… Disclosures and COI: Cyrill Dennler and Nico Akhavan Safa contributed equally to this
publication. The project was funded by the Balgrist University Hospital, which receives funding …

Background Indications and outcomes in lumbar spinal fusion for degenerative disease are
notoriously heterogenous. Selected subsets of patients show remarkable benefit. However, …

Purpose Hypoplastic pedicles of the thoracolumbar spine (<5 mm diameter) are often found
in syndromic deformities of the spine and pose a challenge in pedicle screw instrumentation. …

Background: Total hip (THA) and total knee arthroplasty (TKA) are becoming an increasingly
standard procedure in the whole world. In conjunction with an aging population and …

… Akhavan, Nico Safa. Augmented reality based Navigation increases precision of sacral
alar iliac (SAI) screw insertion. 2021, University of Zurich, Faculty of Medicine. …

Introduction: The Vancouver algorithm recommends revision arthroplasty (RA) for Vancouver
type B2 (VTB2) fractures. However, open reduction and internal fixation (ORIF) using …

Purpose: A traumatic periprosthetic fracture (PPF) is a long-term complication of total hip
arthroplasty. Treatment options include revision, open reposition and internal fixation (ORIF), …

Introduction: Proximal humerus fractures (PHF) constitute the majority of the most common
osteoporotic fractures. Bone density measurements can affect treatment methods and …

Introduction: The treatment of distal femur fractures in geriatric patients is challenging and
has a high perioperative morbidity and mortality. Treatments have evolved significantly in the …

Simultaneous bilateral neck of femur fracture is rare. There have been few reports of such a
condition in the literature. This uncommon pattern of injury has been associated with high-…