scholarly journals Degree of coronal alignment correction can’t predict knee function in total knee replacement

BMC Surgery ◽  
2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Shibai Zhu ◽  
Xiaotian Zhang ◽  
Xi Chen ◽  
Yiou Wang ◽  
Shanni Li ◽  
...  
Keyword(s):  
Total Knee Replacement ◽  
Knee Replacement ◽  
Functional Score ◽  
Coronal Alignment ◽  
Level Of Evidence ◽  
Correction Rate ◽  
Total Knee ◽  
Grouping Method ◽  
Hss Score

Abstract Background Whether neutral alignment brings better clinical outcomes is controversial. Consideration of the preoperative knee condition of patients and some limitations of previous studies, we suggested that other index may be more important than a generic target of 0° ± 3° of a neutral axis to reflect changes in coronal alignment after total knee replacement (TKR). The purpose of this study was to explore the relationship between alignment and functional outcome with a new grouping method and the concept of correction rate. Methods The study included 358 knees, the mean follow-up period was 3.62 years. A new grouping method was adopted to divide patients into three groups based on the degree of correction of mechanical femoral—tibial angle (MFTA): under-correction (n = 128), neutral (n = 209) and over-correction (n = 21). Hospital for Special Surgery (HSS) score were compared among the 3 groups (ANOVA with or without LSD t-test). In addition, we also attempt to further explore whether the concept of correction rate can predict postoperative functional score (Simple linear correlation analysis). Results HSS score showed significant improvement in all groups. There was no difference in HSS score (88.27 vs 88 vs 85.62) (p = 0.88) or incremental scores (26.23 vs 25.22 vs 22.88) (p = 0.25) based on the postoperative alignment category for the degree of correction of MFTA at the last follow-up. The correlational analyses also didn’t show any positive results (r = -0.01 p = 0.95, r = -0.01 p = 0.97, r = 0.11 p = 0.15, r = 0.01 p = 0.90). Conclusion Categorization of optimal coronal alignment after TKR may be impractical. But we still believe that the concept of correction rate and new grouping method are worthy of research which can reflects the preoperative knee condition and the change of coronal alignment. Perhaps it can be better used in TKR in the future. Level of evidence: III.

scholarly journals Degree of Coronal Alignment Correction Can’t Predict Knee Function in Total Knee Replacement

2021 ◽  
Author(s):  
Shibai Zhu ◽  
Xiaotian Zhang ◽  
Xi Chen ◽  
Yiou Wang ◽  
Shanni Li ◽  
...  
Keyword(s):  
Functional Score ◽  
Coronal Alignment ◽  
Level Of Evidence ◽  
Correction Rate ◽  
Alignment Correction ◽  
Total Knee ◽  
Grouping Method ◽  
Hss Score ◽  
Neutral Alignment

Abstract Background: Whether neutral alignment brings better clinical outcomes is controversial. Consideration of the preoperative knee condition of patients and some limitations of previous studies, we suggested that other index may be more important than a generic target of 0° ± 3° of a neutral axis to reflect changes in coronal alignment after total knee replacement (TKR). The purpose of this study was to explore the relationship between alignment and functional outcome with a new grouping method and the concept of correction rate. Methods: The study included 358 knees, the mean follow-up period was 3.62 years. A new grouping method was adopted to divide patients into three groups based on the degree of correction of mechanical femoral – tibial angle (MFTA): under-correction (n = 128), neutral (n = 209) and over-correction (n = 21). Hospital for Special Surgery (HSS) score were compared among the 3 groups. In addition, we also attempt to further explore whether the concept of correction rate can predict postoperative functional score. Results: HSS score showed significant improvement in all groups. There was no difference in HSS score (88.27 vs 88 vs 85.62)or incremental scores (26.23 vs 25.22 vs 22.88) based on the postoperative alignment category for the degree of correction of MFTA at the last follow-up. The correlational analyses also didn’t show any positive results.Conclusion: TKR is a soft tissue procedure and clinical outcome depends on many factors, only reaching neutral alignment after surgery may not mean a good clinical result. Therefore, categorization of optimal coronal alignment after TKR may be impractical. But we still believe that the concept of correction rate and new grouping method are worthy of research which can reflects the preoperative knee condition and the change of coronal alignment. Perhaps it can be better used in TKR in the future. Level of evidence: III.

scholarly journals Degree of Coronal Alignment Correction Can’t Predict Knee Function in Total Knee Replacement

2020 ◽  
Author(s):  
Shibai Zhu ◽  
Xi Chen ◽  
Yiou Wang ◽  
Wenwei Qian ◽  
Huiming Peng ◽  
...  
Keyword(s):  
Total Knee Replacement ◽  
Knee Replacement ◽  
Functional Score ◽  
Coronal Alignment ◽  
Level Of Evidence ◽  
Correction Rate ◽  
Alignment Correction ◽  
Total Knee ◽  
Grouping Method ◽  
Neutral Alignment

