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A Technique Utilizing GraftNet to Fill Graft Donor Sites in Bone-Patellar-Bone Anterior Cruciate Ligament Reconstruction.

ABSTRACT: Anterior knee pain and patella fracture are 2 potential complications of bone-patellar-bone autograft anterior cruciate ligament reconstruction. Techniques have been developed to minimize the risk of these complications, including filling the defects with autologous bone fragments and augmenting with biologic agents. We have developed a technique that uses a graft collection device to collect the autologous bone graft generated during surgery. This graft augments the larger bone graft derived from the bone plugs. This autologous augmentation provides a complete biologic strategy to potentially reduce the risk of anterior knee pain and potential patella fracture.

SUBMITTER: Mead RN

PROVIDER: S-EPMC6928353 | biostudies-literature |

REPOSITORIES: biostudies-literature

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Patellar Tendon Graft Anterior Cruciate Ligament Reconstruction Technique With Suture Tape Augmentation.

Project description:Suture tape augmentation for repair and in combination with reconstruction with grafts has been described for multiple procedures. To date, no description of a patellar tendon graft anterior cruciate ligament reconstruction with an augmented graft has been published. This Technical Note details a technique we developed to incorporate a cross-linked suture tape into a patellar tendon graft.

| S-EPMC6506723 | biostudies-literature

Bone-on-Bone Anatomic Patellar Tendon Graft Anterior Cruciate Ligament Reconstruction: A Reproducible Technique Combining Press-Fit and Extracortical Fixation.

Project description:Scientific interest in optimizing outcomes after anterior cruciate ligament (ACL) reconstruction is ongoing, and some recent developments have focused on graft shape as one of the most important factors of anatomic graft placement. The double-bundle or fanlike structure of the native ACL seems to more closely restore normal function and control of rotational stability of the knee with implant-free or press-fit techniques, creating a favorable situation in terms of direct graft-tunnel healing. The ACL reconstruction technique presented in this article enables safe, reproducible, and anatomic fixation of the patellar tendon autograft, providing the biological and biomechanical benefits of direct bony integration of the ribbonlike bone-patellar tendon-bone graft. Because press-fit fixation represents a technically challenging surgical procedure, the goal of the described technique is to enable direct bone-to-bone healing by using secondary extracortical femoral and tibial fixation without the need for a true press-fit situation. Safe and anatomic femoral tunnel drilling is achieved with an outside-in technique (retrograde drilling), hence providing advantages in the routine clinical setting in terms of applicability and time effort. To reduce donor-site morbidity caused by bone block harvesting, refilling of the harvest sites with autologous material is performed.

| S-EPMC7029172 | biostudies-literature

Anterior to Posterior Bone Plug Suture Tunnels Provide Optimal Biomechanics for Bone-Patellar Tendon-Bone Anterior Cruciate Ligament Graft.

Project description:PurposeTo evaluate different bone-patellar tendon-bone (BPTB) plug suture configurations for pull through strength, stiffness, and elongation at failure in a biomechanical model of suspensory fixation.MethodsForty nonpaired, fresh-frozen human cadaveric BPTB allografts with an average age of 65.6 years were tested. Tensile testing was performed with the use of a custom-designed fixture mounted in a dynamic tensile testing machine. A preload of 90 N was applied to the graft and held for 5 minutes. Following this, a tensile load-to-failure test was performed. The ultimate failure load, elongation at failure, and mode of failure were recorded, and the resulting load-elongation curve was documented.ResultsThe drill tunnel through the cortical surface (anterior to posterior) was found to be significantly stronger than the drill tunnel through the cancellous surface (medial to lateral). There were no significant differences found when comparing the strength of the suture augmentation through the tendon and the drill tunnel alone (P = .13 among cancellous groups, P = .09 among cortical groups). The cortical drill tunnel with suture augmentation through the tendon showed significantly greater elongation values (13.7 ± 3.2) at failure when compared with either the cancellous or cortical drill tunnel only test groups (P = .0003 compared with cancellous alone, P = .009 when compared with cortical alone). Conclusions: The BPTB suture configuration with an anterior to posterior-directed suture tunnel without a suture through tendon augmentation provides the optimal strength and stiffness while minimizing graft elongation after fixation in a biomechanical model. This configuration is best for preventing suture pull through and failure when passing sutures through the BPTB plug.Clinical relevanceThis study biomechanically evaluates the optimal suture configuration in the proximal bone plug for suspensory fixation in the setting of BPTB grafts.

| S-EPMC9402455 | biostudies-literature

Simplifying Anterior Cruciate Ligament Graft Bone Plug Reconstructions: The "U" Trough Technique.

Project description:This Technical Note discusses an anterior cruciate ligament graft preparation technique to simplify and ease graft visualization, insertion, and fixation. Our technique incorporates a 2-mm central trough in the bone plug of the graft to improve one's ability to efficiently identify and orient the anterior cruciate ligament graft during insertion, and ensure correct screw placement and fixation.

| S-EPMC5622206 | biostudies-literature

Anterior Cruciate Ligament Reconstruction With Bone-Patellar Tendon-Bone Graft Through a Rectangular Bone Tunnel Made With a Rectangular Retro-dilator: An Operative Technique.

