Adolescent idiopathic scoliosis (AIS) is usually instrumented using a posterior approach. Hardware removal may be performed for specific clinical reasons. Little data is available on whether removal influences curve magnitude. The aim of the paper is to evaluate the impact of instrumentation removal on curve progression, and the safety and ...

STUDY DESIGN: The medical records of 138 subjects with Early Onset Scoliosis (EOS) from 5 US institutions were reviewed to analyze their hemoglobin levels before and after surgery. Eighty-five subjects were operated with the Vertical Expandable Prosthetic Titanium Rib (VEPTR) and 53 with growing rods. OBJECTIVE: To estimate the prevalence ...

BACKGROUND: The aim of the study was to assess pulmonary function in patients after spinal fusion combined with thoracoplasty in comparison with subjects in whom thoracoplasty was not performed, but who underwent intensive rehabilitation. MATERIAL NA DMETHODS: The study population consisted of two groups of adolescent girls about two years ...

STUDY DESIGN: Radiographic results from a prospective, randomized, multicenter trial assessing patients who underwent lumbar total disc replacement (TDR) or circumferential arthrodesis for 1-level degenerative disc disease. OBJECTIVE: To quantify the relative segmental contribution to total lumbar range of motion (ROM) at the operative level at each adjacent level in ...

OBJECT: The use of a pedicle screw (PS) in the cervical spine ensures strong fixation. However, 6.7-29% of such screws appear to be malpositioned using manual insertion techniques, especially at C-3 to C-6 where the pedicle diameter is smaller, potentially causing catastrophic complications such as vertebral artery (VA) and spinal ...

To characterize perioperative biomechanical changes after thoracic spine surgery. Fifty-eight patients underwent spinal instrumented fusions and simple laminectomies on the thoracolumbar spine from April 2003 to October 2008. Patients were allocated to three groups; namely, the laminectomy without fusion group (group I, n = 17), the thoracolumbar fusion group (group ...

OBJECT: The authors present the radiological and clinical outcome data obtained in patients who underwent single-level anterior cervical discectomy and fusion (ACDF) for cervical spondylosis and/or disc herniation; bioabsorbable plates were used for instrumentation. The use of metallic plates in ACDF has gained acceptance as a stabilizing part of the ...

OBJECTIVE: To compare subjective treatment outcomes in patients with idiopathic scoliosis who underwent Cotrel-Dubousset instrumentation with rib resection at the curve apex and in patients who did not undergo rib resection at the same time as scoliosis correction. MATERIAL AND METHODS: Treatment outcomes were assessed with the Scoliosis Research Society ...

Randomised controlled trials (RCTs) of cervical disc arthroplasty vs fusion generally show slightly more favourable results for arthroplasty. However, RCTs in surgery often have limited external validity, since they involve a select group of patients who fit very rigid admission criteria and who are prepared to subject themselves to randomisation. ...

BACKGROUND CONTEXT: Single-level corpectomy and two-level discectomy with anterior cervical plating have been reported to have comparable fusion and complication rates. However, there are few large series that have compared the two for sagittal alignment, cervical lordosis, graft subsidence, and adjacent-level ossification. PURPOSE: To determine the differences between these two ...

STUDY DESIGN: A retrospective evaluation. OBJECTIVE: To evaluate the change in lumbar lordosis in spinal deformity patients who underwent an instrumented posterior spinal fusion on the Orthopedic Systems Inc. (OSI) "Jackson" frame. SUMMARY OF BACKGROUND DATA: Intraoperative prone positioning with hip extension may posturally increase lumbar lordosis during adult spinal ...

STUDY DESIGN: A retrospective study. OBJECTIVE: This retrospective investigation was conducted to determine efficacy and endurance of titanium mesh cage as a strut for interlaminar wiring by comparing with autologous iliac bone graft (AIBG). For patients with atlantoaxial instability (AAI), allograft bone was harvested on an interlaminar mesh cage and ...

