For an enlarged prostate - what is the best surgery to minimize erection problems and retrograde ejaculation?

Depends. The complications you mentioned are largely dependent on the experience of the urologist and the procedure selected. Potentially however, any thermal treatment of the prostate can damage the sphincter or the nerves that allow erection.
Retrograde ejaculati. Most of the drugs for prostate like Flomax (tamsulosin) are Alpha blockers and will cause ejaculate to go into bladder; other drugs like Proscar can have ejaculate and other sexual side effects; most if not all prostate surgeries will effect ejaculatipn in some way.

Related Questions

What prostate procedure or surgery will have the least amount of side effects of retrograde ejaculation, no semen, and subdued climax. I have bph.

BPH treatment. 59 y m with BPH & tamsulosin. Depending on the size & complications your urologist can give best option.Minimal invasive procedures are microwave, laser, needle ablation. Then turp, nerve sparing prostatectomy, incision prostate. The later two preserve erection & ejaculation. Turp is 90% done &5% retrograde ejaculation rate. Again size & complications determine the choice of procedure. Thanks. Read more...
BPH surgery. For benign prostatic enlargement, TURP has the highest rate. Tumt, tuna and laser ablation have somewhat lower incidence. Ejaculatory dysfunction is possible with any BPH surgical treatment though. Read more...

Is retrograde ejaculation an outcome of the evolve BPH laser surgery, or just a possible side effect? If so what are the chances? Of it happening?

See below. Retrograde ejaculation is a common side effect of all bladder outlet procedures designed to improve flow of urine that has been impaired by enlarged prostate. It is slightly less common in some of the newer procedures like laser and microwave therapy, but is still possible. Importantly, even man who experience this side effect have a normal sensation of orgasm, just little/no ejaculation. Read more...

Is there any treatment of retrograde ejaculation following prostate surgery?

Possibly. Medications do not help retrograde ejaculation if there has been permanent damage to the prostate if prostate surgery has resulted in damage to the muscles or nerves. Medications including antihistamines, decongestants, or tricyclic antidepressants may only work if there has been mild nerve damage caused by medical conditions including diabetes, multiple sclerosis, or mild spinal cord injury that. Read more...
Very difficult. No good treatments exist. While you urinate better, it is now easier for your ejaculate to go backwards rather than the normal way. Sometimes the prostate can regrow and help the problem to diminish. Read more...