scholarly journals Humeral fracture repair using a robust fixation in an adult Giant Anteater (Myrmecophaga tridactyla): case report

2021 ◽  
Vol 73 (3) ◽  
pp. 647-652
Author(s):  
B.W. Minto ◽  
T.V. Magalhães ◽  
D.V.F. Lucena ◽  
I.M. Soriano ◽  
G.H.F. Barranco ◽  
...  
Keyword(s):  
Mechanical Load ◽  
Humeral Fracture ◽  
Locking Compression Plate ◽  
Fracture Repair ◽  
Adult Individual ◽  
Early Return ◽  
Thoracic Limb ◽  
Interfragmentary Movement ◽  
Compression Plate ◽  
Fracture Consolidation

ABSTRACT The treatment of fractures from the thoracic limb in giant anteaters is extremely challenging. Unfamiliar and peculiar anatomical characteristics, robust musculature and the imminent need for an early return to limb function highlight such challenges. The objective of this report was to describe the successful use of anatomical osteosynthesis with a robust locking compression plate in a humeral fracture of an adult giant anteater. The patient was rescued on the highway after being run over and presented for treatment at the Veterinary Teaching Hospital. Surgical stabilization was performed using a craniomedial approach to the humerus, using a customized broad 3.5mm locking compression plate. The patient presented early limb support at 24 hours postoperatively. Radiographic monitoring was performed at 30, 60 and 90 days postoperatively, and bone healing was observed without any complications. It is concluded that the treatment of humerus fractures in giant anteaters requires robust fixation. The use of a reinforced locking compression plate system proved to be effective and adequate to the mechanical load that an adult individual of this species needs for early use of the thoracic limb and, at the same time, efficient in controlling interfragmentary movement, which allowed fracture consolidation.

scholarly journals A prospective study on operative management of displaced fracture of midshaft of clavicle

2017 ◽  
Vol 3 (3) ◽  
pp. 619
Author(s):  
Mohammed Ismail Hathiwale ◽  
Prakash A. Sasnur ◽  
Md. Johorul Islam Tapadar
Keyword(s):  
Plate Fixation ◽  
Operative Management ◽  
Delayed Union ◽  
Locking Compression Plate ◽  
Non Union ◽  
Early Return ◽  
Compression Plate ◽  
Clavicle Fractures ◽  
Displaced Fracture ◽  
A Prospective Study

<p class="abstract"><strong>Background:</strong> <span lang="EN-IN">Clavicle fractures had been traditionally treated non-operatively which resulted in high rates of non-union. The present study has been undertaken to study the role of precontoured locking compression plate in the fixation of mid-third clavicle fractures.</span></p><p class="abstract"><strong>Methods:</strong> <span lang="EN-IN">We reviewed the results of 25 cases of displaced middle third clavicle fractures (Robinson type 2B) which were treated with open reduction and internal fixation with pre-contoured locking compression plate at Al-Ameen Medical College and Hospital</span>.<strong></strong></p><p class="abstract"><strong>Results:</strong> <span lang="EN-IN">Out of 25 patients operated with precontoured LCP, 21 were male and 4 were female patients. One patient had hypertrophic scar, one patient had plate prominence, two patients had delayed union and one patient had implant failure, none of them developed non-union. Constant Murley score was excellent in 19, good in 4 and fair in 1 patient and poor in 1 patient. </span></p><p class="abstract"><strong>Conclusions:</strong> <span lang="EN-IN">Precontoured locking compression plate fixation has better functional outcome, immediate pain relief, early return to function and avoids complications of conservative methods.</span></p>

scholarly journals Distal Humeral Fixation of an Intramedullary Nail Periprosthetic Fracture

2013 ◽  
Vol 2013 ◽  
pp. 1-4
Author(s):  
Hiren M. Divecha ◽  
Hans A. J. Marynissen
Keyword(s):  
Soft Tissue ◽  
Range Of Motion ◽  
Current Literature ◽  
Intramedullary Nail ◽  
Periprosthetic Fracture ◽  
Humeral Fracture ◽  
Locking Compression Plate ◽  
Periprosthetic Fractures ◽  
Intramedullary Device ◽  
Compression Plate

Distal humeral periprosthetic fractures below intramedullary nail devices are complex and challenging to treat, in particular due to the osteopenic/porotic nature of bone found in these patients. Fixation is often difficult to satisfactorily achieve around the intramedullary device, whilst minimising soft tissue disruption. Descriptions of such cases in the current literature are very rare. We present the case of a midshaft humeral fracture treated with a locking compression plate that developed a nonunion, in a 60-year old female. This went on to successful union after exchange for an intramedullary humeral nail. Unfortunately, the patient developed a distal 1/5th humeral periprosthetic fracture, which was then successfully addressed with a single-contoured, extra-articular, distal humeral locking compression plate (Synthes) with unicortical locking screws and cerclage cables proximally around the distal nail tip region. An excellent postoperative range of motion was achieved.

