In Vitro Studies of a New Method of Flexor Tendon Repair

1985 ◽  
Vol 10 (2) ◽  
pp. 135-141
Author(s):  
ROBERT SAVAGE
Keyword(s):  
Tensile Strength ◽  
Blood Supply ◽  
Unsolved Problem ◽  
Flexor Tendon ◽  
Tendon Repair ◽  
Flexor Tendon Repair ◽  
Mechanical Factors ◽  
A New Technique ◽  
Physical Principles

The mechanical factors in tendon repair have been studied and physical principles applied to this unsolved problem. A new technique of tendon repair has been derived and tested in the laboratory. Compared to several well known techniques it has been shown to have three times the tensile strength and to allow one tenth the gap to form between the tendon ends under load. It has been designed not to constrict the blood supply of the tendon and the tests indicate that it will be strong enough to allow early active mobilisation even after inflammation has caused the tendon to soften.

Flexor Tendon Repair Using a Stainless Steel Internal Anchor

1998 ◽  
Vol 23 (1) ◽  
pp. 37-40 ◽  
Author(s):  
L. GORDON ◽  
M. TOLAR ◽  
K. T. VENKATESWARA RAO ◽  
R. O. RITCHIE ◽  
S. RABINOWITZ ◽  
...  
Keyword(s):  
Tensile Strength ◽  
Stainless Steel ◽  
Flexor Tendon ◽  
Tendon Repair ◽  
Flexor Digitorum Profundus ◽  
Flexor Tendon Repair ◽  
Active Flexion ◽  
Active Range Of Motion ◽  
Flexor Digitorum

We have developed a stainless steel internal tendon anchor that is used to strengthen a tendon repair. This study tested its use in vitro to produce a repair that can withstand the tensile strength demands of early active flexion. Fresh human cadaver flexor digitorum profundus tendons were harvested, divided, and then repaired using four different techniques: Kessler, Becker or Savage stitches, or the internal tendon anchor. The internal splint repairs demonstrated a 99–270% increase in mean maximal linear tensile strength and a 49–240% increase in mean ultimate tensile strength over the other repairs. It is hoped that this newly developed internal anchor will provide a repair that will be strong enough to allow immediate active range of motion.

The effect of flexor tendon repair bulk on tendon gliding during simulated active motion: An in vitro comparison of two-strand and six-strand techniques

2001 ◽  
Vol 26 (5) ◽  
pp. 833-840 ◽  
Author(s):  
David W. Sanders ◽  
Andrew D. Milne ◽  
James A. Johnson ◽  
Cynthia E. Dunning ◽  
Robert S. Richards ◽  
...  
Keyword(s):  
Flexor Tendon ◽  
Tendon Repair ◽  
Flexor Tendon Repair ◽  
Active Motion ◽  
In Vitro Comparison

Effect of suture knot location on tensile strength after flexor tendon repair

1996 ◽  
Vol 21 (6) ◽  
pp. 969-973 ◽  
Author(s):  
Donald L. Pruitt ◽  
Mitsuhiro Aoki ◽  
Paul R. Manske
Keyword(s):  
Tensile Strength ◽  
Flexor Tendon ◽  
Tendon Repair ◽  
Flexor Tendon Repair

scholarly journals Tensile Strength of Flexor Tendon Repair Using Barbed Suture Material in a Dynamic Ex Vivo Model

2016 ◽  
Vol 04 (01) ◽  
pp. 16-20 ◽  
Author(s):  
Philip Zeplin ◽  
M. Henle ◽  
R. Zahn ◽  
R. Meffert ◽  
K. Schmidt
Keyword(s):  
Tensile Strength ◽  
Suture Material ◽  
Flexor Tendon ◽  
Ex Vivo ◽  
Tendon Repair ◽  
Barbed Suture ◽  
Ex Vivo Model ◽  
Flexor Tendon Repair

Simplifying four-strand flexor tendon repair using double-stranded suture: a comparative ex vivo study on tensile strength and bulking

2012 ◽  
Vol 37 (2) ◽  
pp. 101-108 ◽  
Author(s):  
T. H. Low ◽  
T. S. Ahmad ◽  
E. S. Ng
Keyword(s):  
Tensile Strength ◽  
Flexor Tendon ◽  
Ex Vivo ◽  
Tendon Repair ◽  
Flexor Digitorum Profundus ◽  
Flexor Tendon Repair ◽  
Significant Difference ◽  
Load To Failure ◽  
Fresh Frozen ◽  
Flexor Digitorum

We have compared a simple four-strand flexor tendon repair, the single cross-stitch locked repair using a double-stranded suture (dsSCL) against two other four-strand repairs: the Pennington modified Kessler with double-stranded suture (dsPMK); and the cruciate cross-stitch locked repair with single-stranded suture (Modified Sandow). Thirty fresh frozen cadaveric flexor digitorum profundus tendons were transected and repaired with one of the core repair techniques using identical suture material and reinforced with identical peripheral sutures. Bulking at the repair site and tendon–suture junctions was measured. The tendons were subjected to linear load-to-failure testing. Results showed no significant difference in ultimate tensile strength between the Modified Sandow (36.8 N) and dsSCL (32.6 N) whereas the dsPMK was significantly weaker (26.8 N). There were no significant differences in 2 mm gap force, stiffness or bulk between the three repairs. We concluded that the simpler dsSCL repair is comparable to the modified Sandow repair in tensile strength, stiffness and bulking.

Primary Repair Of Flexor Tendons In The Hand Without Immobilisation – Preliminary Report

HAND ◽  
1978 ◽  
Vol os-10 (1) ◽  
pp. 37-47 ◽  
Author(s):  
Hilton Becker
Keyword(s):  
Blood Supply ◽  
Preliminary Report ◽  
Suture Material ◽  
Flexor Tendon ◽  
Primary Repair ◽  
Tendon Repair ◽  
Gap Formation ◽  
Flexor Tendon Repair ◽  
New Approach ◽  
Flexor Tendons

summary A new approach to the problem of flexor tendon repair within the fibro-osseous canal is presented. Using a technique of bevelling the tendon ends and suturing with a fine suture material, under magnification, a sufficiently strong junction is obtained, which enables immediate active mobilisation without strangulation of the blood supply. The junction can resist gap formation up to tensions of 4 Kg. It is postulated that under these conditions tendon nutrition is minimally interfered with, adhesions do not form, and the tendon heals by its own intrinsic healing ability.

Flexor tendon repair using a new suture technique: a comparative in vitro biomechanical study

2010 ◽  
Vol 37 (1) ◽  
pp. 79-84 ◽  
Author(s):  
M. Schädel-Höpfner ◽  
J. Windolf ◽  
T. T. Lögters ◽  
M. Hakimi ◽  
I. Celik
Keyword(s):  
Flexor Tendon ◽  
Tendon Repair ◽  
Suture Technique ◽  
Biomechanical Study ◽  
Flexor Tendon Repair

Intrinsic flexor-tendon repair. A morphological study in vitro.

1984 ◽  
Vol 66 (3) ◽  
pp. 385-396 ◽  
Author(s):  
P R Manske ◽  
R H Gelberman ◽  
J S Vande Berg ◽  
P A Lesker
Keyword(s):  
Morphological Study ◽  
Flexor Tendon ◽  
Tendon Repair ◽  
Flexor Tendon Repair
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