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62 active trials for Osteo Arthritis Knee

Comparing Local Anesthesia With and Without iPACK Block

Total knee arthroplasty is an effective surgical intervention for patients with chronic osteoarthritis commonly performed worldwide. Postoperative pain management has been a key focus in patient care for this procedure. Poorly controlled pain following total knee arthroplasty is associated with decreased ambulation, increased length of hospital stay, increased complications (particularly related to significant opioid use), and overall suboptimal patient recovery. Appropriate postoperative pain management utilizing motor sparing peripheral nerve blocks and periarticular injections has been shown to provide faster, more optimized patient recovery and reduced hospital length of stay in patients undergoing total knee arthroplasty. Adductor canal block (ACB) is a well-studied peripheral nerve block performed for analgesia following total knee arthroplasty. ACB is an effective component of multimodal analgesia providing improved pain control to the peripatellar and intra-articular aspect of the knee joint while largely preserving the strength of the quadriceps muscles1. In addition, perioperative local infiltration analgesia (LIA) performed by the orthopaedic surgical team is a common practice that has been shown to improve short-term postoperative pain relief and reduce total systemic opioid consumption during hospital stay2 for total knee arthroplasty. The Infiltration between the Popliteal Artery and Capsule of the Knee (iPACK) block is a newly described regional anesthesia technique for postoperative analgesia in total knee arthroplasty, performed under ultrasound guidance. It targets the articular branches of the tibial, common peroneal, and obturator nerves in the popliteal region, and aims to provide analgesia to the posterior aspect of the knee joint without compromising lower extremity motor function following total knee arthroplasty. This study aims to determine whether the IPACK block provides additional analgesia (in combination with ACB + LIA) for total knee arthroplasty surgeries. The study will examine how much additional analgesia IPACK provides in the context of an already-optimized regional anesthesia pathway for total knee arthroplasty, which uses ACB + LIA, both modalities that have reasonable existing evidence.

Start: May 2021
The Technology, Exercise Programming, and Activity Prescription for Enhanced Mobility (TEAM) Study

Many individuals with osteoarthritis (OA) (up to 45%) are referred to an orthopaedic surgeon for a joint replacement prematurely or will not be candidates for surgery. These individuals need appropriate (non-operative) care to help reduce their pain and enhance their mobility. We are studying the use of innovative technology to help physicians give physical activity advice for patients to become more active and provide free online resources to help patients understand OA self-management and exercise, especially when they have barriers to accessing formal care. Individuals with OA that are referred to a specialized clinic will receive one of three interventions: usual care (handout on resources), a physical activity prescription by a doctor, or the prescription and a link to a free web-based platform (website) on non-operative management of OA with patient education and exercise videos. Our goal is to help with non-operative management strategies to improve quality of life, reduce pain, improve mobility, and possibly delay or prevent a joint replacement. Osteoarthritis is a condition where people feel joint pain or stiffness. Joints are the body parts where two bones join together with softer material (cartilage) between them. In osteoarthritis, this cartilage wears down. It is the biggest cause for disability worldwide. Helping people with osteoarthritis starts with education, physical activity, and physiotherapy. Doctors can also prescribe braces, injections or medications. For severe osteoarthritis when nothing else helps, surgery can be done to replace the joint. Doctors often refer patients for surgery too soon. Skipping steps of care may mean unnecessary surgery and longer wait times. The Musculoskeletal Rapid Access Clinic (now called Clinic) in London was set up to solve these problems. They screen patients before referring them to a surgeon, and do not refer almost half of patients. Our goal is to support these patients with new ways to make their non-surgical treatment better. The first way is through physical activity 'prescription'. It works well for other chronic conditions and patients say it helps. We don't know how well it works for people with osteoarthritis. Most doctors have little time, training or experience for prescribing physical activity. Technology can make it easier for doctors and patients. We have designed a tool to help doctors prescribe physical activity and a smartphone app to track patient activity. We have also created a free website. This includes patient education, exercise videos, and virtual physiotherapy. This can be important for individuals who can't access in-person care.

