Author: Jai Chitnavis
The Cambridge Medical Graduates’ Society Educational Afternoon. Trinity Hall, Cambridge. Saturday 6th July 2019.
Speakers include Dr Richard Pye, Professor Harold Ellis, Dr Cecilia Brassett and Mr Roger Watkins.
Personal outcome data for knee replacements
Mr Chitnavis’ patients Internal Audit data for outcomes of partial and total knee replacements in patients who underwent surgery 1/1/2011 to 31/12/2013
Based on available knee scores
(Hospital for Special Surgery and Knee Society combined score. Maximum is 200)
Total cases = 113
Missing data obviating scoring from before to latest follow-up (minimum 6 months) = 39 replacements
Available scores on 74 knee replacements
Number better after surgery in terms of knee scores: 70 out of 74
Average rise in scores for these was 48 (70 knee replacements)
Number no better after surgery : 4 out of 74.
Average fall in scores for these four was 21 (range of scores: -31,-16,-14,-24)
Complications
Angina, Atrial fibrillation, sacral sore, wound infection warranting debridement and closure (two operations), urinary tract infection, spacer mis-match to Oxford knee (discussed with international expert), stiffness (2 cases), stitch abscess, wound edge overlap.
Average rise in score for entire cohort was 44 (74 knee replacements)
Acknowledgements: Hari Chitnavis who helped collate data.
Calculations by Jai Chitnavis. 22nd October 2014. Raw data available for review.