- Shoulder Injury and Treatment
- Pelvic and Acetabular Injuries
- Shoulder and Clavicle Injuries
- Spinal Fractures and Fixation Techniques
- Spine and Intervertebral Disc Pathology
- Nerve Injury and Rehabilitation
- Orthopaedic implants and arthroplasty
- Hip and Femur Fractures
- Hip disorders and treatments
- Pregnancy-related medical research
- Musculoskeletal pain and rehabilitation
- Trauma and Emergency Care Studies
- Trauma Management and Diagnosis
- Scoliosis diagnosis and treatment
- Total Knee Arthroplasty Outcomes
- Bone fractures and treatments
- Abdominal Trauma and Injuries
- Orthopedic Surgery and Rehabilitation
- Lower Extremity Biomechanics and Pathologies
- Foot and Ankle Surgery
- Trauma, Hemostasis, Coagulopathy, Resuscitation
- Bone and Joint Diseases
- Emergency and Acute Care Studies
- Hernia repair and management
- Heterotopic Ossification and Related Conditions
University of Zurich
2013-2024
University Hospital of Zurich
2013-2024
Hirslanden Klinik Im Park
2018
Orthopaedic Trauma Association
2018
University Clinic of Traumatology
2013-2015
University of Maryland, Baltimore
2006-2014
University of Maryland Medical System
2006-2014
Universitätsklinik Balgrist
2003-2011
Primary Source
2010
University of Maryland Medical Center
2007-2010
The Delta III reverse-ball-and-socket total shoulder implant is designed to restore overhead function in the presence of irreparable rotator cuff deficiency by using intact deltoid muscle and stability provided prosthetic design. Our purpose was evaluate clinical radiographic results this arthroplasty a consecutive series shoulders with painful pseudoparesis due irreversible loss function.Fifty-eight patients moderate-to-severe pain active anterior elevation <90 degrees an tear were treated...
Factors predisposing to tearing of the rotator cuff are poorly understood. We have observed that acromion patients with a tear very often appears large on anteroposterior radiographs or during surgery. The purpose this study was quantify lateral extension in full-thickness and an intact cuff.The assessed true made arm neutral rotation. distance from glenoid plane border divided by aspect humeral head calculate index. This index determined group 102 (average age, 65.0 years) proven tear, age...
We treated 34 consecutive articular fractures of the proximal humerus in 33 patients with good bone quality by open reduction and internal fixation. Anatomical or nearly anatomical was achieved 30, at a mean follow-up 63 months (25 to 131), complete partial avascular necrosis had occurred 12 cases (35%). Two subsequently underwent arthroplasty six further required additional surgery. The 32 who did not require obtained Constant score 78 points 89% an age- gender-matched normal (66 76%...
Background: The Delta III reverse-ball-and-socket total shoulder implant is designed to restore overhead function in the presence of irreparable rotator cuff deficiency by using intact deltoid muscle and stability provided prosthetic design. Our purpose was evaluate clinical radiographic results this arthroplasty a consecutive series shoulders with painful pseudoparesis due irreversible loss function. Methods: Fifty-eight patients moderate-to-severe pain active anterior elevation <90° an...
Association Between Rotator Cuff Abnormalities and Reduced Acromiohumeral DistanceNadja Saupe1, Christian W. A. Pfirrmann1, Marius R. Schmid1, Bernhard Jost2, Clément M. L. Werner2 Marco Zanetti1Audio Available | Share
A reversed Delta III total shoulder prosthesis was retrieved post-mortem, eight months after implantation. significant notch evident at the inferior pole of scapular neck which extended beyond fixation screw. This bone loss associated with a corresponding, erosive defect polyethylene cup. Histological examination revealed chronic foreign-body reaction in joint capsule. There were, however, no histological signs loosening glenoid base plate and stability prosthetic articulation only slightly...
Recent studies have suggested that tenotomy and repair of the subscapularis tendon carried out for anterior approaches to shoulder can be followed by failure changes resulting in permanent loss function. We hypothesized release with use a superficial osteotomy lesser tuberosity two opposing bone surfaces would lead consistent bone-to-bone healing, which possible monitor radiographically, satisfactory clinical structural outcomes.Thirty-nine shoulders thirty-six consecutive patients who, at...
Background: Capsulorrhaphy of the glenohumeral joint is a common surgical procedure for treatment instability caused by increased capsular laxity. The effect capsulorrhaphy on range motion shoulder poorly understood. Methods: We simulated localized contractures selective plications in eight human cadaveric shoulders and studied such passive abduction, flexion, external internal rotation different degrees abduction. A 0.5 or 1-N-m torque was applied to humerus, measured with electronic...
Background: Glenoid loosening continues to be the primary reason for failure of total shoulder arthroplasty. The purpose this study was evaluate, with use a sensitive and reproducible imaging method, radiographic clinical results replacement pegged, cemented polyethylene glenoid implant. Methods: Forty-three patients (forty-seven shoulders) underwent component four threaded pegs. were examined clinically, fluoroscopically guided radiographs, computed tomography at an average forty months. In...
Retrospective radiographic review.To determine whether clinical factors or common classification systems can predict the radiologic outcome of short-segment thoracolumbar fracture fixation.Previous reports have indicated that fixation might not be appropriate for highly comminuted fractures patients with multiple traumatic injuries.We conducted a retrospective review 46 treated posterior instrumentation to rate correction loss and failure in relation Load Sharing Classification Spine...