Mandibular asymmetry after lesion of the trigeminal motor nucleus: a case report.
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Adult↗
Biomedical subjects
Michael Krimmel
Publications and source records attributed to Michael Krimmel.
Digital surface photogrammetry for anthropometric analysis of the cleft infant face.
OBJECTIVE: To analyze the three-dimensional morphology of the cleft infant face with digital surface photogrammetry. DESIGN: Fifty plaster casts of unoperated infants with cleft lip and palate were imaged three-dimensionally with digital surface photogrammetry. Twenty-one standard craniofacial measurements were taken. The plaster casts were divided into 4 groups with unilateral, bilateral, complete, and incomplete clefts of the lip and palate. The measurements were compared with standard values for healthy infants. RESULTS: Significant differences (p < .0025) were found for the alar base width (33% to 55%), the alar base root width (59% to 103%), the width of the nose (7% to 25%), the length of the alar wing (18% to 25%), and the intercanthal (6% to 17%) and biocular (4% to 12%) width, depending on the cleft type. The vertical dimensions of the nose and the upper lip did not differ significantly from the controls. CONCLUSION: This study describes preliminary data on the cleft infant facial deformity. The obtained results were mainly in agreement with data in the limited literature. Three-dimensional photogrammetry has proven to be reliable and can be applied more readily to potentially uncooperative patients.
Cephalometry↗
Cleft palate fistula closure with a mucosal prelaminated lateral upper arm flap.
BACKGROUND: Recurrent cleft palate fistula is a challenge for maxillofacial surgeons. In severe cases, microvascular tissue transfer is necessary to treat these patients successfully. METHODS: A 23-year-old man with cleft lip and palate, previously treated elsewhere, presented with a 2-cm defect in the posterior hard palate. A tongue flap had already been performed. It was decided to close the persistent fistula with a lateral upper-arm flap. In a first-step operation, a free graft of buccal mucosa was fixed to the lateral upper arm subcutaneously and covered with an alloplastic sheet. After 11 weeks, the prelaminated flap was harvested and transferred to the palate. RESULTS: Integration of the buccal mucosa to the upper arm was uneventful. On harvesting the flap, we found a smooth, thin, and continuous fasciomucosal flap with a mucosa surface of 4 x 4 cm. Healing of the microvascular flap in its recipient site was regular. The fistula was closed successfully. CONCLUSIONS: To the authors' knowledge, this is the first report of a lateral upper-arm flap prelaminated with autologous mucosa. By prelamination, it is possible to circumvent the disadvantage of extraoral skin within the oral cavity and to cover mucosal defects with mucosa, especially in elective procedures, such as cleft cases.
Adult↗
Longitudinal cephalometric analysis after maxillary distraction osteogenesis.
The aim of this study was to analyze the long-term dentoskeletal changes in patients who received distraction osteogenesis of the maxilla. Seventeen patients aged 12 to 31 years underwent rigid external distraction osteogenesis for treatment of maxillary hypoplasia. Cephalograms were evaluated retrospectively regarding linear and angular measurements. Follow-up times ranged from 1 to 5 years. In two patients, there was no consolidation of the Le Fort I segment to the midface. After the 0- to 12-month period, the maxilla had a stable position in all patients. Nevertheless, there was further decrease of SNA and ANB and an increase of the facial concavity thereafter. Ongoing growth of the facial skeleton must be considered when distraction osteogenesis is chosen for the advancement of the maxilla in adolescents.
Adolescent↗
Surgical correction of craniosynostosis in malignant osteopetrosis.
In osteopetrosis, bone healing is complicated by progressive sclerosis. A 2-year-old blind boy with malignant osteopetrosis developed increased intracranial pressure secondary to craniosynostosis. Osteopetrosis had already been treated with bone marrow transplantation (BMT), and bone remodeling seemed to be restored. A craniotomy was performed. The postoperative course and bone healing were uneventful. After successful BMT, craniofacial procedures seem to be possible without a high risk for osteomyelitis.
Bone Marrow Transplantation↗
Central resorption in an iliac crest transplant with microvascular anastomosis--report of 2 cases.
INTRODUCTION: The microvascular iliac crest flap is preferred for repair of segmental mandibular defects. Its viability and constant size are regarded as a great advantage for oral rehabilitation. PATIENTS: Two patients with oral cancer and recurrent keratocyst underwent mandibular reconstruction with an iliac crest transplant. Wound healing was uneventful. RESULTS: Several years after reconstruction we noticed complete absence of cancellous bone in the transplants. The cortical aspect consisted of vital bone. CONCLUSION: Secondary to changes in the blood supply after tissue transfer, microvascular bone transplants may develop complete medullary resorption. Substitution of this central bone is variable and may not happen at all.
Anastomosis, Surgical↗