A person's<unk>  should be designed and assembled according to the person's appearance and functional needs. For instance, a person may need a transradial<unk> , but the person need to choose between an aesthetic functional device, a myoelectric device, a body-powered device, or an activity specific device. The person's future goals and economical capabilities may help them choose between one or more devices. Craniofacial<unk>  include intra-oral and extra-oral<unk> . Extra-oral<unk>  are further divided into hemifacial, auricular (ear), nasal, orbital and ocular. Intra-oral<unk>  include dental<unk> , such as dentures, obturators, and dental implants.<unk>  of the neck include larynx substitutes, trachea and upper esophageal replacements, Somato<unk>  of the torso include breast<unk>  which may be either single or bilateral, full breast devices or nipple<unk> . Penile<unk>  are used to treat erectile dysfunction, correct penile deformity, perform phalloplasty and metoidioplasty procedures in biological men, and to build a new penis in female-to-male gender reassignment surgeries. Limb<unk>  Limb<unk>  include both upper- and lower-extremity<unk> . Upper-extremity<unk>  are used at varying levels of amputation: forequarter, shoulder disarticulation, transhumeral<unk> , elbow disarticulation, transradial<unk> , wrist disarticulation, full hand, partial hand, finger, partial finger. A transradial<unk>  is an artificial limb that replaces an arm missing below the elbow. Upper limb<unk>  can be categorized in three main categories: Passive devices, Body Powered devices, and Externally Powered (myoelectric) devices. Passive devices can either be passive hands, mainly used for cosmetic purposes, or passive tools, mainly used for specific activities (e.g. leisure or vocational). An extensive overview and classification of passive devices can be found in a literature review by Maat et.al. A passive device can be static, meaning the device has no movable parts, or it can be adjustable, meaning its configuration can be adjusted (e.g. adjustable hand opening). Despite the absence of active grasping, passive devices are very useful in bimanual tasks that require fixation or support of an object, or for gesticulation in social interaction. According to scientific data a third of the upper limb amputees worldwide use a passive<unk> etic hand. Body Powered or cable-operated limbs work by attaching a harness and cable around the opposite shoulder of the damaged arm. The third category of<unk> etic devices available is myoelectric arms. These work by sensing, via electrodes, when the muscles in the upper arm move, causing an artificial hand to open or close. In the<unk> etics industry, a trans-radial<unk> etic arm is often referred to as a "BE" or below elbow<unk> . Lower-extremity<unk>  provide replacements at varying levels of amputation. These include hip disarticulation, transfemoral<unk> , knee disarticulation, transtibial<unk> , Syme's amputation, foot, partial foot, and toe. The two main subcategories of lower extremity<unk> etic devices are trans-tibial (any amputation transecting the tibia bone or a congenital anomaly resulting in a tibial deficiency) and trans-femoral (any amputation transecting the femur bone or a congenital anomaly resulting in a femoral deficiency). A transfemoral<unk>  is an artificial limb that replaces a leg missing above the knee. Transfemoral amputees can have a very difficult time regaining normal movement. In general, a transfemoral amputee must use approximately 80% more energy to walk than a person with two whole legs. This is due to the complexities in movement associated with the knee. In newer and more improved designs, hydraulics, carbon fiber, mechanical linkages, motors, computer microprocessors, and innovative combinations of these technologies are employed to give more control to the user. In the<unk> etics industry, a trans-femoral<unk> etic leg is often referred to as an "AK" or above the knee<unk> . A transtibial<unk>  is an artificial limb that replaces a leg missing below the knee. A transtibial amputee is usually able to regain normal movement more readily than someone with a transfemoral amputation, due in large part to retaining the knee, which allows for easier movement. Lower extremity<unk> etics describe artificially replaced limbs located at the hip level or lower. In the<unk> etics industry, a trans-tibial<unk> etic leg is often referred to as a "BK" or below the knee<unk> . Physical therapists are trained to teach a person to walk with a leg<unk> . To do so, the physical therapist may provide verbal instructions and may also help guide the person using touch or tactile cues. This may be done in a clinic or home. There is some research suggesting that such training in the home may be more successful if the treatment includes the use of a treadmill. Using a treadmill, along with the physical therapy treatment, helps the person to experience many of the challenges of walking with a<unk> . In the United Kingdom, 75% of lower limb amputations are performed due to inadequate circulation (dysvascularity). This condition is often associated with many other medical conditions (co-morbidities) including diabetes and heart disease that may make it a challenge to recover and use a<unk> etic limb to regain mobility and independence. For people who have inadequate circulation and have lost a lower limb, there is insufficient evidence due to a lack of research, to inform them regarding their choice of<unk> etic rehabilitation approaches. Types of<unk>  used for replacing joints in the human body Lower extremity<unk>  are often categorized by the level of amputation or after the name of a surgeon: * Transfemoral (Above-knee) * Transtibial (Below-knee) * Ankle disarticulation (e.g.: Syme amputation) *Knee disarticulation *Hemi-pelvictomy (Hip disarticulation) * Partial foot amputations (Pirogoff, Talo-Navicular and Calcaneo-cuboid (Chopart), Tarso-metatarsal (Lisfranc), Trans-metatarsal, Metatarsal-phalangeal, Ray amputations, toe amputations). *Van Nes rotationplasty<unk> etic raw materials<unk> etic are made lightweight for better convenience for the amputee. Some of these materials include: * Plastics: * Polyethylene * Polypropylene * Acrylics * Polyurethane * Wood (early<unk> etics) * Rubber (early<unk> etics) * Lightweight metals: * Titanium * Aluminum *Composites: * Carbon fiber reinforced polymers Wheeled<unk>  have also been used extensively in the rehabilitation of injured domestic animals, including dogs, cats, pigs, rabbits, and turtles.
Prosthesis
Tendon transfer
Surgical lubricant
Ligature 
Hip protector
Joint replacement
Hydrocollator
Premedication