1.Experience of Microsurgery Using Dorsalis Pedis Artery
Soo Kyoon RAH ; Chang Uk CHOI ; Hak Hyun KIM ; Wan Surk CHOI ; Byung Chun JEON
The Journal of the Korean Orthopaedic Association 1981;16(3):731-738
Since the introduction of surgical microscope in microvesael surgery by Jacobson and Suarez in 1960, many surgeons have succeeded replantation, transplantation of composite segment of tissues so called free fiap-free bone graft and toe to hand transfer. McCraw & Furlow reported successfully transfered dorsal foot flap using dorsalis pedis artery in 1975 and Cobett transfered great toe to band for reconstruction of the amputated thunb. The authors experienced six cases of microsurgery using dorsalis pedis artery durig the recent two years in the department of Orthopaedic surgery of Soon Chun Hyang College and results in this paper. 1. Four cases out of six were dorsalis pedis free flap, one case was second toe to thumb and tbe other one was reconstruction of an amputated thumb in one stage using iliac bone graft and dorsalis pedis flap. 2. One case out of four cases of dorsalis pedis free flap was performed for reconstruction of contracted first web and the other cases were performed for foot. 3. Five cases out of six were successfully transfeed, one case which was toe to thumb was failed. The cause. of fail was probably due to post-operative hematoma. 4. Composite tissue using dorsalis pedis artery is one of the good donor site for composite tissue transfer for not only skin defect and scar contracture of the hand and foot but also reconstruction of the amputated fingers because it has several advantages; an acceptable thickness, a constant arterial supply, venous drainage through the saphenous system, and constant innervation through the terminal branches of the superficial and deep peroneal nerve.
Arteries
;
Cicatrix
;
Contracture
;
Drainage
;
Fingers
;
Foot
;
Free Tissue Flaps
;
Hand
;
Hematoma
;
Humans
;
Microsurgery
;
Peroneal Nerve
;
Replantation
;
Skin
;
Surgeons
;
Thumb
;
Tissue Donors
;
Toes
;
Transplants
2.Fine Needle Aspiration Cytology of Eccrine Acrospiroma of the Breast: Report of a Case Misdiagnosed as Ductal Carcinoma.
Young Ok KIM ; Chang Wan JEON ; Hee Kyung CHANG
Korean Journal of Cytopathology 2005;16(1):31-35
Eccrine acrospiroma is a rare adnexal tumor of the skin. When the clinical presentation is that of a breast lump, diagnosis can be difficult. Also, most of the cytopathologists are not familiar with the cytologic features of this tumor and this is responsible for diagnostic pitfalls. We experienced a case of eccrine acrospiroma of the right breast in a 41-year-old female, misdiagnosed by fine needle aspiration cytology(FNAC). FNAC was characterized by tight clusters or sheets of small round cells, polygonal cells, and spindle cells and tubule like structures within clusters. Myoepithelial cells were not noted in the clusters. The diagnosis of eccrine acrospiroma was confirmed by histology.
Acrospiroma*
;
Adult
;
Biopsy, Fine-Needle*
;
Breast*
;
Carcinoma, Ductal*
;
Diagnosis
;
Female
;
Humans
;
Skin
3.Chondrosarcoma Arising from Benign Bone Tumor due to Malignant Transformation.
Wan hyeong CHO ; Won Seok SONG ; Chang Bae KONG ; Yun Suk HONG ; Jung Dong LEE ; Dae Geun JEON
The Journal of the Korean Bone and Joint Tumor Society 2011;17(1):17-22
PURPOSE: We analyzed the oncological outcome and prognostic factor of the chondrosarcoma arising from benign bone tumor due to malignant transformation. MATERIALS AND METHODS: From April 1986 to April 2009, 18 cases were considered eligible. We analyzed retrospectively the patient's characteristics and prognostic factors that affect to the local recurrence and distant metastasis. RESULTS: As classified by primary benign bone tumor, 4 cases were solitary osteochondroma, 11 cases were multiple osteochondromatosis and 3 cases were multiple enchondromatosis. The mean follow-up period was 85 months. The 5-year disease free survival rate of 18 patients was 85.9%. Their overall MSTS score was 25.2 (84%). There were local recurrence in 3 cases and no distant metastasis. We found that tumor location and surgical margin affected to the prognosis significantly. CONCLUSION: In secondary chondrosarcoma patients, the prognosis was good relatively and tumor location and surgical margin are important prognosis factor.
