Pediatric Glial Heterotopia in the Medial Canthus

Kim, Soung Min,Amponsah, Emmanuel Kofi,Eo, Mi Young,Cho, Yun Ju,Lee, Suk Keun B.C. Decker Inc 2017 The Journal of craniofacial surgery Vol.28 No.8

<P>The purpose of this report is to demonstrate the first patient with pediatric glial heterotopic tissue in the medial canthus and to report the clinical importance of its immunohistochemical findings.</P>

Cutaneous Distribution of Zygomaticofacial Nerve

Hwang, Kun,Jin, Sheng,Park, Jun Ho,Chung, In Hyuk B.C. Decker Inc 2007 The Journal of craniofacial surgery Vol.18 No.3

The aim of this study is to elucidate the cutaneous distribution of the zygomaticofacial nerve (ZFN). Twenty hemifaces of 10 adult Korean cadavers were dissected. ZFN-innervated limits were rectangular and each side was 18.8 ± 4 mm and 15.8 ± 3.4 mm. The center of the rectangle was located laterally at 17.3 ± 5.5 mm from the lateral canthus and then inferiorly at 18.1 ± 3.1 mm. The cutaneous area innervated by the ZFN was rectangular shaped having a horizontal side that was 9.3 ± 4% to 27.3 ± 7.5%of the line from the lateral canthus to the root of helix and a vertical side that was 13.9 ± 5.8% to 35.7 ± 5.4% of the line from the lateral canthus to the oral commissure level. Knowledge of ZFN innervation is available with an intraoral approach in maloplasty or midface lift.

Immunohistochemical Study of Differences Between the Muscle Fiber Types in the Pars Peripheralis and Marginalis

Hwang, Kun,Kim, Dae Joong,Hwang, Se Ho B.C. Decker Inc 2007 The Journal of craniofacial surgery Vol.18 No.3

The aim of this study was to evaluate the immunohistochemical differences between the muscular fiber types in the pars peripheralis and pars marginalis of human orbicularis oris muscle. Five upper lips of fresh human adult cadavers were used. Full thickness of the upper lip, 5 mm in width, was harvested vertically at a peak point of cupid's bow. Troponin I-SS and Troponin I-FS antibodies were used to determinate the slow and fast skeletal muscle fibers. The pars peripheralis is composed of slow fibers (22%) and fast fibers (73%). The pars marginalis is composed of slow fibers (30%) and fast fibers (66%). We assume that the pars peripheralis and pars marginalis should be repaired sortably because the muscle reaction and endurance are not the same.

Location of the Zygomaticofacial Foramen Related to Malar Reduction

Hwang, Se Ho,Jin, Sheng,Hwang, Kun B.C. Decker Inc 2007 The Journal of craniofacial surgery Vol.18 No.4

The aim of this study was to elucidate zygomaticofacial foramen (ZFF) relating to malar reduction surgery. Fifty-five dry skulls of adult Koreans were studied. A total of 100 (90.9%) ZFF were observed in 110 skulls. ZFF was variably more than one: one in 56 specimens (50.9%), 2 in 33 (30%), 3 in 10 (9%), and 4 in one (0.9%). ZFF was located 7.3 mm lateral and 3.7 mm inferior to P point, which was defined as crossing a line along the upper border of the zygomatic arch and a vertical line on the lateral orbital rim. The distance from the zygomatic suture to ZFF was 24.4 mm on average. ZFF was located 7.61 mm from the closest orbital rim. ZFF was located 13.0 mm from the nearest zygomatic angle (the junction of the zygomatic arch and lateral orbital rim). Most ZFF were within an ellipse of 15 mm in the major axis and 5 mm in the minor axis. The ellipse was 5 mm from P point. Our data suggest the osteotomy line in malar reduction should be placed at least 10 mm lateral to the lateral orbital rim.

Systematized methods of surface reconstruction from the serial sectioned images of a cadaver head.

Shin, Dong Sun,Chung, Min Suk,Park, Jin Seo B.C. Decker Inc 2012 JOURNAL OF CRANIOFACIAL SURGERY - Vol.23 No.1

<P>Three-dimensional models have played important roles in medical simulation and education. Surface models can be manipulated in real time and even online; surface models have significant features for an interactive simulation system. The objective surface models are obtainable from accumulation of each structure's outlines, followed by surface reconstruction. The aim of this research was to suggest the arranged methods of surface reconstruction, which might be applied to building surface models from serial images, such as computed tomographic scans and magnetic resonance images. We used recent state-of-the-art sectioned images of a cadaver head in which several structures were delineated. Four reconstruction methods were regulated according to the structure's morphology: all outlines of a structure are overlapped and singular (method 1), overlapped and not singular (method 2), not overlapped but singular (method 3), and neither overlapped nor singular (method 4). From the trials with various kinds of head structures, we strongly suggested methods 1 and 2, in which volume reconstruction before surface reconstruction accelerated the processing speed on 3D-DOCTOR. So as to use methods 1 and 2, how to make the neighboring outlines overlapped in advance was discussed. The surface models of detailed head structures prepared in this investigation will hopefully contribute to various simulations for clinical practice. The value of the surface models are enhanced if they are placed over the original sectioned images, outlined images, and magnetic resonance images of the same cadaver.</P>

