Quantitative volumetry of cement leakage in viscosity-controlled vertebroplasty.

Study Design: This study was designed as a cohort study comparing a prospective sample to a historic control group.

Objective: The aim of the actual trial was to compare the rate of cement leakage by quantitative volumetry comparing viscosity-controlled and non-viscosity-controlled vertebroplasty.

Summary Of Background Data: Percutaneous vertebroplasty (PVP) is a widespread safe and effective technique in the treatment of osteoporotic compression fractures and vertebral metastatic lesions.

CT angiography for anterior lumbar spine access: high radiation exposure and low clinical relevance.

Background: Some spine surgeons perform CT angiography for detailed planning of anterior access to the lumbar spine. However, the value of this imaging method and its influence on surgeons' decisions are unclear.

Questions/purposes: We determined (1) the dose of radiation used in preoperative CT angiography and (2) whether CT angiography affects planning of anterior lumbar spine surgeries.

Footprint mismatch in lumbar total disc arthroplasty.

Lumbar disc arthroplasty has become a popular modality for the treatment of degenerative disc disease. The dimensions of the implants are based on early published geometrical measurements of vertebrae; the majority of these were cadaver studies. The fit of the prosthesis in the intervertebral space is of utmost importance.

Inferior stability of a biodegradable cement plug. 122 total hip replacements randomized to degradable or non-degradable cement restrictor.

Introduction: Modern cementing technique demands high intramedullar cement pressure to create an optimum fixed cement support of the femoral stem. Pressure resistant, stable closure of the canal therefore is absolutely necessary. Biodegradable cement restrictors, if corresponding to above mentioned attributes, could be of immense advantage in case of potential revision surgery.

Reproducible assessment of radiolucent lines in total knee arthroplasty.

The Knee Society Total Knee Arthroplasty Radiographic Evaluation and Scoring System was introduced to encourage uniform reporting of radiographic outcome. However, the method for evaluation of radiolucent lines has been shown to be unreliable. Because it has been shown that reducing the complexity of classification systems increases reliability and reproducibility, we questioned whether a simplification of the Radiographic Evaluation and Scoring System would improve reliability and reproducibility.

Categorization diminishes the reliability of hip scores.

Scoring systems frequently are used to assess the outcome of total hip arthroplasty. The result may be presented as a numeric value, or in descriptive terms such as excellent, good, fair, and poor (category system). The current study was done to investigate the influence of descriptive and numeric outcomes for interobserver reliability and interscore correlation of five different hip scores.

Total knee arthroplasty infection: significance of delayed aspiration.

The records of 35 patients with total knee arthroplasty infection were reviewed to investigate the significance of delayed aspiration and the success of treatment. In 13 patients, aspiration was performed within 3 months after the onset of symptoms of infection. The median duration of treatment was 243 days, and infection was arrested in all patients.

Scoring systems in total knee arthroplasty.

For assessment of total knee arthroplasty outcome, various scoring systems have been introduced. The current study assessed the interobserver correlation of four commonly used total knee arthroplasty outcome scores. One hundred eighteen total knee arthroplasties were investigated by two independent observers, using the Hungerford score, the Hospital for Special Surgery score, the Knee Society score, and the Bristol score.

Significance of talar distortion for ankle mobility in idiopathic clubfoot.

The abnormal bony feature found most consistently in clubfeet is talar distortion. The significance of the talar distortion for mobility of the tibiotalar joint was investigated. Twenty-seven congenital clubfeet in 19 patients were examined at a minimal followup of 20 years.

Intrapelvic complications after total hip arthroplasty failure.

Background: Severe total hip arthroplasty failure with central migration of prosthetic components is uncommon. If perforation of the medial acetabular wall occurs, injuries of intrapelvic structures may result.

Data Sources: A meta-analysis of the English literature was performed.