Ventro rectopexy/Intussusception

Hello,
I am new to forum.

History
2004
Low back pain on waking, some degeneration of spinal joints.
Pelvic tumors found 2004, adjacent to sciatic nerve (was told to monitor as biopsy too near nerve)
They appear to have shown stability however there is lower sacral nerve involvement which appears to be contributing to this global prolapse.
I have a large posterior cystocele and womb laying low.
Normal bladder pressures no leakage of urine.
I have internal rectal prolapse (intussusception) mid grade.

The above has left me with:

1. Since 2004. Early morning low back pain on waking chronic L5/S1 region.
This back pain eases when up and mobile.
2. Since 2010 disturbance in bowel/anal canal whilst sleeping. (a pushing sensation which led to chronic anal pain)

3. Early morning faecal urgency. Some incomplete evacuation.
Continued wiping use of small irrigation system, which did not help after using.
4. This anal pain early morning led to a sitting pain at first mild then over some years constant anal deep pain when sitting.

The condition leaves me exhausted as I have approximately 5-6 hrs sleep before the low back pain and anal pain kicks in.
Mobile and walking the pain lessons considerably and the reason I have managed to keep going.

Hysterectomy and anterior repair will hasten the internal rectal prolapse (intussusception)
Few doctors are skilled at Ventral Rectopexy UK.
The surgery was offered with plastic mesh.
A dissolvabale mesh is being used but it is early days as there are no long term outcome reports.;
I was told most mesh surgerires that brought about the past complications were vaginal mesh surgeries.
However the rectopexy meshes are also causing some problems.
Plastic too tight, and the mesh instead of helping constipation appears to be worsening the constipation. The surgery appears to be put somewhat on hold for internal rectal prolapse in the UK.
However continuing in the private sector.
Has anyone had a successful outcome with Ventral Rectopexy surgery?