The postoperative infectious spondylitis has been reported to occur among every 1% to 12%. It is difficult to early diagnose in some cases. If the diagnosis is delayed, it can be a life-threatening condition. We report a 32-year-old male patient with postoperative infectious spondylitis. He had surgical treatments for traumatic intervertebral disc herniations in L3-4 and L4-5. Three weeks after surgery, he complained for fever and paraplegia. Cervicothoracic magnetic resonance imaging showed the collapsed T2 and T3 vertebral body with changes of bone marrow signal intensity. Moreover, it showed anterior and posterior epidural masses causing spinal cord compressions which suggested infectious spondylitis. After the use of antibiotics and surgical decompressions T2-T3, his general conditions were improved and muscle power of lower extremities began to be gradually restored. However, we could not identify the exact organisms that may be the cause of infectious spondylitis. It could be important that the infectious spondylitis, which is presented away from the primary operative level, should be observed in patients with fevers of unknown origin and paraplegia.
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To identify the correlations between the location of multifidus atrophy and the level of lumbar radiculopathy.
Thirty-seven patients who had unilateral L4 or L5 radiculopathy were divided into 2 groups; the L4 radiculopathy (L4 RAD) group and the L5 radiculopathy (L5 RAD) group. Bilateral lumbar multifidus muscles at the mid-spinous process level of L4 vertebra (L4 MSP), the mid-spinous process level of L5 vertebra (L5 MSP), and the mid-sacral crest level of S1 vertebra (S1 MSC) were detected in T1 axial magnetic resonance imaging. The total muscle cross-sectional area of multifidus muscles (TMCSA) and the pure muscle cross-sectional area of multifidus muscles (PMCSA) were measured by a computerized analysis program, and the ratio of PMCSA to TMCSA (PMCSA/TMCSA) was calculated.
There were no significant differences in TMCSA between the involved and the uninvolved sides in both groups. PMCSA was only significantly smaller at the S1 MSC on the involved side as compared with the uninvolved side in the L5 RAD group. The ratio of PMCSA to TMCSA was the lowest at the L5 MSP on the involved side in the L4 RAD group and at the S1 MSC on the involved side in the L5 RAD group.
Our findings suggest that the most severe atrophy of multifidus muscle may occur at the mid-spinous process or mid-sacral crest level of the vertebra which is one level below the segmental number of the involved nerve root in patients with a single-level, unilateral lumbar radiculopathy.
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To determine the relation between postvoid residual (PVR) and the occurrence of urinary tract infection (UTI) in stroke patients.
One hundred and eighty-eight stroke patients who were admitted to an inpatient rehabilitation unit and who did not have UTI on admission (105 males, 83 females, mean age 67.1 years) were included in this study. The PVR was measured 3 times within 72 hours after admission. Mean PVR, demographic variables, K-MMSE (Korean Mini-Mental State Examination), initial K-MBI (Korean Modified Barthel Index), Foley catheter indwelling time and stroke type were defined and the relation to the occurrence of UTI was analyzed.
UTI occurred in 74 patients (39.4%) during admission to the rehabilitation unit. There were significant differences between the UTI and non-UTI groups in K-MMSE, K-MBI, Foley catheter indwelling time (p<0.01). However, age, gender, stroke location and type were not associated. The occurrence of UTI was 4.87 times higher in the patients with a mean PVR over 100 ml than in those with a mean PVR <100 ml. The mean PVR was 106.5 ml in the UTI group, while it was 62.7 ml in the non-UTI group (p<0.01). PVR was not associated with age.
The UTI rate is higher when the mean PVR is over 100 ml irrespective of gender and age. Close monitoring of PVR and appropriate intervention is needed to reduce the occurrence of UTI in stroke patients.
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