Localized pigmented villonodular synovitis is a monoarticular proliferative condition that may affect any joint but is frequently found in the knee. The locaiized form was less frequent than the diffuse one. The estimated frequency of localized pigmented villonodular synovitis among patients performed an arthroscopic procedure was known one case lor each 2,500 cases. Previous reports pointed that the lower recurrence rate after the arthroscopic excision for localized form. We also experienced a case of localized pigmented viilonodular synovitis located at the posterior compartment of the knee, so we report this case with review of literatures.
Humans ; Joints ; Knee* ; Recurrence ; Synovitis ; Synovitis, Pigmented Villonodular*

Anaphylactic deaths are frequently observed at autopsies. Since death associated with medical practice has become social concern, the identification of anaphylactic shock is an important part of forensic medicine. However, autopsy findings of anaphylactic shock are usually non-specific; therefore, the diagnosis of anaphylactic shock must be inferred from collecting data on the past history of the deceased, circumstances of death, and negative autopsy findings. The analysis of serum mast cell tryptase level is a well-known, useful ancillary test for the diagnosis of anaphylactic shock, but is not widely used in daily practice in Korea. We recently encountered 2 autopsy cases of anaphylactic shock and confirmed that analysis of serum mast cell tryptase level was useful for the diagnosis of anaphylactic shock. In this report, we present these 2 autopsy cases of anaphylactic shock, with literature review of the usefulness and limitations of serum mast cell tryptase analysis.
Anaphylaxis ; Autopsy ; Forensic Medicine ; Korea ; Mast Cells ; Tryptases

Background: The purpose of this study was to assess the reliability and validity of the 3-item version of the Work Engagement Scale (WES-3), which is based on the Job DemandsResources (JD-R) model and was used in the 5 th Korean Working Conditions Survey (KWCS). Methods: This study used data from the 5th KWCS (n = 50,205), which was conducted in 2017 with a sample of the Korean working population. The survey gathered comprehensive information on working conditions to define workforce changes and the quality of work and life. The reliability and internal consistency of the WES-3 were assessed using the corrected item-total correlation and Cronbach's alpha coefficient. Confirmatory factor analysis (CFA) was used to test the construct validity of work engagement. The convergent validity was assessed using the correlation with the WHO-5 well-being index. Correlations between work engagement and JD-R factors were also calculated. Results: The Cronbach's alpha for work engagement was 0.776, indicating acceptable internal consistency. The model comprising 3 work engagement and 2 burnout items showed an excellent fit (χ2 : 382.05, Tucker-Lewis index: 0.984, comparative fit index: 0.994, root mean square error of approximation: 0.043). The convergent validity was significant (correlation coefficient: 0.42). Correlations with burnout and job demands were negligible, whereas correlations with job resources and job satisfaction were weakly positive. Conclusions The results of our study confirm that the WES-3 has acceptable reliability and validity.

Background: The purpose of this study was to assess the reliability and validity of the 3-item version of the Work Engagement Scale (WES-3), which is based on the Job DemandsResources (JD-R) model and was used in the 5 th Korean Working Conditions Survey (KWCS). Methods: This study used data from the 5th KWCS (n = 50,205), which was conducted in 2017 with a sample of the Korean working population. The survey gathered comprehensive information on working conditions to define workforce changes and the quality of work and life. The reliability and internal consistency of the WES-3 were assessed using the corrected item-total correlation and Cronbach's alpha coefficient. Confirmatory factor analysis (CFA) was used to test the construct validity of work engagement. The convergent validity was assessed using the correlation with the WHO-5 well-being index. Correlations between work engagement and JD-R factors were also calculated. Results: The Cronbach's alpha for work engagement was 0.776, indicating acceptable internal consistency. The model comprising 3 work engagement and 2 burnout items showed an excellent fit (χ2 : 382.05, Tucker-Lewis index: 0.984, comparative fit index: 0.994, root mean square error of approximation: 0.043). The convergent validity was significant (correlation coefficient: 0.42). Correlations with burnout and job demands were negligible, whereas correlations with job resources and job satisfaction were weakly positive. Conclusions The results of our study confirm that the WES-3 has acceptable reliability and validity.

PURPOSE: This retrospective study was designed to evaluate the treatment results of chronic Achilles tendon rupture by Lindholm method. MATERIALS AND METHODS:Between 2002 and 2006, we performed the reconstruction of the Achilles tendon by using of the gatrocnemius-sloeus fascia known as Lindholm method. Ten cases of ten patients were enrolled in this study (8 men and 2 women). The mean age of the patients at the time of operation was 49 years (range, 32~66 years). The mean follow-up duration was 15.2 months (range, 12~19 months). The retrospective review of the clinical history, physical examination, the American Orthopedic Foot and Ankle Society (AOFAS) score were conducted. RESULTS:The mean AOFAS score before surgery was 74.10+/-2.56 and that of the latest follow-up was 90.60+/-5.72. The excellent results were six and good results were four patients. Eight patients were normal triceps power and the others were good. The average of heel to floor distance was 4.5 mm less in the operated legs than the contralateral ones in each patient, but there was no significant difference (p>005). The average of calf muscle circumference in the mid-leg was 7.5 mm less in the operated legs than the contralateral ones and there was significant difference (p<0.05). The active range of motion of the ankles, mean plantarflexion was 40 degrees and dorsiflexion was 16.8 degrees in operated side. The contralateral side was 43 degrees in plantarflexion and 19 degrees in dorsiflexion. No case showed rerupture of the reconstructed Achilles tendon. One patient had the superficial wound infection which was treated successfully by antibiotic therapy. CONCLUSION: It was suggested that the overall results of Lindholm method for the chronic Achilles tendon rupture indicated satisfactory outcomes
Achilles Tendon ; Animals ; Ankle ; Fascia ; Floors and Floorcoverings ; Follow-Up Studies ; Foot ; Heel ; Humans ; Leg ; Male ; Muscles ; Orthopedics ; Physical Examination ; Range of Motion, Articular ; Retrospective Studies ; Rupture ; Wound Infection

