A simple method for assessing rotational flexibility in adolescent idiopathic scoliosis: modified Adam's forward bending test.

Purpose: This study aimed to evaluate the diagnostic aptitude of a modified Adams forward bending test (MAFBT), which addresses the coupling phenomenon of axial rotation with reference to the side-bending movement. Also, this evaluation was facilitated by the introduction of our rotational flexibility index (RFI).

Methods: Thirty-two female and eight male AIS patients were included in this study from a single institution.

The effect of equine-derived bone protein extract (Colloss-E) in the treatment of cavitary bone defects: an experimental study.

Objective: Bone protein extract (BPE) usually requires a carrier or a scaffold for implantation. We aimed to compare the effect of equine-derived BPE, an osteoinductive agent composed of a high amount of type-I collagen and other bone proteins (Colloss-E), with that of human demineralized bone matrix (DBM) for treating cavitary bone defects not requiring scaffold use.

Methods: Rabbit distal femoral condyle was used as a stable cavitary bone defect model.

Biomechanical comparison of effects of the Dynesys and Coflex dynamic stabilization systems on range of motion and loading characteristics in the lumbar spine: a finite element study.

Background: The primary purpose of dynamic stabilization is to preserve the normal range of motion (ROM) by restricting abnormal movement in the spine. Our aim was to analyze the effects of two different dynamic stabilization systems using finite element modeling (FEM).

Methods: Coflex and Dynesys dynamic devices were modeled and implanted at the L4-L5 segment using virtual FEM.

Effect of strontium ranelate on hydrogen peroxide-induced apoptosis of CRL-11372 cells.

In vitro and in vivo studies have proven strontium to be an osteoinductive trace element. The effect of strontium ranelate (SR) on H(2)O(2)-induced apoptosis of CRL-11372 cells and optimization of its anti-apoptotic dose were the aims of this study. After 1 h of pretreatment with SR 1 microM, 50 microM, 100 microM, 500 microM, and 1,000 microM concentrations, CRL-11372 osteoblasts were exposed to 100 microM H(2)O(2) for periods of 6-12 h.

Alcohol neurolysis for persistent pain caused by superior cluneal nerves injury after iliac crest bone graft harvesting in orthopedic surgery: report of four cases and review of the literature.

Study Design: Harvesting of autologous bone graft from the posterior iliac crest for lumbar spinal fusions is a frequently performed procedure in orthopedic surgery. The most common complication associated with this procedure is an alteration in sensation over the donor site manifested as chronic pain, hyperesthesia, dysesthesia, or diminished sensitivity resulting from superior cluneal nerve (SCN) injury.

Objective: To predict the effectiveness of alcohol neurolysis in the treatment of persistent pain caused by the entrapment of superior cluneal nerves.