1.Short-term outcomes of two-stage reverse total shoulder arthroplasty with antibiotic-loaded cement spacer for shoulder infection
Du-Han KIM ; Chung-Shin BEK ; Chul-Hyun CHO
Clinics in Shoulder and Elbow 2022;25(3):202-209
Methods:
Eleven patients with shoulder infection were treated by two-stage RTSA following temporary antibiotic-loaded cement spacer. Of the 11 shoulders, nine had pyogenic arthritis combined with complex conditions such as recurrent infection, extensive osteomyelitis, osteoarthritis, or massive rotator cuff tear and two had periprosthetic joint infection (PJI). The mean follow-up period was 29.9 months (range, 12–48 months) after RTSA. Clinical and radiographic outcomes were evaluated using the visual analog scale (VAS) score for pain, American Shoulder and Elbow Surgeons (ASES) score, subjective shoulder value (SSV), and serial plain radiographs.
Results:
The mean time from antibiotic-loaded cement spacer to RTSA was 9.2 months (range, 1–35 months). All patients had no clinical and radiographic signs of recurrent infection at final follow-up. The mean final VAS score, ASES score, and SSV were significantly improved from 4.5, 38.6, and 29.1% before RTSA to 1.7, 75.1, and 75.9% at final follow-up, respectively. The mean forward flexion, abduction, external rotation, and internal rotation were improved from 50.0°, 50.9°, 17.7°, and sacrum level before RTSA to 127.3°, 110.0°, 51.8°, and L2 level at final follow-up, respectively.
Conclusions
Two-stage RTSA with antibiotic-loaded cement spacer yields satisfactory short-term clinical and radiographic outcomes. In patients with pyogenic arthritis combined with complex conditions or PJI, two-stage RTSA with an antibiotic-loaded cement spacer would be a successful approach to eradicate infection and to improve function with pain relief.
2.Comparison of Physical & Histological Change of Alloplastic Implants after Implantation in Rat.
Sung Nam KIM ; Bok Kyun NOH ; Eui Sik KIM ; Jae Ha HWANG ; Kwang Seog KIM ; Sam Yong LEE ; Bek Hyun CHO
Journal of the Korean Society of Plastic and Reconstructive Surgeons 2006;33(2):219-224
Augmentation rhinoplasty is one of the most popular aesthetic procedure in Asians. Numerous alloplastic implants have been used until now, but no accurate comparative analysis about the implant materials has been reported yet. This study in animal model was designed to determine the safety and effectiveness of various implant materials in augmentation rhinoplasty. The 15 x 15 x 2 mm sized square shaped plate of Gore-Tex(R), silicone rubber, and 15 x 15 x 1.5 mm sized Medpor(R) were implanted under panniculus carnosus of the abdomen wall of rat. And tissue specimens including the implant and surrounding soft tissue were obtained by en bloc excision in 6 months after implantation. The implants were estimated in weight and volume, and also the specimens were examined grossly and microscopically. The results revealed that increase of average weight 26.9%, decrease of average volume 55.4% in Gore-Tex(R) implant, increase of each average weight and volume 62.6%, 8.7% in Medpor(R) implant and very slight increase of both average weight and volume 4.7%, 1.1% in silicone rubber implant. Grossly, the Gore-Tex(R) was deformed, Medpor(R) was strongly adherent to surrounding soft tissue and the silicone rubber was well encapsulated and easily peeled off. Microscopically, silicone rubber showed foreign body reaction slightly and there were no inflammatory responses in all alloplastic implants. In our study, silicone rubber showed very proper alloplastic features for augmentation rhinoplasty due to causing no inflammatory response, no physical change, and no deformity.
Abdomen
;
Animals
;
Asian Continental Ancestry Group
;
Congenital Abnormalities
;
Foreign-Body Reaction
;
Humans
;
Models, Animal
;
Rats*
;
Rhinoplasty
;
Silicone Elastomers
3.Combination of Nasal Ostectomy and Augmentation Rhinoplasty in the Correction of Traumatic Nasal Deformity.
