Pinpoint accuracy: guided core biopsy diagnostic accuracy in musculoskeletal lesions.

Background: Core biopsy is integral in the work-up of diagnosis for musculoskeletal lesions. Prior to referral through Christchurch hospital-a tertiary referral centre for sarcomas/musculoskeletal lesions, many patients undertake guided core biopsy in peripheral hospitals. We wished to assess the accuracy of these biopsies undertaken in the peripheral centres and compare to those done in the tertiary setting.

Tibial metaphyseal cones combined with short stems perform as well as long stems in revision total knee arthroplasty.

Backgrounds: There is uncertainty around optimal tibial stem length in revision total knee arthroplasty (rTKA) utilizing a tibial trabecular metal (TM) cone. The purpose of this study was to compare: (1) functional outcomes, (2) radiographic outcomes and (3) implant survivorship in rTKA utilizing TM cones combined with either short stems (SS) or long stems (LS) at minimum 2 years follow-up.

Methods: In this retrospective, multi-centre study, patients undergoing rTKA utilizing a TM cone between 2008 and 2019 were included.