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Given an abstract, indicate which of the provided candidate titles (Option1 and Option2) best describes it (respond with the text of the title, not option1/2).

Abstract: In reconstructing the anterior cruciate ligament (ACL) it is important to place the inner ends of the drill channels correctly, to get the ACL into an isometric position. Anatomic studies demonstrate the value of a modified surgical technique using a special drill guide for standardized positioning of the anterior cruciate substitute. The drill guide consists of a metal frame with one adjustable and one fixed guide tube. Drilling is done from the anteromedial aspect of the tibia, upwards, through the joint space and the femur in a straight line, both channels being drilled in a single procedure. The precision of guided drilling was superior to that of free-hand drilling in positioning the ligament in the correct anatomic place.
Which is the apt title for the abstract? option1: A modified technique for anterior cruciate ligament (ACL) surgery using a new drill guide for isometric positioning of the ACL. option2: Ultraviolet-B radiation suppresses mast cell degranulation induced by compound 48/80.
Output:
A modified technique for anterior cruciate ligament (ACL) surgery using a new drill guide for isometric positioning of the ACL.