STUDY DESIGN: A retrospective study of 61 patients with cerebral palsy (CP) and neuromuscular scoliosis treated by either a combined anterior-posterior spinal arthrodesis or a posterior-only arthrodesis with the unit rod. OBJECTIVES: Compare coronal and sagittal plane radiographic outcomes in patients undergoing either a combined anterior-posterior spinal fusion (PSF) or ...

This is retrospective study of clinical and radiological outcomes of anterior cervical fusion using Bongros-HA (BioAlpha, Seongnam, Korea) which is a type of synthetic hydroxyapatite (HA) spacer to evaluate the efficacy in its clinical application and usefulness as a reliable alternative to autograft bone. Twenty-nine patients were enrolled in this ...

STUDY DESIGN: Randomized, controlled, multi-center trial. OBJECTIVE: To investigate the effect of direct current (DC) electrical stimulation on functional and clinical outcome after lumbar spinal fusion in patients older than 60 years. SUMMARY OF BACKGROUND DATA: Older patients have increased complication rates after spinal fusion surgery. Treatments which have the ...

In a prospective observational study we compared the two-year outcome of lumbar fusion by a simple technique using translaminar screws (n = 57) with a more extensive method using transforaminal lumbar interbody fusion and pedicular screw fixation (n = 63) in consecutive patients with degenerative disease of the lumbar spine. ...

Posterior lumbar interbody fusion (PLIF) is considered to have the best theoretical potential in promoting bony fusion of unstable vertebral segments by way of a load sharing effect of the anterior column. This study was undertaken to investigate the efficacy of PLIF with cages in chronic degenerative disc disease with ...

STUDY DESIGN: Clinical trial subgroup analysis. OBJECTIVE: To compare outcomes of different fusion techniques treating degenerative spondylolisthesis (DS). Summary of Background Data. Surgery has been shown to be more effective than nonoperative treatment out to 4 years. Questions remain regarding the differential effect of fusion technique. METHODS: Surgical candidates from ...

AIM: In this study, we examined the results of utilizing the agile posterior dynamic stabilization system with dynamic transpedicular screws in our patients. MATERIAL AND METHODS: Posterior dynamic instrumentation with agile rods and dynamic transpedicular screws was employed in 15 (seven male and eight female) patients (mean age = 42, ...

STUDY DESIGN: Randomized, controlled, multi-center trial. OBJECTIVE: To investigate the effect of direct current (DC) electrical stimulation on fusion rates after lumbar spinal fusion in patients older than 60 years. SUMMARY OF BACKGROUND DATA: Older patients have increased complication rates after spinal fusion surgery. Treatments which have the possibility of ...

The purpose of this study was to determine the efficacy, radiological findings, clinical outcomes and complications in patients with lumbar stenosis and osteoporosis after the use of polymethylmethacrylate (PMMA) augmentation of a cannulated pedicle screw. Thirty-seven patients with degenerative spinal stenosis and osteoporosis (T-score < -2.5) underwent lumbar fusion using ...

A prospective, randomized, controlled study was carried out to compare the radiological and clinical outcomes after anterior cervical decompression and fusion (ACDF) with Trabecular Metal (TM) to the traditional Smith-Robinson (SR) procedure with autograft. The clinical results of cervical fusion with autograft from the iliac crest are typically satisfactory, but ...

A non-randomised retrospective study to compare the results of surgical correction of scoliosis in Duchenne's muscular dystrophy (DMD) patients using three different instrumentation systems-Sublaminar instrumentation system (Group A), a hybrid of sublaminar and pedicle screw systems (Group B) and pedicle screw system alone (Group C). Between 1993 and 2003, 43 ...

The linear dimensions and volume of the posterior fossa, and the length of the supra-occiput and the clivus in children with Chiari I malformations (CMI) were studied. A statistical relationship between patient demographics, radiological features, posterior fossa and occipital bone morphometry in the study and control groups was investigated. The ...

BACKGROUND: Serial cast correction by using the Cotrel derotation technique is one of several potential treatments for progressive infantile scoliosis. This study reviews our early experience to identify which, if any, patients are likely to benefit from or fail this technique. METHODS: We followed all patients treated at our institutions ...