Project description:Good clinical results have been reported with anatomic anterior cruciate ligament (ACL) reconstructions in which rectangular bone-patellar tendon-bone (BTB) grafts were fixed into rectangular bone tunnels made at anatomic ACL insertion sites of the femur and tibia (anatomic rectangular tunnel BTB ACL reconstruction). Notwithstanding these good results, some problems have remained unsolved, including procedural complexity and risk of damage to the femoral posterior tunnel wall, damage to nerves and blood vessels, and damage to cartilage. The purpose of this report is to present our technique of ACL reconstruction with BTB graft through a rectangular bone tunnel made with a rectangular retro-dilator. Our procedure may become a safe option for anatomic rectangular tunnel BTB ACL reconstruction because of the following advantages: (1) bone tunnels can be created more safely and accurately than in methods using transtibial and far medial portals, (2) the bone tunnel preparation procedure is less invasive than the standard outside-in method, (3) technical failure-related risks are lower because the guidewire is inserted only once, and (4) the operation time is shorter because the method is a single-bundle procedure.

| S-EPMC5621523 | biostudies-literature

Bone-Tendon-Autograft Anterior Cruciate Ligament Reconstruction: A New Anterior Cruciate Ligament Graft Option.

Project description:The bone-tendon-bone (BTB) autograft is widely used for anterior cruciate ligament (ACL) reconstruction. However, the primary disadvantages of this technique include postoperative kneeling pain, the risk of perioperative patellar fracture, and graft-tunnel mismatch. Therefore, a single bone plug technique for ACL reconstructions was developed to mitigate the disadvantages of the BTB technique. To differentiate this graft, we have coined the term BTA, for bone-tendon-autograft. The middle third of the patellar tendon is used with a typical width of 10 to 11 mm. A standard tibial tubercle bone plug is harvested. The length of the patellar tendon and graft construct is then measured. If the tendon is >45 mm and the construct at least 70 mm, then we proceed with the BTA technique. At the inferior pole of the patella, electrocautery is used to harvest the tendon from the patella. The advantages of this technique include faster graft harvest and preparation. Obviating the patellar bone plug harvest should eliminate the risk of perioperative patellar fracture and theoretically will mitigate donor site morbidity and kneeling pain, 2 of the most commonly cited complications of the use of BTB autografts for ACL reconstruction. In conclusion, the BTA technique is a reliable technique for ACL reconstruction.

| S-EPMC7587499 | biostudies-literature

Anterior Cruciate Ligament Reconstruction Basics: Bone-Patellar Tendon-Bone Autograft Harvest.

Project description:Anterior cruciate ligament reconstruction with bone-patellar tendon-bone autograft has long been considered the graft preference for young, active patients with anterior cruciate ligament injuries. The central-third of the native patellar tendon is a reliable graft and is the preferred option for competitive athletes given its excellent track record with high return-to-play rates and low failure rates. Disadvantages to using this graft include donor site morbidity and associated postoperative anterior knee pain, the risk of patellar fracture or patellar tendon tear, and the potential for graft-construct mismatch. In this Technical Note, we describe our preferred technique for bone-patellar tendon-bone autograft harvest and preparation for anterior cruciate ligament reconstruction.

| S-EPMC5621981 | biostudies-literature

Hamstring Braid Graft Technique for Anterior Cruciate Ligament Reconstruction.

Project description:Hamstring autograft is one of the most used grafts for anterior cruciate ligament (ACL) reconstruction, although there are several graft preparation techniques. It is extremely difficult to mimic the biomechanical properties of the native ACL; thus, it is important to achieve a proper graft configuration, diameter, and length. To avoid reruptures, an optimal and reproducible hamstring autograft is desired. Hamstring autograft has been traditionally devalued when compared with other options such as bone-patellar tendon-bone autograft. The purpose of this Technical Note is to describe in detail a hamstring braid graft configuration that could potentially overcome the past disadvantages of ACL reconstruction.

| S-EPMC6823734 | biostudies-literature

All-inside anterior cruciate ligament graft link: graft preparation technique.

Project description:The anatomic single-bundle, all-inside anterior cruciate ligament graft-link technique requires meticulous graft preparation. The graft choice is no-incision allograft or gracilis-sparing, posterior semitendinosus autograft. The graft is linked, like a chain, to femoral and tibial TightRope cortical suspensory fixation devices with adjustable-length graft loops (Arthrex, Naples, FL) in the following manner: the graft is quadrupled, and the free ends are first whip-stitched and then sutured with a buried-knot technique, 4 times through each strand in a loop. The graft is placed on a tensioning station under approximately 20 lb of tension during arthroscopic preparation of the knee and then removed from the tensioner and inserted into all-inside femoral and tibial sockets through the anteromedial arthroscopic portal.

| S-EPMC3678625 | biostudies-other

Articulated Bone Block for Posterior Cruciate Ligament Reconstruction Using Bone-Patellar Tendon-Bone Autograft: Surgical Technique to Facilitate Graft Passage.

Project description:Posterior cruciate ligament reconstruction using the transtibial technique provides successful clinical outcomes. However, a bone-patellar tendon-bone (BTB) autograft with the transtibial technique has not been used by some surgeons because of concerns with graft passage from the tibial to the femoral tunnels (sharp turn) that can damage graft fibers. In the present surgical technique, an arthroscopic, transtibial, single-bundle technique for posterior cruciate ligament reconstruction using the BTB autograft with an easy and effective technical tip to facilitate graft passage is presented. Once the BTB is harvested, the femoral bone block is divided into 2 equal-sized blocks providing an articulated structure while preserving the tendon component. This facilitates the passage of the BTB tendon once it is entered in the posterior tibia and the graft has to make a sharp turn to reach the femoral tunnel. This easy and effective technique tip may avoid graft damage during the sharp turn, while maintaining all the advantages of a BTB autograft (bone-to-bone healing, own tissue with fast incorporation, and strong fixation and stability).

| S-EPMC5850889 | biostudies-literature

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