Emergency Central is a collection of disease, drug, and test information including 5-Minute Emergency Medicine Consult, Davis’s Drug, McGraw-Hill Medical’s Diagnosaurus®, Pocket Guide to Diagnostic Tests, and MEDLINE Journals created for emergency medicine professionals. Explore these free sample topics:
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- Inflammation of the tendon and tendon sheath
- Caused by inflammation, overuse, or infection
- Synovial sheaths cover tendons as they pass through osseofibrous tunnels:
- Visceral and parietal layers of the synovium lubricate and nourish the tendons.
- Infection can be introduced into tendon sheath.
- Skin wound
- Hematogenous spread
- Flexor tenosynovitis (FTS) of hand:
- Typically infectious etiology
- Penetrating injury especially at flexion creases of the finger is the most common mechanism.
- High-pressure “injection” injury to fingers
- Air tools
- Paint sprayers
- Hydraulic equipment
- May appear minor on the surface but are associated with high incidence of FTS
- De Quervain tenosynovitis:
- Caused by overuse
- Inflammatory in nature
- 2 thumb tendons: The abductor pollicis longus (APL) and extensor pollicis brevis (EPB).
- On their way to the thumb, the APL and EPB traverse side-by-side through a thick fibrous sheath that forms a tunnel at the radial styloid process
- GC tenosynovitis:
- Neisseria gonorrhea
- Nongonococcal infectious tenosynovitis:
- Staphylococcus aureus and Streptococci are most common in penetrating injuries.
- Pasteurella multocida is common with cat bites.
- Eikenella corrodens is common in human bites.
- Pseudomonas is seen in patients with diabetes or marine-associated injuries.
- Mycobacterium species may occur in immunocompromised patients.
- Fungal tenosynovitis may occur from puncture wounds due to thorns or woody plants