A Randomized Trial of Autologous Chondrocyte Implantation Versus Alternative Forms of Surgical Cartilage Management in Patients With a Failed Primary Treatment for Chondral or Osteochondral Defects in the Knee.

Background: There are limited randomized controlled trials with long-term outcomes comparing autologous chondrocyte implantation (ACI) versus alternative forms of surgical cartilage management within the knee.

Purpose: To determine at 5 years after surgery whether ACI was superior to alternative forms of cartilage management in patients after a failed previous treatment for chondral or osteochondral defects in the knee.

Study Design: Randomized controlled trial; Level of evidence, 1.

Staged meniscal allograft transplantation as a biologic treatment of the meniscal deficient knee: A prospective case series of 26 patients with maximum 88-month follow-up.

Introduction: The meniscal deficient knee often exists within the setting of associated pathology including instability, malalignment and chondral injury. The aim of this study was to establish the role of meniscal allograft transplantation (MAT) as part of a staged approach to treatment of the previously menisectomised knee and report: (a) primary data endpoints (pre and post-operative Knee Injury and Osteoarthritis outcome scores (KOOS), Tegner scores, satisfaction scores and graft survival), and (b) secondary endpoints:(complication/reoperation rates, and meniscal extrusion measurements as determined by MRI).

Material And Methods: This prospective study included all patients that underwent arthroscopic fresh frozen allograft MAT at our institution (2010-2017) using a soft tissue fixation technique.

A comparison of femoral tunnel placement in ACL reconstruction using a 70° arthroscope through the anterolateral portal versus a 30° arthroscope through the anteromedial portal: a pilot 3D-CT study.

Background: Graft malposition is a risk factor for failure of anterior cruciate ligament reconstruction. A 70° arthroscope improves visualisation of the medial wall of the lateral femoral condyle without switching portals. We investigated whether the use of this arthroscope affected the accuracy and precision of femoral tunnel placement.

Remnant preservation does not affect accuracy of tibial tunnel positioning in single-bundle ACL reconstruction.

Purpose: Remnant preservation, in anterior cruciate ligament (ACL) reconstruction, has potential biological advantages. However, graft positioning remains vital to functional outcome and the prevention of failure. The aim of this study was to investigate the accuracy and precision of tibial tunnel positioning in remnant preservation single-bundle hamstring reconstruction.

Bone Marrow Oedema in the Knees of Asymptomatic High-Level Athletes: Prevalence and Associated Factors.

Background: Bone marrow oedema (BMO), seen on magnetic resonance imaging, can be associated with various injuries to the knee but may also occur in asymptomatic athletes. The prevalence and causal factors for these observations are not well understood. The aim of this study was to determine the prevalence of BMO in asymptomatic knees of athletes, competing at a high level, and to investigate the associated factors.