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[Discitis in childhood: integrated neuroradiological imaging in diagnosis and follow-up study of one case].

Discitis is an inflammatory disease of the intervertebral disc which has usually a benign evolution in childhood. It often recognizes an infectious etiology. Still discussed however is the possibility of a primitive discal involvement (not secondary to a vertebral inflammation) or of a non infectious etiology and the subsequent more correct diagnostic-therapeutic procedures. We report a case of a girl with discitis diagnosed early and treated with antibiotics and orthopedic corset, whose follow-up shows a benign evolution. We underline the importance of modern neuroradiological imaging: in particular, MR plays a major role in the inflammatory diseases of the column, both in diagnosis and in follow-up. MR scans of the involved disc allow frequent controls without radiogenic risks and with a good resolution because of the multiplanarity typical of the method.

Anti-Infective Agents

Two cases of discitis due to Propionibacterium acnes.

We report two cases of discitis due to Propionibacterium acnes and review previously published cases of bone and joint infections in which this organism was recovered as a pure culture. P. acnes is an anaerobic organism usually considered a normal inhabitant of the skin but capable of producing a variety of infections including discitis, osteitis, arthritis, and chest wall osteitis. Most patients were immunocompetent. A few infections occurred spontaneously, whereas others were secondary to a break in the skin or to implantation of foreign material into the body for instance during internal fixation of a fracture or arthroplasty. Cases of P. acnes chest wall infection have been reported in patients with palmoplantar pustulosis or chronic or multifocal osteitis, supporting a role for P. acnes in SAPHO syndrome.

Adult

Discitis--a rare early symptom of ankylosing spondylitis.

This case report describes a patient who suffered from backache at the age of 12 years. The initial diagnosis was Scheuermann's disease but repeated examinations showed a progressive discitis, without signs of arthritis of the sacro-iliac joints. There was also a recurring effusion of the left knee. Three years later the clinical and radiological evaluation showed irreversible immobilisation of the dorsolumbar spine, whereas the sacro-iliac joints were mildly affected. Discitis seems to be a rare early symptom of ankylosing spondylitis.

Adolescent

Diagnosis of discitis by SPECT technetium-99m MDP scintigram. A case report.

A 29-year-old male presented with a two month history of intermittent low back pain following a febrile illness. Two planar bone scans performed with Tc-99m MDP were normal despite roentgenographic and SPECT scintigraphic evidence of discitis. This case demonstrates the increased sensitivity of SPECT in the diagnosis of discitis.

Adult

Bone scintigraphy in discitis and related disorders in children.

Thirty-nine children with suspected pathology involving the vertebral column were investigated haematologically, radiographically, and by bone scintigraphy using technetium 99M pyrophosphate. Fifteen children were shown to have inflammatory disease of the vertebrae. A further six suffered from Scheuermann's disease, two from benign tumours, and the remainder from miscellaneous diseases not specifically involving bony pathology. The nuclide scan was abnormal in all cases of discitis and osteomyelitis, and in the two tumours. All of the other conditions were associated with a normal bone scan. This finding is of considerable diagnostic importance, and leads support to the theory that discitis is due to bacterial infection.

Adolescent

Juvenile discitis.

Over a period of three years four girls and two boys presented with discitis. All were less than 5 years old at presentation, and each had a short history of symptoms. Three were initially thought to have pathological defects of the abdomen. All children showed abnormal posturing with exaggerated lumbar lordosis. Diagnosis was essentially clinical. All cultures were sterile. The erythrocyte sedimentation rate was increased in all the children and all had mild pyrexia. Symptoms lasted from two to 8 weeks. Discitis should be considered in any child with fever, abnormal posturing, and refusal to walk. Early recognition may avoid unnecessary diagnostic and treatment procedures.

Anti-Bacterial Agents

Gowers' sign in discitis in childhood.

Three cases of discitis in early childhood presented with acute refusal to walk or change in gait pattern without neurologic deficits. In all three, a Gowers' sign was observed, although none had muscular weakness. The diagnosis of discitis was confirmed by the characteristic radiographic findings on survey lumbosacral films and/or by a hot spot at the L3 level on technetium bone scan.

Child, Preschool

Septic Discitis.

The clinical and laboratory findings in 15 patients with septic discitis are reported. The clinical picture was that of a sub-acute illness characterized by back pain, spinous process tenderness, and sciatic nerve root irritation. There was a considerable delay from clinical presentation to diagnosis (average 14 wk). The erythrocyte sedimentation rate was the most useful diagnostic laboratory blood test and the best indicator of disease activity. The relative value of plain radiographs, tomography, and radionuclide bone scans is discussed. Needle aspiration of the disc space was found to be a useful diagnostic test. We found that a diagnosis of septic discitis could be made even in the absence of positive bacterial cultures from various biologic fluids or from the disc space. Long-term oral and intravenous antibiotic therapy with controlled rest resulted in a favourable outcome.

Adolescent

Intervertebral discitis in children: a review of 12 cases.

Twelve children with lumbar discitis were reviewed. The average age at diagnosis was 2.5 years. Seven were girls, and the follow-up varied between 2 and 10 years (average 5 years). The clinical signs were general irritability, abdominal or hip pain and refusal to walk or to sit. The erythrosedimentation rate was elevated in all but two. Radiographic narrowing of the disc space was seen in seven patients. Needle disc aspiration was done in five cases with two being positive for Staphylococcus aureus. Blood culture was positive in one case. Magnetic resonance imaging helped to diagnose the condition in three. Treatment consisted of bed rest and immobilisation of the spine; intravenous antibiotics were given to nine children. The natural course of the disease was benign in all our twelve cases.

