sp...

Classification of sacral fractures

There are several classification systems for sacral fractures, but the most commonly employed are the Denis classification and subclassification systems, and the Isler classification system. These classification systems are important to understand as proper classification can impact management. ...

Clavicular fracture

Clavicular fractures are common and account for 2.6-10% of all fractures 2-3. They usually require minimal treatment, which relies on analgesia and a collar-and-cuff. However, in some cases open reduction and internal fixation is required. Mechanism Fractures can occur at any part of the clavi...

Clay-shoveler fracture

Clay-shoveler fractures are fractures of the spinous process of a lower cervical vertebra. Clinical presentation Often these injuries are unrecognised at the time and only found incidentally years later when the cervical spine is imaged for other reasons. Acutely they tend to be associated wi...

Colles fracture

Colles fractures are very common extra-articular fractures of the distal radius that occur as the result of a fall onto an outstretched hand. They consist of a fracture of the distal radial metaphyseal region with dorsal angulation and impaction, but without the involvement of the articular surf...

Comminuted fracture

Comminuted fractures are fractures where more than 2 bone components are created. The problem with the term is that it includes a very heterogeneous group of fractures from a 3 part humeral head fracture to a multi-part fracture of the femur following a high-energy road traffic accident.

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