2 Clinical Trials for Various Conditions
The goal of this observational clinical trial is to determine whether the posterior superior iliac spine of the hip or the humerus of the arm will produce larger amounts of bone marrow when harvested during surgery. Also, the secondary goal of this study is to determine the effects of the patient's position on the quantity of cells harvested from the hip, namely lying on back (prone) vs. lying on side (lateral decubitus). The main questions it aims to answer are: * Will the hip or the arm have more bone marrow extracted? * Does a patient lying in lateral decubitus position produce more bone marrow than lying in the prone position? Participants that are to undergo rotator-cuff repair are eligible for this study. During the participant's repair, bone marrow will be extracted from the arm and from the hip. Half of the eligible participants will have bone marrow extracted from the hip while lying on their side, while the other half will have bone marrow extracted from the hip while lying on their back. Researchers will compare the results from both extraction sites on each patient, as well as compare results of the two patient position groups.
Rotator cuff tears can usually be repaired with excellent results, however some chronic, extensive rotator cuff tears are not reparable secondary to tendon retraction with inelasticity, muscle atrophy, and fatty infiltration. Arthroscopic superior capsular reconstruction (SCR) utilizing allograft or autograft tissue has been shown to restore superior glenohumeral stability and function of the shoulder joint in patients with irreparable rotator cuff tears. Grafts utilized for SCR have included fascia lata, hamstring autograft, human acellular dermal tissue matrix (HADTM), and acellular porcine dermal xenograft. Due to donor morbidity associated with autografts and the graft rejection potential of xenograft, HADTM has become a common graft of choice for SCR. The purpose of this study is to determine if patients treated with SCR using AlloMend have acceptable clinical and anatomic outcomes.