Clinical Application of the I-LOC Angle-Stable Interlocking Nail in 100 Traumatic Fractures of the Humerus, Femur and Tibia

Fauron, A.; Déjardin, Loïc M.; Phillips, Rachel R.; Gazzola, Krista M.; Perry, Karen L

doi:10.1055/s-0038-1660861

Cited by 6 publications

(13 citation statements)

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“…In small animals, long‐bone osteosynthesis with an AS‐ILN has been associated with excellent clinical outcomes and low complication rates . Unlike eccentrically applied plates, the ILN intramedullary location shields the implant from large bending moments.…”

Section: Discussionmentioning

confidence: 99%

“…Should biomechanical challenges be overcome and clinical outcome improved by using alternative fixation methods, surgical treatment in valuable animals might be considered a viable option. Although interlocking nail (ILN) stabilization has been successful in small animals, to the best of the authors' knowledge the clinical use of an angle‐stable ILN (AS‐ILN) for long‐bone fixation in production animals has yet to be described. This report details the successful treatment and clinical outcome of 2 tibial fractures in calves by using the I‐Loc (Biomedtrix, Whippany, New Jersey) intramedullary fixator.…”

Section: Introductionmentioning

confidence: 99%

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Tibial fracture repair with angle‐stable interlocking nailing in 2 calves

2019

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Objective: To report tibial fracture repairs with I-Loc angle-stable interlocking nails (AS-ILN) in 2 calves. Study design: Clinical case reports. Animals: One 5-day-old Holstein calf and one 3-month-old beefalo calf. Methods: In a 50-kg Holstein calf, a proximal juxtametaphyseal comminuted tibial fracture with tibial tuberosity slab fracture was repaired with an 8-160-mm I-Loc nail and 2 cortical lag screws. In an 89-kg beefalo calf, a long oblique middiaphyseal tibial fracture was repaired with an 8-185-mm I-Loc nail and 5 double loop cerclage wires. In each case, an I-Loc AS-ILN was selected because unique biomechanical challenges precluded treatment with traditional osteosynthesis methods, such as external coaptation or plate fixation. Results: No complications were diagnosed, and clinical union was documented 4 weeks after surgery in both cases. Axial growth continued in both calves, with no evidence of angular limb deformity at 7-and 6-month follow-up. Conclusion: This is the first report describing the use of the I-Loc nail in a bovine species. This application led to uncomplicated healing of tibial fractures and continued growth in both young calves described here. Clinical significance: Interlocking nailing may provide an effective and safe alternative for osteosynthesis of tibial fractures in young calves. Insertion of the AS-ILN across the center of the proximal tibial physis of a rapidly growing calf does not seem to alter its growth potential.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Tibial fracture repair with angle‐stable interlocking nailing in 2 calves

2019

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“…[8][9][10][11] Alternatively, the use of interlocking nails (ILN) may offer a method of improving outcomes while still adhering to biological osteosynthesis principles. [12][13][14][15] As intramedullary devices, ILN provide several advantages compared with other modes of fixation. First, ILN preserve the periosteal blood supply, which is crucial to fracture healing.…”

Section: Introductionmentioning

confidence: 99%

“…To circumvent these limitations, the I-Loc, a novel angle-stable ILN (AS-ILN; BioMedtrix, Whippany, New Jersey) was devised. 20 The large I-Loc nails (6, 7, or 8 mm in diameter) have been evaluated experimentally [20][21][22] and clinically in 100 trauma cases 13 in which excellent results were reported, including in more challenging epimetaphyseal fractures. 13 Recently, a smaller I-Loc system (nails 3, 4, and 5 mm in diameter) suitable for feline use became available and was mechanically assessed with favorable results.…”

Section: Introductionmentioning

confidence: 99%

Clinical application of the small I‐Loc interlocking nail in 30 feline fractures: A prospective study

