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62 active trials for Osteoarthritis Hip

Migration in Total Hip Arthroplasty With a Cemented BiMobile Cup: Better Stability With More Cement?

Objective: The main objective of this study is to compare the (early) migration of the cemented BiMobile cup at two year post-surgery between two different cup sizes after standard optimal reaming, and consequently adjusting the cement mantle into circa 2 or 4 mm, in patients with a primary cemented total hip arthroplasty (THA). Additionally, the results of the BiMobile cup will be compared to the Avantage cup, which is placed with a standard cup size, resulting in a cement mantle of approximately 2 mm. Study design: A prospective single centre blinded randomised controlled trial. Study population: All patients who meet the criteria to undergo a cemented THA.

Start: January 2019

Osseointegration of THA Grafted by PolyNASS (ACTISURF-CERAFIT® ) Versus Non-grafted THA (CERAFIT®

The infection rate after Total Hip Arthroplasty (THA) is about 1%. It is a serious condition, with high morbidity, sometimes fatal, requiring costly treatment. The treatment is difficult because "biofilm" forms very early after the bacterial contamination of the prosthesis. Prevent infection means reduce or prevent the formation of bacterial biofilm and controlling protein response to allow osseous-integration of the prosthesis. A new prosthesis was developped, grafted by PolyNaSS (polysodium styrenesulfonate). This bioactive polymer allows to substantially reduce bacterial adhesion, biocompatibility, bio-integration in preclinical studies. This first clinical study aims to compare the osseous-integration of this prosthesis to the same prothesis with no grafting. No previous clinical trial

Start: May 2017

Analysis of a Tapered Porous Coated Stem and a Cementless Hemispherical Acetabular Component

This prospective study will evaluate the hip function and quality of life of patients operated for total hip arthroplasty with Masterloc femoral stem and MPACT acetabular cup. The results of this study will establish the performance of Masterloc femoral component (Medacta International SA) and MPACT acetabular component (Medacta International SA), and provide a general estimate of survivorship, clinical effectiveness and complications.

Start: July 2017

Influence of Femoral Head Size During Total Hip Arthroplasty on Gait

Total hip replacement (THR) is being considered as one of the most effective medical procedures. Since its introduction, there was a worldwide debate over proper implant selection in terms of size, bearing type and shape. The diameter of used femoral heads components grew throughout the years - from 22 mm in the 1960s to 32 mm in the 2000s, which is the most commonly used size nowadays. In recent years there was a visible use of large femoral heads (>=36mm) in several registers. In the USA there was a significant grow in use of this heads rising from 1% in early 200s to even 58% in 2009. There is a strong evidence data and many researchers concerning range of movement, risk of dislocation, functional results, pain and prosthesis wear depending of femoral head size. In terms of gait characteristics there are several deviations reported concerning both patients with hip osteoarthritis and following THR. There is a lack of literature concerning influence of used implants on gait parameters and whether this goal of the surgery can be achieved. The aim of this study was to assess potential differences of lower limb biomechanics during gait in patients following total hip replacement surgery depending on femoral head diameter and compare them to the normal gait of healthy volunteers. As a secondary outcome authors wanted to inspect correlation between gait parameters and patient-reported outcome.

Start: January 2016

Intraoperative IV Iron on Postoperative Red Blood Cell Recovery

The objective of the present study is to determine the impact of intraoperative IV-iron supplementation on postoperative recovery of RBC mass by retrospectively analyzing and comparing the changes of postoperative hematocrit values after the surgery in patients underwent elective uni-limb total knee arthroplasty surgery with or without IV-iron supplementation during surgery

Start: March 2021

Dual-mobility Cups Compared to Unipolar Cups on Dislocation and Cost-effectiveness After Primary Total Hip Arthroplasty.

Objective: The primary objective is to investigate whether there is a difference in the number of hip dislocations following primary total hip arthroplasty (THA), using the posterolateral approach, with a DM cup compared to a unipolar cup in elderly patients 1 year after surgery. Study design: Prospective multi-center nation wide, single blinded RCT nested in the LROI. Study population: Patients ? 70 years old, undergoing an elective primary cemented THA.

Start: January 2019

Comparison of Clinical Results of Two Cementless Femoral Stem

In the present study, two types of cementless femoral stem- UTS Stem and UTF-reduced Stem- were utilized in total hip arthroplasty. Due to the design for proximal femur fixation, both femoral stems could prevent stress shielding around the implant, further preventing osteolysis. The difference between both femoral stems is the length, in which UTS Stem is 20% shorter than UTF-reduced Stem. The clinical outcomes of both femoral stems will be compared. Both femoral stems are expected to have equally good radiologic outcome and clinical performance.

