• Title/Summary/Keyword: 자가이식술

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Autotransplantation of impacted mandibular canine (매복 하악 견치의 자가이식술을 이용한 치험례)

  • Hong, Seong-Soo;Lee, Sang-Ho;Kim, Dong-Phil
    • Journal of the korean academy of Pediatric Dentistry
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    • v.24 no.3
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    • pp.710-717
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    • 1997
  • Autotransplantation is the transplantation of embeded, impacted, or unerupted tooth, into extraction socket or surgically prepared socket in the same individual. Clinically, successful autotransplantation must show radiolucent space(periodontal ligament space) between transplanted tooth and supporting bone, lamina dura, no root resorption, no ankylosis, no inflammatory change, and physiologic tooth mobility. It is important that procedure is atraumatic, and the instruments should not contact the root surface during procedure. We performed autotransplantation of impacted mandibular canine that transversely located beneath the apices of the mandibular incisors with uncompletely developed apex. In radiographs and clinical evaluation, this transplant showed successful clinical finding except irregularity of mesial root surface after 14 months. It is conclued that transplantation of canine with $\frac{1}{2}{\sim}\frac{3}{4}$ root development provides a good chance of pulp survival, limited risk of root resorption and ensures sufficient final length, and is thus recommended.

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Autogenous Transplantation of Impacted teeth : Indication and Case Report (매복치 자가이식술의 적응증과 치험례)

  • Yu, Hyung-Seog;Kim, Tae-Gyun
    • The Journal of the Korean dental association
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    • v.38 no.1 s.368
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    • pp.22-29
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    • 2000
  • The purpose of this paper is to discuss the indication. treatment procedure. prognosos and complication of autogenous transplantation in treating impacted teeth of orthodontic patient. Autogenous transplantation is indicated, in cases of rejecting orthodontic treatment due to the visible orthodontic appliance, the relatively long treatment time, unfavorable tooth position for orthodontic repositioning, unrestorable advanced detal caries. advanced periodontitis and ankylosed tooth. Most process related to the decision of the prognosis is dependent on the careful surgical technique. In comparison to other orthodontic and surgical procedure, the application of the autotransplantation is limited, although its success rate is markedly increased today. Therefore we must we must pay attention to the treatment planning and cooperation with other specialties is needed.

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The Reconstruction with Extracorporeal Irradiated Autograft for Osteosarcoma of Extremities (사지 골육종에서 체외 방사선 조사를 이용한 재건술)

  • Kim, Jae-Do;Lee, Gun-Woo;Chung, So-Hak
    • The Journal of the Korean bone and joint tumor society
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    • v.16 no.1
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    • pp.1-7
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    • 2010
  • Purpose: With advances in various treatment modalities, limb salvage surgery has been commonly used in osteosarcoma of extremities. An alternative method for skeletal reconstruction is reimplantation of the tumor bearing bone following extracorporeal irradiation (ECI). We report the long-term results of ECI autograft in aspect of the oncological and functional outcomes, and complications. Materials and Methods: We retrospectively reviewed 31 osteosarcoma patients who underwent reconstruction with ECI between July 1995 and January 2006. There were 24 males and 7 females with a mean age of 24 (7-74 years) and a mean follow-up of 117 months (17-177 months). Twenty-five cases were reconstructed with ECI autograft, 6 cases with ECI autograft-prosthesis composite. The pathologic subtypes were conventional in 29 cases, periosteal in 1 case, and parosteal in 1 case. The most common location of tumor was distal femur (15 cases) followed by humerus (3), proximal fibula (3) and proximal tibia (3). Musculoskeletal Tumor Society (MSTS) score was used for functional evaluation. The overall survival rate, local recurrence, complications were analyzed. Results: The overall survival rate was 80.6% and the disease-free survival rate was 64.5%. Five patients died of distant metastasis. One patient required above-knee amputation due to local recurrence. All of them, twenty-three complications occurred, which included nonunion in 7 cases, deep infection in 5 cases, joint instability in 4 cases, metal failure in 2 cases, Limb-length discrepancy (LLD) in 2 cases, periprosthetic fracture in 1 case, epiphyseal collapse in 1, local recurrence in 1 case. The mean MSTS functional score was 62.5%. Conclusion: Extracorporeal irradiated autograft can be achieved relatively good result in aspect of oncological and functional aspect, but is needed to be additional research about occurring many complications. The reconstruction with ECI after intercalary or fragmentary resection is effective reconstruction in aspect of oncological and functional result, complications.

