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  • RSU is advertising for shoulder fellowship to start in August-September 2019 and begining of 2020
    a post-CCT shoulder fellowship for Two years. please send CV to Prof. Levy's PA Charlotte Bourne and arrange a visit to meet Prof Levy and Mr Sforza. [Read more]
  • For Patients, GPs & Physiotherapies - New!!! NHS Choose & Book
    The Unit at Berkshire Independent Hospital is open for NHS patients through Choose & Book (Extended Choice Network).
    Book online
    or contact the secretaries. [Read more]
  • Excellent clinical results over more than 13 years with the Verso rTSA.
    Very high patient satisfaction and return to full activities including sports. [Read more]
  • The least complications with the Verso shoulder compared with other reverse shoulder systems
    From the Royal National Orthopaedic Hospital, Birmingham, UK
    S. Robati, M.K. Shahid, J. Allport, A. Ray and G. Sforza
    Bone & Joint Journal 2013, Vol. 95-B Supp. 25-27

    Complication Rates From Three Commonly Used Reverse Polarity Total Shoulder Replacements: A Minimum Two Year Follow-Up Of 64 Cases
     
  • Excellent results with the Verso TSA were published in Italy! 
    A group of oorthopaedic surgeons from northern Italy from Piacenza and Verona published their first few years experience with the stemless reverse TSA - The VERSO. 
    They present Excellent clinical and radiologic results that mirror the results of the designing centre!
    (Read more) [Read more]
  • Applications for the Reading shoulder fellowship
    starting in late 2019 and for 2020
    is now open.
    Please apply by visiting the Unit and sending your CV to Jan Barker
    Visits to the Reading shoulder unit are welcome - Please liaise with Prof. Levy's PA Charlotte Bourne
    [Read more]
  • IDO Isometer Shoulder Muscle Strength Gauge.

    Available to buy online in idorth.com - Innovative Design Orthopaedics - [Read more]
  • Groundbreaking research from the Reading Shoulder Unit by Prof. Ofer Levy and his team regarding Propionibacterium Acnes and shoulder arthritis. 
    Propionibacterium acnes: an underestimated etiology in the pathogenesis of osteoarthritis?

    This is a very important article in that it suggests the presence of propionibacterium in previously unoperated shoulders with arthritis and furthermore that 'aseptic' failures of shoulder arthroplasty may, in fact, be related to indolent infections with this slow growing organism.
    Read comments by Dr Frederick A. Matsen III, M.D.
    [Read more]
  • Listen to the BBC Radio4 programme - a day in the operating theatre at the Reading Shoulder Unit at the Royal Berkshire Hospital - Case Notes with Dr Mark Porter on Regional anaesthesia for shoulder surgery [Read more]
  • Art at the Reading Shoulder and Elbow Centre
    Original fine art prints all dealing with human body in different situations by four artists are exhibited in the Reading Shoulder and Elbow centre 

    The prints on display are available to buy, with the artist contributing a donation to research. For more information please contact the secretaries in the unit.

    [Read more]
  • The Verso stemless rTSA is approved in Australia & New Zealand by the TGA.
    and it was launched and in increase use in Australia. 

Primary stability in reversed-anatomy glenoid components

Abstract: Reversed-anatomy shoulder replacement is advocated for patients with poor rotator

cuff condition, for whom an anatomical reconstruction would provide little or no stability.

Modern generations of this concept appear to be performing well in the short-term to midterm

clinical follow-up. These designs are almost always non-cemented, requiring a high degree of

primary stability to encourage bone on-growth and so to establish long-term fixation. Six

different inverse-anatomy glenoid implants, currently on the market and encompassing a

broad range of geometrical differences, were compared on the basis of their ability to impart

primary stability through the minimization of interface micromotions. Fixing screws were only

included in the supero-inferior direction in appropriate implants and were always inclined at

the steepest available angle possible during surgery (up to a maximum of 30u). The extent of

predicted bony on-growth was, of course, highly dependent on the threshold for interface

micromotion. In some instances an additional 30 per cent of the interface was predicted to

promote bone on-growth when the threshold was raised from 20 mm to 50mm. With maximum

thresholds of micromotion for bone on-growth set to 30 mm, the Zimmer Anatomical device

was found to be the most stable of the series of the six designs tested herein, achieving an

additional 3 per cent (by surface area) of bone on-growth above the closest peer product

(Biomet Verso). When this threshold was raised to 50 mm, the Biomet Verso design was most

stable (3 per cent above the second-most stable design, the Zimmer Anatomical). Peak

micromotions were not a good indicator of the predicted area of bone on-growth and could

lead to some misinterpretation of the implant’s overall performance. All but one of the

implants tested herein provided primary stability sufficient to resist motions in excess of

150 mm at the interface.

Keywords: primary stability, reversed anatomy, shoulder replacement, glenoid components

(Proceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine 2009 223: 805 DOI: 10.1243/09544119JEIM557)