Chondrosarcoma
;
Disease-Free Survival
;
Enchondromatosis
;
Follow-Up Studies
;
Humans
;
Neoplasm Metastasis
;
Osteochondroma
;
Osteochondromatosis
;
Prognosis
;
Recurrence
;
Retrospective Studies
4.Clinicopathological Factors Associated with Remnant or Regrowth of Benign Breast Tumor after Previous Vacuum-Assisted Core Biopsy.
Won Gong CHOO ; Chang Wan JEON ; Dong Won RYU
Journal of Breast Disease 2017;5(1):23-27
PURPOSE: We sometimes encounter remnant or regrowth of benign breast tumors diagnosed as Breast Imaging-Reporting and Data System (BI-RADS) C4 in follow-up breast ultrasound after previous vacuum-assisted core biopsy (VACB). We aimed to evaluate the factors that influence remnant or regrowth tumors at post-VACB site or adjacent tissue. METHODS: From January 2010 to December 2015, we analyzed 647 cases on follow-up. Patients were divided into two groups; group A was defined as patients without recurrent masses on breast ultrasonography during the follow-up period, and group B was defined as those with recurrent masses diagnosed as more than BI-RADS C4 on ultrasonography. RESULTS: Fibrocystic changes, proliferative disease without atypia, intraductal papilloma, apocrine cell change, atypical ductal hyperplasia, sclerosing adenosis, and radial scars were observed in 89.5% (n=579), 15.9% (n=103), 15.3% (n=99), 5.3% (n=34), 5.7% (n=37), 7.6% (n=49), and 6.3% (n=41) of patients, respectively. During the follow-up period, 85 patients were diagnosed as group B. Group B was significantly associated with proliferative diseases without atypia, sclerosing adenosis, and microcalcifications compared to group A (p=0.008, p=0.007, and p=0.001, respectively). After adjustment for confounding variables, group B was more significantly associated with proliferative breast diseases than group A (hazard ratio [HR], 0.558; 95% confidence interval [CI], 0.343–0.907; p=0.018). Furthermore, group B was more significantly associated with intraductal papilloma (HR, 0.571; 95% CI, 0.342–0.953; p=0.032). CONCLUSION: Previously diagnosed proliferative diseases without atypia or microcalcification at first VACB were significantly associated with recurrent breast tumor. Intraductal papilloma was also significantly associated with tumor regrowth.
Biopsy*
;
Breast Diseases
;
Breast Neoplasms*
;
Breast*
;
Cicatrix
;
Confounding Factors (Epidemiology)
;
Follow-Up Studies
;
Humans
;
Hyperplasia
;
Information Systems
;
Papilloma, Intraductal
;
Recurrence
;
Ultrasonography
;
Ultrasonography, Mammary
5.Clinical Results Comparing Transtibial Technique and Outside in Technique in Single Bundle Anterior Cruciate Ligament Reconstruction
Seung Suk SEO ; Chang Wan KIM ; Jeon Gyo KIM ; Sung Yub JIN
The Journal of Korean Knee Society 2013;25(3):133-140
PURPOSE: To compare the clinical results of single-bundle anterior cruciate ligament (ACL) reconstruction using the conventional transtibial technique and the anatomical outside-in technique for femoral tunneling. MATERIALS AND METHODS: From 2007 to 2011, 89 patients who received ACL reconstruction were followed for > or =1 year were enrolled in the study. The conventional transtibial technique was used in 41 patients and the outside-in technique, in 48 patients. Femoral tunnel angle measurement and three-dimensional computed tomography (3D CT) were used for radiologic assessment of the location of femoral tunnel and Lysholm score and other tests were used for clinical assessment. RESULTS: Both techniques did not reveal statistical differences in the clinical assessment. However, in International Knee Documentation Committee subjective knee evaluation, the sum of two questionnaire items regarding instability showed a statistically significant difference (p=0.01). In the pivot shift test, the anatomical outside-in technique showed outstanding rotational stability over the transtibial technique (p=0.04). The mean femoral tunnel inclination in coronal plane were 69.2degrees and 30.3degrees, respectively, for both techniques, and 21.6degrees and 50.8degrees, respectively in sagittal plane, showing statistically significant differences on simple radiography (p=0.04, 0.05). A 3D CT was performed in 17 patients with the conventional transtibial technique and 25 patients with the outside-in technique. Coefficients of variation were 0.33 and 0.13, respectively, from dorsal border of the condyle and 0.67 and 0.24, respectively, from the roof of intercondylar notch. CONCLUSIONS: Femoral tunnels created with the outside-in technique have superior knee joint rotational stability compare to the transtibial technique. Therefore, the outside-in technique could be considered as a valuable technique in single-bundle ACL reconstruction.
