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Three-Dimensional-Printed Guiding Template for Unicompartmental Knee Arthroplasty
Fei Gu1,2,3, Liangliang Li2,4, Huikang Zhang2,5
1Department of Orthopaedics, Nanjing First Hospital, Nanjing Medical University, No. 68, Changle Rd, Qinhuai District, Nanjing 210006, China.
Biomed Research International
|December 31, 2020
Summary
This study shows that using a 3D-printed patient-customized guiding template (3DGT) for unicompartmental knee arthroplasty (UKA) significantly reduces operation time and improves short-term clinical outcomes compared to traditional methods.
Area of Science:
- Orthopedic Surgery
- Biomedical Engineering
- Medical Device Technology
Background:
- Accurate limb alignment is critical for successful unicompartmental knee arthroplasty (UKA).
- Traditional UKA methods may face challenges in achieving optimal alignment.
- Patient-specific instrumentation offers potential improvements in surgical precision.
Purpose of the Study:
- To evaluate the efficacy and safety of a 3D-printed patient-customized guiding template (3DGT) for UKA.
- To compare surgical outcomes between 3DGT-assisted UKA and traditional UKA (T-UKA).
Main Methods:
- A randomized controlled trial involving 22 patients undergoing UKA.
- Patients were divided into two groups: 3DGT-UKA (n=11) and T-UKA (n=11).
- 3DGT involved pre-operative 3D limb imaging, custom template design, and intraoperative use for osteotomy guidance.
Main Results:
- No significant difference in prosthesis size between groups.
- Shorter operation time (53.6 vs. 75.8 minutes) and reduced postoperative drainage (93.2 vs. 85.2 mL) in the 3DGT-UKA group (p < 0.05).
- Improved short-term pain scores (VAS) and functional scores (HSS) in the 3DGT-UKA group; shorter hospital stay.
Conclusions:
- 3D-printed patient-customized guiding templates are effective for UKA.
- 3DGT can decrease operation time and blood loss.
- 3DGT improves short-term clinical outcomes in UKA patients.
