BACKGROUND Following anterior cruciate ligament injury and subsequent reconstruction transverse plane tibiofemoral rotation becomes underconstrained and overconstrained, respectively. Conflicting reports exist on how rotations influence loading at the knee. This investigation aimed to determine the mechanical effects of internal and external tibial rotation offsets on knee kinematics and ligame...

conclusions the clinical examination is an important and accurate diagnostic modality for evaluation of traumatic derangement of the knee joint. it is noninvasive, easy, available, and valuable diagnostic modality. the mri is an accurate diagnostic modality. it can be used whenever there is an uncertain indication for arthroscopy. however, costs have to be kept in mind, especially in patients w...

Abnormal anterior translation of the femur on the tibia has been observed in mid flexion (20-60 degrees ) following posterior stabilized total knee arthroplasty. The underlying biomechanical causes of this abnormal motion remain unknown. The purpose of this study was to isolate the effects of posterior cruciate ligament removal on knee motion after total knee arthroplasty. We posed two question...

background :rupture of the anterior cruciate ligment (acl) is a common knee injury. the purpose of this study was to determine the balance control in football players with and without acl reconstruction in posture of injury.   methods : sway of the center of gravity of 15 patients with acl reconstruction was compared with 15 healthy, age and sex-matched subjects as the control group. all tests ...

methods we handed out questionnaires to 80 female soccer players with a history of acl injury (90 acl injuries). the players were asked about the injury characteristics, injury circumstance, maneuver being performed when the injury occurred, and playing type associated with the injury. the players responded to the questionnaire under the guidance of the medical staff of each team. results the 8...

Background & Aims: Knee joint is a complex structure and anterior cruciate ligament (ACL) tear is one of the most common injuries of it. Anterior cruciate ligament, because of its proprioceptive function, has an important role in balance control and its tearing may tend to balance control deficiency. The aim of the present study was to evaluate the effect of functional brace on the balance in p...

BACKGROUND While single-bundle anterior cruciate ligament reconstruction reduces anterior-posterior laxity, studies have demonstrated residual rotational instability. Improved pivot-shift results have been shown with the double-bundle graft; however, no study has compared rotational laxity outcome of these surgical techniques in vivo under quantified, isolated torsional loading. HYPOTHESIS Th...

Objectives: The aim of the present study was to compare the performance of the vertical jump task and the level of disability between the coper and non-coper athletes with an anterior cruciate ligament-minus knee. Methods: Thirty-four professional male athletes with isolated complete anterior cruciate ligament-tear (age 20-29 years and 6-12 months time past injury) were recruited in this stu...

The floppy Anterior Cruciate Ligament (ACL) sign is a well-established arthroscopic and MRI indicator of Posterior Cruciate Ligament (PCL) insufficiency. We explored the diagnostic and therapeutic options in such cases by retrospectively analyzing the management of a series of five consecutive cases of iatrogenic floppy ACL reconstructions which resulted in fixed posterior drawer. All patients ...