No abstract available.
Therapeutic Equivalency*

We report the results of the clinical and histologic and radiologic findings of the 17 patients who visited our hospital for the removal of the breast implants. Their mean ages were 45.9 and they visited our hospital 11.4 years after their operation of the breast implantation. In the 8 cases of the 17 patients, the contractures were seen and masses were palpated in the 4 cases. We also could find 1 case of the infection and 1 case of the abscess. There were the cases of the granuloma, siliconoma, calcification too. We find the radiologic examination before the removal of the implants in the 11 cases and could find the finding of rupture at the 9 cases (14 implants) but we confirmed that the number of the ruptured implants were 7 postoperatively. We reinserted new implants in the 12 cases and used saline filled textured implants. the number of the patients who want to remove the silicone gel implants is increasing with the reports of the doubt on the safety of the silicone gel. But there were on clear evidences of harmful effects of the silicone gel at now. We have to study more and need more experiences to used the more exact information to the patients.
Abscess ; Breast Implantation ; Breast Implants ; Breast* ; Contracture ; Granuloma ; Humans ; Rupture ; Silicone Gels*

The incidence of primary lung cancer is increasing in our country. This presentation is an attempt to correlate a useful diagnosis with radiological findings of primary lung cancer. Histologically proved 210 cases of primary lung cancer are as follow: Epidermoid Ca. 65%, Adeno Ca. 18%, Small cell Ca. 9.5%, Large cell Ca. 2%, Unclassified Ca. 3.3%, Mucoepidermoid Ca. 2.4%, Mixed Ca. 0.5%. 3. In smoking history; 91% of epidermoid Ca, 17%of small cell Ca. 30% of adeno Ca. has smoking history. 4. In mass size; Average diameter of mass was most was5.3cm. Hilar mass was seen in 48 cases. Hilar mass was most frequent finding in small cell Ca. and the peripheral mass in adeno Ca. 5. Cavitary lung Ca. was 26 cases (12.4%) and most cases had relative thick wall and its mean thickness was 3.6mm. 6. Coexistence of pulmonary tuberculosis and lung cancer was 22 cases (10.5%), and most common in epidermoid cell Ca. as 16 cases. 7. Other findings include metastasis to lymph node, bone and other organ, and pleural effusion.
Diagnosis ; Incidence ; Lung Neoplasms ; Lung ; Lymph Nodes ; Neoplasm Metastasis ; Pleural Effusion ; Smoke ; Smoking ; Tuberculosis, Pulmonary

Most obviuos will be the several anatomic differences between the proximal femur of the child and the adult. Fractures of the femoral neck in the children are extremely rsre and usually are the result of severe trauma in 80% of the cases. This accounts for the high frequency of serious associated injuries. In this injury the vascular anatomy changing with age, continuing growth potential and the effect of deforming forces play critical roles in high complication rate and these make treatment difficult. But still any secure guidelines for the treatment of this injury are not established and this is a field which requires more active research and further progress in future. 26 cases treated at Paik Hospital from Jan. 1979 to June 1988 were analyzed in clinical and radiological aspect and the following results were obtained. 1. The commonest type was Cervicotrochanteric fracture in 13 cases(50%),displaced one 21 cases. 2. In Transepiphyseal, Transcervical and Cervicotrochanteric fracture by early reduction and internal fixation, and in Intertrochanteric fracture by conservative treatment we gained satisfactory results. 3. We experienced 2 cases of coxa vara in nonthreaded pin used cases, 4 cases of premature epiphseal closure and 4 cases of avascular necrosis in threaded pin used ones. 4. Complications were developed in 13 cases (50%). These were 5 cases of coxa vara(19.2%) 4 cases of premature epiphyseal closure (15.4%) and 4 cases of avascul necrosis (15.4%). 5. Avascykar necrosis was developed in displaced fracture of Transcervical or Cervico- trochanteric fracture beyond postoperative 1 year. So. we recommend periodic long follow up for evaluation of avascular necrosis.
Adult ; Child ; Clinical Study ; Coxa Vara ; Femur ; Femur Neck ; Follow-Up Studies ; Hip ; Humans ; Necrosis

The coronary artery fistula from right coronary artery to left ventricle is a rare disease among coronary artery anomaly. We experienced three cases of rare coronary fistula and report with literature review. Although symptoms of coronary artery fistula are associated with arteriovenous shunt and coronary steal phenomenon, many cases are asymptomatic. In this report, all patients had no symptom. but incidental murmur was noted (two are continuous, one is diastolic rumbling). The diagnosis was made by transthoracic or transesophageal echocardiogram and selective coronary angiography. Because patients were relatively young and the diameter of dilated coronary artery were huge, we perfomed operation on three patients.
Coronary Angiography ; Coronary Vessels* ; Diagnosis ; Fistula* ; Heart Ventricles* ; Humans ; Rare Diseases

No abstract available.
Peritoneal Dialysis, Continuous Ambulatory* ; Pharmacokinetics* ; Renal Dialysis*

No abstract available.
Calcium Signaling/physiology* ; Cell Polarity/physiology* ; Epithelial Cells/physiology* ; Epithelial Cells/cytology*

