New Alternative Surgical Technique for Managing Proximal Tibia Chronic Osteomyelitis: Anterior Approach with Establishment of Bone Marrow Communication via Intramedullary Reaming

<b>Background/Objectives</b>: Surgical treatment of chronic osteomyelitis of the proximal tibia is challenging due to limited soft tissue coverage, poor blood supply, and the weight-bearing function of the bone. Moreover, structural instability following curettage may necessitate fixation with metallic implants, which carries a risk of biofilm formation and often requires multi-stage surgeries. <b>Methods</b>: To address these challenges, we developed a new surgical technique combining an anterior approach with establishment of bone marrow communication via intramedullary reaming. The anterior approach provides central access to the infection site, minimizing cortical and cancellous bone loss and eliminating the need for internal fixation. Intramedullary reaming connects the infection site to the systemic circulation, enhancing local blood supply, facilitating intravenous antibiotic delivery, and promoting host immunity. <b>Results</b>: Fourteen patients with proximal tibia osteomyelitis were analyzed. The new surgical technique enabled precise targeting of the infection site, substantially reduced unnecessary bone loss, and eliminated the need for internal fixation. Excluding five cases with Cierny-Mader (C-M) classification IV that required fixation due to inherent structural instability, all nine cases with C-M classification III were treated without internal fixation. Two out of three patients with severe post-traumatic osteomyelitis following Gustilo-Anderson type III open fractures were successfully cured. At a mean follow-up of 53.7 months (range: 2.6-104.9 months), 11 of 14 patients were completely cured with a single surgical intervention, corresponding to a 78.6% cure rate. <b>Conclusions</b>: This new surgical approach enables one-step surgery, avoids the risks of biofilm formation associated with additional fixation, and enhances treatment efficacy through enhancing host immunity, representing an effective strategy for managing proximal tibia osteomyelitis.