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    N. Leprovost

    The temporalis muscle has been used for more than a century for facial reconstruction. But this flap cannot fill defects beyond the midline. Splitting the temporalis muscle in the plane of the tendon insertion allows lengthening the flap... more
    The temporalis muscle has been used for more than a century for facial reconstruction. But this flap cannot fill defects beyond the midline. Splitting the temporalis muscle in the plane of the tendon insertion allows lengthening the flap and crossing the midline. The scalp incision is followed by a subcutaneous dissection, taking care to spare hair follicles and superficial temporal vessels. Then the temporalis muscle is detached by a strictly subperiosteal dissection and deep temporal pedicles are dissected and ligated. The flap is split in the plane of the insertion tendon up to its distal end. This technique allows reconstructing cranio-facial defect beyond the midline with well-vascularized tissue.
    Sagittal split osteotomy of the mandible is the most frequently used method in orthognatic surgery. Osteosynthesis was performed with wires in the 1970s. The instability of fixation allowed condyle movements and there was no problem of... more
    Sagittal split osteotomy of the mandible is the most frequently used method in orthognatic surgery. Osteosynthesis was performed with wires in the 1970s. The instability of fixation allowed condyle movements and there was no problem of condylar positioning. The drawback of this technique was that it required a strict intermaxillary fixation for 6 weeks. Osteosynthesis evolved in the 1980s to a rigid and semi-rigid fixation, with no longer any need for an intermaxillary fixation. But accurately determining the condyle position in the fossa is essential when using a rigid fixation, because no spontaneous adaptation is possible. Moreover, an improper condyle positioning is known to increase short term skeletal relapse, inadequate corrections, and a high incidence of temporomandibular joint dysfunctions. Many solutions have been proposed to solve the problem of condylar positioning: manual positioning technique at osteosynthesis, and mechanical or computer assisted devices to control co...
    For more than a century, the temporalis muscle has been used for facial reconstructions. More recently, a split temporalis muscle flap elevated on the superficial temporal pedicle has been described, for which the resulting gain of length... more
    For more than a century, the temporalis muscle has been used for facial reconstructions. More recently, a split temporalis muscle flap elevated on the superficial temporal pedicle has been described, for which the resulting gain of length makes crossing of the midline possible, as well as reconstruction of substance losses exceeding the midline. Fourteen fresh cadaveric dissections were performed to study the different techniques for splitting the temporalis muscle. Dissections with catheterization and injection of radio-opaque contrasting agent in the external carotid artery were then performed to specify the vascularization of the flap split on the superficial temporal pedicle. The duplication of the superficial temporal pedicle grants greater length compared to that of the deep pedicles, 57 mm versus 40 (p = 0.036). The middle temporal artery is capable of ensuring the vascularization, and therefore the viability, of the split flap. From these results, we spoke about the limitations of this study and we have inferred the main indications.
    Horsley wax® is an efficient bone haemostatic agent commonly used in bone surgery. But it is non resorbable and surgeons should be aware of possible complications, which can appear many years later. We report three cases of foreign body... more
    Horsley wax® is an efficient bone haemostatic agent commonly used in bone surgery. But it is non resorbable and surgeons should be aware of possible complications, which can appear many years later. We report three cases of foreign body granulomas due to bone wax. A 14-years-old female patient with an Apert syndrome underwent Le Fort III osteotomy and distraction osteogenesis; 3 years later, an inflammatory granuloma appeared in the temporal area. A 23-years-old female patient, traffic accident casualty, complained about pain in the hip 1 year after undergoing cervical spine surgery with iliac bone graft. A 35-years-old female patient underwent rhinoplasty with anterior nasal aperture surgery. She presented with an inflammatory reaction requiring several subsequent surgeries. Using Horsley wax® must be performed according to recommendations so as to prevent inflammatory or infectious complications, and to allow good bone healing. Surgeons must mention its use in the surgical report to avoid a delayed diagnosis in case of complications. There are alternatives to bone wax but they are less effective.