INTRODUCTION: The aim of surgical treatment in idiopathic scoliosis is correction, solid fusion and restoration of normal sagittal alignment of the spinal curves. The goal of this paper is to formulate a new uniform approach to evaluation of treatment outcomes in idiopathic scoliosis patients, considering not only the degree of ...

BACKGROUND: Lumbosacral fusion is often needed in cases of pediatric neuromuscular spinal deformities. Despite the numerous fixation techniques described, the procedure remains challenging. Jackson has described a method of intrasacral fixation providing immediate 3-dimensional stability and promising clinical results. The purpose of this study was to report our experience with ...

BACKGROUND: Orthopaedic bracing is used in conservative treatment of spinal curvatures. Apart from rigid braces, SpineCor dynamic braces with a flexible design have recently become available. The idea behind dynamic bracing is that derotational and correcting forces are transmitted via a system of corrective bands. The essence of this technique ...

The purpose of this study was to prospectively evaluate long-term results after anterior cervical discectomy and titanium cage fusion (ACDF) and titanium cage fusion. Special focus was on the adjacent levels. 54 patients (age: 48+/-10 years; one level operation in 44 patients and two level operation in 10 patients) entered ...

Implant removal because of pain after posterior fusion in the thoracic and lumbar spine is a widely performed operation. We conducted a retrospective study to examine whether patients benefit from implant removal. 57 patients (29 males, 28 females, mean age 46.5 years) who have undergone removal of pedicle screws because ...

The purpose of this study was to clarify the incidence and characteristics of late-onset complications of the spine in children who underwent intra-operative radiation therapy (IORT) for common paediatric malignant tumours. 12 children with more than 4 years of follow-up after IORT were included and, in 11 of these, thoracic ...

Objective: The coronal ring of patients with unilateral coronal synostosis (UCS) presents premature fusion. This study aims to elucidate whether or not the dynamic behavior of the orbit in response to intra-cranial pressure (ICP) differs between patients in whom the premature fusion exists only in the frontoparietal suture (FPS) and ...

STUDY DESIGN: Multicenter analysis of 2 groups of patients surgically treated for Lenke 5C adolescent idiopathic scoliosis (AIS). OBJECTIVE: Compare patients with Lenke 5C scoliosis surgically treated with anterior spinal fusion with dual rod instrumentation and anterior column support with patients surgically treated with posterior release and pedicle screw instrumentation. ...

The aim of this study is to evaluate an integrated cage and plate device (the plate cage Benezech, PCB) filled with autogenous bone in anterior cervical discectomy and fusion. The fused segment height, lordosis, and fusion were assessed by postoperative radiographic examination at different intervals. Patients were evaluated using Odom's ...

STUDY DESIGN: A retrospective review of scores from the Scoliosis Research Society outcomes instrument (SRS-24 questionnaire). OBJECTIVE: To quantify the isolated effects of spinal fusion and deformity magnitude on quality of life in patients with adolescent idiopathic scoliosis (AIS). SUMMARY OF BACKGROUND DATA: Significant improvements in 2-year postoperative SRS-24 questionnaire ...

Superiority of pedicle screws over hybrid/hook instrumentation or vice versa in the treatment of Lenke Type 1 and 2 adolescent idiopathic scoliosis (AIS) remains unresolved for moderate curves. Our objective was therefore to compare the assessment of pedicle screw and hybrid/hooks instrumentation with special attention to cosmesis and uninstrumented spine ...

The objective of the article is to verify the hypothesis that the dorsal multilevel laminectomy and rod-screw-instrumented fusion (DLF) for multilevel spondylotic cervical myelopathy (MSCM) is less strenuous for patients, and less prone to perioperative complications, than ventral multilevel corpectomy and plate-screw-instrumented fusion (VCF), while clinical outcome is comparable. One ...

BACKGROUND AND PURPOSE: An increasing number of lumbar fusions are performed using allograft to avoid donor-site pain. In elderly patients, fusion potential is reduced and the patient may need supplementary stability to achieve a solid fusion if allograft is used. We investigated the effect of instrumentation in lumbar spinal fusion ...

