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Nonspecific diskitis in children. A nonmicrobial disease?
S Ryöppy1, J Jääskeläinen, J Rapola
1University Children's Hospital, Helsinki, Finland.
Insights
Nonspecific diskitis in children, a condition without a known cause, typically presents with limited spinal movement and elevated erythrocyte sedimentation rate (ESR). This self-limiting condition usually resolves with minor residual radiographic changes.
Area of Science:
- Pediatric Orthopedics
- Pediatric Infectious Diseases
- Pediatric Rheumatology
Background:
- Nonspecific diskitis is a spinal disc infection without a confirmed microbial origin, often affecting children.
- Early diagnosis can be challenging due to the absence of initial radiographic signs.
Purpose of the Study:
- To describe the clinical presentation, diagnosis, treatment, and outcomes of pediatric nonspecific diskitis.
- To evaluate the role of operative biopsy in diagnosing this condition.
Main Methods:
- Retrospective case series of 18 children treated for nonspecific diskitis between 1970 and 1990.
- Clinical data, erythrocyte sedimentation rate (ESR), and radiographic findings were analyzed.
- Histopathologic examination of biopsy specimens was performed.
Main Results:
- The mean age at admission was 3 years and 3 months, with characteristic symptoms including restricted spinal mobility and elevated ESR.
- Radiographic evidence of disc space narrowing appeared 4-5 weeks after symptom onset.
- All patients achieved clinical recovery within a 5-month to 9-year follow-up, with most showing healed disc space defects.
Conclusions:
- Nonspecific diskitis in children is a self-limiting condition with a typical clinical presentation but potential diagnostic delays.
- Operative biopsy findings suggest a possible nonmicrobial etiology for some cases.
- Conservative management, including bed rest and antimicrobials, leads to favorable outcomes.
Abstract:
Eighteen patients were treated for nonspecific diskitis (diskitis without microbial cause) at the University Children's Hospital in Helsinki during 1970-1990. The mean age at admission was three years three months. The characteristic findings were restriction of spinal mobility and an elevated erythrocyte sedimentation rate (ESR). Radiographic narrowing of the affected disk space was seen four to five weeks after the initial symptoms. An operative biopsy was made in 16 patients, the histologic diagnosis being chronic or subacute nonspecific inflammation in ten, other nonspecific changes in two, and normal tissue in five. Treatment was either bed rest and antimicrobial medication, or bed rest alone. After a follow-up period of five months to nine years, all patients were clinically normal. All but two had radiographic signs of healed disk space defects. Nonspecific diskitis in children is an entity with unknown cause. The clinical picture is typical, but diagnostic difficulties may be encountered during the first weeks when radiographic signs are absent. The disease is self-limiting in most cases, and only minor radiographic changes remain after healing. The results after routine operative biopsy raise the question of a possible nonmicrobial cause.