To identify trends in results for patients who underwent a meniscal transplant performed by a single surgeon based off patient recorded outcomes at measured intervals of 6 weeks, 12 weeks, 6 months, and every year after surgery. In patients status-post meniscectomy, meniscal allografts transplantation (MAT) has been used to restore the normal biomechanics and anatomy of the knee. Numerous studies have shown that this is a viable option to restore this vital, missing tissue. MAT has been previously shown to yield favorable results and provide both improved function and pain in the short- and medium-term basis.
The aim of this study is to evaluate patient recorded outcomes in the short-, medium, and long-term basis in patients who underwent MAT performed by a single surgeon utilizing a bone-block technique. From November 2012 through January 2019, 16 isolated MATs were performed by the senior author in previously meniscectomized patients with corresponding compartmental knee pain. Summaries for pain frequency and severity were calculated at measured intervals. Variables were compared over time with a nonparametric repeated measures model.
16 patients with minimum one-year post-operative follow up demonstrated statistically significant improvements in at all time points in seven of nine of standardized outcomes surveys with the exception of MSF-12 and PSF-12 (Fig 1). Median preoperative pain frequency and pain severity scores were 7 and 6.5 respectively, whereas these scores each decreased to 3.5 at one-year follow-up and to 1.5 at two-year follow-up.
Meniscus transplantation in isolation resulted in reliable improvements in knee pain and function at minimum 1-year follow-up, although overall, scores demonstrated best results at the 2-year follow up interval. Our findings agree with preceding studies demonstrating that when done in the correct patient population, MAT (specifically utilizing bone fixation), provides an excellent graft which provides long-term improvements (Fig 2).