A Retrospective study of the Cumulative Survival Rate and change of peri-implant marginal bone around implants associated with maxillary sinus augmentation (상악동 골 이식술을 동반하여 식립된 임플란트의 변연골변화와 생존률에 관한 후향적 연구)

  • Ryu, Hwa-Suk;Kim, Sun-Jong;Park, Eun-Jin;Kim, Myung-Rae
    • The Journal of Korean Academy of Prosthodontics
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    • v.47 no.2
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    • pp.240-246
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    • 2009
  • Statement of problem: Insertion of endosseous implants in the atrophic maxilla is often complicated because of lack of supporting bone. Augmentation of the floor of the maxillary sinus with autogenous bone & bone substitute graft has been proven to be a reliable treatment modality, at least in the short term. The aim of this study is to evaluate the factors of implant survival rate associated with maxillary sinus lift with grafts. Material and methods: The sinus floor was augmented with bone grafts derived from modified Caldwell-luctechnique(71 subject, 93 sinus, 180 implants), the autogenous bone or autogenous+Bio-oss. Before implant installation the width and height of the alveolar crest were increased in the first stage procedure in 10 patients while in the other 61 patients augmentation and implant installation could be performed simultaneously width and height of the alveolar crest > 4 mm) or delayed installation. Results: In all case bone volume was sufficients for implant insertion. 14 of 180 inserted implants were lost during follow up and the healing period Patient received implant supported overdenture(5 patients) or fixed bridge(62 patients). Conclusion: Within the limit of the result of this study, we conclude that bone grafting of the floor of the maxillary sinus floor with bone for the insertion of implants might be a reliable treatment modality and the autogenous bone graft and delayed installation method might be the factors for good results.

The Changes of Patellofemoral Alignment after Anterior Cruciate Ligament Reconstruction (전방 십자 인대 재건술후 슬개-대퇴 관절 선열의 변화)

  • Hahn Sung-Ho;Yang Bo-Kyu;Yi Seung-Rim;Chung Shun-Wook;Kwon Gi-Doo
    • Journal of the Korean Arthroscopy Society
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    • v.4 no.2
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    • pp.128-133
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    • 2000
  • Purpose : To compare the changes of the patellar height, patellofemoral alignment and subjective symptom and to compare the effects of patellar tendon harvest after anterior cruciate ligament(ACL) reconstruction using autograft and allograft. Materials and Method : ACL reconstruction was performed on 87 patients who were followed up for minimum 1 year. The group I was 52 patients who were operated with bone-patellar tendon-bone autograft and the group II was 35 patients who were operated with bone-patellar tendon-bone allograft and achilles tendon allograft. At the time of follow-up, the authors evaluated the patellar height by Blackburne-Peel method, Merchant congruence angle, Lateral patellofemoral angle and subjective symptoms were assessed. Results : The patellar heights were significantly decreased from 0.86 preoperatively to 0.80 postoperatively in the group I and from 0.87 preoperatively to 0.83 postoperatively in the group II. There were no significant differences in the lateral patellofemoral angles between the both groups but in the Merchant congruence angle, significant differences were observed in the both groups, from$-1.43^{\circ}$ preoperatively to-$5.43^{\circ}$ postoperalively in the group I and from$-1.53^{\circ}$ preoperatively to$-3.65^{\circ}$ postoperatively in the group II. Conclusion : After ACL reconstruction, the patellofemoral alignment was changed and this kind of changes may be caused by multiple factorials such as harvest of autografts, ACL reconstruction itself, and quadriceps muscle atrophy.

