Epidemiology of Infectious Keratitis(II): A Multi-center Study

To identify risk factors and causative organisms, and to evaluate clinical manifestations, methods and results of treatment in infectious keratitis, an epidemiological study was performed prospectively under the identical protocol from April 1995 to March 2000.Logistic regression analysis was used to evaluate possible risk factors. The 1474 cases of infectious keratitis reported from 22 hospitals were studied. Five hundred forty-four organisms(442 bacteria, 82 fungi, 20 A c a n t h a m o e b a)were detected in 1320 eyes with infectious keratitis excluding 154 herpetic keratitis. The Pseudomonas aeruginosa was the most common organism in bacterial keratitis, and Fusariumspp. was the major isolate in fungal keratitis. Contact lens wear and occupation(industry, forester, miner, fisherman)were the risk factors for bacterial keratitis. Risk factors in fungal keratitis were fifth decade of age, farmer, and systemic diseases(diabetes mellitus etc.). Risk factors in herpetic keratitis were male and occupation(office worker, service, student, housewife). Risk factors in Acanthamoeba keratitis was contact lens wear.

Hybrid External Fixation in the Treatment of Periarticular Fractures of Tibia / 대한정형외과학회잡지

The authors constructed a simple hybrid frame by combining AO tubular and llizarov ring external fixator, using a modified AO single adjustable clamp. From 1997 Jan. to 1998 Apr. 19, periarticular fractures of the tibia were treated with hybrid external fixator. The clinical results using this frame were then analyzed. Of the 19 cases, there were 11 proximal and 8 distal periarticular fractures of the tibia. Open fractures were 5 cases in proximal and 2 cases in distal tibial fractures. All fractures were classified according to the AO classification. There were 1 A2, 4 A3, 1 C1, 5 C2 proximal and 1 A2, 4 A3, 1 C1, 2 C2 distal periarticular fractures. The mean bony union time was 13 wks (range 8-36 wks) and the mean length of time in the external fixator was 12 wks (range 8-36 wks). At last follow up, the MPTA of the proximal tibia was 87.2+/-0.8 and the LDTA of the distal tibia was 88.6+/-1.1. The mean articular depression of the intra-articular fractures was 1 mm. Complications were intermittent pin drainage in 7 patients (26.3%), deep infection in 1 patient (5.3%), delayed union in 3 patients (15.8%) and nonunion in 1 patient (5.3%). In conclusion, hybrid external fixation is a good treatment option for periarticular fractures of the tibia because of its simplicity, versatility, sufficient stability to allow early joint motion, little further soft tissue damage, and so on.