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| 2. |
- Alinasab, Babak, et al.
(författare)
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The Supratarsal Approach for Correction of Anterior Frontal Bone Fractures
- 2018
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Ingår i: The Journal of Craniofacial Surgery. - Philadelphia, PA : Lippincott Williams & Wilkins. - 1049-2275 .- 1536-3732. ; 29:7, s. 1906-1909
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Tidskriftsartikel (refereegranskat)abstract
- Background: To approach isolated anterior frontal bone fracture, coronal incision is the common surgical access of choice. This approach has complications such as aesthetically undesirable scarring and alopecia along the incision line. An alternative approach to these fractures is through a supratarsal incision. The aim of the present study was to correct the frontal bone fracture, through supratarsal approach.Methods: Six consecutive patients with frontal bone fracture were operated through supratarsal incision and evaluated regarding: patient cosmetic satisfaction, forehead contour, scarring, sensibility and motility in forehead and upper eyelids.Results: Seven months (6–12) postoperatively, all the patients had normal mobility in the forehead and the upper eyelids and 17% (n = 1) had hypoesthesia of superior orbital nerve. The forehead contour was excellent in all patients. About 83% (n = 5) of the patients were very satisfied and 17% (n = 1) were satisfied with the surgical result.Conclusion: Correction of anterior frontal bone fracture through a supratarsal approach appears to be safe and offers a sufficient exposure to the frontal bone fracture correction with excellent contouring results and no noticeable scarring.
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| 4. |
- Ashammakhi, Nureddin, et al.
(författare)
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Modelling Brain in a Chip
- 2023
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Ingår i: The Journal of Craniofacial Surgery. - : Ovid Technologies (Wolters Kluwer Health). - 1049-2275 .- 1536-3732. ; 34:3, s. 845-847
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)
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| 5. |
- Bevilacqua, Ruggero, et al.
(författare)
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Spring-Assisted Surgery in the Treatment of Complex Craniosynostosis
- 2018
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Ingår i: Journal of Craniofacial Surgery. - 1049-2275. ; 29:4, s. 920-924
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Tidskriftsartikel (refereegranskat)abstract
- Multisutural nonsyndromic craniosynostosis is a rare group of malformations, whose frequency has been reported between 3% and 7% of all craniosynostosis. The clinical diagnosis can be difficult and computed tomography is usually required. Surgical treatment is challenging and staged procedures are performed in up to 80% of patients. The aim of the present study was to determine the reoperation rate and to evaluate the surgical outcomes by measuring intracranial volume (ICV) preoperatively and at follow-up, and comparing it to a control group. Perioperative variables and reoperation rate were recorded. Fifty-one patients presented with a complex pattern of synostosis without a recognizable syndrome (5% of cases of total patients evaluated). Fifteen patients have been treated with spring-assisted surgery, either alone or in combination with a foreheadplasty. The mean follow-up was 6.2 years. The mean preoperative ICV of the patients was smaller, but not significantly, than in the normal population (P = 0.13). Postoperatively, the mean ICV was similar to that of the control group at 1 year (P = 0.92), while at 3 years it was appreciably smaller, although not significantly different (P = 0.06). Five patients (33%) went through a secondary skull expansion for either raised intracranial pressure or cosmetic reasons. Spring-assisted surgery seems to temporarily expand ICV in children with complex synostosis and lower the reoperation rate, thus reducing the need for a second procedure. A longer follow-up would be necessary to further investigate the effects of springs over time.
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| 6. |
- Consolo, Ugo, et al.
(författare)
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Histologic and Biomechanical Evaluation of the Effects of Implant Insertion Torque on Peri-Implant Bone Healing
- 2013
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Ingår i: The Journal of craniofacial surgery (Print). - : Lippincott Williams & Wilkins. - 1049-2275 .- 1536-3732. ; 24:3, s. 860-865
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Tidskriftsartikel (refereegranskat)abstract
- The aim of this study was to evaluate histologically and biomechanically the peri-implant bone healing around implants placed with high torque after a follow-up of 8 and 12 weeks. A total of 12 implants were placed in the lower edge of the mandible of 2 sheep. In each sheep, 3 implants were placed with a low torque (<25 N center dot cm, LT group) as a control, and 3 implants were placed with a high insertion torque (maximum torque, HT group). The sheep were killed after 8 and 12 weeks of healing, and the implants were examined for removal torque, resonance frequency analysis, and histologic analysis. The mean insertion torque in the LT group was 24 N center dot cm, whereas it was 105.6 N center dot cm in HT. All the implants osseointegrated and histologic analysis showed similar aspects of the peri-implant bone tissue for both groups and both healing times. Mean removal torque values for LT implants were 159.5 and 131.5 N center dot cm after 8 and 12 weeks, respectively, whereas those for the HT were 140 and 120 N center dot cm at 8 and 12 weeks, respectively. Implant stability quotient values were 26.6 and 76 for the LT group and 74 and 76 for the HT group at 8 and 12 weeks, respectively. It could be concluded that high implant insertion torque does not induce adverse reaction in cortical bone and does not lead to implant failure.
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| 7. |
- Davis, Charles, et al.
(författare)
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"Spectaclesplasty" periorbital rotation advancement in Crouzon syndrome.
