Augmentation of fracture healing by hydroxyapatite/collagen paste and bone morphogenetic protein-2 evaluated using a rat femur osteotomy model.

In fracture treatment, biological bone union generally depends on the bone's natural fracture healing capacity, even in surgically treated cases. Hydroxyapatite/collagen composite (HAp/Col) has high osteoconductivity and stimulates osteogenic progenitors. Furthermore, it has the potent capacity to adsorb bone morphogenetic proteins (BMPs).

A prospective comparative study of 2 minimally invasive decompression procedures for lumbar spinal canal stenosis: unilateral laminotomy for bilateral decompression (ULBD) versus muscle-preserving interlaminar decompression (MILD).

Study Design: A prospective comparative study.

Objective: To compare prospectively 2 different types of minimally invasive surgery for lumbar spinal canal stenosis (LSCS): unilateral laminotomy for bilateral decompression (ULBD), and muscle-preserving interlaminar decompression (MILD).

Summary Of Background Data: Although previous studies have reported several procedures of minimally invasive surgery for the treatment of LSCS, no articles prospectively compared 2 different procedures.