Start: June 2020

Mechanical Ventilation Based on Driving Pressure in Lateral Position

Previous studies showed that, best lung protective strategies of ventilation parameters are based on driving pressure in damaged lungs. But there are few studies concerning the effects of different positions during different types of surgery on driving pressure with normal lungs.So the investigators decided to compare mechanical ventilation based on driving pressure with conventional mechanical ventilation in patients with lateral decubitus position during total hip replacement surgery. The investigators hypothesised that, there will be better intraoperative hemodynamic and respiratory parameters with better early postoperative results in patients whom mechanical ventilation parameters are adjusted according to driving pressure. In this randomised, controlled, double blind study, 60 patients who will have total hip replacement surgery will be recruited to the study. 30 patients will be ventilated by 8 ml/kg tidal volume and 5 cmH20 PEEP, in conventional lung protective group. And the other 30 patients will be ventilated by 8 ml/kg tidal volume and PEEP level with the lowest driving pressure. The investigators primary goal in this study study is to compare the effects of conventional lung protective ventilation with ventilation based on driving pressure on hemodynamic and respiratory parameters. And secondly, the investigators aim to compare the effects of these two techniques s on early postoperative outcome. The investigators primary result parameters are intra operative fluid consumption, lactate, etC02 and mix venous oxygen saturation levels.The investigators secondary result parameters are postoperative mechanical ventilation, ICU stay and discharge times.

Start: August 2019

Use of Cooled Radiofrequency for the Treatment of Hip Pain Associated With Hip OA Compared to Intra-articular Steroid Injections

This will be a multi-center, prospective, single-blinded randomized clinical trial to investigate the effectiveness of using cooled radiofrequency ablation (CRFA) for the treatment of osteoarthritis (OA) hip pain and function in subjects treated with CRFA compared with standard of care intra-articular steroid injections

Start: December 2019

Transplantation of Autologous Bone Marrow Derived Stem Cells in Patients With Rheumatoid Arthritis

Rheumatoid arthritis is a chronic systemic disease, which is characterized by chronic inflammation in the synovial tissue. Rheumatoid arthritis ultimately results in the destruction of cartilage, bone and ligaments and joint deformity. The underlying hypothesis is that autologous bone marrow-derived mesenchymal and specific populations of stem cells has anti-inflammatory and regenerative effects and thus potentially alleviates the progression of rheumatoid arthritis. The study is to explore the safety and efficacy of BM-SC transplantation in treatment of rheumatoid arthritis.

Start: November 2016

The Effect of Zoledronic Acid on Patients With Osteoarthritis of the Hip

Hip Osteoarthritis (OA) is one of the most common diseases affecting the ageing population. No specific and safe treatment slowing the development of hip OA as reflected in reduced joint space narrowing has been developed so far. Implantation of hip prosthesis has been a great success, but is expensive and puts a great financial pressure on hospitals and national healthcare programs. It also poses risks of serious complications. Current non-surgical treatment options focus on pain management and physiotherapy. Bisphosphonates have been shown to exert multiple beneficial effects in OA. Animal studies have demonstrated that bisphosphonates protect against subchondral bone degradation and preserve articular cartilage in mice and rats with OA. In this study 70 participants will be treated with either Zoledronic Acid (a potent Bisphosphonate) or Placebo (Saltwater). Allocation will be random and both parties are blinded. The investigators hypothesis is that participants treated with Zoledronic acid will have less pain, and better function after 12 months. The results will be tested with functional and pain scores, and functional tests. The study team will also measure the effects on disease related quality of life, bone quality measurements and the effect on bone marrow lesions on MRI (magnetic resonance imaging) and histological examination

Start: March 2020

Evaluation of Stability of Two Uncemented Hip Implants Used for Total Hip Arthroplasty

The purpose of this study is to measure quantitatively the implant stability and implant related remodeling of the periprosthetic femoral bone of the new uncemented Echo® Bi-Metric® Full proximal Profile total hip arthroplasty (THA) stem, and compare it to the classical uncemented Bi-Metric® Porous Primary THA stem by measuring migration of the stem assessed by model-based radiosteriometric analysis (MB-RSA) and measuring the periprosthetic adaptive bone remodeling assessed by dual-energy x-ray absorptiometry (DXA).

Start: January 2016

A Comparison of PRP Treatment to the IA vs. IA and EA Environments in Patients Diagnosed With Hip Osteoarthritis

The purpose of this study is to evaluate the efficacy of one 5 ml leukocyte-poor platelet-rich plasma (LP-PRP) injection to the intra-articular (IA) space in comparison to one 5 ml LP-PRP injection to the IA space with the addition of 3 ml injection into the surrounding extra-articular (EA) structures for the treatment of hip OA (Kellgren Lawrence Grades 1-3). Our hypothesis is that patients receiving both IA and EA LP-PRP injections will have equivalent improvements on HOOS JR and VAS scores over a 12-month period compared to those in the active comparator group (IA LP-PRP injection).

