Allograft alone versus allograft with bone marrow concentrate for the healing of the instrumented posterolateral lumbar fusion.

Background Context: Spondylodesis in the operative management of lumbar spine diseases has been the subject of numerous studies over several decades. The posterolateral fusion (PLF) with pedicle screw fixation is a commonly used procedure.

Purpose: To determine whether the addition of bone marrow concentrate (BMC) to allograft bone increases fusion rate after instrumented posterior lumbar fusion.

Platelet-rich plasma in patients with tibiofemoral cartilage degeneration.

Introduction: Recently an articular cartilage repair has been given much attention in the orthopaedic field. Cartilage regeneration capacity is very limited. Optimal approach seems to be a delivery of natural growth factors.