The COLLO-MIS stem was designed to save bone tissue and ensure a rapid functional recovery. By sparing the femoral neck without the risk of unequal leg length and compressing the cancellous bone, an anatomically accurate reconstruction is ensured while also saving as much of the patient’s bone stock as possible. The stem geometry and double macroporous coating provide for immediate stability and the restoration of the biomechanical balance required for optimal osteointegration. The freedom to choose the preferred soft tissue-sparing approach and the latest generation tribological couplings in terms of materials and diameters combine to hasten the patient’s functional recovery.