Total Hip Replacement

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Total hip replacement or THR is a clinically effective procedure for the treatment of pain and disability that arises due to the final stage arthritis of the hip. THR is prescribed for the patients who do not respond to the options that are non surgical, self management, education of the patient, physical therapy, acupuncture, and exercise. ( Pivec. et.al,2012). Numerous procedures , a range of implant designs are available and it is the surgeon who has to decide upon as to which type of fixation technique should be used and which bearing couple should be chosen, component fixation method. Both cementless and cemented fixation are used currently for THR surgery. The implants of total hip replacement consists of acetabular component,…show more content…
The prosthetic design is associated with new materials development that will have biological compatibility that is accetable. The new materials should have better physical properties, that results in the better integration into bones along with better wear characteristics. Designs have been developed with the composites of plastics, metals and elements that confer flexibility as well as strength at the same time. Cement less prosthetic designs aid in the greater in growth of bone that would assure better and long term fixation. The designs should be developed in such a way that there is a minimal loosening, metallosis and osteolysis. Technologies need to be developed in such a way that devices and designs should be economical at reasonable costs that would reduce the burden of health care. Composites are applied in many areas of orthopaedics. and the major advantage of using composites is their biocompatibility and exceptional strength characters. Due to their range of application, there is scope for innovation. The innovation in the area of prosthetics is definitely offers the prospects of more and more natural…show more content…
1. Comparison of (a) stiffness, (b) strength and (c) fracture toughness for metals, technical ceramics, composites and fibre reinforced plastics with respect to those of bone
[23–31]. CF: carbon fibre, GF: glass fibre, PA12: polyamide12, PC: polycarbonate, PE: polyethylene, PEEK: poly ether ether ketone, PLGA: poly(l-lactic-co-glycolic acid), PLLA:poly(l-lactic acid), PP: polypropylene, PSU: polysulfone, PTFE: polytetrafluoroethylene, PUR: polyurethane.

References
Clarke IC, Good V, Williams P, Schroeder D, Anissian L, Stark A, et al.Ultra-low wear rates for rigid-on-rigid bearings in total hip replacements.Proc Inst Mech Eng H. 2000;214(4):331–47

Lui DF, Bandorf N, Riordan P, Jaweesh O, DuruB, Bennett D. Preoperative comorbidity and modesof failure in revision hip arthroplasty:a single-surgeon series in a tertiary referral centre.
Eur J Orthop Surg Traumatol. 2013;23(3):329-333.
Philpott A,Weston-Simons JS,Grammatopoulos G, et al. Predictive outcomes of revision total hip replacement—a consecutive series of 1176 patients with aminimum 10-year follow-up.
Maturitas. 2014;77(2):185-190.
Pivec R, Johnson A J, Mears S C, Mont M A. Hip arthroplasty. Lancet 2012; 380 (9855):

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