1.1 A 160μA Biopotential Acquisition ASIC with Fully Integrated IA and Motion-Artifact Suppression .. 2 1.2 On-Chip Gain Reconfigurable 1.2V 24μW Chopping Instrumentation Amplifier with Automatic Resistor Matching in 0.13μm CMOS ...................................................................................................... 5 1.3 A Capacitively Coupled Chopper Instrumentation Amplifier wi...

Purpose We investigated two major factors which affect the overall accuracy of patient specific instrumentation (PSI) for cup insertion in total hip arthroplasty; 1) the fitting of PSI on the bony surface, and 2) deviation of cup impaction under a linear visual reference. Methods Using 12 cadaveric hips, we inserted Kirschner wire (K-wire) through PSI on the acetabulum for the linear reference ...

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Patient-specific instrumentation systems are entering into clinical practice in total knee replacement, but validation tests have yet to determine the accuracy of replicating computer-based plans during surgery. We performed a fluoroscopic analysis to assess the final implant location with respect to the corresponding preoperative plan. Forty-four patients were analyzed after using a patient-sp...

AIMS Accurate placement of the acetabular component during total hip arthroplasty (THA) is an important factor in the success of the procedure. However, the reported accuracy varies greatly and is dependent upon whether free hand or navigated techniques are used. The aim of this study was to assess the accuracy of an instrument system that incorporates 3D printed, patient-specific guides design...

Total knee arthroplasty (TKA) is a surgical procedure of paramount relevance that restores a substantial degree of function in arthritic knees. Increased consideration has been given to the influence of limb alignment on longevity after TKA, as errors in component placement can be associated with inferior function and compromised long-term performance. Consequently, numerous studies comparing p...

Patient-specific instrumentation (PSI) has been introduced as a tool to increase the accuracy of total knee arthroplasty (TKA) compared with conventional instrumentation (CLI). However, previous studies have shown inconsistent results. The authors conducted a meta-analysis to compare the performance of PSI to CLI in TKA. PubMed, EMBASE, and Cochrane Central Register of Controlled Trials electro...

FOR BONE AND JOINT JOURNAL (BJJ) MOULDING THE FURTURE OF PATIENT SPECIFIC INSTRUMENTATION – THESHAPE OF THINGS TO COME Alastair Darwood1, Robin Richards2, Peter Reilly3, Roger Emery4, Ferdinando Rodriguez yBaena5 1. Prometheus Surgical ltd., London, United Kingdom2. Cavendish Implants, London, United Kingdom3. Imperial College NHS Trust, Londo...

Introduction: Currently, the only treatment for end stage arthritis in the knee is total knee replacement (TKR). Even though TKR has improved over the years, with implants having greater longevity, patient satisfaction following TKR has not improved, with approximately 20% of patients recording dissatisfaction with their new knee joint. Manufacturers have attempted to solve this issue with pati...