2021

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Objective: To describe medium-term functional outcome after nail osteosynthesis in feline traumatology and report clinically relevant recommendations for I-Loc angle-stable interlocking nail use in cats. Study design: Prospective clinical study. Sample population: Client-owned cats (n = 29). Methods: Consecutive cases with femoral, tibial, or humeral fractures were included. Outcome measures included fracture and surgical procedure description, limb alignment, nail size vs body weight (BW), percentage of nail medullary canal (MC) fill, time to limb function at clinical union (CU), and complications. Descriptive statistics were reported and compared with historical data. Results: Bone distribution was 53.3% femora, 30% tibiae, and 16.7% humeri. There were six epimetaphyseal and 24 diaphyseal fractures. Overall, 67% of fractures were comminuted. Open reduction and minimally invasive techniques were used in 73% and 27% of cases, respectively. Seventeen I-Loc 3 (cat mean BW 4.4 ± 2.2 kg) and 13 I-Loc 4 (cat mean BW 5.2 ± 1.2 kg) nails were placed with mean MC fill of ≤50%. Average time to CU was 7.2 weeks. At CU, lameness had resolved or was mild in every cat, and all cats ultimately regained full limb function. No major complications were encountered. Conclusion: Because of improved CU times, excellent functional outcomes, and low complication rate, our results provide evidence that I-Loc nails are safe and effective for feline traumatology. Clinical significance: The I-Loc may be advantageous for fixation of epimetaphyseal fractures. Because of feline bone specific dimensional constraints, I-Loc 3 is likely appropriate for all feline humeri and most tibiae, while I-Loc 4 is well sized for feline femora.

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“…As an alternative to bone plates, interlocking nails (ILN) have been used successfully in veterinary medicine. [15][16][17][18] Currently, two angle-stable ILN (AS-ILN) developed specifically for use in feline patients are commercially available, each with a different locking mechanism design (►Fig. 1).…”

Section: Introductionmentioning

confidence: 99%

Evaluation of a Feline Bone Surrogate and In Vitro Mechanical Comparison of Small Interlocking Nail Systems in Mediolateral Bending

Marturello

Pfeil

Déjardin

2020

Vet Comp Orthop Traumatol

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Objective The aim of this study was to (1) evaluate bending structural properties of a machined short fibre epoxy (SFE) feline bone surrogate (FBS), (2) compare the bending behaviour of small angle-stable interlocking nails (I-Loc; Targon) and locking compression plates (LCP) and (3) evaluate the effect of implant removal on FBS bending strength. Methods Part 1: Feline cadaveric femurs (n = 10) and FBS (n = 4) underwent cyclic four-point bending and load to failure. Part 2: Fracture gap FBS constructs (n = 4/group) were stabilized in a bridging fashion with either I-Loc 3 and 4, Targon 2.5 and 3.0, LCP 2.0 and 2.4, then cyclically bent. Part 3: Intact FBS with pilot holes, simulating explantation, (n = 4/group) underwent destructive bending tests. Bending compliance, angular deformation and failure moment (FM) were statistically compared (p < 0.05). Results Native bone and FBS were similar for all outcome measures (p > 0.05). The smallest and largest bending compliance and angular deformation were seen in the I-Loc 4 and LCP 2.0 respectively (p < 0.05). While explanted Targon FBS had the lowest FM (p < 0.05), I-Loc and LCP constructs FM were not different (p > 0.05). Conclusion The similar bending properties of short fibre epoxy made FBS and native feline femurs suggest that this model could be used for mechanical testing of implants designed for feline long bone osteosynthesis. The I-Loc constructs smaller angular deformation which also suggests that these implants represent a valid alternative to size-matched Targon and LCP for feline fracture osteosynthesis. The significantly lower FM of explanted Targon may increase the risk of secondary fracture following implant removal.

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Clinical Application of the I-LOC Angle-Stable Interlocking Nail in 100 Traumatic Fractures of the Humerus, Femur and Tibia

Cited by 6 publications

References 0 publications

Tibial fracture repair with angle‐stable interlocking nailing in 2 calves

Tibial fracture repair with angle‐stable interlocking nailing in 2 calves

Clinical application of the small I‐Loc interlocking nail in 30 feline fractures: A prospective study

Evaluation of a Feline Bone Surrogate and In Vitro Mechanical Comparison of Small Interlocking Nail Systems in Mediolateral Bending

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