OBJECTIVE To evaluate the surgical aspects that may offer good anatomic and functional results in posterior cruciate ligament (PCL) reconstruction using an autologous graft of the quadriceps tendon and double semitendinosus through a double femoral tunnel. METHODS Fourteen patients with isolated PCL lesions, instability and pain were operated on by arthroscopy and evaluated according to the I...

INTRODUCTION: Despite the recent advances in our understanding of the anatomy and biomechanics of the posterior cruciate ligament (PCL), current methods of PCL reconstruction continue to lack the clinical success that anterior cruciate ligament (ACL) reconstruction has experienced, with many patients developing residual posterior laxity following surgery [1]. One variable that directly affects ...

CONTEXT Use of prolotherapy (injection of growth factors or growth factor stimulators). OBJECTIVE Determine the effects of dextrose prolotherapy on knee osteoarthritis with or without anterior cruciate ligament (ACL) laxity. DESIGN Prospective randomized double-blind placebo-controlled trial. SETTING Outpatient physical medicine clinic. PATIENTS OR OTHER PARTICIPANTS Six months or more ...

We report for the first time the abnormal increases in posterior subluxation of the medial and lateral tibial plateaus after sectioning the posterolateral structures and posterior cruciate ligament. We applied specific forces and moments to the knees of seven cadaveric whole lower limbs and measured the position of the tibia at which the ligaments and the geometry of the joint limited motion. R...

OBJECTIVE A multifactorial combination of predictors may increase anterior cruciate ligament (ACL) injury risk in athletes. The objective of this twin study was to examine these risk factors to identify commonalities in risk factors that predisposed female fraternal twins to ACL injury. METHODS Female twins in high-risk sports were prospectively measured prior to an injury for neuromuscular c...

Surgical reconstruction is generally recommended for posterior cruciate ligament (PCL) injuries; however, the use of grafts is still a controversial problem. In this study, a three-dimensional finite element model of the human tibiofemoral joint with articular cartilage layers, menisci, and four main ligaments was constructed to investigate the effects of graft strengths on knee kinematics and ...

case a 13-year-old boy presented to the ski clinic following a fall and a possible twisting of his right knee. he was not able to bear any weight on his right leg and was experiencing pain in the medial aspect of his right knee. his past medical and surgical histories were unremarkable and he was otherwise in good health. physical examination revealed no ecchymosis or effusion. he had moderate ...

The anterior cruciate ligament (ACL) is the primary restraint to anterior translation of the tibia on the femur. Research suggests that resistance to anterior translation changes as the tibia is rotated internally and externally. This study assessed the degree to which ACL reconstruction and tibial rotation affects anterior knee laxity. Nine subjects with ACL lesions and functional instabilitie...

Healthy knee joints require structural stability through a full range of motion. Knee stability is primarily provided by a network of ligaments that resist abnormal forces and direct smooth articulations. Ligament malfunction has deleterious effects on balance, agility, and knee laxity. Altered knee laxity redistributes the stress transmitted across articulations, which may create regional stre...