Pauwels' classification divides femoral neck fractures into three grades according to the degrees of the inclination of the fracture line, so called Pauwels' angle. The distinction between grade II and III is often misinterpreted. Moreover, as originally pointed by Pauwels, the distinction between grade I and II should be also based on the presence of a shearing force, which can be neutralized by impaction. Therefore, some fractures with more vertical fracture line (>30 degrees) may still be considered grade I.
Garden classification is the most commonly used classification system for femoral neck fractures. It was devised in 1961 by a British orthopaedic surgeon, who divided them into four stages according to displacement of fragments. It is considered superior to Pauwels classification.
Stage | Description |
---|---|
Garden I | Incomplete fracture - usually impacted valgus fracture |
Garden II | Complete fracture - undisplaced |
Garden III |
Lauge-Hansen classification of ankle fractures is based on the mechanism of trauma. It describes position of the foot (supination or pronation) and the direction of the applied force (abduction, adduction, external rotation) at the time of the injury. Therefore, it uses two word description of its types. The five main groups can be subdivided into stages according to the degree of severity.
Type | Abbrev. | Weber equivalent |
---|---|---|
Supination-Adduction | SA | Weber A |
Danis-Weber classification, commony abbreviated as Weber classification of ankle fractures, divides distal fibular factures into three types according to the relation of the fracture line to the distal tibiofibular syndesmosis.
Type | Description |
---|---|
Weber A | below the tibiofibular syndesmosis |
Weber B | at the level of the tibiofibular syndesmosis |
Weber C |
The Sanders classification is based on CT evaluation of calcaneus in coronal plane. The classification was published in 1992 and it takes into account location and number of fracture lines. The image is evaluated in coronal plane where it shows the posterior articular facet in its widest (latero-lateral) profile, where the location of primary fracture line with relation to the posterior articular facet is determined (intra-articular fracture).
Type | Description |
---|---|
Type I |
Pipkin classification system divides fractures of the femoral head into four basic types according to relation of fracture line to the fovea capitis femoris and associated injury of the femoral neck or the acetabulum. It was first published in 1957.
Type | Description |
---|---|
Type I | fracture line inferior to the fovea capitis femoris |
Type II | fracture line superior to the fovea capitis femoris |
Type III |
Ideberg classification of glenoid fractures has five basic types. It is based on evaluation of
338 glenoid fractures and was published in 1995.
Type | Description |
---|---|
Type I | anterior glenoid rim fracture: avulsion fracture of the anterior glenoid rim IA: fragment size <=5mm IB: fragment size >5mm measured on the film |
Type II |
Milch classification system divides simple fractures of the lateral condyle into two basic types.
Type | Description |
---|---|
Milch type 1 | fracture line travels from the lateral metaphysis of the distal humerus and enters the trochleocapitellar groove |
Milch type 2 | fracture line travels from the lateral metaphysis of the distal humerus and enters the trochlea |
Gartland classification is used for classification of supracondylar fractures that are common in children. It divides them into three types according to displacement of fragments.
Type | Description |
---|---|
Type 1 | Undisplaced of minimally displaced fracture |
Type 2 | Displaced distal fragment with dorsal angulation and intact posterior cortex |
Type 3 | Complete posterior displacement with no cortical contact |
Müller classification of distal humeral fracture is part of the AO scheme. This region is marked 13, so each type has this prefix, e.g. 13-A1.
Type | Description |
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Type A | Extraarticular fractures:
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Type B | Partial articular fractures:
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