Active clinical trials for "Osteoarthritis"

The telephone interviews will be conducted to gather information on goal setting and goal attainment from men and women with osteoarthritis.

The aim of this project is to investigate fMRI ability to identify pain central sensitization in chronic knee OA. Patients with high and low central sensitization and healthy control subjects will be included. Central sensitization will be clinically defined based on the evidence of regional spread of pain (spreading sensitization) and increased pain response to repeated stimulation (temporal summation). Operatively, a patient will be assigned to high sensitization group when showing (i) clinical evidence of pain or altered sensations spread beyond the knee joint by manual palpation, (ii) a minimum of 3 anatomical sites around the knee showing a pressure pain threshold below 4 kg/cm2 (tender points), (iii) pain score of 4 points or more in a 11-point scale during 4 kg/cm2 pressure stimulation on the anterior/medial surface of the tibial bone (the site selected for the fMRI experiment) and (iv) increase of at least 1 point in a 11-point scale after 10 repeated pressure stimulation on the tenderest point around the knee. A three-step strategy is proposed to characterize the phenomenon by assessing (i) brain response to direct pressure stimulation on the painful knee, which will reflect the combination of peripheral and central sensitization; (ii) brain response to pressure stimulation on a non-arthritic hyperalgesic area (i.e., the anterior surface of the tibia), which will mostly reflect central sensitization mediated at the spinal cord level, and (iii) brain response to moderately painful heat stimulation on a healthy skin area (i.e., volar forearm), which will reflect central sensitization occurring in the brain and involving the highest-level pain modulatory mechanisms. An additional evaluation is proposed using resting-state fMRI to assess potential alterations in baseline brain functional organization.

The proposed study aims to objectively assess 2-year clinical and radiographic results for the rate of glenoid component loosening in total shoulder arthroplasty (TSA). This retrospective radiographic review will provide evidence for equivalence or superiority in curtailing loosening, a known complication in arthroplasty, when a hemostatic agent is utilized in conjunction with cement at the glenoid.

By this study the investigators wish to (1) quantify hip strength and functional-performance deficits at discharge after fast-track total hip arthroplasty (THA), and (2) investigate if changes in thigh circumferences, or hip pain are correlated to changes in hip strength and functional-performance after fast-track THA.

The dual mobility design concept for acetabular liners, as is used in the Restoration ADM Acetabular System, has been applied in various implants since its introduction by Gilles Bousquet in France in 1976. Dual mobility cups have shown good clinical results and have been particularly lauded for low incidence of dislocations. However, the wear performance of this design concept has not been proven to date. As wear particles are a possible contributing factor in aseptic loosening, the assessment of wear and fixation is an important step in proving this implant design. The proposed study will combine RSA and peri-prosthetic bone mineral density as well as outcome questionnaires to provide a complete in vivo evaluation of prosthesis fixation, polyethylene wear, and objective and subjective outcomes for the Restoration ADM Acetabular System.

This is a feasibility study to determine if anti-inflammatory cytokines can be concentrated from patients with osteoarthritis.

The primary objective is to document function of the structurally intact subscapularis after total shoulder arthroplasty by using electromyography. Structural integrity of the subscapularis will be confirmed using ultrasound. The secondary objective is to determine the diagnostic accuracy of the belly compression and lift off tests in evaluating the integrity and function of the subscapularis when compared to the ultrasound and electromyography (EMG). This will be accomplished by enrolling and evaluating patients with a primary diagnosis of osteoarthritis who have had a total shoulder replacement preformed by the PI from September 2003 through December 2007.

Periodontitis (PD) has been postulated to be a risk factor for the onset and progression of rheumatoid arthritis (RA). Recent reports suggest that infection with Porphyromonas gingivalis (P. gingivalis), a major oral pathogen in PD, could play a pivotal role in the development RA. The objective of this study is to examine the relationship of PD and P. gingivalis infection with the risk and severity of RA.

This was a study to estimate the proportion of participants with osteoarthritis of the knee(s) who were treated with oral or topical analgesics for their symptoms, who did and did not report adequate pain relief at Baseline and to characterize their pain level over a 12-month follow-up period.

Estimate the prevalence of self-reported osteoarthritis and its characterization in adults over 45 years of age: Characterization of self-reported patients with OA (socio-demographic, comorbidities, VAS for intensity of pain) Characterization of OA diagnosis in patients with self-reported OA Impact of self-reported OA in the working abilities, quality of life and functionality (SF-12 v2.0) Characterization of treatment approaches (therapeutic and non-therapeutic) for self-reported patients with OA Patient perception of impact of OA in its life and importance given to disease