Start: May 2021
Incorporating Patient-Reported Outcomes Into Shared Decision Making With Patients With Osteoarthritis of the Hip or Knee

Osteoarthritis (OA) of the knee constitutes a major public health problem. Treatment options for knee OA range from lifestyle changes to pharmacological management to total knee replacement surgery. As a "preference-sensitive" condition, management of OA of the knee is ideally suited for shared decision making (SDM), taking into consideration benefits, risks, and patients' health status, values, and goals. Patient-reported outcomes (PROs) reflect health status from the patient's perspective. For knee OA, relevant PROs include pain and other symptoms, functional status and limitations, and overall health. Prior research indicates that patients with higher baseline physical function and/or poor baseline mental health do not benefit as much from total knee replacement. Still, due to logistical challenges, costs, and disruptions in workflow, PROs have not yet achieved their full potential in clinical care. Musculoskeletal providers at Dell Medical School and UT Health Austin currently collect general and condition-specific PROs from every patient seen in their Musculoskeletal Institute. PROs are collected via an electronic interface and results are pulled into the Athena electronic health record (EHR). Given the promise of combining PRO data with clinical and demographic data, musculoskeletal providers at UT Health Austin have begun utilizing an innovative electronic PRO-based predictive analytic tool at the point of care to guide SDM in patients with knee OA. In this project, we plan to evaluate the clinical effectiveness and impact of the PRO-guided predictive analytic SDM tool and process in a randomized controlled trial in Austin. Outcomes will include decision quality, as reported by patients; treatment decision (surgical vs. non-surgical); and decisional conflict and regret. Our project contributes to AHRQ's strategy to use health IT to improve quality and outcomes by evaluating a tool and process for the use of PRO data at the point of care. The model we are testing puts patients at the center of their care by enabling them to participate in informed decision making by using their personal health data, preferences, and prognostic models. Knowledge gained will be critical to scaling and spreading use of this PRO-guided SDM tool among patients with knee OA nationally.

Start: February 2021
Traditional Versus Alternative Alignment in TKR

As many as 20% of patients are unhappy with the results of total knee replacement (TKR). Various changes to surgical technique have tried to address this but have not led to a significant improvement in the numbers of patients satisfied with their operation. Recently, attention has focussed on alignment of the leg. When viewed from the front, a number of people do not start with a straight, mechanically aligned leg. Traditionally, when implanting a knee replacement, the surgeon tries to put the shin bone half of the knee replacement perpendicular to the floor to equalise stresses on the in and outside of the joint. However, this may result in the alignment of the leg changing considerably, straining the soft tissues around the knee and contributing to dissatisfaction with TKR. There has been a move by some surgeons to change practice, and to implant the TKR in a way that replicates the alignment of the patient's own original knee- alternative alignment. Studies looking at alternative alignment have not shown any loss of satisfaction with results of TKR and indeed are showing some signs that in the short term, function of the knee may be better with the new technique. The research team are planning to run a study comparing the knee replacement used in Exeter- the Triathlon- when put in place using traditional alignment versus using the alternative alignment methods. The outcomes will be assessed in various ways including patient satisfaction questionnaires, measuring muscle strength, flexibility around the knee, and by assessments of alignment of the new knee on X-rays and Computerised Tomography scans. The research team will look at short term results for satisfaction and function of the knee, and in the long term look at wear and survivorship to see if patient satisfaction with TKR can be improved.

Start: October 2018
Protein Turnover in the Osteoarthritic Knee

Rationale: Osteoarthritis (OA) of the knee is a common cause of pain and disability, especially in people over the age of 65. In the current health care system both conservative (e.g. intra-articular injections with corticosteroids) and surgical (total knee replacement, TKR) treatment are applied. Although frequently used, certain effects of these treatments on protein metabolism remain unclear. It is well known that maintenance of different tissues is determined by a dynamic balance between protein synthesis and breakdown rates, with temporary changes in either protein synthesis or breakdown allowing net protein accretion or loss. Though protein supplementation has shown to be an effective nutritional strategy in stimulating muscle protein synthesis, it remains unclear to what extent other musculoskeletal tissues are able to respond to dietary protein supplementation. Therefore, the current study assesses the impact of preoperative protein supplementation on protein synthesis in different musculoskeletal tissues of the knee. Objective: To investigate the effect of preoperative protein supplementation on Hoffa's fat pad, synovium, tendon, bone, muscle, ligament, menisci, and cartilage protein synthesis of the OA knee. Study design: Randomized, parallel (two groups) study design. The intervention group will be compared to the control group. Study population: 24 adults with OA of the knee undergoing TKR. Intervention: Daily 40 g of pre-sleep protein two weeks before TKR or no intervention. Main study parameters/endpoints: Primary study parameters include protein synthesis rates and enrichments of Hoffa's fat pad, synovium, tendon, bone, muscle, ligament, menisci, and cartilage. Secondary parameters include whole-body protein synthesis, breakdown, oxidation, and net balance. Nature and extent of the burden and risks associated with participation, benefit and group relatedness: The risks involved in participating in this study are minimal. There are no potential effects known for the ingestion of protein. Muscle biopsies and tissue collection will be performed during the surgical procedure.

Start: January 2017