Author(s)

Nurhanani Abu Bakar^1,2, Mohamad Razip Sirat¹, Hairiah Abas³, Saiful Safuan Md Sani⁴

¹Department of Orthopaedic, Hospital Pakar Sultanah Fatimah, Muar, Malaysia.
²Department of Orthopaedic, Hospital Tengku Ampuan Rahimah, Klang, Malaysia.
³Department of Radiology, Hospital Pakar Sultanah Fatimah, Muar, Malaysia.
⁴Department of Medicine, Clinical Research Center, Hospital Kuala Lumpur, Kuala Lumpur, Malaysia.

Background: The size of Hamstring autograft of less than 8.0 mm in ACL re-construction is one of the key factors that may contribute to the failure of the graft. In this study, we are going to assess the correlation of pre-operative MRI measurement of Hamstring tendons with the intra-operative ACL graft. Thus, it may help surgeons to anticipate the needs for graft augmentation should the final graft size be smaller than expected. Methods: We retrospectively re-viewed 41 cases of ACL reconstructions in which MRI were done pre-operatively, in Hospital Pakar Sultanah Fatimah (HPSF), Muar between January 2019 until December 2022. MRI measurements of Hamstring tendon (semitendinosus: ST, and gracilis) were done by a radiologist, and the in-tra-operative notes were reviewed for the final graft size. Pearson’s correlation coefficients were calculated to determine the relationship between graft size and tendon cross-sectional area. The intraclass correlation (ICC) by using two-way mixed model with type consistency, the reliability based on average measure was 0.41 (95% CI: ?0.10, 0.69). A p-value < 0.05 was considered sig-nificant. Results: Of 105 patients with primary ACL reconstruction done be-tween January 2019 to December 2022, only 41 patients were included in this study. There was fair correlation (p = 0.048) between pre-operative MRI measurement and the graft diameter intra-operatively. The mean of 17.0 mm of combined diameter of ST and gracilis tendon in MRI may results in graft diameter of 8.3 mm. There was also positive correlation between patients’ height and the intra-operative graft size. Conclusion: These results showed good correlation between pre-operative MRI measurement of Hamstring ten-don size with the intra-operative graft size, hence it is a reliable tool to predict the Hamstring autograft size in ACL reconstruction.

ACL Reconstruction, Pre-Operative MRI, Hamstring Tendon

Bakar, N. , Sirat, M. , Abas, H. and Sani, S. (2024) Correlation of Hamstring Tendon Size in Pre-Operative MRI Measurement with Intra-Operative Graft Size in Primary Anterior Cruciate Ligament (ACL) Reconstruction. Journal of Biosciences and Medicines, 12, 150-158. doi: 10.4236/jbm.2024.123013.