A novel classification of cement distribution patterns based on plain radiographs associated with cement filling rate and relevance to the clinical results of unipedicle vertebroplasty.

Introduction: Cement distribution pattern following unipedicle percutaneous vertebroplasty (UVP) for osteoporotic vertebral compression fractures (OVCFs) has been reported in association with clinical results. The present retrospective study aimed to classify the bone cement distribution types following UVP and investigate the differences in clinical efficacy and related complications.

Materials And Methods: We retrospectively reviewed the medical records of the patients with single-segment OVCFs who underwent UVP.

Subpedicle decompression and vertebral reconstruction for thoracolumbar Magerl incomplete burst fractures via a minimally invasive method.

Study Design: Retrospective.

Objective: To evaluate the clinical and radiographical results.

Summary Of Background Data: The evolution of posterior approach for burst fractures was from long-segment to short-segment and then to monosegmental fixation.

Transpedicle body augmenter for vertebral augmentation in symptomatic multiple osteoporotic compression fractures.

Background: Multiple osteoporotic vertebral compression fractures (VCFs) have been treated with polymethylmethacrylate augmentation; however, there are cement complications and long-term fracture healing that are unknown. Transpedicle body augmenter (a porous titanium spacer) has been reported as an internal support to reconstruct the vertebral body combining short-segment fixation in burst fracture and Kümmell's disease with cord compression. Transpedicle body augmenter for vertebral augmentation (TpBA) also has been reported successfully in treating single painful VCF and vertebral metastasis lesions including pending fractures and pathologic compression fractures.

Long-term results of transpedicle body augmenter in treating burst fractures.

Background: Short-segment fixation alone to treat thoracolumbar burst fractures is common but it has a 20-50% incidence of implant failure and rekyphosis. A transpedicle body augmenter (TpBA) to reinforce the vertebral body via posterior approach has been reported to prevent implant failure and increase the clinical success rate in treating burst fracture. This article is to evaluate the longterm results of short-segment fixation with TpBA for treatment of thoracolumbar burst fractures.

Preliminary report of transpedicle body augmenter vertebroplasty in painful vertebral tumors.

Study Design: Transpedicle body augmenter vertebroplasty of painful vertebral tumor was retrospectively evaluated.

Objective: Transpedicle body augmenter vertebroplasty was designed to treat spinal tumor with intractable pain refractory to conservative management, deformity, biomechanical impairment, and neural deficits.

Summary Of Background Data: Chemotherapy, hormonal therapy, and radiation therapy cannot restore spinal stability.

Transpedicle body augmenter in painful osteoporotic compression fractures.

Osteoporotic compression fractures (VCFs) can result in progressive kyphosis and chronic pain. Polymethylmethacrylate has been used for augmentation of VCFs; however, there are cement complications, and long-term fracture healing is unknown. The transpedicle body augmenter (TpBA), a porous titanium spacer, has been reported as an internal support to reconstruct the vertebral body combining short segment fixation in burst fracture.

Another option to treat Kümmell's disease with cord compression.

The efficiency of short-segment fixation with transpedicle body augmenter (a titanium spacer with bone-ingrowth porous surface, TpBA) to treat Kümmell's disease with cord compression (stage III) was retrospectively evaluated. No laminectomy or instrumentation reduction was done. Inclusion criteria included Frankel CDE, single-level within T10-L2.

Transpedicle body augmenter: a further step in treating burst fractures.

Unlabelled: The efficiency of short-segment fixation with a transpedicle body augmenter for treatment of thoracolumbar burst fractures was retrospectively evaluated. Patients included in the study had limited neurologic function, a single-level burst fracture involving T11-L2, and no distraction or rotation trauma. Patients in the control group (n = 45) were treated with short-segment posterior instrumentation alone, whereas patients in the augmented group (n = 75) were treated with a titanium block designed for transpedicle body reconstruction.

Biomechanical analysis of unilateral fixation with interbody cages.

Study Design: An in vitro biomechanical study of the stabilizing effects of a different combination of cages and transpedicular instrumentation on experimental degenerative disc disease.

Objectives: To evaluate the biomechanical efficacy of the interbody fusion cage and unilateral posterior instrumentation on the stability of the spine-device construct.

Summary Of Background Data: Posterior lumbar interbody fusion (PLIF) has become a clinically established and increasingly popular procedure since its introduction and subsequent modification.

Biomechanical effects of the body augmenter for reconstruction of the vertebral body.

Study Design: An in vitro biomechanical study of the stabilizing effects of the body augmenter and posterior instrumentation on experimental thoracolumbar fractures with vertebral defects.

Objective: To evaluate the effects of the body augmenter and instrumentation on the stability of the spine-device construct.

Summary Of Background Data: Posterior instrumentations alone are widely used to accomplish spinal reduction and provide stability for an injured spine; however, implant failure rates have been reported to be approximately 20%.