Frank S. Kleinstueck

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Seventy-six patients with septic arthritis (78 affected joints) were treated with a combination of arthroscopic irrigation, débridement, and antibiotic therapy according to the tested bacterial sensitivity. There were 62 knee, 10 shoulder, 5 ankle joints, and 1 hip joint. No antibiotics were added to the irrigating solution. The arthroscopic and(More)
The Core Outcome Measures Index (COMI) is a short, multidimensional outcome instrument, with excellent psychometric properties, that has been recommended for use in monitoring the outcome of spinal surgery from the patient’s perspective. This study examined the feasibility of implementation of COMI and its performance in clinical practice within a large(More)
STUDY DESIGN An in vitro biomechanical study of C1-C2 posterior fusion techniques was conducted using a cadaveric model. OBJECTIVE To investigate and compare the acute stability afforded by a novel rod-based construct that uses direct polyaxial screw fixation to C1 and C2 with contemporary transarticular screw and wire techniques. SUMMARY AND BACKGROUND(More)
STUDY DESIGN Prospective study. OBJECTIVE To examine the association between structural abnormalities recorded on magnetic resonance imaging (MRI) and outcome after evidence-based conservative treatment in patients with chronic nonspecific low back pain (LBP). SUMMARY OF BACKGROUND DATA In most guidelines for the management of LBP, MRI is not(More)
The Core Outcome Measures Index (COMI) is a reliable and valid instrument for assessing multidimensional outcome in spine surgery. The minimal clinically important score-difference (MCID) for improvement (MCIDimp) was determined in one of the original research studies validating the instrument, but has never been confirmed in routine clinical practice.(More)
STUDY DESIGN A retrospective evaluation of radiographs in patients with idiopathic scoliosis was undertaken to assess predictors of flexibility. OBJECTIVE To evaluate potential predictors of flexibility in patients with thoracolumbar and lumbar scoliosis. SUMMARY OF BACKGROUND DATA Curve flexibility is an important consideration in the operative(More)
Decompression surgery is a common and generally successful treatment for lumbar disc herniation (LDH). However, clinical practice raises some concern that the presence of concomitant low back pain (LBP) may have a negative influence on the overall outcome of treatment. This prospective study sought to examine on how the relative severity of LBP influences(More)
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. The aim(More)
STUDY DESIGN Longitudinal study of the measurement properties of a brief outcome instrument. OBJECTIVE In patients undergoing surgery for lumbar spinal stenosis, we compared the responsiveness of the Core Outcome Measures Index (COMI) with that of the condition-specific Swiss Spinal Stenosis Measure (SSM), an instrument developed to assess patients with(More)
OBJECT The contemporary assessment of spine surgical outcome primarily relies on patient-centered reports of symptoms and function. Such measures are considered to reduce bias compared with traditional surgeon-based outcome ratings. This study examined the agreement between patients' and surgeons' ratings of outcome 1 year after spine surgery. METHODS The(More)