Higher rates of surgical and medical complications and mortality following TKA in patients aged ≥ 80 years: a systematic review of comparative studies.

The purpose of this systematic review was to synthesize studies published since the last systematic review in 2015 that compare outcomes of primary total knee arthroplasty (TKA) in older patients (≥ 80 years) and in younger patients (< 80 years), in terms of complication rates and mortality.An electronic literature search was conducted using PubMed, Embase®, and Cochrane Register. Studies were included if they compared outcomes of primary TKA for osteoarthritis in patients aged 80 years and over to patients aged under 80 years, in terms of complication rates, mortality, or patient-reported outcomes (PROs).

Rotating-hinge prosthesis for aseptic revision knee arthroplasty: A multicentre retrospective study of 127 cases with a mean follow-up of five years.

Background: The use of third-generation rotating-hinge knee prostheses has increased considerably in recent years. The more anatomical design of these prostheses, together with their controlled rotation system that reduces constraints generated by the single degree of liberty, have produced better outcomes. The objective of this study was to evaluate the clinical and radiological outcomes of revision knee arthroplasty for aseptic failure using rotating-hinge prostheses.

Functional outcome of osteochondral autograft is equivalent in stable knee and in anterior cruciate ligament reconstruction.

Introduction: Anterior cruciate ligament (ACL) tears are associated in 10% to 20% of cases with extensive traumatic focal osteochondral damage. Ligament reconstruction may require osteochondral autograft for symptomatic osteochondral lesions. Combined ACL and chondral or osteochondral reconstruction is poorly evaluated in the literature; osteochondral reconstruction in stable knee better documented.

Contemporary rotating hinge arthroplasty can safely be recommended in complex primary surgery.

Purpose: The objective was to evaluate clinical and radiological outcomes, survival rate and complications of primary contemporary rotating hinged total knee arthroplasty (CRH-TKA).

Methods: Through a national multicenter retrospective study (14 centers), 112 primary CRH-TKA performed between 2006 and 2011 were included. Indications were: severe frontal plane deformity (55%), inflammatory, constitutional, congenital or post-trauma arthritis (26%), ligament laxity (10%), primary osteoarthritis (9%).

Incidence of osteosynthesis of members in France.

Purpose: Little data is available on the number of osteosynthesis of limbs in a country. Incidence of osteosynthesis is an essential element for the formation and organization of care. Based on the data from the work of the Hospital Information Technology Agency ( http://www.

The use of a photogrammetric method for the three-dimensional evaluation of spinal correction in scoliosis.

Purpose: Clinical parameters, characterizing the spinal deformations due to scoliosis, are still directly measured on the spinal curve plane projections.

Methods: A 3D spinal curve has been reconstructed from its two projections, using photogrammetric techniques. Each spinal curve is a compound of several plane regions, where it is purely flexed, and short zones of connection, where abduction and axial rotation components are concentrated.

Anisotropic effect of Cd and Hg doping on the Pauli limited superconductor CeCoIn5.

We studied the effect of impurity on the first order superconducting (SC) transition and the high field-low temperature (HFLT) SC state of CeCoIn5 by measuring the specific heat of CeCo(In1-xCdx)_{5} with x=0.0011, 0.0022, and 0.

Site-specific fracture plane determination using the FIB/TEM.

A new method for the determination of the crystallographic indices of planar fracture surfaces is described. The key innovation is the use of a focused ion beam instrument to extract two transmission electron microscopy (TEM) foils from the fracture surface. Selected area diffraction of these foils in the TEM allows the determination of the fracture plane from the cross product of two crystallographic line directions contained within the plane.

Location specific in situ TEM straining specimens made using FIB.

A method has been devised and demonstrated for producing in situ straining specimens for the transmission electron microscope (TEM) from specific locations in a sample using a dual-beam focused ion beam (FIB) instrument. The specimen is removed from a polished surface in the FIB using normal methods and then attached to a pre-fabricated substrate in the form of a modified TEM tensile specimen. In this manner, specific features of the microstructure of a polished optical mount can be selected for in situ tensile straining.

A surgical approach to the ventral aspect of the lumbar vertebrae in the sheep model.

The sheep model is frequently used for pre-clinical trials of spinal implants and vertebral interbody fusion devices. The lack of a well-documented multisegmental approach to the ventral aspect of the lumbar vertebrae has limited these trials to a posterior approach to the spine. A retroperitoneal approach to the sheep lumbar vertebrae was established and tested.

Decompensation following scoliosis surgery: treatment by decreasing the correction of the main thoracic curve or "letting the spine go".

Coronal decompensation following correction of adolescent idiopathic scoliosis (AIS) has been reported to be due to the Cotrel-Dubousset rod derotation maneuver, or to a hypercorrection of the main thoracic curve. The treatment of such decompensation consists classically in observation, bracing, or extension of the instrumentation in the lumbar spine for a King 2 curve, or in the upper thoracic spine for a King 5 curve. As the postoperative decompensation is related to a hypercorrection of the main thoracic curve (relative to the compensatory curve), we hypothesized that if we were to "let the spine go" to some of its initial deformity, the balance of the patient would be improved.

