The ACL or anterior cruciate ligament is the most important ligament in the knee. When it is completely torn, it can lead to instability or buckling of the knee. There are several options to choose from when selecting a graft for ACL reconstruction such as using autografts including patellar tendon, hamstring tendon, and quadriceps tendon, and allografts (also known as donor tissue or cadaver tissue). Artificial ligaments are also discussed since they are still used in Europe and Asia. This book summarizes the pros and cons of each graft option in detail.

The Telephone Maintainer Passbook(R) prepares you for your test by allowing you to take practice exams in the subjects you need to study.

The Power Distribution Maintainer Passbook(R) prepares you for your test by allowing you to take practice exams in the subjects you need to study. It provides hundreds of questions and answers in the areas that will likely be covered on your upcoming exam, including but not limited to: equipment and tools used in the power distribution division; proper installation, maintenance, inspection and safety procedures used in the power distribution division; the principles and operation of electrical test equipment and fundamental electrical principles; reading circuit schematics and making electrical computations; transit authority rules and regulations and power distribution division procedures; and more.