.Single axis knee joint with manual lock VS Bearing lock knee joint

Some patients hope that the knee joint has very good safety, so you can choose a manually locked knee joint, which can be manually locked, and will automatically unlock at the early stage of walking. This is the most stable knee joint. Although this joint requires more power to use and looks stiff and clumsy, it can walk in a locked condition. The manually locked knee joint is very suitable for patients with weak control of the prosthesis and for active patients who often walk on uneven terrain.

Another option is the weight-bearing self-locking knee joint, which is also very stable and is usually used in the first prosthesis. When weight is applied to the joints, the joints will not bend until the effect of gravity is eliminated (raise the leg to prepare to walk). The system uses constant damping during the swing phase of the prosthesis, but uses gravity to keep it mechanically locked during the standing phase. For older or less active amputees, this knee joint is the most common choice.