Tesis

Analisis Uji Biomekanik Pada Autograft Tendon Quadriceps Superfisial, Tendon Hamstring dan Bone Patellar Tendon Bone: Studi Eksperimen Kadaver = Biomechanical Test Analysis on Superficial Quadriceps Tendon, Hamstring Tendon and Patellar Tendon Bone Autografts: Cadaveric Experimental Study.

Pendahuluan: Rekonstruksi ACL menghadapi tantangan revisi 3-22% dan ruptur graft 1,8-10,4%. Analisis biomekanik autograft krusial untuk evaluasi kekuatan, kekakuan, dan elongasi graft guna meminimalkan kegagalan dan mengoptimalkan hasil klinis rekonstruksi ligamen. Tendon quadriceps superfisial (Superficial Quadriceps Tendon/ SQT) tanpa bone block merupakan opsi yang lebih baru dan sedang dieksplorasi dalam rekonstruksi ligament dan masih sedikit literatur yang membahas biomekaniknya dibandingkan dengan autograft lainnya. Metode: Autograft Bone Patellar Tendon Bone (BPTB), tendon hamstring (HT) dan tendon superfisial quadriceps (SQT) diambil dari 9 lutut kanan kadaver yang telah diberi formalin dosis rendah dan dibekukan selama 90 hari (7 laki-laki dan 2 perempuan) dengan rentang usia 40-60 tahun. Semua autograft dites secara mekanis secara uniaksial hingga gagal untuk menentukan hasil uji biomekanik. Hasil: Pada perbandingan kelompok SQT, HT dan BPTB setidaknya terdapat antar kelompok yang berbeda bermakna secara statistik pada rerata Cross Sectional Area (nilai p < 0,001) dan Toughness (nilai p < 0,001). Sedangkan untuk Failure Force, Yield Force, Plastic Strain, dan Elongation After Yiled tidak berbeda bermakna secara statistik. Pada analisis post hoc, terdapat perbedaan bermakna secara statistik rerata CSA antara kelompok SQT dengan BPTB (nilai p < 0,001) dan kelompok HT dengan BPTB (nilai p < 0,001). Begitu pula terdapat perbedaan bermakna secara statistik rerata Toughness antara kelompok SQT dengan BPTB (nilai p = 0,001). Kesimpulan: Berdasarkan hasil uji didapatkan BPTB lebih baik dalam hal toughness dibanding SQT namun tidak ada perbedaan bermakna antara SQT dan HT.
Kata kunci: REkonstruksi ACL, autograft, tendon superfisial quadriceps, uji biomekanik


Introduction: Revision rate ofACL reconstruction is 3-22% and graft rupture rate is 1.8- 10.4%. Biomechanical analysis of autografts is crucial for evaluating graft strength, stiffness, and elongation to minimize failure and optimize clinical outcomes of ligament reconstruction. Superficial quadriceps tendon (SQT) without bone block is a newer option being explored in ligament reconstruction, and there is still limited literature discussing its biomechanics compared to other autografts. Methods: Bone patellar tendon bone (BPTB), hamstring tendon (HT), and superficial quadriceps tendon (SQT) autografts were harvested from 9 right cadaveric knees that had been preserved with low-dose formalin and frozen for 90 days (7 males and 2 females) with an age range of 40-60 years. All autografts were mechanically tested uniaxially to failure to determine biomechanical test results. Results: In the comparison among SQT, HT, and BPTB groups, there were statistically significant differences between groups in mean Cross Sectional Area (p < 0.001) and Toughness (p < 0.001). Meanwhile, Failure Force, Yield Force, Plastic Strain, and Elongation After Yield showed no statistically significant differences. In post hoc analysis, there were statistically significant differences in mean CSA between the SQT and BPTB groups (p < 0.001) and between the HT and BPTB groups Conclusion: Based on the test results, BPTB demonstrated superior toughness compared to SQT, but there was no significant difference between SQT and HT.
Keywords: ACL reconstruction, autograft, superficial quadriceps tendon, biomechanical testing