Accuracy of Femoral Component External Rotation with all Burr Robotic Assisted Total Knee Arthroplasty
https://doi.org/10.5704/MOJ.2403.003
- Author:
Laddha MS
1
;
Gowtam SV
2
;
Jain P
2
Author Information
1. Department of Orthopaedics, RNH Hospital, Nagpur, India
2. Department of Arthroplasty and Arthroscocpy, RNH Hospital, Nagpur, India
- Publication Type:Journal Article
- Keywords:
total knee arthroplasty, robotic assisted TKA, femoral external rotation, navigated TKA
- From:Malaysian Orthopaedic Journal
2024;18(No.1):19-25
- CountryMalaysia
- Language:English
-
Abstract:
Introduction: External rotation of femoral component is
controversial in Total knee arthroplasty (TKA). The aim of
our study is to assess the precision of femoral component
external rotation in Robotic Assisted All Burr TKA.
Materials and methods: This is a prospective study of 30
cases who underwent All Burr Robotic Assisted TKA at our
institute, RNH hospital. Inclusion criteria were primary and
secondary osteoarthritis of the knee and exclusion criteria
were revision and partial knee replacement. On Navio
robotic system femoral external rotation was planned as per
medio-lateral flexion gap balancing and executed with burr.
Post-operative CT scan was done in all patients to assess
intra-operative planned femoral external rotation.
Results: Out of 30 cases, 20 were female and 10 were male.
Mean age was 66.06±7.43 years. On Navio the planned
external rotation of femoral component was 2.86±1.16.
Average of femoral component external rotation on postoperative CT scan was 3.11±1.16. The mean deviation of
achieved femoral component external rotation from planned
external rotation was -0.24 to ±0.28. Only 37% patients
required 3° external rotation. Correlation between planned
and achieved femoral component external rotation was
significant, positive and very strong as indicated by r=0.97
and p=0.0001.
Conclusion: All Burr Robotic Assisted TKA provides near
accurate femoral component external rotation as planned on
Navio with deviation of less than 0.3° between planned and
achieved external rotation.
- Full text:202408071108417403516.2024my1347.pdf
