Predicting the Permanent Safe Donor Area for Hair Transplantation in Koreans with Male Pattern Baldness according to the Position of the Parietal Whorl

BACKGROUND: The most crucial factor in hair transplantation for male pattern baldness (MPB) patients is the efficient utilization of the donor-recipient ratio. However, there is no known factor that scientifically predicts the rate of progression of alopecia or indicates a permanently safe donor area. METHODS: The study considered 1,008 Korean adult males with MPB; of these, it excluded 56 males with an absence of parietal whorls (PWs). The authors investigated the distance from the vertical bimeatal line (VM) to the PW, from the PW to the upper border of the helical rim (HR), and the distance from the PW to the occipital fringe (OF) in 952 subjects with a PW. Furthermore, we examined the distance from the PW to the OF considering the duration of alopecia and age in 322 subjects with vertex alopecia. RESULTS: The distance between the VM and PW varied from 1.5 to 11 cm, with an average distance of 6.25 cm. The PW-HR distance ranged from 3.4 to 17.5 cm, and the average distance was 7.79 cm. The PW-OF distance ranged from 0.5 to 5.5 cm, and the average distance was 2.37 cm. CONCLUSIONS: For the PW, very large variations existed in the vertical direction. The position of the PW could predict the progression range of the total alopecia of the vertex. Alopecia mostly progresses within 6 cm of the PW toward the occipital side.

Efficacy of Versiva(R) (Convatec, UK) Dressing in Treatment of Pediatric Facial and Neck Burn

PURPOSE: Yearly many children attend hospital with burns. Most of them are injured to face and neck. In palliative ways, dressing with vaseline gauze, it is thick and tight to absorb the exdute and maintain, but patients are inconvinient in eating and speaking. Especially, in pediatric face and neck burn patients, cooperation is impossible, so there is increased risk of secondary infection by wound exposure and physician should make dressing more frequently. In case of using dressing material, it is not far different in palliative dressing, we should use a tape or elastic bandage to keep wound surface and dressing material in contact. Versiva(R) is combination dressing materials of hydrocolloid, hydrofiber, a polyurethane foam. Authors have used Versiva(R) in a treatment of pediatric face and neck burn, and we experienced that maintenance of dressing is convenient and nutrition supply is easy through oral feeding. METHODS: Between from 2006 January until 2008 December, we performed dressings with Versiva(R) in 20 pediatric second degree face and neck burn patients. Until postburn 2 nd or 3 rd day, we exchanged dressing daily, and after this, exchanged in 2~3 days according to amount of exudate. RESULTS: Versiva(R) had enough absorbing capacity and adhesive strength at the same time. With this slight and thin dressing material, there was considerable decrease in discomfort of patient, frequency of secondary infection and keeping dressing were convenient. Oral feeding was easy due to waterproof surface of the Versiva(R). In comparison with effort and time in palliative dressing, there was a significant reduction of labor force. CONCLUSION: In Treatment of pediatric second degree face and neck burn patient, Versiva(R) dressing was effective method because of decreased hospital day, convinience, labor reduction, decreased patient discomfort, easy to oral feeding.

Correction of Frontal Bone Defect in Cleidocranial Dysostosis with Porous Polyethylene(Medpor(R)): A Case Report

PURPOSE: Cleidocranial dysostosis is a rare hereditary disorder affecting bones that develop by intramembranous formation. The typical features include excessive growth of transverse diameter of the skull, hypoplastic clavicles, low height and characteristic facial features. METHODS: A 28-year-old female patient visited by frontal area depression. The diagnosis was performed by computed tomographic study and radiographic imaging. The patient had widely opened anterior fontanelle, partial fused metopic suture, multiple wormian bone and supernumenary impacted teeth. Under the coronal incision, we exposed depressed frontal area and corrected with Medpor block carving. RESULTS: Postoperatively frontoparietal skull was aestheticlly improved and satisfied the patient. CONCLUSION: Authors report a case of cleiodocranial dysostosis who underwent correction of abnormal skull shape by Medpor(R) insertion.