The effect of post-operative mechanical axis alignment on the survival of primary total knee replacements after a follow-up of 15 years

2011 ◽  
Vol 93-B (9) ◽  
pp. 1217-1222 ◽  
Author(s):  
T. J. Bonner ◽  
W. G. P. Eardley ◽  
P. Patterson ◽  
P. J. Gregg
Keyword(s):  
Mechanical Axis ◽  
Total Knee Replacements ◽  
Knee Replacements ◽  
Axis Alignment ◽  
Total Knee ◽  
Primary Total Knee

scholarly journals The Effect of Total Knee Replacement on Employment in Patients Under 60 Years of Age

2009 ◽  
Vol 91 (5) ◽  
pp. 410-413 ◽  
Author(s):  
H Lyall ◽  
John Ireland ◽  
MY El-Zebdeh
Keyword(s):  
Total Knee Replacement ◽  
Knee Replacement ◽  
Employment Status ◽  
Postal Questionnaire ◽  
Total Knee Replacements ◽  
Primary Total Knee Replacement ◽  
Knee Replacements ◽  
Total Knee ◽  
Primary Total Knee

INTRODUCTION The effect of primary total knee replacement on the employment status of 56 patients under 60 years of age was examined at a mean follow-up of 64 months. PATIENTS AND METHODS A total of 56 primary total knee replacements performed on patients under the age of 60 years by two surgeons between 1996 and 2003 were retrospectively assessed by postal questionnaire. Patients were selected from databases held at Holly House and Newham Hospital NHS Trust. RESULTS Overall, 97.5% of patients who were employed before their operation, returned to their previous work. However, in patients not working prior to total knee replacement none were employed after their operation. CONCLUSIONS Total knee replacement may be a valuable tool to help some patients to continue working but may not affect patients who are already unemployed.

Early failures among 7,174 primary total knee replacements: A follow-up study from the Norwegian Arthroplasty Register 1994-2000

2002 ◽  
Vol 73 (2) ◽  
pp. 117-129 ◽  
Author(s):  
Ove Furnes ◽  
Birgitte Espehaug ◽  
Stein Atle Lie ◽  
Stein Emil Vollset ◽  
Lars Birger Engesaeter ◽  
...  
Keyword(s):  
Arthroplasty Register ◽  
Total Knee Replacements ◽  
Follow Up Study ◽  
Knee Replacements ◽  
Early Failures ◽  
Total Knee ◽  
Norwegian Arthroplasty Register ◽  
Primary Total Knee

scholarly journals Is there a need for early post-operative x-rays in primary total knee replacements? Experience of a centre in the UK

2012 ◽  
Vol 94 (3) ◽  
pp. 199-200 ◽  
Author(s):  
S Hassan ◽  
A Wall ◽  
B Ayyawamy ◽  
S Rogers ◽  
SP Mills ◽  
...  
Keyword(s):  
Tibial Fracture ◽  
Operative Management ◽  
X Rays ◽  
Inferior Pole ◽  
Total Knee Replacements ◽  
Knee Replacements ◽  
Total Knee ◽  
The Uk ◽  
Primary Total Knee

INTRODUCTION Early post-operative x-rays are often taken in total knee replacements (TKRs). Patient mobilisation may be delayed until these x-rays are obtained and this may prolong discharge. The aim of this study was to assess the value of such early x-rays and whether they influenced the early post-operative management of these patients. METHODS A total of 624 consecutive TKRs performed at the Blackpool Victoria Hospital over a 34-month period were evaluated. Plain anteroposterior and lateral x-rays were examined. RESULTS Two patients were found to have significant abnormalities: an undisplaced peri prosthetic tibial fracture and a partial inferior pole patellar avulsion. Neither of these required further treatment or influenced mobility. No other complications were noted that changed routine post-operative management. CONCLUSIONS These results question the need for immediate x-rays in primary TKRs.

scholarly journals Outcome & Survival Analysis of Conventional Measured Resection, Neutral Alignment Attune TKA vs CAS Anatomic Tibia, Balanced Femur, Constitutional Alignment Attune TKA

2017 ◽  
Vol 5 (5_suppl5) ◽  
pp. 2325967117S0015 ◽  
Author(s):  
Mark Clatworthy
Keyword(s):  
Mechanical Axis ◽  
Computer Assisted ◽  
Joint Registry ◽  
Total Knee Replacements ◽  
Balanced Approach ◽  
Measured Resection ◽  
Knee Replacements ◽  
Total Knee ◽  
Neutral Alignment ◽  
Oxford Score

Objectives: Arthroplasty knee surgeons have traditionally performed a measured resection technique with a neutral mechanical axis. We have recently developed a new total knee arthroplasty technique whereby the tibia is cut anatomically and the femoral component position is determined using a balanced approach utilizing a computer assisted ligament tension device with aim of restoring constitutional alignment. This study compares the Oxford scores and survival of these two techniques for Attune TKA’s. Method: The New Zealand Joint Registry has requested Oxford Knee Scores at six months on all Attune Total Knee Replacements performed. 1088 scores have been returned. 716 have been performed using a conventional measured resection technique aiming for a neutral mechanical axis. 362 have been performed using the CAS anatomic tibia, balanced femur (ATBF) technique aiming for constitutional alignment. Oxford scores are compared alone and with a multivariate analysis including age, sex, surgeon level, fixed vs mobile, public vs private, operative time and cruciate retaining vs cruciate substituting Results: Mean Oxford Conventional TKA univariate Oxford Score is 38.1 Mean Oxford CAS ATBF TKA univariate Oxford Score is 40.7 p=<0.001 Mean Oxford Conventional TKA multivariate Oxford Score is 36.9 Mean Oxford CAS ATBF TKA multivariate Oxford Score is 39.1 p=<0.001 The CAS ATBF had 10% less poor and fair scores and 15% more excellent scores Non infection conventional TKA has 0.71 failures per 100 component years Non infection CAS ATBF TKA has 0.25 failures per 100 component years. Conclusion: The CAS assisted anatomic tibia balanced femur TKA has a significantly higher Oxford score with a three times lower non infection failure rate at three years

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