• Archives of Reconstructive Microsurgery
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• 제4권1호
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• pp.43-51
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• 1995

In certain low-grade malignant bone tumors such as chondrosarcoma or frequent recurrent benign bone tumors as ossifying fibroma, radical treatment may provide a good chance for cure. And large bony defect after the radical treatment can be filled with the massive bone graft. Recent advances in clinical microsurgery have made free vascularized bone graft a clinical reality, and Taylor in 1975, first reported the technique of free vascularized fibula graft for the reconstruction of large tibial defect with excellent clinical results. We tried wide excision and free vascularized fibula graft in 5 patients with ossifying fibroma and one patient with chondrosarcoma from January 1984 to December 1994 and followed for more one year. The shortest bony defect was 7cm and the longest bony defect was 20cm and mean bony defect was 13cm. All patients were evaluated clinically and roentgenographycally on basis of functional recovery and bony union. All patients showed satisfactory functional recovery with sound bony union and showed bony hypertrophy. And, local recurrence was not seen.

• 대한기관식도과학회지
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• 제2권1호
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• pp.63-70
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• 1996

Reconstruction for hypopharynx and cervical esophagus after wide resection of extensive hypopharynx and larynx cancers have been used various methods including myocutaneous flaps, gastric pull up, md jejunal or large bowel free graft. Recently, the authors had experienced hypopharynx and larynx cancers with extension to the posterior hypopharyngeal wall and thoracic esophagus. Of course, these reconstructive methods should be selected in accordance with the patient's age, physical status, extend of prim.:W lesion, and defect after on block resection, however, gastric pull up was performed in hypopharynx cancer which had skipped lesion in the thoracic esophagus and jejunal free grafts were performed in case 2, 3 which had a extended lesions to the posterior pharyngeal wall. Some complications were noted, which were successfully stabilized by conservative managements. The gastric pull up and jejunal free graft were considered suitable methods for reconstrunction of hypopharynx and cervical esophagus, however, further studies are necessary about it.

• Journal of Chest Surgery
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• 제24권5호
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• pp.515-521
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• 1991

Since Carrel in 1907 reported transfer of a free jejunal segment in dog, reconstruction of the cervical esophagus and hypopharynx has been accomplished successfully with free jejunal transplantation using microvascular technique. Free jejunal graft is useful in cases of failed colonic interpositions. Three patients with benign esophageal stricture had undergone reconstruction with right colon interposition. Because of necrosis and stricture of the interposed colon, in each case the defect was reconstructed with a free jejunal graft by using microvascular technique. The postoperative course in two patients was uncomplicated, and they were able to eat general diet. Graft necrosis occurred in one patient, but she is waiting for a reoperation.

• Journal of Chest Surgery
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• 제38권6호
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• pp.445-449
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• 2005

부식성 식도협착의 재건수술시 대장의 혈액순환이 나쁜 경우 또는 대장치환술 후 허혈성 부전이 나타난 경우 가장 적합한 재건장기로는 유리공장이식편을 들 수 있다. 복잡하게 합병된 부식성식도협착 환자에서 유리공장이식편을 이용하여 식도재건술을 시행한 4예를 보고하고자 한다. 일차식도재건술로서 4예 중 3예는 대장치환술을, 1예는 장천공에 의한 복막염으로 Whipple's 술식 및 공장루설치술을 받았다. 1예는 인두대장문합부의에 유리공장첩포 이식을, 2예는 대장이식편 부전 부위에 유리공장이식편 치환을 받았다. 1예는 대장의 일부와 유리공장이식편을 이용하여 인두공장대장공장문합술을 시행하였다. 수술 후 문합부위 누출로 인한 재수술이 1예 있었다. 장기추적 관찰상 모두 연하곤란이 없었다. 여러 가지 원인으로 인하여 합병된 식도재건술이 필요하여 유리공장이식편을 사용했던 경우 만족할 술 후 이환율과 연하기능을 보였다.

