Paper 40: Early Clinical Outcomes Following Anterior Cruciate Ligament Reconstruction with Quadriceps Tendon Autograft in an Adolescent Population Suggest Higher Rates of Arthrofibrosis with Bone-Block than All Soft Tissue.

Objectives: There is an increased interest in quadriceps tendon autograft for anterior cruciate ligament (ACL) reconstruction the adolescent population. It has emerged as a promising graft option that can be harvested with bone-block (BB) or all soft tissue (AST). The preferred remains controversial there evidence bone to healing stronger and faster, while AST grafts reportedly have lower complication rate. purpose of this study report early clinical outcomes following ACL BB versus We hypothesized both techniques would provide similar outcomes. Methods: A retrospective case-controlled patients under 20 years age who underwent arthroscopic utilizing from September 2017 2021 was conducted. cohort divided two groups: Group 1 included 35 autograft. 2 58 Data collected demographics, range motion, measurements, concomitant procedures, perioperative complications arthrofibrosis rate, defined reoperation lysis adhesions. Knee strength objectively recorded at 3 months postoperatively using isokinetic dynamometer (Humac, CSMI USA, Stoughton, MA, USA) used calculate Limb Symmetry Index (LSI), ratio between involved limb uninvolved expressed percentage. Patient reported include International Documentation Committee (IKDC) Anterior Cruciate Ligament Return Sport After Injury (ACL-RSI) scale. Statistical analyses were then performed compare groups. Results: total 93 analysis, mean 15.9 (range 10-20) follow-up 17 (ranged 25). no difference control groups regarding (p=0.10), BMI (p=0.70), procedures (p=0.39), but predominance females group (bone block) (64.9% vs 43.3%, p=0.02). 1(bone associated higher rate odds 3.98 (7/35 20% 3/58 5%, p=0.02) LSI (55.6% 68.4%, p=0.01) postoperatively. overall greater femur width (9.47 9.19, p=0.02), length (69.85 65.12, p=0.01). Logistic regression found (p=0.03) extension deficit (p=0.01) only risk factors arthrofibrosis. Patients scores than (all tissue), measured by IKDC 63.94 75.27 49.55 63.25 Conclusions: Comparative analysis block population demonstrates QT 4 times requiring operative intervention If surgeons opted population, our findings suggest rehabilitation program focus on restoration full knee should implemented order avoid