Shoulder Augmentation

As the breast of woman is considered as a symbol of femininity, the shoulder of man is regarded as a symbol of masculinity. Narrow shoulders disallow proper fitting of male clothing and result disproportionately large and unbalanced facial look in men. The purpose of this article was to evaluate the aesthetic outcomes of shoulder augmentation using soft silicone in patients with narrow shoulders. From April 2009 to July 2010, 21 male patients received shoulder augmentation by using silicone implants in the subfascial space of the deltoid muscle. The silicone implant was prefabricated according to the shape of the lateral portion of the deltoid muscle, and placed in subfascial pocket. After the operation, the shoulder width was increased by 6.6cm on average and patients were satisfied with their augmented shoulders, giving them more sharp figure when wearing their clothes. The firmness of the soft silicone is similar that of the deltoid muscle, and the curvature of the implant looks like a natural deltoid muscle. The subfascial position of the implant does not limit the range of motion of the shoulder joint. The authors expect that shoulder augmentation will take part in a new entity of body contouring surgery.

Reverse Skin Redraping Epicanthal Reconstruction

Medial epicanthoplasty is prevalently performed to increase the horizontal palpebral fissure and to correct sharp appearance of medial canthus with epicanthal fold. However, there has been no definite method to restore over-corrected medial epicanthoplasty. Author performed cosmetic epicanthal reconstruction in order to correct over-corrected medial epicanthoplasty using reverse skin redraping method. From January to June 2009, there were 8 patients who received cosmetic epicanthal reconstruction using reverse skin redraping. Mean preoperative intercanthal distance was 33.0mm, and mean follow-up period was 1 month. After operation, epicanthal fold was reconstructed, increasing the intercanthal distance by 4.2mm(mean). Most of postoperative repair line was located at the posterior side of the reconstructed epicanthal fold and subciliary line, therefore, the scar was almost invisible. No major complication was noted. This method can be effective in reversing over- corrected medial epicanthoplasty.

Cosmetic Lengthening and Repositioning of the Lateral Canthal Angle with Skin-Muscle Redraping Method

The size and shape of palpebral fissures are the most important features to determine the eye shape. There have been many methods reported for the lateral canthal lengthening. The authors performed lengthening of lateral canthal angle using skin-muscle redraping method to lengthen the palpebral fissure and lower the upturned lateral canthus. From December 2008 to Aug 2009, 27 patients underwent lengthening of lateral canthal angle using skin-muscle redraping. Twelve cases had lateral canthal lengthening with double eyelid operation or blepharoplasty. and combination with rhinoplasty, epicanthoplasty, and the other 9 cases was performed. There were 2 males and 25 females with ages ranging from 19 to 45 years. The procedure was composed of inferolateral canthotomy, tarsal-periosteal canthopexy, subciliary incision, skin-muscle flap elevation that connecting with canthotomy space and skin-conjunctival repair. After operation, the length and tilt of the palpebral fissures were improved remarkably, and most patients were satisfied. There were 3 patients who presented with complication; 2 cases of chemosis and 1 case of overcorrection. However, no major complication was noted. This method can be effective in lengthening the palpebral fissure and lowering upturned lateral canthal angle without significant recurrence and scar.

A Effect of Pretreatment Period on CO2 Laser Resurfacing in Guinea Pig Skin: A Comparative, Histologic Study

For the pre-treatment prior to laser resurfacing, materials such as glycolic acid, tretinoin, and/or hydroquinone have been widely used. However, the optimal duration of pretreatment is still controversial. The authors chose guinea pig skin which is similar to human skin, pre-treated it with tretinoin and hydroquinone with different duration, and examined gross and histologic changes after performing laser resurfacing in an attempt to study the effect of pre-treatment period on CO2 laser resurfacing. Sixteen guinea pigs were divided into four groups, and the dorsal skin was pre-treated with 0.05% tretinoin cream and 4% hydroquinone for 4, 8, and 12 weeks respectively while groupI underwent no pre-treatment as control. During the pre-treatment period, the authors observed gross skin reactions, and also examined the number of epithelial layers, thickness changes, the extent of epithelial regeneration, and collagen tissue change within dermis layer with skin tissue samples before and after laser resurfacing. Compared to group I(control) which received no pre- treatment, pre-treatment groups showed rapid epithelial hyperplasia and increase in the number and thickness of squamous epithelial cells and granular cell layer. However, there was no statistically significant difference in epithelial regeneration and number and thickness of epithelial cell layer between the 4-weeks, 8-weeks, 12- weeks pretreated groups. Pre-treatment with tretinoin and hydroquinone prior to laser resurfacing helped epithelial regeneration after resurfacing, but as to the benefit of long-term pre-treatment more than 4 weeks was not necessary.