Anti-Bacterial Agents

[Discitis in children and adolescents].

This study reported on the anamnesis, clinical and instrumental findings as well as therapy in a girl with discitis. The described diagnostic problems and course are characteristic of this frequently unrecognized disease, the cause of which has not yet been fully clarified. Diagnostic and therapeutic procedures suggested in the literature were critically evaluated.

Adolescent

[Early diagnosis of postoperative discitis].

This study demonstrates that infection of the retro- and intradiscal space is probable, when the temperature rises above over 37 degrees and CRP exceeds 2.0 mcg/ml 5 days postoperatively. MRI of 4 patients confirmed a retrodiscal infection that was indicated by a hyperintense band shaped structure in PS-sequences and which was space occupying with respect to the dural sac. Discitis was demonstrated by intradiscal hyperintensity in STIR images and by enhancement in T1 weighted images following the application of Gadolinium DTPHA. Diagnosis is simplified by comparison of pre- and postoperative MR-examination. Infection can be cured by treatment with antibiotics (Tobramycin and Clindamycin) bedrest and plaster cast.

Blood Sedimentation

[Postoperative lumbar intervertebral discitis. A review of a 15-year period and 7,493 operations].

The incidence of postoperative discitis in a series of almost 7500 surgical interventions covering a period of 15 years is reported. Ninety patients (1.2%) were found to be suffering from typical symptoms, which are described and discussed. It is pointed out that above all radicular pain diminished, while on the other hand severe pain occurred in the lumbar spine, caused by movement and vibration, accompanied by a usually sharp rise in ESR, up to values of 100/200 mm. It is pointed out that conventional tomography is the diagnostic tool of choice, diagnosis being possible as of approx. three weeks postoperatively. The social implications of this important complication are pointed out, in particular the fact that only 50% of patients were able to return to full-time work in their old occupations, while the rest had to retire or accept a less strenuous job.

Adult

Intervertebral discitis in childhood.

Many paediatricians are unaware of the disease entity of discitis, which must be included in the differential diagnosis of several acute and subacute diseases of infancy and childhood. In order to draw attention to this disorder, three Swedish and two Arabic children, aged from 9 months to 3 years, are jointly presented. The onset of symptoms was 2-4 weeks prior to admission. The clinical diagnosis was verified by plain X-ray of the spine and bone scanning. Two of the children had low grade fevers. The erythrocyte sedimentation rates were moderately elevated, while white blood cell counts were normal or slightly increased. Blood cultures were negative. The children were treated with immobilization, and three of them received antibiotics. Full recovery was achieved in all children after 1-2 months. The diagnostic procedure and the rationale of using or not using antibiotic treatment is discussed.

Child, Preschool

Rheumatoid discitis with cord compression at the thoracic level.

A 63-year-old man presented with spinal cord compression caused by rheumatoid discitis at a high thoracic level. Nuclear magnetic resonance imaging proved to be very useful in evaluating the extent of the inflammatory process. Early decompression and internal fixation resulted in cure with only some residual functional impairment.

Arthritis, Rheumatoid

Discitis caused by the Centers for Disease Control microorganism Group Ve-1.

An unusual case of discitis in a 60-year-old, insulin-dependent, diabetic man is presented. Radiographs of the lumbar spine demonstrated changes associated with infection of the intervertebral disc space. Cultures from the L5-S1 disc space grew the microorganism designated by the Centers for Disease Control as Group Ve-1, an organism that has had questionable clinical significance in the past, and has not been reported as a pathogen in an intervertebral disc space.

Anti-Bacterial Agents

Percutaneous discectomy for the treatment of bacterial discitis.

METHODS. Percutaneous discectomy was successfully used to diagnose and treat bacterial discitis. CONCLUSIONS. This technique was successful in obtaining a bacteriologic diagnosis, relieving the patient's symptoms and assisting in the eradication of the infection. With percutaneous discectomy, there is lower morbidity and cost than with open treatment. Any comments on the overall effectiveness of this technique will need to be based on additional cases.

Discitis

Aspergillus discitis with acute disc abscess.

STUDY DESIGN: Aspergillus osteomyelitis of the vertebral body and disc space is rare. This report discusses a case that occurred in an immunosuppressed 29-year-old man and reviews the pertinent medical literature. OBJECTIVES: To review the management and treatment of Aspergillus osteomyelitis of the vertebral body and disc space. SUMMARY OF BACKGROUND DATA: The patient presented with acute neurologic compromise resulting from L5-S1 discitis and a large epidural soft tissue component secondary to the Aspergillus infection. RESULTS: The patient underwent aggressive surgical debridement along with treatment with amphotericin B and had a complete clinical recovery. CONCLUSIONS: The authors recommend a combined medical-surgical approach in most cases of vertebral Aspergillus osteomyelitis. Early surgery with vigorous surgical debridement along with antifungal treatment seems to yield a good outcome.

Abscess

Osteomyelitis and intervertebral discitis caused by Pseudomonas pickettii.

Pseudomonas pickettii, a nonfermenting, gram-negative rod, is rarely pathogenic. Previous reports of infection with P. pickettii have largely involved direct contamination of supplies presumed to be sterile. We describe a case of vertebral osteomyelitis and intervertebral discitis caused by P. pickettii in a debilitated patient. The aggressive nature of this infection demonstrates that P. pickettii may be a more invasive organism than previously noted, particularly in hosts with weakened immunity secondary to underlying disease.

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