STUDY DESIGN: In-vitro biomechanical investigation. PURPOSE: To evaluate the biomechanical effects of the degeneration of the biodegradable cervical plates developed for anterior cervical discectomy and fusion (ACDF) on fusion and adjacent levels. OVERVIEW OF LITERATURE: Biodegradable implants have been recently introduced for cervical spine surgery. However, their effectiveness and safety remains unclear. METHODS: A linear three-dimensional finite element (FE) model of the lower cervical spine, comprising the C4–C6 vertebrae was developed using computed tomography images of a 46-year-old woman. The model was validated by comparison with previous reports. Four models of ACDF were analyzed and compared: (1) a titanium plate and bone block (Tita), (2) strong biodegradable plate and bone block (PLA-4G) that represents the early state of the biodegradable plate with full strength, (3) weak biodegradable plate and bone block (PLA-1G) that represents the late state of the biodegradable plate with decreased strength, and (4) stand-alone bone block (Bloc). FE analysis was performed to investigate the relative motion and intervertebral disc stress at the surgical (C5–C6 segment) and adjacent (C4–C5 segment) levels. RESULTS: The Tita and PLA-4G models were superior to the other models in terms of higher segment stiffness, smaller relative motion, and lower bone stress at the surgical level. However, the maximal von Mises stress at the intervertebral disc at the adjacent level was significantly higher in the Tita and PLA-4G models than in the other models. The relative motion at the adjacent level was significantly lower in the PLA-1G and Bloc models than in the other models. CONCLUSIONS: The use of biodegradable plates will enhance spinal fusion in the initial stronger period and prevent adjacent segment degeneration in the later, weaker period.
Absorbable Implants ; Diskectomy ; Female ; Finite Element Analysis ; Humans ; Intervertebral Disc ; Intervertebral Disc Degeneration ; Middle Aged ; Spinal Fusion ; Spine ; Titanium

OBJECTIVE: Lumbar discectomy is an effective treatment for lumbar disc herniation (LDH); however, up to 2–18% of patients with LDH have experienced recurrent disc herniation. The purpose of this study was to evaluate the efficacy of a novel annular closure device (ACD) for preventing LDH recurrence and re-operation compared with that of conventional lumbar discectomy (CLD).METHODS: In this prospective randomized controlled trial, we compared CLD with discectomy utilizing the Barricaid® (Intrinsic Therapeutics, Inc., Woburn, MA, USA) ACD. Primary radiologic outcomes included disc height, percentage of preoperative disc height maintained, and re-herniation rates. Additional clinical outcomes included visual analog scale (VAS) scores for back and leg pain, Oswestry Disability Index (ODI) scores, and 12-item short-form health survey (SF-12) quality of life scores. Outcomes were measured at preoperation and at 1 week, 1, 3, 6, 12, and 24 months postoperation.RESULTS: Sixty patients (30 CLD, 30 ACD) were enrolled in this study. At 24-month follow-up, the disc height in the ACD group was significantly greater than that in the CLD group (11.4±1.5 vs. 10.2±1.2 mm, p=0.006). Re-herniation occurred in one patient in the ACD group versus six patients in the CLD group (χ²=4.04, p=0.044). Back and leg VAS scores, ODI scores, and SF-12 scores improved significantly in both groups compared with preoperative scores in the first 7 days following surgery and remained at significantly improved levels at a 24-month follow-up. However, no statistical difference was found between the two groups.CONCLUSION: Lumbar discectomy with the Barricaid® (Intrinsic Therapeutics, Inc.) ACD is more effective at maintaining disc height and preventing re-herniation compared with conventional discectomy. Our results suggest that adoption of ACD in lumbar discectomy can help improve the treatment outcome.
Diskectomy ; Follow-Up Studies ; Health Surveys ; Humans ; Intervertebral Disc Displacement ; Leg ; Prospective Studies ; Quality of Life ; Recurrence ; Treatment Outcome ; Visual Analog Scale

OBJECTIVE: To determine whether the outcomes of percutaneous epidural neuroplasty (PEN) are influenced by the type of lumbar disc herniation (LDH) and evaluate the effectiveness of PEN in patients with single-level LDH.METHODS: This study included 430 consecutive patients with single-level LDH who underwent PEN. Before treatment, the LDH type was categorized as bulging, protrusion, extrusion, and sequestration, while Pfirrmann grades were assigned according to imaging findings. Visual analog scale (VAS) scores for back and leg pain and success rates (Odom’s criteria) were assessed at 1, 3, 6, and 12 months after treatment.RESULTS: The mean preoperative VAS scores for back and leg pain were 6.90 and 4.23, respectively; these decreased after PEN as follows : 2.25 and 1.45, respectively, at 1 month; 2.61 and 1.68, respectively, at 3 months; 2.28 and 1.48, respectively, at 6 months; and 2.88 and 1.48, respectively, at 12 months (p<0.001). The decrease in VAS scores for leg pain was significantly greater in the extrusion and sequestration groups than in the other two groups (p<0.05); there were no other significant differences among groups. More than 70% patients exhibited good or excellent 12-month outcomes according to Odom’s criteria. Subsequent surgery was required for 59 patients (13.7%), with a significantly higher rate in the extrusion (25.0%) and sequestration (30.0%) groups than in the bulging (7.3%) and protrusion (13.8%) groups (p<0.05). Nevertheless, subsequent surgery was not required for >70% patients with extrusion or sequestration. Patients with Pfirrmann grades 1–3 (14.0–21.5%) showed a significantly higher rate of subsequent surgery than those with Pfirrmann grade 0 (4.9%; p<0.05).CONCLUSION: Our findings suggest that PEN is an effective treatment for back and leg pain caused by single-level LDH, with the outcomes remaining unaffected by the LDH type.
Follow-Up Studies ; Humans ; Intervertebral Disc Displacement ; Leg ; Low Back Pain ; Treatment Outcome ; Visual Analog Scale