Universität zu Köln

Sauerwald, A., Langer, L., Ratiu, D., Prescher, A., Scaal, M., Noe, G. K., Wegmann, K., Bulian, D. R. and Eichler, C. (2019). Laparoscopic pectopexy: a follow-up cyclic biomechanical analysis determining time to functional stability. Arch. Gynecol. Obstet., 299 (5). S. 1337 - 1344. HEIDELBERG: SPRINGER HEIDELBERG. ISSN 1432-0711

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Abstract

IntroductionPectopexy, a laparoscopic method for prolapse surgery, showed promising results in previous transient testing by this group. It was shown that a single suture, yielding an ultimate load of 35N, was equivalent to continuous suturing. This was demonstrated in an in vitro cadaver study. This transient data were used to establish an elastic stress-strain envelope. It was now possible to proceed to dynamic in vitro analysis of this surgical method to establish time to functional stability.MethodsCyclic testing of this fixation method was performed on human female embalmed cadaver (cohort 1) and fresh, non-embalmed cadaver (cohort 2) pelvises. The testing envelope was 5-25N at a speed of 1mm/s. 100 load regulated cycles were applied.Results100 cycles were completed with each model; no overall system failure occurred. Steady state, i.e., functional stability was reached after 14.5 (2.9) cycles for the embalmed group and after 19.1 (+/- 7.2) cycles for the non-embalmed group. This difference was statistically significant p=0.00025.Conclusion p id=Par4 This trial showed in an in vitro cyclic testing of the pectopexy method that functional stability may be achieved after no more than 19.1 cycles of load exposure. When remaining within the established load envelope of below 25N, patients do not need to fear global fixation failure. Testing did demonstrate differences in non-embalmed and embalmed cadaver testing. Embalmed cadaver testing tends to underestimate time to steady state by 26.3%.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Sauerwald, A. UNSPECIFIED UNSPECIFIED UNSPECIFIED Langer, L. UNSPECIFIED UNSPECIFIED UNSPECIFIED Ratiu, D. UNSPECIFIED UNSPECIFIED UNSPECIFIED Prescher, A. UNSPECIFIED UNSPECIFIED UNSPECIFIED Scaal, M. UNSPECIFIED UNSPECIFIED UNSPECIFIED Noe, G. K. UNSPECIFIED UNSPECIFIED UNSPECIFIED Wegmann, K. UNSPECIFIED UNSPECIFIED UNSPECIFIED Bulian, D. R. UNSPECIFIED UNSPECIFIED UNSPECIFIED Eichler, C. UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-149400
DOI:	10.1007/s00404-019-05117-9
Journal or Publication Title:	Arch. Gynecol. Obstet.
Volume:	299
Number:	5
Page Range:	S. 1337 - 1344
Date:	2019
Publisher:	SPRINGER HEIDELBERG
Place of Publication:	HEIDELBERG
ISSN:	1432-0711
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language FIXED-ANGLE PLATE; INITIAL-EXPERIENCE; PATELLA FRACTURES; SINGLE-CENTER; SACROCOLPOPEXY; PROLAPSE; FIXATION; SURGERY; MESH Multiple languages Obstetrics & Gynecology Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/14940