Sung Nam KIM ; Eui Sik KIM ; Jae Ha HWANG ; Kwang Seog KIM ; Sam Yong LEE ; Bek Hyun CHO
Journal of the Korean Society of Plastic and Reconstructive Surgeons 2005;32(5):555-560
The nose is shaped as a pyramid and is the most prominent portion of the face. Nasal bone fractures are thus more frequent than those of the maxilla and zygoma. Whether the nasal bone fractures are corrected or not due to unnecessity of surgical treatment, the incidence of posttraumatic deformity occurs frequently. In Asian patients, even the corrected noses look low- lying and flat. To resolve these problems, we corrected the posttraumatic deformity of the nose with a combined procedure of nasal ostectomy and augmentation rhinoplasty. From 2000 to 2004, this procedure was performed in fifteen patients with posttraumatic nasal deformity. There were four female and eleven male patients with an average age of 32 years(range 19 to 52 years). All patients had previous trauma history. Of these, closed reduction was performed on 13 patients and no treatment was 2 patients. The deformed noses were corrected through lower columellar incision, by ostectomy or osteomy, and augmentation with silicone implant. We gained satisfactory results of correcting the deformed noses, except one case with implant deviation. Our method for the correction of traumatic nasal deformity proves to be simple and safe. The camouflage effect with silicone implant overcomes an unsatisfactory correction and brings a excellent cosmetic results.
Asian Continental Ancestry Group
;
Congenital Abnormalities*
;
Deception
;
Female
;
Humans
;
Incidence
;
Male
;
Maxilla
;
Nasal Bone
;
Nose
;
Rhinoplasty*
;
Silicones
;
Zygoma
4.Augmentation Rhinoplasty Combined with Tip Plasty Using AlloDerm(R).
Myong Cheol KIM ; Bek Hyun CHO ; Dong Kook SEO ; Sung Kyoon OH ; Jang Hyu KO ; Jong Wook LEE ; Young Chul JANG ; Suk Joon OH
Journal of the Korean Society of Aesthetic Plastic Surgery 2005;11(2):242-247
Because the Korean nose has a flat dorsum and depressed tip, tip projection procedure has frequently been performed as an ancillary procedure of dorsal augmentation. Although various materials have been used for tip plasty, an ideal technique has not yet been described. The authors performed classic augmentation rhinoplasty using a silicone implant to correct flat dorsum. Alloderm(R)(Life Cell Corporation, the Woodlands, Texas), acellular human dermis, was used for soft and smooth projection of the nasal tip. From January of 2000 to August of 2003, 20 patients underwent this procedure in Department of Plastic and Reconstructive Surgery. The patients were followed up for 2 to 26 months. Postoperative course was uneventful. Although partial graft resorption was noted in 3 patients, long-term follow-up showed good results. Alloderm(R) usage for tip plasty allows natural contour of the nasal tip, decreases donor site morbidity, and obviates time consuming procedures for graft harvesting. In conclusion, Alloderm(R) graft could be an appropriate alternative in tip projection procedure.
Dermis
;
Follow-Up Studies
;
Humans
;
Nose
;
Rhinoplasty*
;
Silicones
;
Tissue Donors
;
Transplants
5.Surgical Correction of Cleft Lip and Nose Deformity Associated with Augmentation Rhinoplasty Using Silicone Implant.
Jun Hyeok KOH ; Kwang Seog KIM ; Bek Hyun CHO
Journal of the Korean Cleft Palate-Craniofacial Association 2004;5(1):17-23
The correction of secondary cleft lip and nose deformity often presents an extremely difficult plastic surgical problem. The deformity is a complex, three dimensional alteration in nasal anatomy with defects in all tissue layers : skin, cartilage, vestibular lining and bone. The patient who has these kinds of deformities undergoes the aggravation of deformities, as the patient grows older. And the decreased length of maxilla is accompanied by the deficiency of posterior development. As a result, the depression of nose and midface is usually developed and especially the depression of nose is severely noted in an oriental. To correct this secondary cleft lip nose deformity in Oriental patients, alar cartilge mobilization and suspension techniques have been developed. But, these techniques have critical limitations in the suspension vector and power. Oriental people usually have thin alar cartilages and thick skin. So, the suspended, deformed alar cartilage may relapse and pull the normal alar cartilage to the deformed side. To overcome these limitations, we have carried out the augmentation rhinoplasty using a silicone implant with Tajima's inverted U incision and interdomal suturing at the same time, which is inexpensive and easily handled, to twelve patients of secondary cleft lip and nose deformity for recent 2 years. The results were considerably satisfactory, so we report this paper and then can ascertain the further aesthetic benefits, such as the postoperative augmentation of a nose, finer nasal tip and the symmetry of both nostrils.