Anterior Cruciate Ligament
;
Anterior Cruciate Ligament Reconstruction
;
Humans
;
Knee
;
Knee Joint
;
Surveys and Questionnaires
6.Case Review of Small Cell Carcinoma of the Urinary Bladder in Korea.
Chang Soo PARK ; Tae Kyung JEON ; Wan LEE ; Moon Kee CHUNG
Korean Journal of Urology 2007;48(12):1315-1318
Although it is known that small cell carcinoma most commonly occurs in the lung, it may also originate outside the thorax. Primary extrapulmonary small cell carcinoma has been reported in various organs, including the pharynx, larynx, esophagus, stomach, small intestine, salivary glands, pancreas, skin, breast, cervix, vagina, kidneys, ureter, prostate and urinary bladder. Primary pure small cell neuroendocrine carcinoma of the bladder is a rare condition. It is an aggressive tumor with an average five-year survival rate of less than 10%, as cited by multiple case reports. The mean age of these patients is 67.8 years. The prognosis of small cell carcinoma of the urinary bladder is poor because its behavior is more aggressive than bladder transitional cell carcinoma. We review here 4 cases with small cell carcinoma of the urinary bladder, including our own patient who we treated.
Breast
;
Carcinoma, Neuroendocrine
;
Carcinoma, Small Cell*
;
Carcinoma, Transitional Cell
;
Cervix Uteri
;
Esophagus
;
Female
;
Humans
;
Intestine, Small
;
Kidney
;
Korea*
;
Larynx
;
Lung
;
Pancreas
;
Pharynx
;
Prognosis
;
Prostate
;
Salivary Glands
;
Skin
;
Stomach
;
Survival Rate
;
Thorax
;
Ureter
;
Urinary Bladder*
;
Vagina
7.Combined effects of rhBMP-2 and rhVEGF coated onto implants on osseointegration: pilot study.
Jung Bo HUH ; Mi Jung YUN ; Chang Mo JEONG ; Sang Wan SHIN ; Young Chan JEON
The Journal of Korean Academy of Prosthodontics 2013;51(2):82-89
PURPOSE: The present study is aimed to evaluate the combined effect of recombinant human bone morphogenetic protein 2 (rhBMP-2) and recombinant human vascular endothelial growth factor (rhVEGF) coated onto anodized implants on osseointeration. MATERIALS AND METHODS: Six New Zealand white rabbit were used in this study. Each animal received 4 implants that were either coated with rhBMP-2 and rhVEGF (Study group) or anodized implant (Control group) in both tibia. This was performed using a randomized split-mouth design. A total 24 implants were used. The implant stability quotient (ISQ) value using resonance frequency analyser and removal torque (RTQ) measurement were investigated at 2 and 8 weeks. The t-test was used for statistical analysis (alpha=.05). RESULTS: Control and study group showed good osseointegration at 8 weeks. The ISQ and RTQ values of study group were significant compared with the control group at 8 weeks (P<.05). However, No statistical significance was observed at 2 weeks (P>.05). CONCLUSION: It was concluded that rhBMP-2 with rhVEGF coated onto anodized implants can induce better osseointegration at late healing period.
Animals
;
Bone Morphogenetic Protein 2
;
Humans
;
New Zealand
;
Osseointegration
;
Pilot Projects
;
Tibia
;
Torque
;
Vascular Endothelial Growth Factor A
8.Current concept on the operative treatment for degenerative cervical disc disease.
