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Replacement arthroplasty (from Greek arthron, joint, limb, articulate, + plassein, to form, mould, forge, feign, make an image of), or joint replacement surgery, is a procedure of orthopedic surgery in which an arthritic or dysfunctional joint surface is replaced with an orthopedic prosthesis. Joint replacement is considered as a treatment when severe joint pain or dysfunction is not alleviated by less-invasive therapies. It is a form of arthroplasty, and is often indicated from various joint diseases, including osteoarthritis and rheumatoid arthritis.
Joint replacement surgery is becoming more common with knees and hips replaced most often. About 773,000 Americans had a hip or knee replaced in 2009.

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  1. P

    3 way valve replacement

    Hi I'm going to replace the 3 way vale on my open heating system. Hoping someone can advise. In the picture, to isolate the valve I am going to turn off 1, 2 & 3. However as you can see I can't turn anything off between the valve and the hot water tank. If I use a bung in the header tank, will...
  2. S

    Replacement for Armitage Shanks Tiffany 9776 cistern

    I have a cracked close coupled toilet cistern. It's an Armitage Shanks Tiffany 9776, which I believe has been discontinued. The water feed is on the bottom right hand side of the cistern. Would there be a cistern with which I could replace it?
  3. B

    Replacement Cistern flush valves

    My toilet flush valve is continually draining (the rubber seal has perished) . . . I'd be grateful if someone could give me a link to parts that will fit in there and replace the current valves?
  4. A

    URGENT External Pipe - what purpose and is replacement necessary?

    During November we have to replace a corroded cast soil pipe on the exterior wall of the 1st and 2nd floors of our 1930’s building. Fine. However, it also has a smaller diameter pipe running beside it up the full height. It appears out of the wall, level with the first floor toilet, runs up the...
  5. siricosm

    Boiler replacement in Norwich

    I need someone to replace my boiler, I am thinking to get an Intergas HRE 24 SB. Our current boiler (and old Ideal) is in the kitchen, and we would like to relocate it to the laundry room or loft, so a new gas line needs to be run. I would prefer someone local in Norwich that can also do the...
  6. G

    Polypipe Programmable Room Thermostat - PB PZP

    I've had a couple of these battery powered thermostats fail and currently looking at finding replacements but I'm fairly sure they are now superseded? Can anybody advise on other programmable battery powered units that could be used instead? I'm assuming the others may well start to fail in the...
  7. Z

    Enclosed mixer shower replacement

    Hi All. My Aqualisa Aquavalve enclosed mixer shower valve leaked and gave way and I am looking to replace. I am looking for recommendations what model would I replace it with and how would I replace it if I changed the model! I would like to change the type of model to a lever one. I have...
  8. D

    Ensuring water line is shutoff

    I’m wanting to replace the single handle cartridge on my basement shower since it no longer allows hot water (sink in same bathroom works fine). I have turn off the water main (at the sidewalk), cold water intake to water heater and opened up all other faucets in the house. However, the shower...
  9. B

    Ranco overheat stat replacement.

    Hi everyone. Pilot light extinction problem on an old Myson Economist has been traced to a faulty overheat limit stat. It's a Ranco LM5P8037 which is now obsolete. It's a 2A 30mv 110 degree stat with a coil inserted into a pocket on the flow outlet. Will any other Ranco limit stat with similar...
  10. P

    Mira 8 now discontinued. Is there a direct replacement?

    Is there a direct drop-in replacement for a Mira 8 exposed shower mixer valve? My father-in-law says it was fitted 30 years ago. Spares no longer available. The critical dimension is the gap between the nuts that attach to each side of the valve body. Has anyone done this replacement?
  11. B

    which gas combi replacement advice

    Hi everyone, Just a query about what size in KW gas combi boiler do I need for a top floor flat (3rd floor). I have a Vokera Easi heat plus (20kW) gas combi boiler and it does the job, the radiators never go as hot as the should for example there are ten dots on the heat dial but the radiators...
  12. S

    AS2000X stuck in comissioning mode after power cut. PCB replacement?

    Morning All, hoping you can help me out with some advice. I have a triton AS2000x manual power shower, we had a power cut last night after the power was switched back on around 20 minutes later I heard the shower running . It seems to be stuck in comissioning mode. So Ive turned off the power to...
  13. C

    Pumping over on vented system, despite cleaning, new pipework and ..

    … praying to the plumbing God, Bob Pictures and layout details attached, so be patient. 21 year old oil fired system in pretty good nick. I noticed some minor pumping over from the vent (occasional burst of water, and the odd dribble). Didn’t think much of it as I was about to replace the...
  14. J

    Advice on slot in replacement for shower unit?

    Hi all, I currently have one of these shower heads fitted in my bathroom : Milan Rectangular Rainfall Shower Head + Water Blade | Victorian Plumbing UK -...
  15. R

    Daryl/Kohler 204292 spline - or good replacement shower.

    My parents are having a great deal of trouble with their Daryl Hydra shower due to this little plastic part being broken. It's the temperature spline - part number 204292, now discontinued. Has anyone had any luck finding anything that works as an alternative/3D printing a part (or by...
  16. D

    Stopcock replacement

    Good afternoon fellow plumbers I’m new to this site, I’m just after some advice please. So I have a customer who needs his old stopcock replacing, it’s black pipe coming up into the stopcock and then 15mm after, the black pipe is actually screwed to the bottom of the stopcock, I assume the...
  17. PhilTilson

    URGENT Replacement Boiler Advice

    Grateful for any advice regarding this problem. Flat about to be let and main heat exchanger in Worcester Bosch Greenstar 24i Junior has failed! I can replace with identical model (I think!) but would prefer to use GC2000iW C if possible. Question is, can the 2000 fit directly onto the 24i...
  18. R

    Advice for replacement pool oil boiler

    I've a client with a rusty 20yr+ old Certikin 180 (44kw) oil pool boiler that needs changing. Certikins replacement looks like it is the exact same boiler. It has a riello r40 burner and non condensing 85% efficient boiler... Oftec say it wouldn't be compliant and would have to contact Building...
  19. pmacule

    Replacement pivot hinge for shower door

    Hi, The bottom pivot of the shower door has snapped, I've searched for a replacement, any ideas where I can get one? Thanks.
  20. O

    Ceramic Valve replacement search

    I need to replace 4 ¼ turn ceramic valves for a second hand kitchen tap set - two taps. The current ones are dripping. These are marked X17C, and have a threaded collar. I've been to two local reputable plumbers merchants with the old valve and the head and cover to assist in fitting. No-one has...
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