Tibiofemoral contact mechanics following posterior root of medial meniscus tear, repair, meniscectomy, and allograft transplantation

Abstract

Both meniscal root repair and transplantation of meniscus improved contact mechanics, but it did not appear that repair of the meniscal root or transplantation of meniscus restores the biomechanical function back to normal level. The MAT plus MCL release was similar to those after MAT alone. Therefore, it is better to preserve meniscus and MCL release could be done during the MAT.

Comparison between conservative treatment and arthroscopic pull-out repair of the medial meniscus root tear and analysis of prognostic factors for the determination of repair indication

“…Lim et al [9] reported a successful conservative treatment of MMRT; however, most patients were acute onset and the follow-up period was only 12 months. Recent biomechanical studies reported that repaired MMRT restored the peak contact pressure close to the normal level [6][7][8]10]. In biomechanical research, several techniques [11][12][13][14] to repair MMRT have been reported and clinical investigations are being performed to determine the outcome of MMRT repair [15,16].…”

Traumatic posterior root tear of the medial meniscus in patients with severe medial instability of the knee

“…Transection injuries of the posterior meniscal root lead to serious consequences similar to those of total meniscectomy and a near-total loss of biomechanical function of the meniscus [5,9,18,20]. As a result, degenerative chondral wear can progress rapidly due to decreased tibiofemoral contact area and increased contact pressure.…”

Comparison of Clinical and Radiologic Results Between Partial Meniscectomy and Refixation of Medial Meniscus Posterior Root Tears: A Minimum 5-Year Follow-up

“…4 When all biomechanical studies are considered, MMPRTs increase the contact surface and decrease the peak pressure through loss of hoop tension caused by the disruption of circumferential fibers, similar to what occurs in a knee that has undergone total meniscectomy. 3,[5][6][7] Recently, surgeons have recognized the importance of MMPRTs, and several biomechanical and biological studies have considered what type of management is most appropriate. Several regimens for MMPRTs have been introduced, including conservative treatment, 8,9 meniscectomy, 10,11 root refixation, [11][12][13][14][15][16] and high tibial osteotomy.…”