Does robotic-assisted unicompartmental knee arthroplasty restore native joint line more accurately than with conventional instruments?

The study's primary aim is the restoration of native joint line in patients having robotic-assisted unicondylar knee arthroplasty and conventional unicondylar knee arthroplasty. Literature in the past has demonstrated that reducing the joint line can result in greater failure rates. This is a prospective cohort investigation of patients who had medial UKA between March 2017 and March 2022.

Total Hip Arthroplasty in the Severely Narrowed Femoral Canal by a Fibular Strut Using Knee Arthroscopic Tools: A Case Report and Technical Note.

A 58-year-old-male patient presented with worsening pain and restricted movements of his right hip after undergoing multiple procedures for treatment of an inter-trochanteric fracture. Secondary arthrosis and an incorporated intramedullary fibular cortical bone graft which caused severe narrowing of the medullary canal were observed by imaging. Total hip arthroplasty (THA) using knee arthroscopic tools was performed for preparation of the severely narrowed femoral canal.

Does Balancing a Total Hip Arthroplasty Require a New Paradigm? Functional 3-Dimensional Balancing in Total Hip Arthroplasty.

Background: Traditional principles for successful outcomes in Total Hip Arthroplasty (THA) have relied largely on placing the socket in the native position and trying to restore static anatomical femoral parameters gauged on X-rays or intra-operative measurement. Stability is conventionally achieved by making appropriate changes during the time of trial reduction. Post-operative complications of dislocation and significant Limb Length Discrepancy (LLD) requiring foot wear modification represents opposite ends of the spectrum from a biomechanical perspective and these continue to be relatively high.

Tibial tray rotation and posterior slope increase risk for outliers in coronal alignment.

Aims: The extensive variation in axial rotation of tibial components can lead to coronal plane malalignment. We analyzed the change in coronal alignment induced by tray malrotation.

Methods: We constructed a computer model of knee arthroplasty and used a virtual cutting guide to cut the tibia at 90° to the coronal plane.