Does the Splint Affect Rhinoplasty Results?

Correcting the crooked nose always represents a Rhinoplasty challenge. Personally, I do think the splinting is an important part of the overall nasal procedure.
One could speculate that your surgeon wanted to counteract the nasal deviation with his splinting technique and convince the nose to heal in the desired direction... I would raise this question with your Rhinoplasty surgeon.

Nasal splints are used in the vast majority of rhinoplasty procedures. Splints are utilized to hold the nasal bones in proper position. They also help to decrease swelling in the post-operative period
                The management of nasal splints varies from patient to patient and depends upon the patient’s specific anatomic deformity. In some cases, nasal splints may not be necessary. In other cases where the nasal bridge is narrowed or when the nose is straightened, nasal splints may be an absolute necessity. Under these circumstances, premature removal of the splint may result in spread of the nasal bones or recurrent deviation of the nose. This can adversely impact the surgical result.

                It takes time for the nasal bones to heal following an infracture. For this reason, nasal splints are usually left in place for at least one week following rhinoplasty surgery. This allows time for resolution of swelling and bone healing.

                If you’re concerned about the management of your nasal splints, it’s important to contact your plastic surgeon. Your surgeon should be able to clarify the issue and provide you with appropriate direction. 

It is normal to have a nasal splint for a week after rhinoplasty. Sometimes it may look to be slightly crooked, however, the splint does not usually effect the overall outcome. It is usually placed for self protection of the patient and to help reduce swelling.

A nasal splint or cast is an important part of most rhinoplasties.  They are required when osteotomies (bone cuts) have been performed.  This helps to stabilize the bone in its new position.  We typically leave the splint in position for about 5 days.  It is taped in place and easily removed.  We do not use nasal packing which is what you hear about being so uncomfortable from those who have had rhinoplasty procedures.

When the splint is removed, you may see that the tip of the nose looks slightly more swollen than where the splint was placed.  This is because the splint has helped to reduce the edema (swelling) where it was applied.

There is also some value in terms of protection during the acute healing phase so that if the nose is accidently bumped, the splint may help to protect additional injury.

The external splint is an important part of preserving your surgical result. Most surgeons place surgical tape/steri-strips on the exterior of the nose.
This helps do two very important things:

protect the skin from the splint, and
most importantly, decrease the amount of swelling.

The tape puts mild pressure on the skin envelope and can help prevent a blood pocket (hematoma) from forming between the skin and the nasal framework. When a hematoma develops, the blood is eventually replaced by fibrous tissue (scar tissue) and can distort the nose or add volume to the tip.
On top of the surgical tape, surgeons will put an external splint made of aluminum, plaster, plastic, etc. The purpose of this splint is to protect the nose and hold the nasal bones in position if they were broken.
It is possible that the external splint can be put on crooked, even if the surgeon adequately corrected youcrooked nose. Just because the cast/splint itself isnt straight doesnt necessarily mean that your nose wont be.

The splint keeps swelling down and holds the fractured bones in place. It also protects the nose from trauma. Most rhinoplasty surgeons use them and I think wisely so.