Ioannis K. Triantafillopoulos

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Recurrent dislocation, subluxation and functional instability due to patellofemoral pain might be present in 30 % to 60 % of patients managed non-operatively for posttraumatic patella instability. Disruption of the capsule, medial patella retinaculum and/or vastus medialis obliquus have been associated with recurrent patella instability but recently the(More)
OBJECTIVE To investigate both prophylactic and therapeutic roles of salmon calcitonin on the articular cartilage of rabbit's knees. METHODS Right knee instability was produced in 30 New Zealand white rabbits by sectioning the cranial cruciate ligament (CCL). Animals were separated into four groups: placebo prophylactic-stage group (n=6), killed 8 weeks(More)
Avulsion of the tibial tuberosity is a rarely reported fracture. It is mainly considered as an athletic injury accounting for less than 3% of all epiphyseal lesions. In this study, we hypothesized that the use of tension band wiring as a supplement of the internal fixation for the avulsion fractures of the tibial tuberosity would lead the adolescent(More)
BACKGROUND To date, no studies document the effect of anabolic steroids on rotator cuff tendons. STUDY DESIGN Controlled laboratory study. HYPOTHESIS Anabolic steroids enhance remodeling and improve the biomechanical properties of bioartificially engineered human supraspinatus tendons. METHODS Bioartificial tendons were treated with either nandrolone(More)
Osteoarthritis (OA) is a major cause of suffering for millions of people. Investigating the disease directly on humans may be challenging. The aim of the present study is to investigate the advantages and limitations of the animal models currently used in OA research. The animal models are divided into induced and spontaneous. Induced models are further(More)
Few studies have assessed the results of autologous chondrocyte implantation in patients with high-impact activities. The purpose of this study was to evaluate the early functional outcome and activity level after 2-stage autologous chondrocyte implantation in professional soldiers and athletes. Nineteen patients with an average age of 32.2 years were(More)
Background. The purpose of this study was to report our experience with shoulder hemiarthroplasty in the context of old trauma. Methods. 33 patients with failed treatment for a complex proximal humeral fracture underwent prosthetic hemiarthroplasty. There were 15 men and 18 women with a mean age of 58.1 years. The average period from initial treatment was(More)
We sought to determine whether the post-traumatic pathology in the rabbit knee induced by anterior cruciate ligament (ACL) transection is a model of cartilage injury and repair (i.e., irreversible osteoarthritis) or one in which phases of degeneration and regeneration occur. After knee instability was induced in 15 New Zealand White rabbits by ACL(More)
To address the need to impact the subchondral bone-articular cartilage interaction for the treatment of degenerative osteoarthritis (OA), bisphosphonates may be used as a means to inhibit the subchondral bone resorption. The purpose of the present study is to evaluate the chondroprotective effect of zoledronic acid (ZOL) in a model of OA. Eighteen adult(More)
OBJECTIVE Despite the existence of numerous case series, no evidenced-based medical management for atypical fractures associated with bisphosphonate (BP) treatment has been established. DESIGN We report the outcome of teriparatide (TRP) administration followed by strontium ranelate (SR) in a woman with a complete and an incomplete contralateral atypical(More)