The fracture of zygomatic arch is one of the common fracture of the facial bone and commonly reduced by Gillies or Dingman method However, if the reduced bone segments are unstable after reduction, they tend to be displaced by mastication or unintentional external forces. Though many techniques have been introduced for the treatment of the unstable zygomatic arch fracture, all of those techniques have their own shortcomings. We devised a new fixation method to prevent the displacement of the reduced zygomatic arch segments with 0.047 inch K-wire under the fluoroscope. After reduction of zygomatic arch using Gillies method under the fluoroscope, a thin K-ire was inserted along the undersurface of the zygomatic arch through zygoma body for rigid fixation. The inserted K-wire was removed in 4 weeks. In ten cases, good cosmetic and functional results were observed without complications such as infection, facial nerve injury, displacement of fractured segments, and operative scar during the follow up period of 3 months. However, while the pin was being inserted, patients complained discomfort on their cheeks. This technique may be an available method to prevent the displacement of the reduced zygomatic arch and to obtain the rigid fixation.
Cheek ; Cicatrix ; Facial Bones ; Facial Nerve Injuries ; Follow-Up Studies ; Humans ; Mastication ; Zygoma*

'Duplication of the middle cerebral artery' is a rere vascular anomaly of the brain. The authors experienced a case of duplication of the middle cerebral artery in a patient with a posterior communicating artery aneurysm. It was demonstrated by angiography and confirmed at surgery. The neck of aneurysm was successfully clipped. Postoperative course was uneventful.
Aneurysm ; Angiography ; Brain ; Humans ; Intracranial Aneurysm ; Middle Cerebral Artery* ; Neck

Basal cell carcinomas usually arise from the epidermis and show some epidermal connections. It is very unusual that basal celi carcinomas occur as subderrnal mass without epidermal connections. A 51 year-old female h;d an asymptomatic skin colored indurated plaque with linear old scar on the left side of nose fcr about 20 years. She had had a tumor that supposed to be a epidermal cyst, on the same site and the lesion was excised about 20 years ago. We performed the punch biopsy on her first visit which revealed hypertrophic scar. She was treated with intralesional injection of triamcinolone acetonide to reduce the size of hypertrophic scar. However, the lesion had not been reduced. She underwent the surgery to remove the scar at plastic surgery and the excisional biopsy showed a subdermal basal cell carcinoma. We recommend that the newly developed skin tumor in the pre-excised region should be required excisional biopsy instead of punch and close observation
Biopsy ; Carcinoma, Basal Cell* ; Cicatrix ; Cicatrix, Hypertrophic ; Epidermal Cyst ; Epidermis ; Female ; Humans ; Injections, Intralesional ; Middle Aged ; Nose ; Skin ; Surgery, Plastic ; Triamcinolone Acetonide

Prosthetic valve endocarditis(PVE) is not infrequent and one of the serious complications of cardiac valve replacement despite advances in antimicrobial therapy, diagnostic techniquens and surgical procedures. Although the incidence of PVE may be declining, the absolute number of cases of this infection is increasing. In patients with a prosthetic valve, fever, a regurgitant heart murmur, peripheral manifestations of infective endocarditis and postitive blood cultures, the diagnosis of PVE is evident. We have reviewed our experience with 13 patients with PVE from October 1976 through August 1983. During this period valve replacements were performed in 686 patients, with an infection rate of 1.9%. PVE currently accounts for approximately 14% of the total number of cases of infective endocarditis seen at Seoul national University Hospital. PVE occurred more often after multiple valve replacement than after replacement of single valve alone. Blood cultures were positive in 69% cases of PVE. Systemic emboli could be seen in 54% of patients with PVE and overall mortality was about 23%.
Diagnosis ; Endocarditis* ; Fever ; Heart Murmurs ; Heart Valves ; Humans ; Incidence ; Mortality ; Seoul

Erythema elevatum diutinum(EED) is a rare chronic skin disease characterized by red, purple, and yellowish papules, plaques, and nodules that are usually distributed acrally and symmetrically over extensor surface. It is characterized histologically by a leukocytoclastic vasculitis. Although no treatment has shown a complete response, dapsone is reported to be effective to EED. We report a rare severe case of EED with good response to dapsone treatment.
Dapsone ; Erythema* ; Skin Diseases ; Vasculitis