【yewseenhang】評論

(A) With rigid fixation techniques, patients can be allowed to heal without undergoing MMF or at least a decreased time of MMF. This alone may be an important factor in the decision to perform an open reduction.中文補充：以開放性骨復位術治療，可以縮短甚至不用使用顎間固定術。(C) In some cases, it is not necessary to achieve an ideal anatomic reduction of the fracture area. This is especially true of the condylar fracture. In this fracture, minimal or moderate displacement of the condylar segment generally results in adequate postoperative function and occlusion (but only if a proper occlusal relationship was established during the period of healing of the fracture site). 正確(D) Indications for open reduction include continued displacement of the bony segments or an unfavorable fracture, as in an angle fracture (see Fig. 25.13) in which the pull of the masseter and medial pterygoid muscles can cause distraction of the proximal segment of the mandible.中文補充：錯綜複雜的骨折和unfavorable fracture都是開放性骨復位術的適應症。