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A clinical study on the alveolar crest height after secondary alveolar bone graft in the cleft alveolus patients : Preliminary Study (치조 파열 환자에 있어서 이차성 골이식술 후의 치조정 높이 변화에 관한 임상적 연구 : 예비적 연구)

  • Choi, Jin-Young;Kim, Myung-Jin;Kim, Su-Gon;Eune, Jung-Ju;Choung, Pill-Hoon
    • Korean Journal of Cleft Lip And Palate
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    • v.3 no.1
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    • pp.1-9
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    • 2000
  • 목적 : 치조파열 환자에 있어서 이차 치조골 이식술을 시행한 후 그 결과를 알아보고자 방사선학적 분석을 통하여 평가하였다. 본 연구의 목적은 수술전 골결손부 인접치아의 치조정 높이와 수술후 골결손부 인접치아의 치조정 높이를 근심측과 원심측에서 각각 측정함으로써 치조정의 높이가 과연 통계적으로 유의성 있게 증가하는지와 치조골 이식술의 성공률이 치조열의 너비와 상관관계가 있는지의 여부를 알아보는 것이다. 환자 및 방법 : 1991년부터 1999년까지 서울대학교병원 구강악안면외과에서 자가장골 채취 후 분쇄피질망사골 형태 또는 block 피질망상골 형태로 이식한 편측성 치조열을 가진 환자 중 최소한 6개월이 경과한 환자 56명을 연구대상으로 하였고 두 술자에 의해 시술되었다. 수술전 골결손부 인접치아의 치조정의 높이와 치조열의 너비 및 수술후 이식한 골의 높이와 절흔의 양은 치과용 파노라마 방사선 사진을 이용하여 측정하였고, 치조열의 너비는 모델이나 환자의 골결손부 근심치아의 근원심 폭경을 이용하여 환산하였다. 그리고 이식한 골의 높이와 절흔의 양을 1995년 Long이 제시한 방법으로 측정하여 술전의 측정치와 비교하였다. 결과 : 치조열의 너비는 평균 6.9mm(1.9mm-12.1mm) 였다. 근심에서의 치아는 골이식 당시 중절치가 52개(92.9%), 측절치가 4개(7.1%)였고, 49명의 환자에서 완전맹출을, 6명의 환자에서 부분맹출(측절치 2개, 중절치 4개)을 보였다. 원심측에서의 치아는 골이식 당시 측절치가 25개(44.6%), 견치가 29개(51.8%), 소구치가 2개(3.6%)였고, 완전 맹출이 32.1%, 부분 맹출이 57.2%, 미맹출이 10.7%로서 완전히 맹출하기 전에 골이식한 경우가 67.9%였다. 모든 환자에 있어서 bony bridge가 나타났고, 절흔이 인접치 아래로 연장되지 않았으며, 치조골 이식술 후 oronasal fistula를 보인 환자는 한 명도 없었으므로 성공률은 100%였다. 술후 근심측에서의 치조정의 높이는 근심측 치아 치근길이의 79%(평균), 원심측에서의 치조정의 높이는 원심측 치아 치근길이의 87%(평균)로서 통계적으로 유의성 있게 증가하였다. 결론: 이차 치조골 이식술을 시행한 후 치조정의 높이는 골결손부 근심측과 원심측에서 모두 유의성있게 증가하였고, 근심측에서보다 원심측에서 통계학적으로 더 유의성 있게 증가하였다. 치조열의 너비와 절흔의 양, 치조정의 높이 및 치조골이식 성공률과는 유의성 있는 관련성이 없었다.

