Does lipo of neck and jawline always use microcannulas?

The term micro cannula is a marketing term.
There is no definition of a micro Cannula. Plastic surgeons used to correct size instrument for the job at hand. Chin and neck work is fairly delicate so smaller cannula‘s are more appropriate.
For this type of work at 2 mm cannula is appropriate
There is no definition of a micro cannula. It is simply a sales gimmick.
For quality Liposuction result, there are only two variables that matter. The first is the patient’s candidacy for the procedure in the first place, and the second is the skill and experience of the provider.
The name of the equipment used is more or less irrelevant
Understanding your own candidacy for the procedure, and selecting a sufficiently talented provider of the hallmarks of consistent quality outcomes.
This is the best done by having multiple in person, consultations with local plastic surgeons in your community.
During each consultation, ask each provider to open up their portfolio and show you their entire collection of before, and after pictures of the previous patient who has similar facial characteristics to your own. An experienced plastic surgeon should have no difficulty showing you the before and after pictures of at least 15 previous patients. Being shown a handful, pre-selected images, representing the best results of a providers career is insufficient to get a clear understanding of what average results look like in the hands of each provider or how many of these procedures actually performed. Being board-certified and plastic surgery with years of experience, and an overall good reputation does not mean somebody has mastered any one single procedure. Delivering consistent quality liposuction results is far more difficult than most people realize. The number of plastic surgeons have truly mastered is this procedure are in a small minority. There’s no correct number of consultations needed to find the right provider. I suggest patients consider having at least five in person consultations before choosing a provider for permanent irreversible body contouring procedures that can potentially leave people disfigured. I cannot emphasize enough the importance of provider selection when it comes to Liposuction.
Not everybody seeking Liposuction is a good candidate for this procedure.
A patient who is an excellent candidate for Liposuction, at the potential of having excellent results if the procedure is done by a skilled and experienced provider. Somebody who is an excellent candidate can also be left disfigured if the procedure is done poorly. An individual who is not a good candidate, for Liposuction does not have the potential of having quality outcomes, regardless of who does the procedure.
A quality consultation should make it very clear. What type of candidate you are for the procedure and exactly what type of results you could expect when done by sufficiently experienced providers there is no guesswork involved.
When, in doubt, slow down and schedule more consultations.
Best,
Mats Hagstrom, MD