Halo femoral traction and sliding rods in the treatment of a neurologically compromised congenital scoliosis: technique.

In severe congenital scoliosis, traction (whether with a halo or instrumental) is known to expose patients to neurologic complications. However, patients with restrictive lung disease may benefit from halo traction during the course of the surgical treatment. The goal of treatment of such deformities is, therefore, twofold: improvement of the respiratory function and avoidance of any neurologic complications.

Adolescent idiopathic thoracic scoliosis: apical correction with specialized pedicle hooks.

Forty-one patients with thoracic adolescent idiopathic scoliosis (AIS) treated with only a posterior spine fusion using specialized pedicle hooks (SPH) (hooks augmented with 3.2-mm screws) at the apex of the curve were reviewed in order to assess the effectiveness of this correction method. Inclusion in the study group required a minimum of 2 years' follow-up and the same strategy of correction where the apical vertebrae (3 or 4 vertebrae on the concave side) were instrumented with SPH.

The 'MW' sacropelvic construct: an enhanced fixation of the lumbosacral junction in neuromuscular pelvic obliquity.

Fixation to the lumbosacral spine to correct pelvic obliquity in neuromuscular scoliosis has always remained a surgical challenge. The strongest fixation of the lumbosacral junction has been achieved with either a Galveston technique with rods or screws or with iliosacral screws. We have devised a new fixation system, in which iliosacral screws are combined with iliac screws.

Unusual presentation of spinal cord compression related to misplaced pedicle screws in thoracic scoliosis.

Utilization of thoracic pedicle screws is controversial, especially in the treatment of scoliosis. We present a case of a 15-year-old girl seen 6 months after her initial surgery for scoliosis done elsewhere. She complained of persistent epigastric pain, tremor of the right foot at rest, and abnormal feelings in her legs.

Long-term three-dimensional changes of the spine after posterior spinal instrumentation and fusion in adolescent idiopathic scoliosis.

This is a prospective study comparing the short- and long-term three-dimensional (3D) changes in shape, length and balance of the spine after spinal instrumentation and fusion in a group of adolescents with idiopathic scoliosis. The objective of the study was to evaluate the stability over time of the postoperative changes of the spine after instrumentation with multi rod, hook and screw instrumentation systems. Thirty adolescents (average age: 14.

[Treatment of scoliosis in the adolescent by anterior release and vertebral arthrodesis under thoracoscopy. Preliminary results].

Purpose Of This Study: The purpose was to evaluate short term results of thoracoscopic anterior release and fusion in adolescent scoliosis.

Material And Methods: An independent observer reviewed retrospectively hospital files and X-rays of 8 consecutive patients. The average follow-up was 14 months.

Beam flatness perturbation effects of a perforated thermoplastic immobilization device on 6 and 12 MeV electron beams.

Purpose: Perforated thermoplastic masks are widely used in radiotherapy of head and neck malignancies. They provide for patient immobilization and increase setup reproducibility. Some oncology treatment centers cut mask portals (windows) for the beam to pass through; for those centers that do not, the mask affects beam fluence.

Extraperitoneal approach to the lumbar spine with video assistance.

Study Design: Description of a new operative techniques for anterior lumbar and lumbosacral fusion using an anterior approach optimized by video assistance.

Objectives: To propose a less invasive technique for anterior lumbar fusion with low-grade morbidity.

Summary Of Background Data: Either anterior transperitoneal or anterolateral extraperitoneal approaches commonly are performed, but each involves specific drawbacks.

[Prospects in video-assisted spinal surgery].

Advances in spinal surgery for both posterior procedures on herniated discs and anterior procedures involving the vertebral body have been greatly affected by developments in video-assisted techniques. Many of the procedures mentioned here are still in the development stage, others have proven their efficacy. Discoscopy, achieved by introducing the endoscope via a posterolateral route into the intervertebral disc, can be used for diagnosis and treatment of the disc and the end plates.

Results of surgical treatment of spinal thoracic and lumbar metastases.

The results of surgical treatment of vertebral metastases were evaluated from a retrospective review of a consecutive series of 100 patients, with special reference to anatomoclinical aspects and functional outcome. The primary tumour in most cases was lung, breast, or prostate; it was unknown in 11 cases. Diagnosis of the metastasis occurred 4-86 months after that of the primary tumour (lung metastasis: 4 months; breast metastasis: 86 months; prostatic metastasis: 22 months).

[Video-assisted anterior extra-peritoneal approach of the inferior lumbar spine].

Purpose Of The Study: The aim of this study is to describe a new operative technique for anterior lumbar and lumbosacral fusion using a video assisted anterior extra peritoneal approach.

Material: Ten patients were operated on. There were 3 men and 7 females.

An augmented audit program for assuring radiation safety during radiographic examination operations.

Auditing a gamma radiography program is required as part of the authorizing license. Checklists and cursory reviews are the typical approach to addressing program requirements. A more proactive approach is recommended.