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The potential complication of a central patellar portal technique for arthroscopic anterior cruciate ligament reconstruction
ESSKA Academy. Goto K. Nov 8, 2019; 284420; epESMA-04 Topic: Arthroscopic Surgery
Kazumi Goto
Kazumi Goto
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The potential complication of a central patellar portal technique for arthroscopic anterior cruciate ligament reconstruction

ePoster - epESMA-04

Topic: Sports Trauma

Goto K.1, Taketomi S.2, Shimizu N.1
1Toshiba Rinkan Hospital, Sagamihara-shi, Japan, 2Tokyo University, Tokyo, Japan

PurposeThe central patellar (CP) portal is a very useful portal to look at the native femoral insertion site of the anterior cruciate ligament (ACL). It aids in the drilling of an anatomical tunnel; however, the impact of the patellar tendon or the infrapatellar fat pad remains a concern. The aim of this study was to investigate complication of the CP portal for arthroscopic ACL reconstruction (ACLR).
Methods: A total of 105 patients (107 knees), who underwent ACLR using the CP portal technique from 2012 to 2017, were included in this study. The mean patient age was 28.3 years amongst 45 male and 60 female patients. The mean follow-up duration was 23.3 months. All surgeries were single bundle reconstructions with hamstring tendon autografts using a trans tibial technique via the CP and anteromedial portals. This study aims to investigate the post-operative events, magnetic resonance images (MRI), and arthroscopic findings that would be associated with CP portal creating.
Results: There were five cases (4.7%) who had any symptomatic postoperative complications. Abnormal signal intensity of patellar tendon and increased thickness was found in 18 of 25 knees (72%) at the level of CP portal trace. Three of 56 knees (5.4%), which had undergone second-look arthroscopy, showed fibrosis of the infrapatellar fat pad. Seven cases (12.5%) showed hypertrophy of the ligamentum mucosum.
Conclusion: The rate of symptomatic complications associated with CP portal placement was 4.7% in our study. However abnormal findings in MRI or follow-up arthroscopy were much higher than clinical symptomatic cases.
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