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Autotransplantation of Ectopically Impacted Teeth : Two Case Reports (이소매복된 치아의 자가치아이식 증례)

  • Lim, Yuran;Kim, Jaehwan;Choi, Namki;Kim, Seonmi
    • Journal of the korean academy of Pediatric Dentistry
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    • v.44 no.1
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    • pp.108-115
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    • 2017
  • Numerous therapeutic approaches are available for impacted teeth, including orthodontic retraction, implantation, and autogenous tooth transplantation. Autotransplantation is a promising method, especially for juvenile patients, as it enables preservation of the function of the periodontal tissues, as well as continued alveolar bone growth. This report describes autotransplantation in two cases in which the tooth was fully-ectopically impacted. With case 1, an ectopically impacted premolar was extracted and transplanted in an upright position, and regenerative endodontic treatment was performed using a platelet-rich fibrin clot and mineral trioxide aggregate (MTA). With case 2, a calcifying odontogenic cyst with an impacted left mandibular second molar was treated by enucleation. The tooth was transplanted into the proper position 3 months after enucleation, and endodontic treatment was performed using MTA. In both cases, autotransplantation appeared to provide a simple and rapid treatment option for patients with ectopically impacted teeth. These cases demonstrate that autotransplantation of ectopically impacted teeth is a viable treatment option rather than implant placement or prosthesis, especially in juvenile patients.

AUTOTRANSPLANTATION OF A MALPOSITIONED MANDIBULAR SECOND PREMOLAR : A CASE REPORT (이소매복된 하악 제2소구치의 자가치아이식을 이용한 치험례)

  • Chung, Youn-Joo;Koong, Hwa-Soo;Choi, Sung-Chul;Kim, Kwang-Chul;Park, Jae-Hong
    • Journal of the korean academy of Pediatric Dentistry
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    • v.36 no.4
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    • pp.591-596
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    • 2009
  • In the case of the impacted teeth, the clinician has to consider development of tooth, site of impaction, eruption path, and cooperation of patient. Treatment options for the management of impacted teeth are separated into four categories: observation, intervention, orthodontic or surgical relocation and extraction. Autotransplantation may be defined as the transplantation of embedded, impacted or erupted teeth, from one site to another in the same individual into extraction site or surgically prepared sockets. Autotransplantation ensures preservation of natural tooth, induction of alveolar bone growth and root development, offers one of the fastest and most economically feasible means in the replacement of young patients' missing teeth. This case presents a malpositioned impacted mandibular premolar of an 11-year-old girl. It was thought that orthodontic traction was difficult because of its unfavorable impacted position. Therefore the tooth was treated by autotransplantation, we can observe good healing pattern during 12 months.

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Treatment of Postoperative Tarsal Tunnel Syndrome with Autogeneous Vein Wrapping Graft (수술 후 발생한 족근관 증후군의 자가 복재 정맥 이식술을 이용한 치료)

  • Kim, J-Young;Park, Hyun-Kyoo;Lee, Kyung-Tai;Young, Ki-Won;Jeong, Ju-Seon
    • Journal of Korean Foot and Ankle Society
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    • v.10 no.1
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    • pp.109-112
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    • 2006
  • Management of postoperative tarsal tunnel syndrome is a perplexing problem to the surgeons. Autogenous vein wrapping graft is a effective method to decompress the tarsal tunnel. We treated 2 cases of postoperative tarsal tunnel syndrome with autogenous saphenous vein wrapping graft technique, and could get good results. Autogenous vein wrapping graft seems to be a good technique for tarsal tunnel syndrome with severe adhesion, particularly after surgery, and postoperative nerve adhesion can be prevented.

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Autogenous Osteochondral Graft for Freiberg's Disease (A Case Report) (자가 골연골 이식술을 이용한 Freiberg 병의 치료(1예 보고))

  • Kim, Hyong-Nyun;Eom, Sang-Wha;Suh, Dong-Hyun;Park, Yong-Wook
    • Journal of Korean Foot and Ankle Society
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    • v.13 no.2
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    • pp.223-226
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    • 2009
  • Freiberg disease is a osteochondrosis of the lesser metatarsal heads. Various surgical treatment have been recommanded including joint debridement and metatarsal head reshaping, metatarsal dorsal wedge osteotomy, metatarsal head excision and joint arthroplasty. Autogenous osteochondral graft for the treatment of Freiberg disease is an effective restorative procedure that provides early range of motion exercise, weight bearing, and reduces other morbidity. We report a case of late stage Freiberg disease treated with arthrotomy, removal of loose body and autogenous osteochondral graft.

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