What is the best way to increase Dorsal Height and lengthen and create a defined tip?

There are a variety of methods to increase dorsal height: Solid cartilage grafts from the septum, ear or rib, bone grafts, diced cartilage wrapped in temporalis fascia, and synthetic implants. Each has advantages and disadvantages. The currently preferred method is with diced cartilage for the dorsum and solid cartilage grafts for the tip. Synthetic implants have a significant long term complication rate and are usually not favored by plastic surgeons with extensive experience in performing nasal procedures.Following the advice from a
surgeon on this or any other website who proposes to tell you exactly what to
do  without examining you, physically
feeling the tissue, assessing your desired outcome, taking a full medical
history, and discussing the pros and cons of the operative procedure would not
be in your best interest. I would suggest you find a plastic surgeon with
extensive nasal surgery experience who is certified by the American Board of
Plastic Surgery and ideally a member of the American Society for Aesthetic
Plastic Surgery (ASAPS) or a facial plastic surgeon (ENT) that you trust and are
comfortable with. You should discuss your concerns with that surgeon in person.Robert Singer, MD FACSLa
Jolla, California

The nasal bridge can be augmented using bone, cartilage, or a silicon implant.  I almost never perform this except in reconstructive cases or previous rhinoplasty.  I have never done this in a primary rhinoplasty.  Nasal bridge grafts are very difficult to get to look good.  It may sound like an appealing idea, but unless this is being done for reconstruction such as a trauma case, I would probably advise against it even without seeing photos.

        Cartilage grafting may be the best option, but there are a huge number of techniques to address any one issue.Kenneth Hughes, MDLos Angeles, CA