Introduction: Ligament injuries commonly occur in the knee region, and the anterior cruciate ligament (ACL) being the most usually injured. Currently, autograft or allograft is the most common material used for ACL reconstruction surgery. The result of the ACL reconstruction depends on the healing process of the graft or ligamentization between graft and bone tunnel. This study aims to evaluate the effect of Stromal Vascular Fraction (SVF) intratunnel injection to stimulates graft healing following ACL reconstruction surgery, as measured by histology examination. Method: This study was an experimental laboratory study with a post-test-only control group design using male Rattus novergicus. A random sampling procedure was used to choose the sample, which was then divided into two groups. The two groups consist of the control group that only had ACL reconstruction surgery and the treatment group that had reconstruction surgery with SVF administration. Result: This study used Advanced Ligament Maturity Index (LMI) score and showed a significant improvement of graft healing in the treatment group compared to the control group. The measurement is based on the cellular, collagen, and vascular aspect testing with P < 0,05 for each subscore. Conclusion: SVF intratunnel injection stimulates graft healing after ACL reconstruction surgery and causes a significant increase in cellular, collagen, and vascular aspects in the graft.
Lesi limfoproliferatif sering menimbulkan masalah dalam penegakan diagnosis karena kemiripan morfologi dan pola pertumbuhan sel-sel limfoid yang menyusun lesi limfoproliferatif reaktif dan limfoma non-Hodgkin Sel B. Diagnosis sulit ditegakkan hanya dengan pulasan rutin Hematoksilin-Eosin, oleh karena itu diperlukan pemeriksaan imunohistokimia menggunakan panel antibodi yang tepat. Penelitian ini bertujuan untuk mengetahui perbedaan ekspresi CD3, CD20, CD43 sebagai panel antibodi dasar dalam menentukan karakter jinak atau ganas dari lesi limfoproliferatif. Karakter jinak diwakili oleh lesi limfoproliferatif reaktif, sedangkan karakter ganas diwakili oleh limfoma non-Hodgkin sel B. Total 50 sampel dibagi menjadi 2 kelompok, yakni kelompok A terdiri dari 25 sampel limfoma non-Hodgkin sel B dan kelompok B terdiri dari 25 sampel lesi limfoproliferatif reaktif. Keseluruhan sampel dipulas antibodi CD3, CD20, CD43. Hasil penelitian menunjukkan persentase imunopositif CD3 dan CD20 pada kelompok A dan B berbeda signifikan dengan nilai p < 0,001. Hal ini menunjukkan bahwa CD3 dan CD20 mampu membedakan karakter klonalitas jinak dan ganas dari sel penyusun lesi limfoproliferatif. Persentase imunopositif CD43 antara kelompok A dan B tidak berbeda signifikan dengan nilai p = 0,791. Hasil yang tidak berbeda signifikan mengindikasikan bahwa CD43 diekspresikan oleh dua jenis populasi sel yang berbeda. Pada kelompok A, CD43 diekspresikan oleh limfosit B neoplastik (ganas), sedangkan pada kelompok B diekspresikan oleh limfosit T. Berdasarkan hasil penelitian, panel antibodi CD3, CD20, CD43 dapat membedakan lesi limfoproliferatif jinak dan ganas, namun diperlukan korelasi morfologi dan kesesuaian pola ekspresi imunopositif dari sel-sel limfoid penyusunnya.
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