Universität zu Köln

Dargel, Jens, Boomkamp, Evelyn, Wegmann, Kilian, Eysel, Peer, Mueller, Lars Peter and Hackl, Michael ORCID: 0000-0002-6183-5621 (2017). Reconstruction of the lateral ulnar collateral ligament of the elbow: a comparative biomechanical study. Knee Surg. Sports Traumatol. Arthrosc., 25 (3). S. 943 - 949. NEW YORK: SPRINGER. ISSN 1433-7347

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Abstract

Posterolateral rotatory instability (PLRI) of the elbow is the result of an insufficient lateral collateral ligament complex (LCLC). Single-bundle reconstruction of the lateral ulnar collateral ligament (LUCL) represents the standard treatment method for chronic PLRI. However, cases of recurrent instability after LUCL reconstruction have been reported. The dual-reconstruction procedure has been described to anatomically restore the LUCL as well as the radial collateral ligament (RCL). It was hypothesized that anatomic reconstruction of the LCLC provides increased stability compared with the conventional technique. Posterolateral rotatory displacement was assessed in eight fresh-frozen human elbows with a maximum load of 20 N. Data were obtained in 0A degrees, 30A degrees, 60A degrees, 90A degrees and 120A degrees of elbow flexion for native specimens, dissected LCLC and three reconstruction methods: (1) single-bundle LUCL reconstruction, (2) single-bundle LUCL reconstruction with RCL augmentation, (3) dual-reconstruction technique (LUCL + RCL). All reconstruction methods were able to sufficiently restore posterolateral rotatory stability of the elbow over the full range of motion. There were no significant differences between the intact specimens and either reconstruction method. Dissection of the LCLC significantly increased PLRI compared with the other groups (p < 0.001). The less invasive dual-reconstruction technique is confirmed as a safe procedure for anatomic LCLC reconstruction. Primary stability is equal, yet not superior to conventional LUCL reconstruction. Hence, this biomechanical study does not confirm the hypothesis that more anatomic reconstruction techniques could reduce the risk of recurrent instability when compared to conventional LUCL reconstruction.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Dargel, Jens UNSPECIFIED UNSPECIFIED UNSPECIFIED Boomkamp, Evelyn UNSPECIFIED UNSPECIFIED UNSPECIFIED Wegmann, Kilian UNSPECIFIED UNSPECIFIED UNSPECIFIED Eysel, Peer UNSPECIFIED UNSPECIFIED UNSPECIFIED Mueller, Lars Peter UNSPECIFIED UNSPECIFIED UNSPECIFIED Hackl, Michael UNSPECIFIED orcid.org/0000-0002-6183-5621 UNSPECIFIED
URN:	urn:nbn:de:hbz:38-239227
DOI:	10.1007/s00167-015-3627-3
Journal or Publication Title:	Knee Surg. Sports Traumatol. Arthrosc.
Volume:	25
Number:	3
Page Range:	S. 943 - 949
Date:	2017
Publisher:	SPRINGER
Place of Publication:	NEW YORK
ISSN:	1433-7347
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language POSTEROLATERAL ROTATORY INSTABILITY; INTERFERENCE SCREW; TRICEPS TENDON; JOINT; STABILIZERS; FIXATION; OUTCOMES; ANATOMY; COMPLEX Multiple languages Orthopedics; Sport Sciences; Surgery Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/23922