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Bone, Joint, and Prosthesis Infections

A spectrum of musculoskeletal infections requiring multidisciplinary management with surgery and prolonged antibiotics.

Written by: Saygı Hospital Health Guide Editorial Board
Last updated:

This content has been compiled by the Saygı Hospital Health Guide Editorial Board and is periodically reviewed by a specialist physician.

References (5)

This content is for informational purposes only and does not constitute medical advice. You can book an appointment at our Internal Medicine department. Book Appointment →

What is Bone, Joint, and Prosthesis Infections?

Bone, joint, and prosthesis infections encompass a spectrum of musculoskeletal infections including osteomyelitis (bone infection), septic arthritis (joint infection), and prosthetic joint infection (PJI). These infections may be acute or chronic and arise via hematogenous, contiguous, or direct inoculation routes.

Septic arthritis is a medical emergency that can rapidly destroy joint cartilage. Most cases are bacterial (Staphylococcus aureus most common in adults; Neisseria gonorrhoeae in young sexually active adults). Risk factors include prior joint disease, IV drug use, immunosuppression, and prosthetic joints.

Prosthetic joint infection is a feared complication of joint replacement surgery occurring in 1-2% of primary arthroplasties and higher in revisions. Biofilm formation on prosthetic surfaces protects bacteria from antibiotics and host immunity. PJI is classified by timing (early <3 months, delayed 3-12 months, late >12 months) and management requires either prosthesis retention with debridement (DAIR) and antibiotics, or staged exchange (one-stage or two-stage revision).

Symptoms

Septic arthritis: acute joint pain, swelling, warmth, redness, decreased range of motion
Fever and chills (variable)
Inability to bear weight (lower extremity)
Single joint involvement (most common)
Polyarticular involvement (gonococcal, immunocompromised)
Migratory polyarthralgia (gonococcal arthritis-dermatitis)
Osteomyelitis: deep bone pain, swelling, sinus tract drainage
Prosthetic joint infection: pain, swelling, drainage, prosthesis loosening
Early PJI: erythema, warmth, fever, wound drainage
Late PJI: persistent or new joint pain, often without systemic signs
Sepsis with hematogenous joint seeding

Risk Factors

Prior joint disease (rheumatoid arthritis, osteoarthritis)
Prosthetic joint
Recent joint injection or arthroscopy
IV drug use
Immunosuppression: HIV, transplant, chemotherapy, steroids
Diabetes mellitus
Chronic kidney or liver disease
Skin infection or ulcer
Bacteremia from any source
Sexually active young adults (gonococcal arthritis)
Surgical site complications (hematoma, dehiscence)
Obesity
Smoking
Trauma with bone or joint exposure
Hemodialysis access infections

When to See a Doctor?

If you experience any of the following symptoms, seek medical attention promptly:

  • Acute joint pain with swelling, warmth, redness
  • Fever with joint pain
  • Inability to use a joint
  • Drainage from prosthetic joint area
  • Persistent pain after joint replacement (any time)
  • Open wound near a joint or prosthesis
  • Bacteremia in patient with prosthesis
  • Migratory joint pain in young adult (consider GC)
  • Failed antibiotic course for joint infection
  • Worsening symptoms despite treatment

Treatment Methods

01
Septic arthritis: emergent joint aspiration for synovial fluid analysis and culture
02
Synovial fluid: cell count >50,000 with PMN predominance, Gram stain, culture, crystals
03
Empirical antibiotics: vancomycin plus broad Gram-negative coverage (ceftriaxone or cefepime)
04
Add antipseudomonal coverage in IV drug users
05
Joint drainage: arthroscopic or open lavage
06
Repeated arthrocentesis: alternative for some joints (knee)
07
Targeted antibiotic therapy based on culture, typically 2-4 weeks IV then oral
08
Gonococcal arthritis: ceftriaxone, joint drainage, treat partners
09
Prosthetic joint infection (PJI): multidisciplinary team
10
Acute PJI: DAIR (debridement, antibiotics, implant retention) plus 3-6 months oral antibiotics
11
Chronic PJI: two-stage revision (prosthesis removal, antibiotic spacer, delayed reimplantation)
12
One-stage exchange: select cases
13
Antibiotic-impregnated cement spacers
14
Specific regimens: rifampin combinations for staphylococcal PJI biofilm
15
Suppressive oral antibiotics: indefinite in select cases
16
Source control essential — antibiotics alone rarely cure prosthetic infections
17
Optimize comorbidities: diabetes, nutrition, smoking cessation
18
Physical therapy: gradual return to function
19
Long-term follow-up with infectious disease and orthopedics

Which Department to Visit?

You can visit our Enfeksiyon Hastalıkları department for these complaints. Our specialist physicians will create the most suitable treatment plan for you.

Learn About Enfeksiyon Hastalıkları Department

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Health Disclaimer: The information on this page is prepared for general informational purposes only. It does not replace medical diagnosis and treatment. Please consult your physician for your complaints. Saygı Hospital does not accept responsibility for actions taken based on the information on this page.