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Condylar fracture processes with one body and jaw - from the opposite side
05-09-2009
This combination occurs quite often. This results in three fragments: condylar processus on the one hand, the body of the mandible and the branch - on the other, and the average - a branch of a broken jaw condylar process and the body of the mandible.
Clinically prevalent signs of a fracture of the body of the jaw, and therefore its definition is not difficult. It therefore can not be promptly diagnosed condylar fracture of the appendix from the opposite side. It is connected with the fact that the violation of bite, so typical of the condylar fracture of the process, is not observed. Complaints not differ from normal at the turn of the mandible. There could be swelling of soft tissue and hematoma, respectively, the body of the mandible from the fracture, as well as a small swelling of the trestle in front of the ear. In the projection of the hematoma can determine bone protrusion at the base of the body palpation of the jaw and a painful point (less bone protrusion) trestle in front of the ear on the opposite side. Symptom burden in these areas is positive. On palpation anterior wall of external auditory canal is determined by the asynchronous motion of the heads of the lower jaw (reducing the amplitude of displacement on the side of the fracture). When opening the mouth, the middle line shifted towards the broken condylar spike. Teeth are small fragments (side) on the side of a fracture of the body of the mandible with teeth interlock antagonists (touch papulose). At a large fragments (average) contact only molars, the remaining teeth are open. However, when closing the mouth tight contact with the molars and premolars antagonists occurs earlier on the side of a broken condylar sprouts due to shortening of the branches of the jaw, ie reduce the height of the articular. When bilateral condylar fracture processes combined with a fracture of the body of the mandible prevalent clinical signs of damage to the condylar processes. However, the displacement of bone fragments may be more blatant, and malocclusion more pronounced. X-ray study confirms the clinical assumption.
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Articles for theme "fracture of the jaw":
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05-09-2009
Bilateral fracture of the mandible fracture means two different halves of it. Double fracture of the mandible - were two fractures on one half of the jaw. Multiple fracture of the mandible - a combination of bilateral and double its fractures.
Bilateral condylar fracture of the appendix occurs most frequently when struck on the chin from front to back. In addition to the complaints listed above, with a bilateral fracture patients report pain trestle in front of the ear on both sides. They can not bite the food front teeth.
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05-09-2009
Damage condylar sprouts in second place in the structure of mandibular fractures. This is due to the fact that when struck on the chin from front to back is broken neck mandibular condylar sprouts, and in case of application of force to the lateral parts of the body, the branches or the chin to the most vulnerable is the base condylar sprouts, along with the angle of the mandible. The mechanism of fracture and in fact and in another case - the bend. Should be recalled that near the base of the appendix condylar cross-sectional area of bone in the lateral (naruzhnovnutrennem) direction is much less than in the anteroposterior.
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05-09-2009
There are actually branches of fractures of the mandible, coronoid and condylar processes it. Fracture of the actual branches of the mandible in the horizontal direction is more often localized in the middle section and it is caused by compression. Small otlomok under the influence of temporal and to a lesser degree lateral muscles pterygium rotary motion in the joint moves upward inside and a few front. However, when expressed by a slant fracture cracks in the direction upwards and inwards (the turn of the outer compact disc is much lower than on the inside), the displacement of small fragments medially may not occur as a result of holding it on the big fragments (it rests against the inner compact disc of large fragments).
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05-09-2009
If the fracture line passes between the central incisors vertically down to the bottom of the chin department formed almost the same size fragments, which is attached to the same number of muscles. These fragments are in a state of dynamic equilibrium, the displacement of crude is not observed. However, due to the dominance of power over the chewing muscles medial wing-in the presence of a movable fulcrum of each fragments (articular head) there is a slight shift in the bottom of the body of the mandible outwards.
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05-09-2009
Mandibular fractures most often occur in the region of its angle. This fracture is more often direct, sometimes - as reflected, ie at some distance from the place of the applied force. Ignoring this fact is often the cause of diagnostic errors, especially at the turn without bias. For the displacement of fragments of considerable importance is the localization of the fracture gap. If it passes anterior to the chewing muscles and the medial pterygium, or more precisely - within only a quarter of the front of their plane, the displacement of fragments more often than significant.
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