The Effect of Mitek Anchor Insertion Angle to Attachment of FDP Avulsion Injuries

2006 ◽  
Vol 31 (3) ◽  
pp. 292-295 ◽  
Author(s):  
F. B. SCHREUDER ◽  
P. J. SCOUGALL ◽  
E. PUCHERT ◽  
F. VIZESI ◽  
W. R. WALSH
Keyword(s):  
Nail Plate ◽  
Biomechanical Study ◽  
Flexor Digitorum Profundus ◽  
Suture Anchors ◽  
Insertion Angle ◽  
Human Cadavers ◽  
Potential Risks ◽  
Flexor Digitorum

Flexor digitorum profundus (FDP) tendon avulsions, although uncommon, are not infrequent injuries. A widely accepted method of treating Type 1 FDP avulsions is a pullout suture tied over a button on the nail plate. The external dorsal button is often a source of inconvenience for the patient. Potential risks associated with button use include nail plate deformities, nail fold necrosis and infections tracking along the sutures. The use of small suture anchors provides a satisfactory alternative, because buried fixation avoids these potential complications. This in vitro, biomechanical study examined the influence of the anchor orientation on the properties of the repaired FDP tendon using human cadavers.

Comparison of a multifilament stainless steel suture with FiberWire for flexor tendon repairs — an in vitro biomechanical study

2012 ◽  
Vol 38 (4) ◽  
pp. 418-423 ◽  
Author(s):  
E. McDonald ◽  
J. A. Gordon ◽  
J. M. Buckley ◽  
L. Gordon
Keyword(s):  
Mechanical Properties ◽  
Stainless Steel ◽  
Ultimate Load ◽  
Flexor Tendon ◽  
Biomechanical Study ◽  
Flexor Digitorum Profundus ◽  
Human Cadaver ◽  
Mode Of Failure ◽  
Flexor Digitorum

Our goal was to investigate and compare the mechanical properties of multifilament stainless steel suture (MFSS) and polyethylene multi-filament core FiberWire in flexor tendon repairs. Flexor digitorum profundus tendons were repaired in human cadaver hands with either a 4-strand cruciate cross-lock repair or 6-strand modified Savage repair using 4-0 and 3-0 multifilament stainless steel or FiberWire. The multifilament stainless steel repairs were as strong as those performed with FiberWire in terms of ultimate load and load at 2 mm gap. This study suggests that MFSS provides as strong a repair as FiberWire. The mode of failure of the MFSS occurred by the suture pulling through the tendon, which suggests an advantage in terms of suture strength.

An In vitro Study Comparing the Use of Suture Anchors and Drill Hole Fixation for Flexor Digitorum Longus Transfer to the Navicular

2006 ◽  
Vol 27 (5) ◽  
pp. 363-366 ◽  
Author(s):  
Raymond J. Sullivan ◽  
Heather A. Gladwell ◽  
Michael S. Aronow ◽  
Michael D. Nowak
Keyword(s):  
In Vitro Study ◽  
Drill Hole ◽  
Vitro Study ◽  
Suture Anchors ◽  
Flexor Digitorum Longus ◽  
Flexor Digitorum

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.

scholarly journals The effects of growth and differentiation factor 5 on bone marrow stromal cell transplants in an in vitro tendon healing model

2011 ◽  
Vol 36 (4) ◽  
pp. 271-279 ◽  
Author(s):  
M. Hayashi ◽  
C. Zhao ◽  
K.-N. An ◽  
P. C. Amadio
Keyword(s):  
Bone Marrow ◽  
Collagen Gel ◽  
Tendon Healing ◽  
Culture Conditions ◽  
Flexor Digitorum Profundus ◽  
Maximal Strength ◽  
Differentiation Factor ◽  
Cell Transplants ◽  
Flexor Digitorum