Traumatic Displacement of the Globe into the Ethmoid Sinus: Case Report

We experienced a rare case of traumatic displacement of the globe into the ethmoid sinus. A 66-year-old man sustained trauma of the right eye and orbit, which resulted in displacement of the globe into the ethmoid sinus. One day after injury, surgery was performed to restore the intact globe into position within the orbit. Ten days after the operation, light perception was noticed only when transillumination was placed into orbit. Trace test undergone 45 days after the operation, no sight were measured from right eye, and the movement of right eyeball was not possible in any direction. We believe that the nerve and extraocular muscles were severed against the floor of the orbit or severely traumatized as the globe entered the ethmoid sinus. This case is very rare and never reported in Korea. We treated by replacing the globe in the orbit surgically and reconstructing the orbital floor with acurate diagnosis by the Computed Tomography(CT) scan.

Congenital Lacrimal Sac Fistula

Congenital lacrimal sac fistulas are relatively uncommon and are estimated to occur in 1 per 2000 birth. They consist of a dimple opening that leads to the lacrimal sac. Most of the fistulas are unilateral and are located inferonasally to the medial canthus. The patients may be asymptomatic and overlooked for some time after birth, or may demonstrate tearing from the fistula, the eye, or both. The treatment of those with symptoms such as epiphora and dacryocystitis is still controversial. In cases with nasolacrimal obstruction, performing dacryocystorhinostomy in addition to excision is appropriate. Therefore, it is necessary to determine whether nasolacrimal obstruction is present before or during the operation in deciding treatment method. But in most cases, treatment is possible with excision alone. From September, 1999 to February, 2002 authors treated 3 cases of congenital lacrimal sac fistulas without nasolacrimal obstruction and good results were obtained by the method of fistulectomy alone.

The Effects of Glucocorticoid and alpha-Lipoic Acid on Ischemia-Reperfusion Injury

During revascularization after ischemia, oxygen free radicals and cytotoxic enzymes are released and they have a role in pathogenesis of ischemia-reperfusion injury. Glucocorticoid decreases oxygen free radical formation by inhibition of arachidonic acid metabolism, and alpha-lipoic acid scavenges nitric oxide(NO) with inhibition of hydroxy radical formation. Author investigated the role of glucocorticoid and alpha-lipoic acid to decrease ischemia reperfusion injury in 24 anesthetized rats (normal saline-injected, n= 8; dexamethasone-injected, n=8; alpha-lipoic acid-injected, n= 8), subjecting a soleus muscle to 4 hours of tourniquet ischemia followed by 2 hours of reperfusion, and evaluated the concentration of NO, tissue edema, and neutrophil count of rat skeletal muscle as a indicator of tissue damage by ischemia- reperfusion injury. We obtained the results that glucocorticoid and alpha-lipoic acid treatment decreased the increase of NO concentration, tissue edema, and neutrophil count significantly. These results support that pretreatment with glucocorticoid or alpha-lipoic acid has a beneficial effect on the preventive management of ischemia-reperfusion injury.

