Anterior cruciate ligament tears are common and affect young individuals who participate in jumping and pivoting sports. After injury many individuals undergo ligament reconstruction (ACLR) but do not return to play, suffer recurrent injury and osteoarthritis. Outcome studies show that after ACLR, 81% of individuals return to sports, 65% return to their preinjury level and 55% return to competitive sports. Systematic reviews place the risk of ipsilateral retears at 5.8% and contralateral injuries at 11.8%, with recent reports of over 20% failure rate. Approximately 20% to 50% of patients will have evidence of OA within 10 to 20 yr. Factors important in reducing complications include timing of surgery, individualized return to play protocols, and prevention programs for injury. Further understanding of the factors that increase return to play percentages, reduce the risk of recurrent injury and improve long-term outcomes after ACL injury is needed to reduce the burden of these injuries on society.

No abstract

The effect of crop rotation involving tomato, corn and velvet bean (Mucuna deeringiana) on the population levels of Meloidogyne incognita and Rotylenchulus reniformis and on crop yield was studied for 2 years in the Isabela area. Meloidogyne incognita and R. reniformis population levels were drastically reduced in all rotations with velvet bean and corn, whereas a considerable increase was obtained from plots with continuous tomato. In the fourth planting (second year), the tomato roots from plots previously planted to velvet bean showed significantly smaller gall index values than those in the other treatments. The yields of tomato from plots previously planted to velvet bean or corn were significantly higher than those from plots planted to continuous tomato or from nematicide-treated plots.

NEMATICIDES AND PAECILOMYCES LILACINUS IN NEMATODE CONTROL IN WATERMELON

SUSTRATOS DE ARROZ (ORYZA SATIVA, L.) Y EL CRECIMIENTO DEL HONGO BIOCONTROLADOR DE NEMATODOS PAECILOMYCES LILACINUS