The effects of growth differentiation factor-5 (GDF-5) and bone marrow stromal cells (BMSCs) on tendon healing were investigated under in vitro tissue culture conditions. BMSCs and GDF-5 placed in a collagen gel were interpositioned between the cut ends of dog flexor digitorum profundus tendons. The tendons were randomly assigned into four groups: 1) repaired tendon without gel; 2) repaired tendon with BMSC-seeded gel; 3) repaired tendon with GDF-5 gel without cells; and 4) repaired tendon with GDF-5 treated BMSC-seeded gel. At 2 and 4 weeks, the maximal strength of repaired tendons with GDF-5 treated BMSCs-seeded gel was significantly higher than in tendons without gel interposition. However, neither BMSCs nor GDF-5 alone significantly increased the maximal strength of healing tendons at 2 or 4 weeks. These results suggest that the combination of BMSCs and GDF-5 accelerates tendon healing, but either BMSCs or GDF-5 alone are not effective in this model.

Biomechanical investigation of ‘figure of 8’ flexor tendon repair techniques

2016 ◽  
Vol 41 (8) ◽  
pp. 815-821 ◽  
Author(s):  
A. K. Agrawal ◽  
I. S. Mat Jais ◽  
E. M. Chew ◽  
A. K. T. Yam ◽  
S. C. Tay
Keyword(s):  
Tendon Repair ◽  
Biomechanical Study ◽  
Flexor Digitorum Profundus ◽  
Modified Technique ◽  
Flexor Tendon Repair ◽  
Group 4 ◽  
Biomechanical Investigation ◽  
Active Mobilization ◽  
Flexor Digitorum ◽  
Repair Techniques

This biomechanical study compared the original Al-Qattan repair with other modifications postulated to reduce bulk and friction, thereby potentially improving outcome. A total of 32 cadaveric digits with intact flexor apparatus were used. In each digit, the flexor digitorum profundus and flexor digitorum superficialis tendons were cut cleanly in Zone 2. We tested Al-Qattan’s technique along with three modifications using stronger suture material and varying the number of strands across the repair site. Of the four repair techniques, the modified Al-Qattan’s technique using two ‘figure of 8’ 4-0 Fiberwire core sutures (Group 4) had the best balance of ultimate tensile strength (50.9 N), 2 mm gapping force (38 N) and friction. The modified technique provided a stronger repair for early active mobilization and has less friction than the originally described repair.

Supplementary Core Sutures Increase Resistance to Gapping for Flexor Digitorum Profundus Tendon to Bone Surface Repair – An in vitro Biomechanical Analysis

2005 ◽  
Vol 30 (3) ◽  
pp. 288-293 ◽  
Author(s):  
N. KUSANO ◽  
M. A. ZAEGEL ◽  
J. D. PLACZEK ◽  
R. H. GELBERMAN ◽  
M. J. SILVA
Keyword(s):  
Biomechanical Analysis ◽  
Flexor Digitorum Profundus ◽  
Gap Formation ◽  
Bone Anchor ◽  
Anchor Group ◽  
Insertion Sites ◽  
Flexor Digitorum ◽  
Flexor Digitorum Profundus Tendon ◽  
Repair Techniques

We evaluated the effects of two types of supplementary core sutures on the tensile properties and resistance to gap formation of flexor digitorum profundus (FDP) tendon-bone repairs. Forty-five human cadaver FDP tendons were sharply released from their insertion sites and repaired to bone utilizing one of three repair techniques: four-strand modified Becker core suture (Becker only), modified Becker plus a figure-of-eight supplementary core suture (Becker plus figure-of-eight), and modified Becker plus a supplementary core suture using a bone anchor (Becker plus anchor). Ultimate (maximum) force did not differ between repair groups. However, addition of a supplementary suture significantly increased repair-site stiffness and the 1, 2 and 3 mm gap forces, while decreasing the gap at 20 N compared to the Becker only suture ( P<0.05). The only difference between the two supplementary suture groups was that the Becker plus anchor group had increased stiffness compared to the Becker plus figure-of-eight group. In conclusion, a supplementary figure-of-eight suture and a supplementary suture using a bone anchor provide enhanced resistance to gap formation for FDP tendon–bone repairs.

Sign in / Sign up

Export Citation Format

Share Document