This review discusses current and future techniques for repairing articular cartilage defects, focusing on tissue engineering approaches. Articular cartilage has limited regenerative capacity, leading to joint degeneration and the need for surgical interventions. Current clinical repair techniques include microfracture, which stimulates MSCs but often results in fibrocartilage with inferior biomechanical properties. Autologous chondrocyte implantation (ACI) involves harvesting, expanding, and implanting chondrocytes, offering better outcomes but requiring multiple surgeries and a longer recovery period. Matrix-assisted chondrocyte implantation (MACI) uses scaffolds to enhance mechanical stability and chondrogenesis, showing promising results but with higher costs and regulatory challenges. Future regenerative approaches include ex vivo chondrocyte-seeded scaffolds, which may improve tissue maturation and functionality. Stem cells, particularly mesenchymal stem cells (MSCs), are being explored for their potential to regenerate cartilage, with studies showing their ability to differentiate into chondrocytes and promote tissue repair. Other MSC sources, such as adipose-derived and synovial-derived stem cells, are also being investigated for their regenerative potential. Induced pluripotent stem cells (iPSCs) show promise for cartilage regeneration but require further research to address safety and efficacy concerns. Allografts, including fresh and particulated cartilage allografts, offer an alternative to cell-based techniques, with the advantage of bypassing FDA regulations. However, they require careful evaluation of graft viability and mechanical stability. Cell-free techniques, such as autologous matrix-induced chondrogenesis (AMIC), use collagen matrices to promote cartilage regeneration without cell implantation, showing promising results in clinical trials. Scaffold-free approaches, including self-assembling processes and chondrospheres, are being developed to enhance cartilage repair by promoting natural cell interactions and tissue integration. These approaches aim to create bioactive, highly functional implants that can withstand the mechanical demands of the knee joint. Despite promising results, challenges remain in translating these techniques into clinical practice, including regulatory approval, cost-effectiveness, and long-term safety. Further research is needed to optimize these strategies and improve outcomes for patients with articular cartilage defects.This review discusses current and future techniques for repairing articular cartilage defects, focusing on tissue engineering approaches. Articular cartilage has limited regenerative capacity, leading to joint degeneration and the need for surgical interventions. Current clinical repair techniques include microfracture, which stimulates MSCs but often results in fibrocartilage with inferior biomechanical properties. Autologous chondrocyte implantation (ACI) involves harvesting, expanding, and implanting chondrocytes, offering better outcomes but requiring multiple surgeries and a longer recovery period. Matrix-assisted chondrocyte implantation (MACI) uses scaffolds to enhance mechanical stability and chondrogenesis, showing promising results but with higher costs and regulatory challenges. Future regenerative approaches include ex vivo chondrocyte-seeded scaffolds, which may improve tissue maturation and functionality. Stem cells, particularly mesenchymal stem cells (MSCs), are being explored for their potential to regenerate cartilage, with studies showing their ability to differentiate into chondrocytes and promote tissue repair. Other MSC sources, such as adipose-derived and synovial-derived stem cells, are also being investigated for their regenerative potential. Induced pluripotent stem cells (iPSCs) show promise for cartilage regeneration but require further research to address safety and efficacy concerns. Allografts, including fresh and particulated cartilage allografts, offer an alternative to cell-based techniques, with the advantage of bypassing FDA regulations. However, they require careful evaluation of graft viability and mechanical stability. Cell-free techniques, such as autologous matrix-induced chondrogenesis (AMIC), use collagen matrices to promote cartilage regeneration without cell implantation, showing promising results in clinical trials. Scaffold-free approaches, including self-assembling processes and chondrospheres, are being developed to enhance cartilage repair by promoting natural cell interactions and tissue integration. These approaches aim to create bioactive, highly functional implants that can withstand the mechanical demands of the knee joint. Despite promising results, challenges remain in translating these techniques into clinical practice, including regulatory approval, cost-effectiveness, and long-term safety. Further research is needed to optimize these strategies and improve outcomes for patients with articular cartilage defects.