Analysis of Landing Error Scoring System during Drop Vertical Jump on Anterior Cruciate Ligament Injury Risk Factors in Elite Fencers / 대한스포츠의학회지

PURPOSE: The aim of this study was to identify the differences of gender and detail items by using landing error scores during drop vertical jumping that can be used in the field for elite fencers and to use them as basic data for prevention of injury. METHODS: The subjects were 42 elite fencers. Independent sample t-test was used to compare the landing error scoring system (LESS) score between the groups. In order to compensate for errors that may occur in multiple comparisons, they are corrected through the Bonferroni collection. The significant differences between the groups were evaluated using Cohen effect difference, and one-way analysis of variance was performed for differences in epee, fleuret, and sabre. RESULTS: The comparison of landing error scores between male and female fencer groups showed that the knee valgus angle at initial contact, lateral trunk flexion angle at initial contact, stance width-narrow, foot position-toe out, symmetric initial foot contact, in the total score of LESS items, female fencer group was higher and statistically significant difference was found. CONCLUSION: In the case of fencing players, there is no significant difference in the LESS scores according to the items. However, when comparing gender, female fencers have higher LESS scores than male fencers; female fencers should be more careful in preventing injuries.

Catheter-directed Thrombolysis with Urokinase in Deep Venous Thrombosis

PURPOSE: To evaluate the efficacy of catheter-directed thrombolysis in treating symptomatic deep venous thrombosis (DVT) in lower limbs. METHODS: Between Jan. 1999 and Dec. 2002, 29 consecutive patients with DVT had received thrombolytic therapy. The male: female ratio was 6: 23 and the mean age was 50.3+/-13.5 years. The mean duration of symptom was 9.9+/-22.1 days. Catheter-directed infusions of urokinase were administrated via ipsilateral popliteal veins and the angioplasty and stent placement performed after the thrombolytic procedure. The mean dosage of urokinase and duration of thrombolysis were 2, 435, 000+/-887, 000 units and mean duration of thrombolysis was 36.8+/-17.9 hours. Oral medication of warfarin continued at least six months or more. To evaluate the venous patency, duplex ultrasonography or CT venography were performed. RESULTS: Lysis was complete in 17 patients (58.6%, all acute DVT), partial in 11 (37.9%), with only one patient failing. Iliac vein stenosis had shown in 16 patient after thrombdysis. Which were treated with balloon angioplasty and stent insertion. As a postprocedural complication, vaginal bleeding occurred in two patients; one was treated with transfusion but the other stopped without treatment. CONCLUSION: Catheter-directed thrombolysis with urokinase is effective for the treatment of DVT in lower limbs. However further study will be reguired to evaluate the relationship between the incidence of postthrombotic syndrome and thrombolytic therapy alone.