Clinical trials

There are no published prospective studies that compared 2-year functional outcomes of RTSA and anatomic TSA for the treatment of primary glenohumeral osteoarthritis with intact rotator cuffs and no excessive glenoid retroversion. The primary goal of our prospective randomized study is to determine whether RTSA have at least as good results as anatomic TSA (non-inferiority), in patients with glenohumeral osteoarthritis, without rotator cuff tears nor significant glenoid retroversion.

Most rehabilitation protocols require patients to train the affected limbs with high regularity, following repetitive cycles of exercises, in order to recover mobility and strength. Nonetheless, the repetitive nature of these exercises can demotivate patients leading to less intense and committed training, if not ending with a lack of compliance toward the prescribed exercises, ultimately leading to a suboptimal recovery. For this reason, several research groups are investigating solutions to help patients in this process, using robotic support or protocols assisted by virtual reality (VR). Most of these studies have shown benefits, notably in the field of post-stroke rehabilitation, however numerous types of physical therapies have not been investigated yet. Therefore, the main goal of this study will be to explore if the combination of modern motion-tracking and VR can provide significant functional outcomes for the treatment of the most common upper limb pathologies. The investigators created a set of exergames designed to lead the patients through a gamified version of part of physiotherapy (PT). This modified therapy is expected to offer several benefits to the treatment with respect to a purely conventional therapy: (i) improved patient's motivation and commitment to the exercises; (ii) constant evaluation of the patient's performance, thanks to the use of motion tracking; (iii) session-by-session tuning of exercises difficulty; (iv) clear progress traceability; (v) real-time alerts in case of problematic or compensatory movements; (vi) measurement and evaluation of new metrics of movements quality that were not possible in conventional therapy setups. To evaluate the feasibility of this project, the investigators would like to test the VR system on a short series of patients during four sessions.

The long head of the biceps (LHB) tendon is thought to be a common source of shoulder pain and dysfunction in patients with rotator cuff pathology. Tenotomy and tenodesis have been shown to produce favourable and comparable results in treating LHB lesions, but a controversy still exists regarding the treatment of choice. Some suggest that tenotomy should be reserved for older, low-demand patients, while tenodesis should be performed in younger patients and those who engage in heavy labor. Proponents of tenotomy suggest that this is a technically easy procedure that leads to easy rehabilitation and fast return to activity with a low complication and reoperation rate. However, those who support LHB tenodesis list good preservation of elbow flexion and supination strength, improvement of functional scores, elimination of pain, and avoidance of cosmetic deformity as benefits of the procedure. Alternatively, the LHB can be maintained in the joint without tenodesis or tenotomy. In fact, it has not been clearly shown that LHB tenodesis or tenotomy leads to improved outcomes compared to leaving the biceps tendon intact.

The primary objective of the study is to evaluate the impact of ACL injury and ACL reconstruction on voluntary activation during maximal voluntary contraction (measured by neurophysiological parameters) according to the contraction mode. The goal is to provide elements of knowledge to clinicians about the mechanisms of the activation failure depending on contraction mode, but also the resulting adapted clinical recommendations for conducting rehabilitation, and particularly for the use of different contraction modes. The main hypothesis is that activation failure is not equal according to the contraction mode during maximal voluntary contractions and neurophysiological parameters will be decreased in comparison with non-injured subjects. Secondary objectives are: * To analyze the evolution of neurophysiological parameters between sessions interspaced by several months according to the contraction mode. * To observe this time evolution depending on the treatment strategy chosen: rehabilitation or surgery plus rehabilitation.

Different treatment options are available for massive or irreparable rotator cuff tears. An arthroscopic or an open repair approach is possible in the majority of cases and functional outcomes are improved, particularly when a complete arthroscopic repair can be achieved. However, the healing rate of massive rotator cuff tears after repair may remain low and failure of healing is associated with progression of arthritis. An alternative to arthroscopic or open repair is reverse shoulder arthroplasty which decreases pain and improves function, active shoulder elevation and quality of life. The primary goal of this prospective multicentric randomized study is to determine if there is a difference of functional outcomes between rotator cuff repair (RCR) repair and reverse shoulder arthroplasty (RSA).