STUDY OBJECTIVE: Standard treatment for girls with labial fusion has included topical estrogen cream, manual separation, or surgery. Side effects may limit the use of topical estrogen. Betamethasone has recently shown efficacy at separating labial fusion. Local irritation and inflammation may be an initiator of labial fusion. No adverse effects ...

STUDY DESIGN: Retrospective case study. OBJECTIVE: We present a retrospective clinical study of 36 patients of Duchenne muscular dystrophy (DMD) treated for correction of scoliosis with pedicle screw-only constructs with the objective to analyze our technique, correction and maintenance of spinal and pelvic deformity, spinal fusion, the complications we encountered, ...

OBJECTIVE: To evaluate and compare the effectiveness of the modified Hong Kong procedure performed with and without additional instrumentation, in terms of improvement in neurological and kyphotic disabilities in spinal tuberculosis. STUDY DESIGN: Quasi-experimental study. PLACE AND DURATION OF STUDY: Department of Orthopaedic Surgery, Rawalpindi General Hospital, Rawalpindi, from June ...

OBJECT: The objective of this systematic review was to use evidence-based medicine to examine the efficacy of cervical laminectomy and fusion for the treatment of cervical spondylotic myelopathy (CSM). METHODS: The National Library of Medicine and Cochrane Database were queried using MeSH headings and keywords relevant to cervical laminectomy, fusion, ...

STUDY DESIGN: A meta-analysis of circumferential fusion versus instrumented posterolateral fusion (PLF) in the lumbar spine. OBJECTIVE: To compare the clinical efficacy of circumferential fusion and instrumented PLF and to collate the scientific evidence to find a useful fusion method. SUMMARY OF BACKGROUND DATA: Clinical results, advantages, and postoperative complications ...

Bracing is frequently used for the treatment of adolescent idiopathic scoliosis. Such treatment is not always effective, and corrective surgery may be warranted. Brace treatment has been suggested to negatively affect quality of life. This study assessed postoperative quality of life and surgical outcome in Chinese patients with adolescent idiopathic ...

STUDY DESIGN: Prospective study of 31 patients who underwent anterior cervical fusion. OBJECTIVE: To investigate the efficacy of polyetheretherketone (PEEK) cages and demineralized bone matrix (DBM) for anterior cervical discectomy and fusion (ACDF). SUMMARY OF BACKGROUND DATA: Although high fusion rates can be achieved with autogenous bone grafts, donor-site morbidity ...

STUDY DESIGN: Retrospective cohort. OBJECTIVE: The purpose of this study is to determine the fusion rates of a consecutive series of anterior cervical decompressions and fusions with allograft patella using both static and dynamic plates. SUMMARY OF BACKGROUND DATA: Anterior cervical diskectomy and fusion (ACDF) has been shown to improve ...

STUDY DESIGN: Retrospective review. OBJECTIVE: To analyze outcomes and complications of growing rods fixed to the pelvis. SUMMARY OF BACKGROUND DATA: Growing systems with pelvic foundations are used for neuromuscular/syndromic scoliosis. There is little data comparing different constructs. This project analyzed the outcomes and complications of this population. METHODS: Records/radiographs ...

STUDY DESIGN: Retrospective review. OBJECTIVE: To evaluate the effectiveness of a new growing rod technique in controlling infantile scoliosis in patients with Marfan syndrome. SUMMARY OF BACKGROUND DATA: Infantile scoliosis in patients with Marfan syndrome is nearly always progressive and poorly controlled by bracing, yet previous studies have shown poor ...

The aim of this study was to determine the influence of lateral thoracotomy on the development of scoliosis in subjects undergoing repair of coarctation of the aorta (CoA) and patent ductus arteriosus (PDA). A group of 133 patients with CoA and PDA was evaluated. Forty-five patients with CoA and 38 ...

Degenerative lumbar spinal stenosis (DLSS) can be treated by several surgical procedures. However, the choice of procedure and use of instrumentation remain controversial. In this retrospective study of 81 patients with DLSS, 43 patients received decompression and posterolateral fusion without instrumentation, and the surgery for 38 patients was supplemented with ...