conclusions significant improvement was noted at womac scale (pain level; 5 points, stiffness level; 2 points, physical function loss; 15 points, and total womac 22 points). osteoarthritis level of the patient was improved to grade i at radiological evaluation after a year. our case is the report that presents radiological evidence in addition to clinical findings of improvement of osteoarthrit...

background: the aim of this study is evaluation of the validity and reliability of the persian version of knee injury and osteoarthritis outcome score (koos) in patients with isolated meniscus injury. materials and methods: one hundred people with isolated meniscal injury (29 females and 71 males with a mean age ± standard deviation [sd] = 32.37 ± 9.97 years) and ?fty normal people with no knee...

OBJECTIVE: A method has been developed to accurately measure three-dimensional (3-D) femoral-tibial contact positions of artificial knee implants in vivo from X-ray fluoroscopy images using interactive 3-D computer vision algorithms. DESIGN: A computerized graphical (CAD) model of an implant component is displayed as an overlay on the original X-ray image. An image matching algorithm matches th...

BackgroundWhile posterior cruciate-retaining (PCR) implants are a more common total knee arthroplasty (TKA) design, newer bicruciate-retaining (BCR) TKAs now being considered as an option for many patients, especially those that younger. While PCR remove the ACL, BCR TKA designs keep both cruciate ligaments intact, it is believed resection of ACL greatly affects overall kinematic patterns desig...

BACKGROUND The aim of this study is to evaluate the geometry of the distal femur and the proximal tibia in the osteoarthritic knee using 3D reconstructive CT scan imaging. METHODS 449 patients with knee osteoarthritis were treated surgically in our center with patient-specific technology total knee arthroplasty. Preoperatively, all the patients underwent a CT scan according to a standard prot...

OBJECTIVES Patient-specific (PS) implantation surgical technology has been introduced in recent years and a gradual increase in the associated number of surgical cases has been observed. PS technology uses a patient's own geometry in designing a medical device to provide minimal bone resection with improvement in the prosthetic bone coverage. However, whether PS unicompartmental knee arthroplas...

background: the purpose of this study was to investigate the effects of two types of rehabilitation techniques, including aerobic and strengthening exercises on patients with knee rheumatoid arthritis (ra). methods: 48 male patients with knee ra were randomly assigned into 3 groups, including aerobic exercises, strengthening exercise, and control. the two first groups completed their treatment ...

Many people suffer from knee pain due to abnormal function of the patellofemoral joint and are not able to enjoy normal activities of daily living. Surgical treatments are available and new methods are being developed by the medical industry. However, computational tools to efficiently evaluate the effects of the intervention on patellofemoral function are lacking. Therefore, a validated and ef...

Computational mechanics has been advanced in every area of orthopedic biomechanics. The objective of this paper is to provide a general review of the computational models used in the analysis of the mechanical function of the knee joint in different loading and pathological conditions. Major review articles published in related areas are summarized first. The constitutive models for soft tissue...