Biomechanical Laboratory Article Example | Topics and Well Written Essays - 1000 words

Biomechanical Laboratory - Article Example Bioabsorbable interference screws are popular in endoscopic reconstructions of the ACL as there is no need for a second operation for removal and no complicating factor in case of a revision surgery. Pullout studies of metal and bioabsorbable interference screws have yielded similar results. However, a randomized controlled clinical trial comparing patients having metal interference screws with those having bioabsorbable poly-l-lactic acid screws showed subjective knee function to be better in the patients in the metal screw group although no difference in stability was noted between the two groups (Drogset et al., 2005) 3. Bioabsorbable interference screw breakage can be a problem in ACL reconstructive surgery which necessitates burying the screw on graft fixation (MacDonald and Arneja, 2003 ) 4. Partial or non-uniform degradation of bioabsorbable screws could lead to breakage with daily activities (Hall et al., 2009) 5. An in vitro study by Schwach and Vert (1999)6 showed a loss of 50% of compression strength in poly-L-lactic acid screws due to hydrolytic degradation between 2 and 5 months. While the overall complication rate associated with the use of this implant is low, complications involving osteolysis and aseptic effusion of the knee joint have been reported (Baums et al., 2006)7. Other complications that have been reported with bioabsorbable interference screws include cyst formation, tunnel widening, late screw breakage, and intra-articular migration (Appelt et al., 2007; Lembeck et al., 2005) 8, 9 According to Weiler et al. (1998)1, graft fixation close to the ACL insertion site increases anterior knee stability. The authors could do this successfully using a round threaded biodegradable interference screw. Interference screw fixation of bone-patellar tendon-bone grafts is a well-established process in ACL fixation. A study was conducted by Zheng.

The historic Development of Chinese Private International Law Article

The historic Development of Chinese Private International Law - Article Example Following the enactment of the process of reform and the opening-up in 1978, the destiny of China has never been the same. For the last three decades, China has realized progress on an unprecedented magnitude. Its economy is skyrocketing as the legal system undergoes continuous improvements. We can deduce that it is the reform policy coupled with the opening up that has attracted the international community to China. This guiding principle has also enabled China to familiarize itself and have an understanding of the international arena2. Within the last three decades, China has also witness a tremendous development in its legal academy, an impact of which much greater research and high number of improved performances have been encouraged and promoted. A case in point is the development of private international law. The nation’s private international legal structure has turned out to be more comprehensive, efficient and effective, especially in view of the actualization of Chapter IX of the draft Civil Code. It is possible to project with certainty that in the few years to come, the Chinese private international legal structure will be one of the most popular systems in the planet, with respect to both structure and composition3. The inception and growth of law and the social context within which it exists are inseparable. The things that private international law oversees are the international civil and commercial legal link. As such, its occurrence and progress cannot be realizable without clear-cut state policy together with a social environment in under which the Chinese can enjoy equal interaction with the international community. Since 1949, a period when new China was formed, to 1978, owing to historical reasons, China was in a comparatively confined social environment4. It was not possible for the nation’s private international law to advance