A surgical instrument for treating female pelvic prolapse comprising a mesh sling for implanting into the pelvis of a female, which provides support to the urethra, the anterior vaginal wall, and the posterior vaginal wall with the sling defining a tissue-anchoring segment attached to opposite ends of the mesh sling. The mesh sling is surgically positioned using a tissue anchor applier instrument. The tissue anchor segment is positioned to attach to durable fascia that is located anatomically to support the sling. The durable fascia anchored vaginal wall support sling is positioned to provide support to the urethra for surgical management of female urinary incontinence, support to the anterior vaginal wall for surgical management of female cystocele, and support to the posterior vaginal wall for surgical management of female rectocele.