• Journal of Periodontal and Implant Science
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• 제33권2호
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• pp.289-299
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• 2003

The autogenous free gingival graft is the most predictable procedure currently used to increase the width of　the attached gingiva in periodontics. But the major disadvantage of the procedure is to create the multiple surgical wounds at both a donor site and a recipient site. The other problem is the limited amount of available　graft material in oral cavity. Therefore, recent researches have been focused to develop the biomaterial to substitute the autogenous gingival tissue. The purpose of this study was to evaluate the histologic healing after　grafting of bilayer artificial dermis, compared to the free gingival graft. Four non-smoking subjects (mean age, 32.5 years) in systemically healthy state and good oral hygiene were selected according to their particular needs for correction of mucogingival problems as suggested by Nabers(1966). The recipient sites were prepared through the procedure for the free gingival graft and were grouped according to the graft materials: Experimental group(n=5) - bilayer artifcia1 dermis ($Terudermis^{(R)}$; Terumo Co. Japan) and Control group(n=6) - free gingival graft with autogenous palatal mucosa. Biopsies were harvested at 1,2,3 and 6 weeks postsurgery to evaluate histologically. At the third week in the experimental group and at the second week of in the control group, the grafts has been clinically stabilized on the recipient bed and the graft border has been blended into the surrounding tissue. In the experimental group after 1 week of grafting, the epithelial migration from the adjacent tissue to graft material was seen and after 3 weeks of grafting, the : nflmmation decreased, collagen layer of the artificial dermis was lost and the basement membrane of epithelium was formed. After 6 weeks of grafting, both groups demonstrated orthokeratinized epithelium and increased thickness of epithelial tissue and the rete peg formation, similar to the adjacent tissue, Histologic evaluation revealed a biologic acceptance and incorporation of the collagen layers of the graft tissue to the host tissue, without foreign body reaction. In conclusion, a bilayer artificial dermis is essentially similar to autogeneous free gingival graft in the correction of mucogingival problems, and has the advantages of decreased patient morbidity (no donor site) and availability of abundant amounts of graft material when needed.

• 대한치과의사협회지
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• 제52권10호
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• pp.615-622
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• 2014

Oral cancer ablation surgery results in tissue defects with functional loss. Accompanying neck dissection results in facial nerve weakness and dysmorphic changes. To minimize the complications after oral cancer surgery, accurate dissection without damaging facial nerve and vital structures are mandatory. Marginal mandibular branch of facial nerve should be dissected or contained in the superficial layer of deep cervical fascia to minimized facial palsy after operation. Reconstruction after cancer ablations is routine procedures and free flap reconstruction is the most commonly used. Radial forearm free flap is the most versatile flap to reconstruct soft tissue defects and it is easy to design according to the defect size and shape. However, donor site scar and secondary skin graft from thigh result in unesthetic and cumbersome wounds. Double layered collagen graft in the donor site could reduce secondary donor site for skin graft. In conclusion, oral and maxillofacial surgeon should know the exact anatomy of the face and neck during neck dissection. Radial forearm free flap is most versatile flap for soft tissue reconstruction and double collagen graft can reduce postoperative scar and there is no need for secondary skin graft.

• Journal of Periodontal and Implant Science
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• 제38권1호
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• pp.109-113
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• 2008

Purpose: Surgical intervention into the maxillary posterior area can lead to inadvertent communication with the maxillary sinus. Spontaneous healing of 1 to 2 mm openings can occur. However, in patients with larger oro-antral communications and those with a history of sinus disease, surgical closure is often indicated. Materials and Methods: In this case, a modified free gingival graft technique was used. The oro-antral sinus track after extraction was about $2{\times}4\;mm$. But the patient had a history of Caldwell-Luc operation. Immediately after extraction, a modified free gingival graft was used for the closure of oro-antral sinus track. Result: A modified free gingival graft technique was successfully used for the closure of oro-antral sinus track. With this technique, esthetic results including similar colors, textures were achieved. Conclusion: It is thought that this technique is very useful in the closure of oro-antral sinus track.

