Comparison of Intubation Success Rate and Times Required for Intubation by Glottic Exposure Methods with Glidescope(R) / 대한구급학회지

BACKGROUND: The glottis can be exposed by a Glidescope(R) during endotracheal intubation using either the epiglottis or valleculae elevation method. We compared the epiglottis and valleculae elevation methods for endotracheal intubations performed with a Glidescope(R) using differences in success rate, time spent for tracheal intubation and percent of glottic opening. METHODS: Forty medical students without experience using a Glidescope(R) participated in this prospective, randomized study in which they intubated a tracheal tube into a manikin. All participants performed tracheal intubation using the 2 forementioned methods. Twenty students exposed the vocal cord by placing the blade tip in the valleculae (valleculae elevation method; VEM). The other 20 students directly elevated the epiglottis with the blade (epiglottis elevation method; EEM). We separated intubating time into 3 parts: turnaround time to exposing the vocal cord, tube passing time and first ventilating time. RESULTS: The success rate of tracheal intubation using VEM (86.7%, 104/120) was higher than that using EEM (65.8%, 79/120) (p < 0.001). VEM resulted in a lower total intubation time (VEM vs. EEM, 23.5 +/- 5.3 vs. 29.0 +/- 8.7, p = 0.001). The key factor of this difference was the tube passing time (VEM vs. EEM, 7.4 +/- 2.5 vs. 12.8 +/- 7.4, p < 0.001). CONCLUSIONS: Exposing the vocal cord by using VEM during tracheal intubation with a Glidescope(R) can increase the success rate of tracheal intubation and shorten the time of endotracheal intubation in novices.

Congenital Pseudarthrosis of Ulna: A Case Report / 대한정형외과학회잡지

Congenital pseudarthrosis of the ulna is an extremely rare disease that is usually associated with neurofibromatosis. Various treatments have been introduced such as conservative treatment, nonvascularized bone graft, free vascularized fibular graft, one bone forearm procedure and the Ilizarov technique. However, it is difficult to obtain bone union. We report a case of pseudarthrosis of the distal ulna that was treated by a one bone forearm procedure.

Results of Operative Treatment of Distal Femoral Fracture

PURPOSE: To evaluate the result of comparative study about the cases in the fracture of the distal femur treated with plate and screw, dynamic condylar screw, blade plate, retrograde intramedullary nail and external fixator. MATERIALS AND METHODS: The AO classification system was used. 84 cases who were preformed operation during the period from March 1996 to May 2002, were included in this study. The mean duration of follow-up was 25 months. According to Sachatzker criteria, we classified the following results to excellent, good, fair and poor. RESULTS: Type A were excellent or good result when treated with plate and screw, dynamic condylar screw and retrograde intramedullary nail. Type B were excellent or good result when treated with cannulated screw. Type C were excellent or good result when treated with plate and screw and blade plate. CONCLUSION: We conclude that the most important thing in operation is firmly internal fixation and to obtain this, accurately anatomical reduction and the choice of suitable instrument for the type of the fracture are needed. cannulated screw. Type C were excellent or good result when treated with plate and screw and blade plate.

Total Knee Arthroplasty using LCS Mobile Bearing System

PURPOSE: We evaluated the efficancy of low contact stress (LCS) system in total knee arthroplasty by analyzing clinical and radiological results. MATERIAL AND METHOD: Total knee arthroplasty was performed on 194 patients with 280 knees by the senior author between January 1995 and August 2002, using the LCS system. We used the Hospital for Special Surgery knee rating scale, the range of motion, and radiographic evaluation. RESULT: The knee score was increased from average 48.4 points preoperatively to 84.8 points postoperatively. The flexion contracture was decreased from average 9.4 degrees preoperatively to average 2.8 degrees postoperatively. The further flexion was increased from average 102.2 degrees preoperative]y to 123.7 degrees postoperatively. The femorotibial angle was increased from average 6.2 degrees varus preoperatively to average 6.3 degrees valgus postoperatively. There were 3 fractures of meniscal bearing, 10 superficial infection cases, 3 deep infection cases and 2 peroneal nerve palsy. CONCLUSION: We reported that good and excellent clinical results (95%) were obtained in the patients who had arthroplasties with the LCS mobile bearing system.