Start: October 2019

Early Virtual Reality Based Home Rehabilitation Program After Total Hip Arthroplasty

Total hip replacement (THR) is one of the most common interventions in orthopedic surgery. Rehabilitation is essential for maximizing the effectiveness of the surgery. Tele-rehabilitation programs after orthopedic surgery have proven their effectiveness, validity and cost-efficacy. It seems of interest to test the potential advantages of early virtual reality based rehabilitation programs after total hip arthroplasty compared to standard care. The aim of the study is to evaluate the functional recovery following total hip arthroplasty and home telerehabilitation programs with a virtual reality based system.

Start: March 2019

Conventional Total Hip Arthroplasty vs Mako Robotic-arm Assisted Total Hip Arthroplasty

The overall aim of this single-centre, prospective randomised controlled trial is to compare clinical, functional, and radiological outcomes in CO THA versus Mako THA. Patients undergoing Mako THA will form the investigation group and those undergoing CO THA will form the control group.

Start: November 2018

Chronic Pain, Couples, & Physical Activity

Chronic pain affects more than 50 million adults in the United States (Dahlhamer, Lucas, Zelaya, Nahin, Mackey, DeBar et al., 2018) and is estimated to cost the nation more than $560 billion dollars each year (Gaskin & Richard, 2012). Regular physical activity is widely recognized as essential for maintaining health for all individuals (US Department of Health and Human Services, 2018), but is particularly important for individuals with chronic pain (ICPs) as physical activity can prevent further deconditioning and may even improve pain outcomes (e.g., CDC, 2018). Previous literature has shown that certain categories of partner behaviors (e.g., solicitous, punishing, distracting) are associated with different health outcomes for ICPs (e.g., Cano, Leonard, & Johansen, 2006), and recently researchers have begun examining partner behaviors through the lens of Self-Determination Theory, specifically looking at the effects of autonomy support from a spouse on physical activity among ICPs (e.g., Uysal et al., 2017). Partner autonomy support has been positively associated with physical activity levels (Martire et al., 2013) and better health outcomes (Uysal et al., 2017), but no studies to date have explored what factors predict whether or not a partner will use an autonomy supportive interpersonal style (as opposed to a controlling interpersonal style) with the ICP. Similarly, more research is needed on the mechanisms by which autonomy support promotes positive outcomes for ICPs. Though receiving autonomy support has been linked to increased physical activity and improved mental health, no studies have yet tested the full Self-Determination Theory model as one possible explanation of the link between this form of partner support and desirable health outcomes. In particular, it is important to understand the ICP's perspective on how partner autonomy support influences need satisfaction and autonomous motivation as possible mediators between autonomy support and ICP physical activity. Furthermore, little research has explored other need supportive behaviors or their need frustrating counterparts. The current study will not only provide greater understanding of autonomy support, but will also expand the literature regarding these other need supportive and need thwarting behaviors. Lastly, given the value of need supportive behaviors from one's partner, it is essential to evaluate how partner perceptions of those need supportive behaviors align with ICP's perceptions of those behaviors. Any need support a partner provides is likely moderated by the ICP's perception of that support.

Start: April 2019

A Comparative Study of Stem and Cup Fixation and Polyethylene Wear

A randomized controlled study comparing two types of cementless femoral stems (LCU and Corail) and two types of acetabular components (DeltaTT and Pinnacle Duofix) in primary total hip arthroplasty. Primary outcome are component migration measured by RSA, wear and patient reported outcome. Patients are evaluated up to 15 years postoperatively.

Start: January 2015

Surgical Joint Registry MBJRF

The purpose of this study is to follow the patient's short term and long term clinical outcome after undergoing joint replacement surgery.

Start: May 2009

Prospective Evaluation of Fixation of the Prime Acetabular Cup

This is a prospective study to compare migration of the Microport Prime acetabular cup to a well-established acetabular cup design after total hip replacement. We will enroll 30 patients with the Prime cup and compare migration, function, pain and quality of life to a historical cohort of patients whom had a different cup used during surgery.

Start: August 2019

Survivorship and Patient Outcomes of Primary Total Hip Arthroplasty With the Ovation Hip System

The objective of this study is to evaluate patient outcomes in regards to safety and effectiveness based on the clinical performance of the reference devices to further support the assessment of residual risk identified in the Clinical Evaluation Report for the Ortho Development Hip System.

Start: June 2019