Cartilage
;
Cleft Lip*
;
Congenital Abnormalities*
;
Depression
;
Humans
;
Maxilla
;
Nose*
;
Recurrence
;
Rhinoplasty*
;
Silicones*
;
Skin
6.A Simple Corrective Method for Prominent Ear.
Dae Young KIM ; Seong Won MOON ; Eui Sik KIM ; Tae Young CHO ; Jae Ha HWANG ; Kwang Seog KIM ; Sam Yong LEE ; Bek Hyun CHO
Journal of the Korean Society of Plastic and Reconstructive Surgeons 2004;31(4):579-583
Various methods have been used to correct the prominent ear, in which the deformity is due to lack of formation of the normal antihelix. In 1963, Mustard presented a method which creates the antihelical fold by placing permanent mattress sutures through the cartilage without using any actual cartilaginous incisions. However, the main disadvantage of this method is difficulty in accurate full- thickness transcartilaginous suture without an injury to the anterior auricular skin. To solve this problem, the authors separated the anterior auricular skin from the cartilage by a subcision method using a 21-gauge needle without making a skin incision. Between 2001 and 2002, a total of 16 prominent ears in 12 patients were corrected by this method. Eight patients underwent unilateral correction and four patients underwent bilateral correction. Seven were female and 5 were male. Patients' age at operation ranged from 5 to 24 years(mean 9.7 years). Patients were followed up from 5 to 14 months(mean 8.6 months). No major complications were observed while using this method and good aesthetic result was achieved in all cases, except one recurrence case that needed revision procedure. This method is a simple and safe technique with reliable aesthetic results and no scar on the anterior auricular skin.
Cartilage
;
Cicatrix
;
Congenital Abnormalities
;
Ear*
;
Female
;
Humans
;
Male
;
Mustard Plant
;
Needles
;
Recurrence
;
Skin
;
Sutures
7.Role of Perivenous Areolar Tissue in the Viability of Island Flaps with an Exclusively Venous Pedicle.
Su Rak EO ; Kwang Seog KIM ; Dae Young KIM ; Sam Yong LEE ; Bek Hyun CHO
Journal of the Korean Society of Plastic and Reconstructive Surgeons 2003;30(1):59-66
For the venous flap to survive, it apparently needs to be a flow-through of venous blood.1 Nevertheless, controversy remains, regarding the fact that an island flap based on a terminating venous pedicle is capable of maintaining viability.2-15 This study was designed to investigate the role of perivenous areolar tissue in the viability of island flaps with an exclusively venous pedicle in the rabbit ear model as described by Inada et al.16 Ten groups of flaps were studied: Group A-flaps based on a proximal venous pedicle; group B-flaps based on a distal venous pedicle; group C- nonvascularized grafts; each subgroup A1-, B1-flaps with perivenous areolar tissue; each subgroup A2-, B2-flap which was skeletonized pedicle; each subgroup A3-, B3-flap was same as A1-, B1-flap, which was sutured over a silastic sheet; each subgroup A4-, B4-flap with a skeletonized venous pedicle sutured over a silastic sheet; subgroup C1-control, placed directly on bed; subgroup C2-control which was sutured over a silastic sheet. Groups A3, A4, B3 and B4 had 20 flaps and the remaining groups had 10 flaps each. Flaps in group A1, A3, B3 had total survival. In groups A4, B4, C2, no flaps were survived. The survived flaps in groups A3 and B3 had tissue oxygen content values between those of arterial and venous levels. Histological examination of the pedicle of survived flaps in groups A3 and B3 showed small vascular channels present in the areolar tissue surrounding the venous pedicle. Static and dynamic computerized radioactive tracer experiments showed that the survived flaps in groups A3 and B3 were promptly perfused and drained through their pedicles. This study confirms the importance of the perivenous areolar tissue for survival of the venous skin flap in the rabbit ear model.
Ear
;
Oxygen
;
Skeleton
;
Skin
;
Surgical Flaps*
;
Transplants
8.Localization of Cyclooxygenase Isozymes in Dermal Wound Healing in Mouse.