Taek Soo JEON ; Han CHANG ; Byung Wan CHOI
Journal of the Korean Medical Association 2011;54(9):941-950
Degenerative changes in the cervical spinal column are common in the adult population. Although most patients respond well to initial nonsurgical management, those who continue to have symptoms or patients with clinically evident myelopathy are candidates for surgical intervention. The objective of this article is to review and discuss the surgical treatment for degenerative cervical spine disease. Anterior cervical spine surgery is commonly used to treat numerous pathologic entities and is expected to increase with the development of surgical techniques and instruments. Autogenous tricortical iliac crest struts are the best option for anterior fusion, but they are associated with donor site morbidity. Equivalent fusion rates have been reported after allografting and autografting, combined with the use of anterior plates. Artificial disc replacement, one of the emerging motion-sparing technologies, is currently used and has shown excellent results. However, longer follow-up is needed to determine whether these devices can function well over time. Surgical treatments in degenerative cervical disease have shown excellent results. Appropriate methods that take into account the pathologic status of the patient and the surgeon's surgical experience can prevent complications and lead to excellent surgical outcomes.
Adult
;
Humans
;
Radiculopathy
;
Spinal Cord Diseases
;
Spine
;
Tissue Donors
;
Total Disc Replacement
;
Transplantation, Autologous
;
Transplantation, Homologous
9.Carcinoid Tumor Arising within a Tailgut Cyst: A Case Report.
Chul Min LEE ; Seung Hyun LEE ; Chang Wan JEON ; Byung Kwon AHN ; Sung Uhn BAEK
Journal of the Korean Society of Coloproctology 2007;23(1):65-67
Tailgut cysts are rare congenital lesions. They are believed to develop from remnants of the embryonic hindgut. Malignancy in tailgut cyst is extremely unusual. We experienced a case of a carcinoid tumor arising within a tailgut cyst at the presacral space. A 40-year-old woman was admitted for acute anal pain. Digital rectal examination revealed a 2-cm-sized submucosal tumor in the posterior midline rectum 4 cm above the anal verge. On sigmoidoscopic examination, the overlying rectal mucosa seemed to be intact. We performed a transanal incisional biopsy. The pathological diagnosis of the tumor biopsy revealed a malignant neuroendocrine tumor. The patient underwent an abdominoperineal resection. The tumor proved to be mutilocular cysts with a solid component. The cysts were diagnosed as tailgut cysts that were lined by a variety of epithelial types, including inner columnar cells, outer cuboidal cells, and transitional cells. The solid component in the cysts was confirmed as a carcinoid tumor on microscopic examination. Six months after the operation, she was found to have liver and brain metastases.
Adult
;
Biopsy
;
Brain
;
Carcinoid Tumor*
;
Diagnosis
;
Digital Rectal Examination
;
Female
;
Humans
;
Liver
;
Mucous Membrane
;
Neoplasm Metastasis
;
Neuroendocrine Tumors
;
Rectum
10.Clinical Outcome of Parosteal Osteosarcoma.
Won Seok SONG ; Dae Geun JEON ; Wan Hyeong CHO ; Chang Bae KONG ; Sang Hyun CHO ; Kwang Ryul LEE ; Soo Yong LEE
The Journal of the Korean Bone and Joint Tumor Society 2013;19(1):20-27
PURPOSE: The purpose of this study was to evaluate the oncologic outcomes of parosteal osteosarcoma (POS) and to ascertain the fates of patients after local recurrence (LR). MATERIALS AND METHODS: The authors retrospectively reviewed 22 POS patients with an average follow-up of 114 months (range: 36-235 months). Seven of the 22 patients were referred after LR. There were 17 Stage IB and 5 Stage IIB (G2, 2; dedifferentiation, 3). Tumors were located in the femur (11) and in other locations (11). Initial surgical margins were wide in 10, marginal in 5, and intralesional in 7. Correlations between clinico-pathologic variables and LR and clinical courses after LR were evaluated. RESULTS: The 10-year overall survival rate was 85.7%. Three (14%) patients developed distant metastasis and all of them succumbed to the disease. Nine (41%) patients developed LR. Tumor location, resection type, and surgical margin were found to be correlated with LR. At final follow-up, 7 of the 9 patients that experienced local failure achieved no evidence of disease. CONCLUSION: A substantial risk of misdiagnosis exists, especially for POS in other than a femoral location. Recurrent tumor re-excision is possible in most cases; however, patients with an aggressive recurrence pattern deserve special attention.
Diagnostic Errors
;
Femur
;
Follow-Up Studies
;
Humans
;
Neoplasm Metastasis
;
Osteosarcoma
;
Recurrence
;
Retrospective Studies
;
Survival Rate