Current Research Projects Donor Supported Spine Hoag Orthopedics Spinal Disorders Clinical Registry Total Joint Hoag Orthopedics Total Joint Arthroplasty Loneliness Study Complications of Direct Anterior Hip Approach for Total Hip Arthroplasty in Relation to BM Study Outcomes of Primary Total Knee Arthroplasty Using Hypoallergenic Implants Study Location and Severity of Pain One Year After Primary Total Knee Arthroplasty Study Comparing Changes in Pelvic Tilt Between Sit to Stand and Contralateral Hip Flexion to Stand Study Retrospective Comparison of Oral and Intravenous Tranexamic Acid in Reverse Total Shoulder Arthroplasty Study DAIR versus 2 stage revision Comparison Study Outcomes in Cemented versus Collared Non-cemented Stem Study Sports Medicine Retrospective Comparison of Oral and Intravenous Tranexamic Acid in Reverse Total Shoulder Arthroplasty Study Spherical Exoskeleton for the Measurement of Shoulder Movement Study Radiographic Outcomes of Augmented Base Plate in Reverse Total Shoulder Arthroplasty Study Retrospective Comparison of Return to OR for Arthrofibrosis or Cyclops Lesion following Primary Anterior Cruciate Ligament Reconstruction with Quadriceps Tendon autograft vs Patellar Bone Tendon Bone Autograft Study Identification of Pincer Lesions in Patients with Femoroacetabular Impingement Through Standard Radiographs Compared to 3D CT Study Health Policy and Management The Incidence of Preoperative Anxiety Prior to Orthopedic Surgery Study Industry Sponsored Spine A prospective, multicenter study evaluating the safety and performance of interbody implants for the treatment of patients with degenerative conditions of the thoracic and/or lumbar spine A prospective, multicenter study evaluating the safety and performance of interbody implants for the treatment of patients with degenerative conditions of the cervical spine Long-Term Assessment of the Safety and Performance of the NuVasive Simplify Disc POST APPROVAL STUDY PROTOCOL FOR THE TWO LEVEL SIMPLIFY® CERVICAL ARTIFICIAL DISC A Multi-Center, Prospective, Historically-Controlled Pivotal Trial Comparing The Safety And Effectiveness Of The Synergy Disc To Anterior Cervical Discectomy And Fusion In Patients With One-Level Symptomatic Cervical Degenerative Disc Disease (DDD). Total Joint Establishing a Prospective Clinical Outcomes Registry/Database from Joint Replacement Surgery mymobility® Clinical Study: A Prospective Multicenter Longitudinal Cohort Study of the mymobility Platform Short-, Medium-, and Long-term Survivorship of Attune Primary Total Knee Prostheses Sports Medicine Pacira Genicular Outcomes Registry