Injections in joints,are they effecting as good or bad on you?

Suffering of deforming arthrosis a knee joints, on my 66 y.old, as very hurt a knee of left knee, as in move, steps feeling theirs cracking like, weakness joint, am interesting your opinion for doing injections, as effectively of theirs and remedies are using..
We asked this in Rheumatologist Potanin ,and he answered as moder joints damages by autoimmune kind are leading to stable remission, but in cartilages problems as osteoarthrisis today not fought, but injections are giving timely improves, and one good help is prosthesing, changer joint, but to check always as positives and negatives.Arthrosis is not inflammation, but metabolic disease,where are happening in bad metabolism, but acuting, inflammation happening in small injuries, fractures, fallen, where are hard walking you are, hurting joints, swelling joint, therefore corticosteroids helping you as kenalog 40, diprospan, depo medrol, as fast helping you, and prolong effecting, but in a few patients till two weeks or two months, but inflammation is non constant,thus not needing injections adding for one time/month, but they are also having side effects, as hypertension happening, sugar raised, but these are non contraindications to curing, as therefore on injecting day  and after in diabetes you are raising remedies for sugar  lowering, but hormones are having also bad effects,as protein splitting, as on a cartilage protein affecting, disease worsening, and cartilage splitting, thus till 5 injections/year are not doing, thus a cure will reflect a bad side effects. But we are used same curing on 1990 where are used for one time. month and problem decided for money, but later in progressing, they are talking a such disease process happening, but a true these are side effects reflected.And next injections are stopping disease process, these a hialuron acid remedies,as sinvix, sinocrom, visco plus, as theirs calling like a prosthesis for synovial liquid, as he influencing for cartilage spreading, feeding and in cartilages an own blood vessels are not having, but they are getting a feeding from a near bone or from a synovial liquid, and effect till year, not more, but a remedy note with marker will remove in a few weeks from a joint, as maybe restoring a normal metabolism, and cells cartilages feeding, stimulation theirs processes, therefore a giving right joint function, but in inflammation in cartilage injections are not doing, and usually doing three injections with intervals between theirs for week, and repeating course also possible, but not a more than at 6, within a half year. But injections are high prices having and alternative to theirs will joint protesing, and payments are big,as in injections, but a few patients asking for near injection doing, not in joint, this is not good, but,yes doing in synovial liquid inflamed, therefore doing injection of corticosteroids, or on any body place, where happening after tension injury.
And for adults,where are having requests, yes injections doing in knee damages, harder having in hip damages, where feeding is bad, and artery thin a feeding for joints hips, and in injection you can damage her, and patients Will feel a strong aches till necrosis of head hip joint, and saving leg a hard prosthesing , and just a doctors specialists in clinics are not risking doing this, therefore in hip joint do not enter with needle..