Conjunctivodacryocystorhinostomy with Rubber-Tipped Jones Tube

One of the problems of conjunctivodacryocystorhinostomy which employs the conventional Jones tube is that the end of Jones tube has to be manipulated by the surgeon so that the tube resides within the nasal cavity while not touching the middle turbinate and the nasal septum. As a result, for most of the patients who have high nasal septal deviation, paradoxical curvature, or middle turbinate hypertrophy, there wasn't enough room within the nasal cavity where one end of Jones tube could rest. Such patients required either septoplasty or turbinectomy before they underwent conjunctivodacryocystorhinostomy. In order to overcome such a problem, the authors connected a 4 Fr. rubber tube to the conventional Jones tube, and helped the end of the tube to reside within the nasal cavity regardless of the anatomical variation of either the nasal septum or the middle turbinate. When such modified procedure is used, the conven tional Jones tube will make contact with the conjunctiva, lacrimal sac, and the nasal mucosa while the rubber tube remained afloat within the nasal conjunctiva. Such modification helps the tube to reside within the nasal cavity without foreign body reactions and granulation tissue complications, and there is no need to change tubes in order to make up for the loss of tube length due to post operative tissue contracture. Between April 2000 and August 2001, the authors performed conjunctivodacryo cystorhinostomy with rubber-tipped Jones tube on 8 patients with nasolacrimal duct obstruction, and obtained satisfactory results without complications.

Reconstruction of Lower Extremity Soft Tissue Defect using Gastrocnemius Musculo-adipofascial Flap

UUse of the gastrocnemius muscle flap has proven to be highly effective in reconstruction of knee and lower leg defect due to its easy procedure, anatomical consistency, and less donor site morbidity.The gastrocnemius muscle is anatomically spindle shape, the volume of the distal part of the muscle for coverage is actually quite small and also even smaller when disuse atrophy is accompanied due to trauma. Although the defect is inside flap's arc of rotation, it is out of gastrocnemius muscle flap's indication when the defect size is extensive, and even though the defect is small, it is also out of indication when the defect is a bit out of arc of rotation. There has been a lot of modification to increase the flap's arc of rotation or dimension. However, it is difficult to achieve satisfactory results due to limitation and expense in clinical application. Authors used, for soft tissue reconstruction on broader area, gastrocnemius musculo-adipofascial flap, rather than classical gastrocnemius muscle flap, based on the fascial plexus of gastrocnemius muscle. We obtained a good result in lower extremity reconstruction of 7 cases from March 1999 to July 2000 and report this result with several cases.

Submuscular periareolar approach to augmentation mammoplasty

No Abstract Available.

The effect of indomethacin on the production of eicosanoids and edema during ischemia-reperfusion injury in skeletal muscle

During reperfusion of skeletal muscle after ischemia, lipid mediators, mainly eicosanoids, are released and may have a role in the pathogenesis of reperfusion injury. To validate the role of eicosanoids in the ischemia-reperfusion induced functional deficits in skeletal muscle, we compared muscle edema and the changes of eicosanoid concentration in the rat hind limb after ischemia-reperfusion injury by application of tourniquet. After 4 hours of ischemia, reperfusion was established for 4 hours by releasing tourniquet. To assess tissue damage, edema, and wet/dry weight ratios were determined and the eicosanoid concnentrations were measured by the HPLC. The muscle edema and the release of cyclooxygenase metabolites were not induced by the ischemia itself rather they were significantly increased by reperfusion. Indomethacin treatment ameliorated limb edema and decreased the release of 6-keto-PGF1alpha, thromboxane B2, and PGE2 induced by reperfusion. But the inhibitory effect of indomethacin on edema (35%) was relatively low than the inhibitory effect on release of cyclooxygenase metabolites (up to 69%) by reperfusion. These results support the view that cyclooxygenase products may play a significant role in the formation of muscle injury by ischemia-reperfusion and suggest that nonsteroidal antiinflammatory agents might be partially beneficial to the management of acute limb ischemia-reperfusion injury.

