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Knee Surg Sports Traumatol Arthrosc · Mar 2020
The modified semi-tunnel bone bridge technique achieved statistically better knee function than the suture anchor technique.
- Gang Ji, Haoyu Wang, Xiaoqing Su, Jinliang Wang, and Fei Wang.
- Department of Joint Surgery, Orthopedic Research Institute of Hebei Province, Third Hospital of Hebei Medical University, 139 Ziqiang Road, Shijiazhuang, 050051, Hebei, People's Republic of China.
- Knee Surg Sports Traumatol Arthrosc. 2020 Mar 1; 28 (3): 995-1001.
PurposeThe purpose of this study was to evaluate and compare the clinical outcomes of two different fixation techniques for anatomic medial patellofemoral ligament (MPFL) reconstruction.MethodsA retrospective study was undertaken between 2012 and 2018 of 60 cases of patellar dislocation who underwent surgical reconstruction between 2007 and 2010: 30 patients were treated with modified semi-tunnel bone bridge fixation (group A) and 30 patients with suture anchor fixation (group B). All patients had computed tomography scans available to review the patellar tilt angle and lateral patellar angle (LPA). In addition, a physical examination was performed, and the patellar apprehension sign and patellar stability were evaluated. Knee function was also evaluated using the Kujala score and Lysholm score.ResultsAt a minimum 5-year follow-up, the patellar tilt angle and LPA were restored to the normal range, and a significant difference was observed between the groups. There was a significant improvement in knee function in the Kujala and Lysholm scores after surgery in both groups. At the final follow-up, the mean Kujala and Lysholm scores in groups A and B were significantly different.ConclusionBoth the semi-tunnel bone bridge and suture anchor fixation for double-bundle anatomic reconstruction of the MPFL can effectively restore patellar stability and improve knee function. The semi-tunnel bone bridge technique achieved statistically better knee function than the suture anchor technique at a minimum 5-year follow-up.Level Of EvidenceIII.
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