The postoperative follow-up of 18 unilocated sacral pressure sores treated with modificated by authors bilateral V-Y advancement island gluteus maximus myocu- taneous flap plasty was performed. No early flap necrosis occurred. The complications observed were minor and not jeopardising. The authors consider V-Y plasty modificated technique to be safe and allow the adequate coverage of sacral defect but despite of it, decubitus ulcer recurrence of is not to be precluded. The late pressure sore recurrence rate in analyzed material came up 33% during 9-24 months postoperatively. 11 flaps presented the diminished pressure resistance of tissues and thus the patinets underwent special conservative multidisciplinary approach to preserve flaps. The choice of flap in authors' opinion is important as well as proper qualification, operative planning, pre- and postoperative care including rehabilitation. Authors performed the critical evaluation of musculocutaneous flaps in sacral pressure sores surgery.