Jun Hyeok KOH ; Kwang Seog KIM ; Dae Young KIM ; Sam Yong LEE ; Bek Hyun CHO ; Chun Sang BAE
Journal of the Korean Cleft Palate-Craniofacial Association 2003;4(1):87-93
Cyclooxygenase(COX)-1 and COX-2 expression in dermal wound healing of mouse was detected by immunohistochemistry and Western blot analysis. In order to gain more information on the functional importance of COX-1 and COX-2 in dermal wound healing, we analysed COX-1 and COX-2 protein levels using the Western blotting technique. In addition, we used immunohistochemistry to determine the cellular localization of the protein products. The collected skins were rapidly frozen and kept at -70degrees Cuntil assayed. Each frozen skin was lysed with 0.5 ml of ice-cold solution. Large tissue debris and nuclear fragments were removed by two low-speed centrifugations and the resulting supernatant fraction was used for blots. The skin extracts were stored below -20degrees Cfor further experiments. By Western blotting, compared to the activity of COX-2 in normal skin, its activity was increased at days 1, 4, 8, and 12 and was maximal at 1 day after incisional wound of mouse skin whereas COX-1 was barely detectable. In normal skin, COX-1 immunostaining was observed among the basal cells of epidermis whereas COX-2 immunostaining was detected in the more differentiated, suprabasal keratinocytes. At post-incision 1-4 days, COX-2 staining was particularly prominent in the inflammatory cells, and at day 8, many macrophage-like cells were stained positively. COX-2 immunoreactive fibroblast, macrophage-like cells, and newly formed vascular endothelial cells were increased in number at 12 days after incision. These data suggest that COX-2 is constitutively expressed, just as is COX-1, in epidermis and is associated with keratinocyte differentiation. In addition, these findings support the well-established role for COX-2, the prostaglandins that they generate, as mediators of inflammatory response.
Animals
;
Blotting, Western
;
Endothelial Cells
;
Epidermis
;
Fibroblasts
;
Immunohistochemistry
;
Isoenzymes*
;
Keratinocytes
;
Mice*
;
Prostaglandin-Endoperoxide Synthases*
;
Prostaglandins
;
Skin
;
Wound Healing*
;
Wounds and Injuries*
9.Surgical Correction of Scalp Defect after Tumor Removal by Tissue Expansion Technique.
Journal of the Korean Cleft Palate-Craniofacial Association 2003;4(2):149-155
Since the introduction of expansion technique by Neuman(1957), the use of it has been repeatedly adjusted to the breast reconstruction, head and neck reconstruction and treatment of male pattern baldness, and so on, by the improvement of expansion devices and advancement of expansion techniques. We also used this technique in 5 patients who have scalp tumor, either benign or malignant, for 3 years(from 2000 to 2003) and specific complications were not found except wide scars. This technique has shown more excellent result than any other techniques already used and has made it possible to cover the scalp defect without the loss of hair in donor site, so we report this paper and then can ascertain the further benefits, such as the effective coverage of scalp defect by hair bearing normal scalp.
Alopecia
;
Cicatrix
;
Female
;
Hair
;
Head
;
Humans
;
Mammaplasty
;
Neck
;
Scalp*
;
Tissue Donors
;
Tissue Expansion*
10.Vermilion Augmentation of Secondary Cleft Lip and Nose Deformity by AlloDerm(R).
Soo A LIM ; Dong Eun LEE ; Bek Hyun CHO
Journal of the Korean Cleft Palate-Craniofacial Association 2003;4(1):31-35
Secondary deformities can exist after repair of cleft lip by sophisticated method of primary cheiloplasty and can affect some or all of the previously cleft regions. There may be lip scar, nasal deformity, vermilion deficiency, and maxillary hypoplasia. The correction of secondary cleft deformities is difficult and requires efforts of a multidisciplinary team. There are many operative techniques for correction of the vermilion deficiency, for example double V-Y advancement mucosal flap or double pendulum flap etc. But, these methods are very complex and can remained the scar on vermilion. Twenty six patients of secondary cleft lip and nose deformity with vermilion deficiency were operated in our department from January 1999 to June 2002. The secondary cleft lip and nose deformity was corrected by various operative methods, and the vermilion deficiency corrected by using acellular human dermis(AlloDerm(R), Life Cell Corp., Woodlands, Texas). The three cases suspected for AlloDerm(R) to be absorbed showed that the augmentation of vermilion was poor but another cases showed satisfactory result with good augmentation of vermilion and minimal scar. In conclusion, vermilion augmentation using AlloDerm(R) has the several advantages such as simplicity, shorter operation time, and effectiveness compared with other surgical methods.
Cicatrix
;
Cleft Lip*
;
Congenital Abnormalities*
;
Humans
;
Lip
;
Nose*

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