Osteomyelitis of the Long Bones

TLDR

Long bone osteomyelitis presents varied challenges, with severity staged by infection features, etiology, pathogenesis, bone involvement, duration, and host factors; it can be hematogenous or contiguous, typically involving a single organism such as *Staphylococcus aureus*, and multidrug‑resistant bacteria pose ongoing concerns. This article offers a basic review of the classification, etiology, epidemiology, pathogenesis, and treatment of long bone osteomyelitis. Treatment relies on culture‑specific antibiotics, aggressive debridement, muscle flaps, and bone grafts.

Abstract

Long bone osteomyelitis presents a variety of challenges to the physician. The severity of the disease is staged depending upon the infection's particular features, including its etiology, pathogenesis, extent of bone involvement, duration, and host factors particular to the individual patient (infant, child, adult, or immunocompromised). Long bone osteomyelitis may be either hematogenous or caused by a contiguous spread of infection. A single pathogenic organism is almost always recovered from the bone in hematogenous osteomyelitis; Staphylococcus aureus is the most common organism isolated. A variety of multidrug-resistant organisms of bacteria continue to be a source of concern in arresting infection. The primary weapons to treat these infections are culture-specific antibiotics, aggressive debridement, muscle flaps, and bone grafts. This article offers a basic review of the classification, etiology, epidemiology, pathogenesis, and treatment of long bone osteomyelitis.