Comparison of Clinical, Functional, and Radiological Outcomes of Total Knee Arthroplasty Using Conventional and Patient-Specific Instrumentation

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MEHDIPOUR SOHEIL; Qoreishi Mohamad; Keipourfard Ali

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Journal Paper

Paper Information

Journal: Archives of Bone and Joint Surgery Year:2020 | Volume:8 | Issue:5 Page(s): 625-632

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Information Journal Paper

Title

Comparison of Clinical, Functional, and Radiological Outcomes of Total Knee Arthroplasty Using Conventional and Patient-Specific Instrumentation

Author(s)

MEHDIPOUR SOHEIL | Qoreishi Mohamad | Keipourfard Ali | Issue Writer Certificate

Keywords

Mechanical alignment

Patient-specific instrumentation

Total knee arthroplasty

Abstract

Background: Recently, Patient-specific instrumentation (PSI) systems have been developed in order to increase the accuracy of component positioning during Total knee arthroplasty (TKA); however, the findings of previous studies are controversial in this regard. In the current randomized clinical study, the outcomes of computer tomography (CT)-based PS (patient specific)-guided TKA were compared to the results of conventional instrumentation (CVI) TKA. The guides were designed on the basis of distal femoral and proximal tibial pin orientation of the conventional related guides. Methods: The present study was carried out on 24 TKA candidates randomly assigned to two PSI (n=12) and CVI (n=12) groups. The patients were postoperatively followed for 2 years. Then, the hip-knee-ankle angle (HKAA), femoral component flexion, and orientation of components in the coronal plane were measured. In addition, the Western Ontario and McMaster Universities Osteoarthritis (WOMAC) Index and Knee Society Score (KSS) questionnaire were completed for all the patients. Results: The rate of the outliers of the HKAA was higher in the CVI group (41. 7% and 8. 3%; P=0. 077); nevertheless, the difference was not significant in this regard. The rate of the outliers of other radiographic measurements and operational time were similar in both groups. Furthermore, there was no significant difference between the two groups in terms of the WOMAC and KSS. Conclusion: The CT-based PS-guided TKA may result in the improved postoperative Mechanical alignment of the limb and should be considered in complicated TKAs. However, future studies should investigate whether the results of PSI TKA support the considerably higher costs of this technique.

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APA: Copy

MEHDIPOUR, SOHEIL, Qoreishi, Mohamad, & Keipourfard, Ali. (2020). Comparison of Clinical, Functional, and Radiological Outcomes of Total Knee Arthroplasty Using Conventional and Patient-Specific Instrumentation. THE ARCHIVES OF BONE AND JOINT SURGERY, 8(5), 625-632. SID. https://sid.ir/paper/745463/en

Vancouver: Copy

MEHDIPOUR SOHEIL, Qoreishi Mohamad, Keipourfard Ali. Comparison of Clinical, Functional, and Radiological Outcomes of Total Knee Arthroplasty Using Conventional and Patient-Specific Instrumentation. THE ARCHIVES OF BONE AND JOINT SURGERY[Internet]. 2020;8(5):625-632. Available from: https://sid.ir/paper/745463/en

IEEE: Copy

SOHEIL MEHDIPOUR, Mohamad Qoreishi, and Ali Keipourfard, “Comparison of Clinical, Functional, and Radiological Outcomes of Total Knee Arthroplasty Using Conventional and Patient-Specific Instrumentation,” THE ARCHIVES OF BONE AND JOINT SURGERY, vol. 8, no. 5, pp. 625–632, 2020, [Online]. Available: https://sid.ir/paper/745463/en

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