We studied a group of anterior cruciate ligament-deficient athletes to identify whether joint position and direction of joint motion have a significant effect on proprioception. Twenty-nine anterior cruciate ligament-deficient athletes were tested for their threshold to detect passive motion at both 15 degrees and 45 degrees moving into the directions of both flexion and extension. The single-l...

iv CHAPTER 1: GENERAL INTRODUCTION INTRODUCTION 1 CHAPTER 2: REVIEW OF LITERATURE 1.1 Incidence and Prevalence of Knee Osteoarthritis following ACL Rupture 5 1.2 Functional Anatomy 1.2.1 The ACL 7 1.2.2 Articular Cartilage 9 1.3 Injury to the ACL 10 1.4 Gait Analysis 12 1.5 Neuromuscular Adaptations following ACL injury leading to Knee Osteoarthritis 1.5.1 Quadriceps Weakness 13 1.5.2 Frontal P...

BACKGROUND The mechanism for noncontact anterior cruciate ligament injury is still a matter of controversy. Video analysis of injury tapes is the only method available to extract biomechanical information from actual anterior cruciate ligament injury cases. PURPOSE This article describes 3-dimensional knee joint kinematics in anterior cruciate ligament injury situations using a model-based im...

BACKGROUND The ideal treatment for patients presenting with bilateral anterior cruciate ligament (ACL) deficiency remains controversial. PURPOSE To evaluate cost and early functional results after bilateral ACL reconstruction at a single setting. STUDY DESIGN Retrospective review. METHODS Eleven patients (22 knees) who underwent bilateral ACL reconstruction at a single setting were compar...

INTRODUCTION Bucket handle tear of the menisci is a common type of lesion resulting from injury to the knee joint. Bucket handle injury of both menisci in almost all cases is associated with a lesion to either the anterior or the posterior cruciate ligament of the knee joint. We describe a case of acute bucket-handle tear of the medial and lateral menisci with intact anterior and posterior cruc...

CONTEXT Sex differences in lower extremity landing mechanics and muscle activation have been identified as potential causative factors leading to the increased incidence of anterior cruciate ligament injuries in female athletes. Valgus knee alignment places greater strain on the anterior cruciate ligament than a more neutral alignment. Gluteus medius (GM) activation may stabilize the leg and pe...

A ll au th or s ab id e by th e A ss oc ia o n fo r M ed ic al E th ic s (A M E) e th ic al ru le s of d is cl os ur e. Abstract Introduction Multiple factors act conjointly to in luence the risk of injury of the anterior cruciate ligament of the knee. An understanding of neuromuscular factors remains necessary, although this does not guarantee a complete analysis of the risks of injury to the ...

The rehabilitation of the knee with a deficient anterior cruciate ligament (ACL) always presents a great challenge. Isokinetic assessment allows muscle performance to be quantified. The antishear device, introduced by Johnson, has the distinct advantage of minimizing the anterior translation force during isokinetic exercise. In a previous report, there was a significant difference between the J...

Controversy surrounds the remnant-preserving anterior cruciate ligament surgery. Advantages of remnant preservation have been reported in regard to better healing and knee function, although no consensus has been reached. This review article discussed the value and meaning of anterior cruciate ligament remnant preservation in several sections such as effects on healing, remnant classification, ...

The aim of the study was to evaluate whether MR Imaging of the knee at 30° and 55° of flexion can improve the diagnosis of anterior cruciate ligament and menisci injuries compared to arthroscopy and imaging during extension of the knee joint. Knee joints from 40 patients with clinical suspicion of an anterior cruciate ligament (ACL) rupture were examined using MRI while the knee joint was eithe...