Results of Arthroscopic Partial Meniscectomy for Lateral Discoid Meniscus Tears Associated with New Technique

PURPOSE: To introduce and evaluate the clinical results of a new arthroscopic technique for partial meniscectomy of symptomatic lateral discoid meniscus using a knife. MATERIALS AND METHODS: From March 2005 to October 2010, 60 knees of 58 patients underwent arthroscopic partial meniscectomies for lateral discoid meniscus. The average age was 28.9 years (range, 12 to 63 years), and average follow-up was 26 months (range, 8 to 72 years). In this procedure, using a No. 11 knife holder inserted through the high far anteromedial portal, a stab incision on the anterior meniscal horn and following piecemeal meniscal excision were made. Clinical results were assessed using the scale of Ikeuchi and Lysholm score. RESULTS: Meniscus shape was complete in 32 knees (53.3%) and incomplete in 28 knees (46.6%). The shape of tears in complete type lesions was horizontal cleavage in 17 knees (53.1%), flap or complex degenerated tears in 10 knees (31.2%) and radial tears in 5 knees (15.6%). Clinical results assessed using the scale of Ikeuchi were excellent in 38 (63.3%), good in 13 (21.6%), fair in 8 (13.3%) and poor in 1 knee (1.6%). The average Lysholm score was improved from 82.8 preoperatively to 95.4 postoperatively. CONCLUSIONS: Our new arthroscopic technique in lateral discoid partial meniscectomy suggests convenient methods and successful clinical results.

Radial Artery Pseudoaneurysm after Arterial Blood Gas Analysis: A Case Report

Pseudoaneurysms might be caused by perforation of an artery with hematoma formation between the arterial wall and the surrounding tissue after penetrating injury, intervention or operation. The frequency of radial artery pseudoaneurysm as a complication of cannulation is known for 0.048%. We report one case of radial artery pseudoaneurysm after single arterial blood gas analysis at wrist, which was managed by excision followed by vein graft.