The fracture, described in a few clicks
The “Pathology & lesions” panel describes the fracture: its location on a clavicle diagram, the fracture pattern, displacement and shortening. The AO/OTA and Robinson classifications are displayed live.
Seven patterns, grouped per AO/OTA
Simple (transverse, oblique, spiral), wedge (intact or fragmentary wedge), multifragmentary (segmental, comminuted). The cut surface shows cortex and cancellous bone; a red outline makes an undisplaced fracture line visible.



Displacement, in shaft widths
Two sliders: displacement from 0 to 150% of the shaft width, shortening from 0 to 30 mm. The medial fragment rises and moves back, the shoulder drops and moves forward; the Robinson classification changes from 2A to 2B as soon as contact is lost.



The lateral quarter, per Neer as modified by Craig
One click on the diagram changes the location. Five types, placed by the insertions of the coracoclavicular ligaments: lateral to them (I), medial (IIA), between a torn conoid and the trapezoid (IIB), intra-articular (III), comminuted with an inferior fragment that keeps the ligaments (V).



Progression to nonunion
For any fracture, in the shaft as in the lateral quarter, in two stages: the bone ends erode and a gap opens between the fragments, then the ends seal over — two separate bones.