Abstract Background: Whether neutral alignment brings better clinical outcomes is controversial. Consideration of the preoperative knee condition of patients and some limitations of previous studies, we suggested that other index may be more important than a generic target of 0° ± 3° of a neutral axis to reflect changes in coronal alignment after total knee replacement (TKR). The purpose of this study was to explore the relationship between alignment and functional outcome with a new grouping method and the concept of correction rate. Methods: A new grouping method was adopted to divide patients into three groups based on the degree of correction of mechanical femoral-tibial angle (MFTA): neutral, under and over-correction. Hospital for Special Surgery (HSS) score were compared among the 3 groups. In addition, we also attempt to further explore whether the concept of correction rate can predict postoperative functional score. Results: HSS showed significant improvement in all groups. There was no difference in HSS or incremental scores based on the postoperative alignment category for the degree of correction of MFTA. The correlational analyses also didn’t find any relevant results.Conclusion: TKR is a soft tissue procedure and clinical outcome depends on many factors, only reaching neutral alignment after surgery may not mean a good clinical result. Therefore, categorization of optimal coronal alignment after TKR may be impractical. But we still believe that the concept of correction rate and new grouping method are worthy of research which can reflects the preoperative knee condition and the change of coronal alignment. Perhaps it can be better used in TKR in the future. Level of evidence: III.

scholarly journals Degree of Coronal Alignment Correction Can’t Predict Knee Function in Total Knee Replacement

2020 ◽  
Author(s):  
Shibai Zhu ◽  
Xi Chen ◽  
Yiou Wang ◽  
Wenwei Qian ◽  
Huiming Peng ◽  
...  
Keyword(s):  
Soft Tissue ◽  
Neutral Axis ◽  
Functional Score ◽  
Coronal Alignment ◽  
Correction Rate ◽  
Alignment Correction ◽  
Total Knee ◽  
Grouping Method ◽  
The Relationship ◽  
Neutral Alignment

Abstract Background: Whether neutral alignment brings better clinical outcomes is controversial. Consideration of the preoperative knee condition of patients and some limitations of previous studies, we suggested that other index may be more important than a generic target of 0° ± 3° of a neutral axis to reflect changes in coronal alignment after TKR. The purpose of this study was to explore the relationship between alignment and functional outcome with a new grouping method and the concept of correction rate. Methods: A new grouping method was adopted to divide patients into three groups based on the degree of correction of MFTA: neutral, under and over-correction. HSS were compared among the 3 groups. In addition, we also attempt to further explore whether the concept of correction rate can predict postoperative functional score. Results: HSS showed significant improvement in all groups. There was no difference in HSS or incremental scores based on the postoperative alignment category for the degree of correction of MFTA. The correlational analyses also didn’t find any relevant results. Conclusion: TKR is a soft tissue procedure and clinical outcome depends on many factors, only reaching neutral alignment after surgery may not mean a good clinical result. Therefore, categorization of optimal coronal alignment after TKR may be impractical. But we still believe that the concept of correction rate and new grouping method are worthy of research which can reflects the preoperative knee condition and the change of coronal alignment. Perhaps it can be better used in TKR in the future.

Manipulation under anaesthesia post total knee replacement: Long term follow up

The Knee ◽  
2012 ◽  
Vol 19 (4) ◽  
pp. 329-331 ◽  
Author(s):  
David Yeoh ◽  
Nick Nicolaou ◽  
Richard Goddard ◽  
Henry Willmott ◽  
Kim Miles ◽  
...  
Keyword(s):  
Total Knee Replacement ◽  
Knee Replacement ◽  
Long Term Follow Up ◽  
Manipulation Under Anaesthesia ◽  
Total Knee

scholarly journals Over 5-Year Follow-up of Total Knee Replacement with the Okayama University Type(Mark II).

1991 ◽  
Vol 40 (1) ◽  
pp. 55-58
Author(s):  
Eiji Kawaguchi ◽  
Tetuya Hirano ◽  
Kunihiko Tomoda ◽  
Kenichi Yamashiro ◽  
Kiminori Sakamoto ◽  
...  
Keyword(s):  
Total Knee Replacement ◽  
Knee Replacement ◽  
Total Knee

159 The Need Of Six Monthly Follow Up X-Rays Post Total Knee Replacement(TKR)

2021 ◽  
Vol 108 (Supplement_6) ◽  
Author(s):  
N Baig ◽  
M Ferrari ◽  
A Lukaszewicz
Keyword(s):  
Total Knee Replacement ◽  
Knee Replacement ◽  
Trauma Centre ◽  
X Rays ◽  
Data Set ◽  
X Ray ◽  
Major Trauma Centre ◽  
Plain Films ◽  
Total Knee

Abstract Background There is a longstanding culture of repeat x-rays after total knee replacement (TKR) as part of follow up, often combined with a clinic review. This is to check that the prosthesis is in a satisfactory position. There are inherently a number of issues with this historic approach including exposure of patients to further radiation who may be asymptomatic, time delays in busy clinics or x-ray departments and costs. Objectives The aim of this audit was to assess whether follow up plain films after TKR are methodically undertaken and of benefit to confirm satisfactory appearance if immediate post -operative x-rays were unremarkable. The findings of a six month follow up x-ray was specifically evaluated. The secondary aim was to establish the timing of further follow up x-rays within the department. Method 200 patients were included within the analysis, they all received a TKR at a major trauma centre, over a one-year period between December 2017 and December 2018. Results It was found that 100% of those patients having a post-operative film had a satisfactory appearance. 78% of patients had at least one further follow op x-ray of which 99.4% were satisfactory. Up to five follow up x-rays were taken with 53.5% of patients having a follow up x-ray at 6 months. Conclusions From the above results there is minimal, if any, evidence within the data set to support routine, additional follow up imaging if initial post-operative films are satisfactory, and the patient is asymptomatic.

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