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Clinical Studies

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  • Does Anesthetic Contribute to Symptomatic Relief in Corticosteroid Injections for Knee Osteoarthritis? A Double-Blind Randomized Trial Comparing Corticosteroid/Ropivacaine Versus Corticosteroid/Saline Injections Rochester, Minn.

    Corticosteroid injections are commonly used for the symptomatic treatment of knee osteoarthritis. Common practice is to inject the joint with a combination of corticosteroid and local anesthetic, with the rationale of providing longer duration pain relief with the corticosteroid and immediate, though short duration relief with the anesthetic. However, multiple in vitro and animal studies have shown that local anesthetic may be harmful to chondrocytes. Despite this data, use of intra-articular anesthetic remains widespread. Many clinicians believe incorporating the anesthetic is important because it can provide immediate pain relief and facilitate patient confidence in the treatment program. However, there is no published data to validate this reasoning. Therefore, the anesthetic has unknown clinical benefit and may have adverse effects on articular cartilage. In light of this, the investigators question the routine use of anesthetics in joint injections. The purpose of this study is to compare the effects of knee joint injections using: 1) corticosteroid with local anesthetic versus 2) corticosteroid with normal saline.

  • Efficacy of Digital Home-Exercise Therapy Application For Patients With Non-Surgical Knee Injuries: A Randomized, Controlled Trial Rochester, Minn., Minneapolis, Minn.

    The purpose of this study is to test the feasibility of a Digital Home-Exercise Therapy Application (DETP) by conducting a randomized, controlled, non-inferiority study to compare the DETP to conventional physical therapy (PT).

  • Local Anesthesia for Ultrasound Guided Hip Joint Injections: A Double-Blinded Randomized Controlled Trial of Bacteriostatic Saline Versus Buffered Lidocaine Rochester, Minn.

    Local anesthesia is commonly used to reduce pain during joint injections, particularly for deep joints like the hip. Lidocaine is the most commonly used local anesthetic in most medical practices. It is well known that lidocaine infiltration itself is painful. Many strategies have been studied to minimize pain associated with lidocaine administration, including buffering, warming, and slowing infiltration rate. Bacteriostatic saline (BS) is an alternative local anesthetic that has been shown to be less painful when injected into subcutaneous tissues compared with lidocaine. However, BS use has not been widely implemented for local anesthesia, and it has not been studied in the context of joint injections. The purpose of this study is to compare infiltration pain and anesthetic efficacy between lidocaine and BS for ultrasound (US) guided intraarticular hip injections.

  • Ultrasound Guided Tendon Scraping Outcomes: a Retrospective Case Series Rochester, Minn.

    The purpose of this study is to determine and describe the expected outcomes (degree of pain relief, duration of pain relief, return to sport or desired activity, and secondary treatment interventions sought) for individuals who undergo ultrasound guided Achilles and patellar tendon scraping for tendinopathy.

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