BACKGROUND Currently, antegrade intramedullary nailing and minimally invasive plate osteosynthesis (MIPO) represent the main surgical alternatives in distal tibial fractures. However, neither choice is optimal for all bony and soft tissue injuries. The Retrograde Tibial Nail (RTN) is a small-caliber prototype implant, which is introduced through a 2-cm-long incision at the tip of the medial mal...

The purpose of the project is to develop methods and a biomechanical model for virtual testing of fit and interaction of virtual components directly from a Computer Aided Design (CAD) system, specifically for the hearing aid industry. We propose to develop an adaptable biomechanical model and fast methods for physical simulation including contact forces for insertion of the virtual components. ...

This study compared the clinical and biomechanical outcomes of mechanical debridement with and without monopolar radiofrequency energy in treating chondral defects. Patients who were scheduled for arthroscopic procedures (diagnostic, debridement and lavage, and meniscectomy) and consented to biomechanical cartilage stiffness testing comprised the study population. Patients were randomized into ...

Graft necrosis following ACL reconstruction is often associated with the use of autologous grafts. Host cells rather than graft cells contribute to the repair of the tendon-bone interface and the remodeling of the autologous graft. The native tendon-bone interface is not recreated and the biomechanical properties are not restored back to native values. We examined the effects of introducing gap...

STUDY DESIGN Pedicle screw strength or load to failure was biomechanically evaluated, and the geometric characteristics of pedicle screw instrumentation systems were compared. OBJECTIVES To compare the features of pedicle screw systems, and to demonstrate the failure point of the polyaxial pedicle screw head. SUMMARY OF BACKGROUND DATA Many pedicle screw instrumentation systems are currentl...

Biomechanical properties of a vascular graft scaffold can be optimized by studying the effect of genipin crosslinker. Collagen-based scaffolds were prepared from a mixture of rat tail collagen, chitosan and bovine aortic elastin and crosslinked with varying concentrations of genipin. Biomechanical testing results showed that the linear modulus of the uncrosslinked samples had the least modulus ...

BACKGROUND Tibiotalocalcaneal arthrodesis (TTCA) using intramedullary nails is a salvage procedure for many diseases in the ankle and subtalar joint. Despite "newly described intramedullary nails" with specific anatomical shapes there still remain major complications regarding this procedure. The following study presents a modified biomechanical test setup for investigations of the hindfoot. ...

Hypothesis / aims of study Human vaginal wall biomechanical properties have been tested ex vivo in frozen/thawed tissue samples (1), and more recently in fresh anterior vaginal wall samples (2). In vivo testing of human tissues with a cutometer-like device originated with the study of wound healing in plastic surgery. Application to the human vaginal wall is under investigation with inconclusiv...

The Yoga Empowers Seniors Study (YESS) was an intervention development study (IDS) that used biomechanical investigation (high-speed cameras, force platforms, and musculoskeletal modeling) to quantify the physical demands of yoga performance by older adults. Secondarily, the YESS used physical-performance testing, muscle-performance testing , and flexibility and balance assessments to quantify ...