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Evaluation of the acutely limping child
1University of Southern California School of Medicine, Los Angeles, USA.
Insights
A limp is an abnormal gait pattern. Identifying the cause requires considering various conditions, patient age, and potential emergencies like septic hip, guiding diagnostic work-up.
Area of Science:
- Pediatrics
- Orthopedics
- Family Medicine
Background:
- A limp is characterized by an asymmetric deviation from a normal gait pattern.
- The differential diagnosis is broad, encompassing trauma, infection, neoplasia, and various disorders.
- Overlooking less common causes like discitis or psoas abscess is a risk.
Purpose of the Study:
- To outline the differential diagnosis of a limp in clinical practice.
- To emphasize considering hip pathology in patients with knee or thigh pain.
- To highlight age-specific conditions and the need for vigilance in emergent cases.
Main Methods:
- Review of common and uncommon causes of limping.
- Emphasis on age-specific differential diagnosis.
- Consideration of referred pain patterns (e.g., hip pain presenting as knee pain).
Main Results:
- A comprehensive differential diagnosis is essential for accurate diagnosis.
- Patient age is a critical factor in narrowing diagnostic possibilities.
- Prompt recognition of emergent conditions like septic hip is crucial.
Conclusions:
- Family physicians must identify the etiology of a limp.
- Determining the need for further observation versus immediate work-up is key.
- A systematic approach considering all potential causes ensures appropriate patient management.
Abstract:
A limp may be defined as any asymmetric deviation from a normal gait pattern. The differential diagnosis of a limp includes trauma, infection, neoplasia and inflammatory, congenital, neuromuscular or developmental disorders. Initially, a broad differential diagnosis should be considered to avoid overlooking less common conditions such as diskitis or psoas abscess. In any patient with a complaint of knee or thigh pain, an underlying hip condition should be considered. The patient's age can further narrow the differential diagnosis, because certain disease entities are age-specific. Vigilance is warranted in conditions requiring emergent treatment such as septic hip. The challenge to the family physician is to identify the cause of the limp and determine if further observation or immediate diagnostic work-up is indicated.