• Archives of Reconstructive Microsurgery
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• 제7권1호
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• pp.47-53
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• 1998

Despite of technical advances in surgery & other therapeutic modalities five-year survival rates in patients with carcinoma of hypopharynx have remained low. Many techniques have been used to create a structure capable of allowing the passage of food and fluids in an attempt to maintain the anatomy and physiology of the upper digestive system. The development of microsurgical techniques and the concept of mucocutaneous unit has brought about important changes in the reconstruction of cervical esophagus following tumor resection. The one-stage procedure using microvascular anastomosis of free jejunal graft provides physiologic reconstruction of cervical esophagus and has a low morbidity rate as well as a short recuperation time. With free jejunal graft, there is marked improvement in the quality of life and numerous advantages over the previous methods of reconstruction. Reconstruction of esophageal defect after resection of carcinomas of the hypopharynx, and cervical esophagus has traditionally been carried out with deltopectoral, or musculocutaneous skin-lined flaps. A second approach is to reconstruct the defect with the colon or stomach. A more ideal mettled is to repair these defects with mucosa-lined flaps. The authors experienced 35 cases of reconstruction of cervical esophagus after resection of carcinoma of the hypopharynx with free jejunal autograft and one case of secondary repair with radial forearm free flap after failure of initial free Jejunal autograft. Postoperative results were satisfactory in most patients and two patients expired in 8 days postoperatively because of carotid blow out by chronic inflammation.

• Journal of Chest Surgery
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• 제37권10호
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• pp.839-844
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• 2004

배경 및 목적: 속가슴동맥 편과 유리 노동맥 편의 Y-복합이식편은 관상동맥우회 술에 많이 이용된다. 이 연구의 목적은 속가슴동맥 편의 혈류를 증가시킬 수 있는 방법을 찾고 Y-복합이식편의 혈류역학을 알고자 함이다. 대상 및 방법: 관상동맥우회 술을 받은 15예에서 속가슴동맥 편을 두 가지 방법으로 처치하여 속가슴동맥 혈류량을 측정하였다. 7예에서는 혈관 외부에만 파파베린 액을 처치하였고 8예에서는 혈관 내로 파파베린 액을 주입하였다. 다른 18예에서는 속가슴동맥 편과 유리 노동맥 편으로 Y-복합이식편을 만들어 사용하였고 그 자유 혈류량과 두 분지의 혈류 변화를 조사하였다. 결과: 속가슴동맥 편의 혈관 내로 파파베린을 주사한 경우는 혈관외부에 파파베린을 처치한 경우보다 약 2배의 자유혈류량을 얻을 수 있었다(47.7$\pm$9.6 mL/min와 100.8$\pm$26.3 mL/min, p<0.001). Y-복합이식편의 양측을 다 연 상태에서 총 자유혈류량은 속가슴동맥 측만을 열었을 때나 노동맥 측만을 열었을 경우보다 훨씬 많았다(173.3$\pm$45.3 mL/min와 121.1$\pm$34.3 mL/min 혹은 117.5$\pm$42.8 mL/min, 각각 p<0.001). Y-복합이식편의 양 분지를 다 연 경우 양측의 혈류량은 차이가 없었다(85.4$\pm$27.8 mL/min와 87.9$\pm$42.4 mL/min, p=0.772). Y-복합이식편에서 한 측의 혈류량은 다른 측을 열 때보다 막을 때 훨씬 많았다. 결론: 속가슴동맥 편의 혈관 내에 파파베린 액을 주입하는 방법은 자유혈류량을 올릴 수 있는 매우 효과적인 방법이다. 속가슴동맥 편과 유리 노동맥 편의 Y-복합이식편은 속가슴동맥의 단독이식편보다 더 많은 자유혈류량을 보이며, Y-복합이식편의 한 측의 혈류량은 다른 측의 혈류량의 변화에 따라 변할 수 있다.

• Journal of Periodontal and Implant Science
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• 제10권1호
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• pp.43.2-43.2
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• 1980