Musculature of the Pars Marginalis of the Upper Orbicularis Oris Muscle

Hwang, Kun,Kim, Dae Joong,Hwang, Se Ho B.C. Decker Inc 2007 The Journal of craniofacial surgery Vol.18 No.1

The aim of this study is to elucidate the muscular structure of the pars marginalis of the upper orbicularis oris muscle. Full-thickness upper lips of 11 Korean adult cadavers were used. Four sagittal sections were made and stained with trichrome. Throughout the vermilion zone of the upper lip, the pars marginalis is substantially anterior to the adjacent bundles of the pars peripheralis. The breadth was 1.3 to 2.5 mm above the vermillion border (2.5 ± 0.8 mm on the midline of philtrum, 1.3 ± 0.6 mm on the peak point of Cupid's bow, 1.6 ± 0.5 mm at midlateral side, and 1.6 ± 0.4 mm at mouth corner). The lowest limit of the pars marginalis was located 2.5 to 3.1 mm below the vermillion border (3.1 ± 0.4 mm on the midline of philtrum, 3.0 ± 0.7 mm on the peak point of Cupid's bow, 3.0 ± 0.7 mm at midlateral side, and 2.5 ± 0.7 mm at mouth corner). The thickness of the pars marginalis varied between 1.1 and 2.0 mm (2.0 ± 0.5 mm on midline of philtrum, 1.8 ± 0.5 mm on the peak point of Cupid's bow, 1.9 ± 0.5 mm at midlateral side, and 1.1 ± 0.3 mm at mouth corner). An anatomic knowledge is conducive to precise repairs of the upper lip, particularly in cheiloplasty of congenital cleft lips.

VersaJet Hydrosurgery System: an effective device for flap deepithelialization.

Oh, Sang-Ha,Song, Seung Han,Kyung, Hyunwoo,Kang, Nak Heon,Park, Jae Beom,Hee Kim, Kyung B.C. Decker Inc 2014 JOURNAL OF CRANIOFACIAL SURGERY - Vol.25 No.4

<P>Many instruments and techniques to reduce time and effort for deepithelialization have been described, but they are time-consuming and labor-intensive. The VersaJet Hydrosurgery System (Smith Nephew, Hull, United Kingdom) has gained widespread acceptance and use for fast, selective, and easy soft tissue debridement. The authors described the use of the VersaJet Hydrosurgery System for flap deepithelialization. Operative techniques, overall time, and histology are reviewed. Six gluteus maximus myocutaneous V-Y advancement flaps were used in 3 patients who underwent flap insetting with partial deepithelialization by VersaJet. The mean time savings was 12 minutes (range, 10-15 min). The flap deepithelialized by VersaJet shows significantly even and regular surface in gross view. In the histologic study, the thickness of preserved papillary dermis was thicker using the Versajet because it contains much skin appendages when compared with conventional scalpel debridement. No patients developed infection, epidermal cyst, or hematoma. The VersaJet provides safe, effective, and tissue-preserving deepithelialization compared with using scalpel.</P>

Tracing the Use of Cautery in the Modern Surgery

B.C. Decker Inc 2018 The Journal of craniofacial surgery Vol.29 No.1

Magnet-Retained Orbital Prosthesis Using a Dental Implant

B.C. Decker Inc 2017 The Journal of craniofacial surgery Vol.28 No.2

<P>The loss of an eye and the associated facial disharmony has major physical, psychological, and social consequences for patients undergoing orbital exenteration. A magnet-retained prosthesis with an implant has various advantages over both adhesive and spectacle-retained prostheses for reconstruction of the exenterated orbit. The author demonstrates one representative patient with our orbital reconstruction patients with magnetic implants, which will be applied to various maxillofacial prosthesis strategies in the near future.</P>

Clinical Manifestation of a Patient With Forehead Sparganosis

Kim, Soung Min,Amponsah, Emmanuel Kofi,Eo, Mi Young,Cho, Yun Ju,Lee, Suk Keun B.C. Decker Inc 2017 The Journal of craniofacial surgery Vol.28 No.4

<P>The authors report the rare occurrence of cutaneous forehead sparganosis of a 19-year-old male who presented with a soft subcutaneous mass in the forehead, along with a related literature review.</P>