The loss of femoral bone stock in revision total hip arthroplasty complicates both the removal of an existing implant and the fixation of a new component. Imaging with plain radiographs and computed tomography (CT) plays a critical role in evaluating femoral anatomy and the extent of bone loss, guiding the choice of surgical approach and implant selection. The Paprosky classification is the most commonly used system for preoperative femoral evaluation, and it categorizes femoral bone loss by severity and location. This classification system aids in determining the complexity of a revision procedure, the potential for reconstruction, and the implant most suited for a given patient. Serial radiographs and advanced imaging including CT scans may provide detailed insights into the extent and specifics of bone loss, informing choices between implants such as extensively porous-coated stems, cortical strut allografts, or custom implants. Thus, effective preoperative planning through evaluation of femoral anatomy and the extent of bone loss is pivotal to optimize the outcome of revision total hip arthroplasty.