The Antivasospasmic Effect of Arterial Freezing on Acute Damaged Endothelium

During the microsurgery or during the postoperative period, the occurrence of the vascular spasm increases the failure rate of microvascular anastomosis,and in cases of trauma, the thrombogenic possibility is increased by the endothelial damage. The author thought that the vascular freezing of crushed vessels could improve the patency rate of microvascular anastomosis. Vascular freezing destroys most of the cells in the intima and media. There by causing degeneration of adrenergic fibers. Even though regeneration occurs after 2-3 weeks, regeneration in the smooth muscle layer is still incomplete. So vascular freezing has beneficial effects on relief of vasospasm. Fifteen Sprague-Dawley rats weighing approximately 300 g each were inflicted with crushing injury on the femoral arteries of the right side and the crushing injury with vascular freezing on the femoral arteries of the left side. The gross and histologic findings, as well as the patency rates, were observed at the postoperative 2nd, 10th, and 30th day,and the results were compared between the crushed and crush-freezing groups. The left side (crush-freezing group) showed less vasospasm and less thrombogenesis than the right side (crushed group). There were no significant differences in the patency rate between the crushed group and crush-freezing group. Vascular freezing is suggested to be effective on a potentially thrombogenic, endothelial damaged vessel as a prophylactic treatment method against vasospasm. Clinical application of vascular freezing awaits further experimentation.

Reconstruction of soft tissue defects using free serratus anterior muscle and adifofascial flap

The optimal reconstruction of soft tissue defects with exposure of blood vessel, nerve, tendon muscle, and bone requires muscle flap that provides a durable surface, appropriate bulk and stability. The serratus anterior muscle has been suggested as a versatile and reliable flap for reconstruction of head and neck and extremity injuries. In our department, reconstructive operations were performed for 18 patients who had soft tissue defect of upper or lower extremities or head from March 1995 to February 1996. We performed free flap of serratus anterior muscle in 13 patients, free flap of adipofascial tissue overlying serratus anterior muscle in 3 patients, free flap of both serratus anterior muscle and adipofascial tissue in 1 patient, free flap of serratus anterior muscle and rib in 1 patient. Their ages were 5 to 56 years, the ratio of male to female was 14 : 4. The defects involved the upper extremity in 6 patients, lower extremity in 10 patients, and scalp in 2 patients. Free flap using adipofascia overlying serratus anterior muscle was performed when gliding surface was required due to the exposure of some structure such as tendon. The average duration from operation to follow-up examination was 4 months(from 1 to 12 months). One total necrosis was observed in the patient who had crushing injury of forearm, and one partial necrosis was observed in other patient. In the rest 16 cases, results of operation were satisfactory. This kind of flap was very useful in reconstruction of soft tissue defect and gliding surface due to easy dissection, capability of getting long vascular pedicle, and no serious functional and cosmetic deficit on donor site.

Reconstruction of soft tissue defects using free serratus anterior muscle and adifofascial flap

The optimal reconstruction of soft tissue defects with exposure of blood vessel, nerve, tendon muscle, and bone requires muscle flap that provides a durable surface, appropriate bulk and stability. The serratus anterior muscle has been suggested as a versatile and reliable flap for reconstruction of head and neck and extremity injuries. In our department, reconstructive operations were performed for 18 patients who had soft tissue defect of upper or lower extremities or head from March 1995 to February 1996. We performed free flap of serratus anterior muscle in 13 patients, free flap of adipofascial tissue overlying serratus anterior muscle in 3 patients, free flap of both serratus anterior muscle and adipofascial tissue in 1 patient, free flap of serratus anterior muscle and rib in 1 patient. Their ages were 5 to 56 years, the ratio of male to female was 14 : 4. The defects involved the upper extremity in 6 patients, lower extremity in 10 patients, and scalp in 2 patients. Free flap using adipofascia overlying serratus anterior muscle was performed when gliding surface was required due to the exposure of some structure such as tendon. The average duration from operation to follow-up examination was 4 months(from 1 to 12 months). One total necrosis was observed in the patient who had crushing injury of forearm, and one partial necrosis was observed in other patient. In the rest 16 cases, results of operation were satisfactory. This kind of flap was very useful in reconstruction of soft tissue defect and gliding surface due to easy dissection, capability of getting long vascular pedicle, and no serious functional and cosmetic deficit on donor site.