- 2008
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Ingår i: The Journal of craniofacial surgery. - 1049-2275. ; 19:3, s. 652-8
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Tidskriftsartikel (refereegranskat)abstract
- Facial deformity in Crouzon syndrome is characterized by exophthalmos, exorbitism, mild hypertelorism, and maxillary hypoplasia with a Class III occlusion. The G?teborg craniofacial unit corrects this deformity in selected patients by the 2-stage procedure of "spectaclesplasty" followed by a Le Fort I maxillary osteotomy at skeletal maturity. "Spectacles" is a reference to the bilateral circumferential periorbital bony skeleton, and a spectaclesplasty is a differential rotation and advancement of this complex. Spectaclesplasty has been integrated as part of our protocol in managing Crouzon syndrome from birth to maturity. All patients who have undergone spectaclesplasty were retrospectively reviewed. A composite scoring system analyzing periorbital anatomy and aesthetics was used to compare the preoperative and most recent postoperative photographs. Complications and the need for ancillary procedures were recorded. Twenty-one patients have undergone spectaclesplasty since this technique was introduced in 1984. Mean follow-up time is 5 years 10 months. Compared with their preoperative aesthetics, the improvement was rated as excellent for 8 patients (38%), very good for 7 patients (33%), good for 5 patients (24%), and minimal for 1 patient (5%). No patient was rated as having no improvement. Mean perioperative blood loss was 111% of estimated red cell mass. Mean operative time was 6.4 hours. The mean duration of stay in the intensive care unit was 28 hours, and the mean hospital stay was 11 days. There were few complications and no incidences of mortality. Spectaclesplasty yields high-quality aesthetic results in most cases. It is our impression that spectaclesplasty en bloc rotation advancement of the periorbital bony skeleton can be safely performed before skeletal maturity of the lower face. Correction of the bony periorbital anatomy in early adolescence is important in alleviating psychosocial distress in this age group. In our hands, spectaclesplasty produces a more normal anatomic position of the periorbital soft tissues facilitating both function and aesthetics.
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| 8. |
- Davis, Charles, et al.
(författare)
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Spring-assisted remodeling for ventricular shunt-induced cranial deformity.
- 2008
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Ingår i: The Journal of craniofacial surgery. - 1049-2275. ; 19:3, s. 588-92
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Tidskriftsartikel (refereegranskat)abstract
- Ventricular shunt overdrainage may cause cranial vault collapse, deformation, and secondary craniosynostosis. There is a paucity of information in the literature about this condition or successful low morbidity methods to reshape the cranial vault. Spring-assisted cranioplasty was developed in the G?thenborg Craniofacial Unit and is part of our routine protocol for the treatment of selected patients with craniosynostosis. The same treatment principles were applied to skull deformity secondary to ventricular shunt-associated deformity. Four patients with scaphocephaly secondary to ventricular shunting were treated using expansile springs. Three patients had a secondary sagittal synostosis requiring osteotomy. A further patients' sagittal suture was still patent, and this was expanded without osteotomy. Near normalization of the cranial index and significant aesthetic improvement of the cranial vault were noted in all cases. The mean preoperative cranial index increased from 0.60 to 0.71 within 4 months after surgery. The limited dissection and short operative time enabled minimal morbidity and blood loss compared with that expected with traditional craniofacial reshaping techniques. Patients with ventricular shunt-associated cranial deformity often have associated medical problems. Cranial bone is often in short supply and its quality less than optimal. In this situation, spring-assisted surgery is straightforward and offers significant advantages over traditional craniofacial reshaping techniques.
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| 9. |
- Demirtas, Nihat, et al.
(författare)
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Recurrent cherubism in an adult patient
- 2015
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Ingår i: The Journal of craniofacial surgery (Print). - : Lippincott Williams & Wilkins. - 1049-2275 .- 1536-3732. ; 26:3, s. E225-E227
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Tidskriftsartikel (refereegranskat)abstract
- Cherubism is an uncommon, nonneoplastic, fibro-osseous disorder of the jaws in childhood and adolescence. It affects the jaw bones by deforming the cortical shell. Clinical features include progressive painless and mostly bilateral expansion of the mandible and/or maxilla. Because fibrous connective tissue replaces osseous tissue, radiographic features generally include expansile osteolytic lesions and a ground-glass appearance. Several treatment protocols for cherubism have been recommended in the literature; however, despite surgical curettage treatment, recurrences may occur. Our aim was to emphasize the high recurrence rate of cherubic lesions. In this article, we present cherubism in a young girl that relapsed after 5 surgical operations before her appearance to our clinic.
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| 10. |
- Düppe, Katarina, et al.
(författare)
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Evaluation of Facial Anthropometry Using Three-Dimensional Photogrammetry and Direct Measuring Techniques
- 2018
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Ingår i: Journal of Craniofacial Surgery. - 1049-2275. ; 29:5, s. 1245-1251
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Tidskriftsartikel (refereegranskat)abstract
- In this study, 14 standard facial distances on 10 adult volunteers were measured directly with a caliper and indirectly on two-dimensional images using the 3dMDtrio system. Two raters performed the measurements with at least 1 week between rating sessions. The intra- and inter-rater reliabilities and agreement of the measurements were calculated using intra-class correlation coefficient (ICC), mean absolute difference (MAD), and Bland-Altman plots with limits of agreement (LOA). The 2 raters had an average discrepancy (MAD) of 1.6mm when their digital measurements were compared to their direct measurements. The reliability of the digital and direct methods varied greatly depending on which of the 14 anthropometric distances that was being assessed. Only 6 digitally and 5 directly measured anthropometric distances showed both an ICC >0.75 and a MAD <1mm, in the intra-rater as well as the inter-rater measurements. The Bland-Altman plots and LOA displayed the same pattern. In summary, the digital and direct methods were generally compatible in terms of reliability and agreement. However, the reliability and agreement between the 14 anthropometric measurements varied considerably, indicating that poor landmark identification is the main limitation to both modern and traditional measuring techniques in the face. Consequently, some anthropometric landmarks warrant further definition or prior anthropometric training by the evaluators. The authors also recommend that the MADs and LOAs provided in this report are put into relation to the facial distance that is being evaluated and its clinical context.
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