Related Experiment Video
Updated: Feb 23, 2026
06:17
Augmented Reality Navigation-Guided Core Decompression for Osteonecrosis of Femoral Head
Published on: April 12, 2022
4.3K
No Difference in Functional Outcomes after Total Knee Arthroplasty with or without Pinless Navigation
Meng Zhu1, Jerry Yongqiang Chen1, Hwei Chi Chong2
1Department of Orthopaedic Surgery, Singapore General Hospital, Singapore, Singapore.
The Journal of Knee Surgery
|September 14, 2017
Summary
Pinless navigation in total knee arthroplasty (TKA) provides similar functional outcomes to conventional surgery. This study found comparable results at 6 and 24 months for patients undergoing TKA with or without pinless navigation.
Area of Science:
- Orthopedic surgery
- Medical technology
- Biomechanical engineering
Background:
- Total knee arthroplasty (TKA) aims to restore function and alignment.
- Accurate intraoperative alignment is crucial for TKA success.
- Navigation systems can potentially improve surgical accuracy.
Purpose of the Study:
- To evaluate functional outcomes of pinless navigation versus conventional surgery in TKA.
- To compare patient-reported outcomes and range of motion at 6 and 24 months postoperatively.
Main Methods:
- Prospective, randomized study of 100 patients undergoing TKA.
- Two groups: pinless navigation (BrainLAB VectorVision Knee 2.5) and conventional surgery.
- Outcomes measured: Oxford Knee Score (OKS), Knee Society Score (KSS), SF-36, and range of motion (ROM).
Main Results:
- No significant differences in OKS, KSS, or ROM between groups at 6 and 24 months.
- Comparable changes from preoperative baseline scores were observed.
- Follow-up was completed by 96% of patients (96/100).
Conclusions:
- Pinless navigation is a viable alternative for intraoperative alignment in TKA.
- Functional outcomes are comparable to conventional TKA techniques at 24 months.
- Pinless navigation does not compromise patient outcomes in TKA.