The effects of hyperbaric oxygen therapy on the survival of dorsal random skin flap: an experimental study in streptozotocin-induced diabetic rats

There have been increasing interests of diabetes in the realm of plastic surgery due to problems like foot ulcer as a complication, delayed wound healing or higher failure rates of flap surgery. Main pathology in diabetes is microvascular compromise as well as metabolic derangements. The disturbance in microvascular circulation results in ischemic environments in the body and acts as a main factor that determines the limit of reconstructive or aesthetic plastic surgery. A useful method to overcome such problems is the use of hyperbaric oxygen therapy, which is known to be effective in the treatment of ischemic skin ulcer or osteoradionecrosis. However, there have been few studies on the survival of diabetic random skin flap or the effects of hyperbaric oxygenation directed to increase survival of such flap. In our study, we supposed that the survival of diabetic random skin flap was diminished owing to compromised microvascular pathology and blood rheology, and metabolic derangements, so we hypothesized that hyperbaric oxygen therapy has both reversible and irreversible effects on the survival of ischemic random skin flap in Streptozotocin-induced diabetic rats. Increase of local transcutaneous oxygen concentration, O2 affinity in blood and dysmorphogenesis of red blood cells are reversible and relatively short-term effects and promotion of neoangiogenesis is irreversible or long-term effects. We intended to confirm that hyperbaric rats and to compare the effects between preoperative and postoperative hyperbaric oxygenation on the survival of such flap. And we expect the additional effects of hyperbaric oxygenation on metabolism in diabetic rat, such as lowering the blood glucose level and solving the arrested weight gain. We divided Streptozotocin-induced diabetic rats into three groups: the first was non-treatment diabetic group, the second was preoperative hyperbaric oxygen treated diabetic group(100% O2, 2 atm, 90min, 15sessions, twice a day), and the third was postoperative hyperbaric oxygen treated group(100% O2, 2atm, 90min, 15sessions, twice a day). After elevation of random skin flap on dorsum of diabetic rats, we evaluated the extent of flap survival by measuring the necrotic areas at 3rd, 7th, 10th, and 13th postoperative days. At that time, we intended to evaluate both effects on flap survival by preoperative and postoperative hyperbaric oxygen therapy. As a result, flap survival of non-treated diabetic group was 41% at 13th postoperative days. In diabetic groups with preoperative and postoperative hyperbaric oxygen therapy, flap survival were increased to 64.6% and 62.4% respectively. Diabetic groups with hyperbaric oxygen therapy have a tendency of meaningful decrement in blood glucose level. However, there were no meaningful differences between preoperative and postoperative hyperbaric oxygen therapy. Hyperbaric oxygen therapy has no effective correlations with body weight changes. We conclude that hyperbaric oxygen therapy has some useful effects on the survival of diabetic random skin flap.

Comparison of Midazolam and Thiopental as an Induction Agent / 대한마취과학회지

Midazolam is a new water soluble benzodiazepine which used to induce anesthesia. The drug possesses properties similar to those of benzodiazepines(sedative, anxiolytic, anticonvulsant, muscle-relaxant) and has low toxicity compared with thiopental which is world-wide used for induction agent. Midazolam is characterized by slow onset of action, more gradual effects on circulation, low frequency of thrombophlebitis and greater degree of antegrade amnesia. Because of these characteristics midazolam is used as an alternative induction agent. As an induction agent, in order to evaluate the properties of midazolam compared with thiopental, 60 patients were divided into 2 groups. Group I, thiopental 5 mg/kg induction group; Group II, midazolam 0.15mg/kg induction group. Systolic and diastolic blood pressure, pulse rate, induction time and recovery time were measured in each group. Frequency of the throm bophlebitis, retrograde and antegrade amnesia were evaluated. In group I, systolic blood pressure decreased significantly and pulse rate increased signifi-cantly. In group II, diastolic pressure decreased significantly and pulse rate increased signifi-cantly. Induction time and recovery time were delayed significantly in group II than group I. In group II, frequency of the thrombophlebitis was lower and antegrade amnesia was greater than group I. Retrograde amnesia did not occured in both groups. On the basis of these data, midazolam used for induction maintains hemodynamic stability, induces anesthesia smoothly, produces low frequency of the thrombophlebitis and high frequency of antegrade amnesia. Therefore it is concluded that midazolam is safe and effective induction agent and may offers an advantage over thiopental in situations where hemodynamic stability is crucial.