More about partial hip replacement surgery > Appendix AĬlassifications of fractured neck of femur (Fig. In the case of more active older patients with a longer life expectancy, a total hip replacement is favored for displaced femoral neck fractures.
Overall, partial hip replacement is less complex an operation than total hip replacement, and provides generally satisfactory results for less active elderly patients with a lower life expectancy. Many patients do manage to get back to a good quality of life, however about as many also end up requiring long term care in one form or another due to compounded age and health related issues. Recovery may be difficult if you are elderly and in poor general health. The device is inserted, and the surgical opening closed, usually with vacuum drains to remove any excess blood drainage. Similar to a total hip replacement, the femoral head of your upper thigh bone is removed and the shaft reamed out to accept the stem of the partial implant. One of the drawbacks of cementless fixation is risk of instability and loosening due to potential poor bone quality in older and elderly patients. Meaning, the implant can be affixed into position either with the use of bone cement, or without. Like total hip replacement implants, partial hip replacement implants come in cemented and cementless versions. a modular prosthesis with a separate ball head.a Thompson prosthesis which is generally affixed with bone cement.an Austin Moore implant which is used without cement (the bone grows through the holes).
The unipolar and modular devices are unique to partial hip replacement procedures and would not be considered as treatment for an arthritic hip, which requires a total hip replacement. Other more recently developed partial hip replacement implants are modular, allowing different combinations of stem, neck length, and head. The Austin Moore and Thompson prosthesis are common examples of the unipolar design, where hip movement occurs directly between the prosthesis and the acetabulum (hip socket). The unipolar design features a solid metal ball and stem that replaces the femoral head and upper femur (thigh bone). Unlike total hip replacement implants which have a separate stem and ball, the classic partial hip replacement implants pioneered in the 1960’s and still used today incorporate a complete stem and ball design. Your surgeon will determine if your fractured hip can be repaired, or if your state of health and expected longevity qualifies you for a partial hip replacement, or if other factors such as advanced osteoporosis necessitates the need for a total hip replacement. The treatment of hip fractures is dictated by the classification of the fracture and the viability of the head of the femur (See: Appendix A). It is theorized that sometimes an elderly person’s hip bone may become so weak it can actually give way, causing them to fall, rather than the fall causing the break in their hip. Their bones may be brittle due to osteoporosis, or they may be unsteady on their feet and more likely to trip and/or stumble.
2 The most common reason older people fracture their hips is that they are frail and not in good health. More than 270,000 hip fractures occur in the United States each year, with about 90% occurring in people older than 60. More about Partial Hip vs Total Hip Replacement > A total hip replacement implant, by contrast, replaces both the ball and socket of your hip joint. Partial hip replacement surgery is more properly known as ‘hemiarthroplasty’, or ‘hemi’, meaning ‘half a joint’ because it replaces only the ball portion of the hip joint, not the socket portion. 1 It is usually an emergency surgery made necessary from a fall or other accident fracturing the hip. Partial hip replacement implants are used most commonly to treat a fractured hip in an older patient, rather than a hip damaged by osteoarthritis, for which total hip replacement is a treatment.
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