Meniscal Tear

Meniscal tears are among the most common knee injuries and frequently require arthroscopic surgical treatment when conservative management fails or mechanical symptoms persist. Although surgical techniques have improved clinical outcomes, postoperative recovery is influenced not only by structural pathology but also by psychological factors. Kinesiophobia, defined as an excessive and debilitating fear of movement due to pain or the expectation of reinjury, may negatively affect rehabilitation adherence, functional recovery, and pain perception. This prospective observational study aims to investigate the effect of preoperative kinesiophobia on postoperative clinical outcomes in patients undergoing arthroscopic surgery for meniscal tears. Adult patients diagnosed with a meniscal tear by clinical examination and magnetic resonance imaging and scheduled for arthroscopic surgery will be enrolled. Preoperative demographic and clinical characteristics, pain intensity, functional status, and kinesiophobia levels will be assessed using validated outcome measures. Postoperative evaluations will be performed three months after surgery to determine changes in pain and functional outcomes. The relationship between preoperative kinesiophobia and postoperative clinical success will be analyzed. The findings of this study may help identify patients at risk for suboptimal recovery and support the development of individualized rehabilitation strategies.

This multicenter, stratified, partially randomized clinical trial aims to compare autologous semitendinosus tendon graft and meniscal allograft transplantation (MAT) in young adults with post-meniscectomy syndrome. The meniscus plays a critical role in load distribution, shock absorption, and joint stability. After meniscectomy, insufficient meniscal tissue often leads to persistent pain, swelling, and functional decline, increasing the risk of early osteoarthritis. Two reconstructive strategies are clinically available: MAT provides immediate biomechanical function but requires donor matching and carries higher costs, while autologous tendon graft offers stable supply and no immunologic risk but lacks long-term clinical validation. In this study, 40 patients aged 18-45 years will be enrolled. Participants will be allocated into four groups (randomized MAT, randomized autograft, patient-preference MAT, patient-preference autograft). All procedures will use a two-tunnel fixation technique with additional internal brace support. The primary endpoint is the improvement in KOOS (Knee Injury and Osteoarthritis Outcome Score) at 24 months postoperatively. Secondary endpoints include MRI-based assessment of graft morphology and extrusion, reoperation rate, complications, patient satisfaction, and return-to-sport time. This trial will provide critical evidence regarding the comparative effectiveness and feasibility of tendon autograft versus meniscal allograft in real-world clinical settings, potentially informing surgical decision-making and future treatment guidelines for post-meniscectomy syndrome.

Meniscal suture represents the current surgical practice, and marrow venting is a low risk procedure. Bone venting may be able to improve the outcome of meniscal repair, allowing the patient a better recovery.

The purpose of this investigator-initiated trial is to evaluate whether the novel graft can prevent/reduce the disadvantages of the previously used replacement materials and shows better results than the group of patients, which were not operated. Since there is currently no alternative made of biological material to this product, this investigator-initiated trial is of great medical and economic importance. The otherwise following arthrosis or knee prosthesis implantation (TKA ) could be prevented or at least postponed. Initial clinical results are promising. An important and sensitive parameter for assessing the postoperative function of the meniscus is the MRI image. Genovese et al. 2007 were able to show in a categorization/classification which magnetic resonance image can be expected in the case of successful incorporation. Several studies have shown that the known clinical knee scores (Lysholm, IKDC, KOOS, VAS pain) improve significantly after successful ingrowth of the meniscus implant.

The study is a pilot study designed to generate preliminary data regarding the cost of partial meniscectomy using NanoScope versus conventional arthroscopy in a traditional operating room (OR) setting