A Pyramid Socket Adapter is a prosthetic component used to connect the prosthetic socket with other components such as a pylon, knee joint, or foot. It provides a secure and adjustable connection between the socket and the prosthetic assembly. The pyramid design allows alignment adjustments in multiple directions, helping the prosthetist achieve proper positioning of the limb. It is commonly used in lower-limb prostheses, especially transtibial (BK) and transfemoral (AK) applications. The adapter is available in different materials, including aluminium, stainless steel, and titanium, depending on the patient’s weight, activity level, and application. Proper alignment is essential for comfortable gait, stability, and efficient energy transfer. Pyramid adapters are widely used because they offer flexibility during fitting, easy alignment correction, and reliable mechanical connection within the prosthetic system