Biomechanical Properties of the 1.5 mm Locking Compression Plate: Comparison with the 1.5 and 2.0 mm Straight Plates in Compression and Torsion

2018 ◽  
Vol 31 (06) ◽  
pp. 438-444 ◽  
Author(s):  
Noel Moens ◽  
John Runciman ◽  
Tom Gibson ◽  
Gwyneth Watrous
Keyword(s):  
Success Rate ◽  
Clinical Relevance ◽  
Locking Plate ◽  
Biomechanical Properties ◽  
Locking Compression Plate ◽  
Fracture Repair ◽  
Gap Model ◽  
Radial Fracture ◽  
Experimental Conditions ◽  
Compression Plate

Objectives The purpose was to compare the biomechanical properties of a 1.5 mm locking compression plate (1.5 LCP) to the 1.5 mm straight plate (1.5 P), 1.5 mm straight plate stacked (1.5 PSt) and 2.0 mm straight plate (2.0 P) in compression and torsion. We hypothesized that biomechanical properties of the 1.5 LCP would be equivalent to properties of the 1.5 P and would represent an alternative for the treatment of radial fractures in miniature breed dogs in which those plates would be used. Materials and Methods A 1 mm fracture gap model was created with a bone surrogate stabilized with a six-hole plate. Sixteen constructs were built for each of the four plate configurations. Eight constructs from each group were tested in compression to failure and eight constructs were tested in torsion to failure. Results In compression testing, the 1.5 LCP was stiffer than the 1.5 P, and had similar stiffness than the 1.5 PSt and the 2.0 P. The load at yield of the 1.5 LCP was slightly lower than the 1.5 P. In torsion, the 1.5 LCP and 1.5 P had similar stiffness, but 1.5 LCP was slightly stronger than 1.5 P. The 1.5 PSt and 2.0 P were overall superior to the 1.5 LCP but only marginally so for the 1.5 PSt. Clinical Relevance The 1.5 LCP can be considered biomechanically equivalent to the 1.5 P under the present experimental conditions. The use of the 1.5 LCP can be considered as an option for radial fracture repair in dogs in which a 1.5 P would have otherwise been used. The use of a locking plate to improve overall success rate, in these fractures, remains to be confirmed clinically.

In vitro biomechanical comparison of limited contact dynamic compression plate and locking compression plate

2005 ◽  
Vol 18 (04) ◽  
pp. 220-226 ◽  
Author(s):  
J. M. Manos ◽  
A. S. Orlansky ◽  
R. J. Todhunter ◽  
E. J. Trotter ◽  
M. C. H. van der Meulen ◽  
...  
Keyword(s):  
Dynamic Compression ◽  
Twist Angle ◽  
Biomechanical Testing ◽  
Good Alternative ◽  
Locking Compression Plate ◽  
Fracture Repair ◽  
Dynamic Compression Plate ◽  
Compression Plate ◽  
Biomechanical Comparison

SummaryThe locking compression plate (LCP) supports biological osteosynthesis by functioning as an internal fixator, rather than as a full or limited contact bone plate which must be adequately contoured and affixed directly to the bone for stable internal fixation of the fracture. In order to help justify the use of the LCP in our veterinary patients, in vitro biomechanical testing was performed comparing the LCP to the conventional limited contact dynamic compression plate (LC-DCP) in canine femurs. We hypothesized that the LCP construct would be at least as stiff under bending and torsional loads as the LC-DCP. The LCP and LC-DCP were applied over a 20-mm osteotomy gap to contralateral bones within each pair of 14 femora. Non-destructive four-point bending and torsion, and cyclical testing in torsion were performed. The constructs were then loaded to failure in torsion. In medial-lateral and lateral-medial structural bending, significant differences were not found between the LCP and LC-DCP, however, at the gap, the LCP construct was stiffer than the LC-DCP in lateral-medial bending. Significant differences in behaviour over time were not noted between the plate designs during cyclical testing. When loading the constructs to failure in internal rotation, the LC-DCP failed at a significantly lower twist angle (P = .0024) than the LCP. Based on the similar performance with loading, the locking compression plate is a good alternative implant for unstable diaphyseal femoral fracture repair in dogs.

scholarly journals Using a reconstruction locking compression plate as external fixator in infected open clavicle fracture

2013 ◽  
Vol 5 (2) ◽  
pp. 11 ◽  
Author(s):  
Norachart Sirisreetreerux ◽  
Paphon Sa-ngasoongsong ◽  
Pongsthorn Chanplakorn ◽  
Noratep Kulachote ◽  
Sukij Laohajaroensombat ◽  
...  
Keyword(s):  
Soft Tissue ◽  
External Fixation ◽  
Tissue Damage ◽  
Clavicle Fracture ◽  
Interesting Case ◽  
Locking Compression Plate ◽  
Fracture Repair ◽  
Definitive Treatment ◽  
Non Union ◽  
Compression Plate

Open clavicle fracture is an uncommon injury mostly caused by severe direct trauma. It is often associated with multiple organ injuries. Generally, surgical intervention with debridement and fracture repair is always indicated in order to prevent infection, non-union, and malalignment. In situations of bony exposure and significant contamination concomitant with severe soft tissue damage, the external fixation is the treatment of choice because of the possibility it offers of providing stable fixation with minimal local tissue damage resulting in excellent union rates and better soft tissue outcome. Nevertheless, traditional external fixation encountered some potential problems as its bulkiness and sharp edges caused discomfort to the patient. In this study, we present an interesting case of a polytraumatized patient with a gunshot injury with complex open clavicle fracture that was successfully treated with external fixation using reconstruction with a locking compression plate as definitive treatment.

Appendicular fracture repair in dogs using the locking compression plate system: 47 cases

2009 ◽  
Vol 22 (04) ◽  
pp. 309-315 ◽  
Author(s):  
L. Sjöström ◽  
M. Devor ◽  
A. Haug ◽  
P. J. Haaland
Keyword(s):  
Surgical Techniques ◽  
Healing Time ◽  
Locking Compression Plate ◽  
Fracture Repair ◽  
Internal Fixator ◽  
Less Invasive ◽  
Surgical Errors ◽  
Compression Plate ◽  
Comminuted Fractures ◽  
One Year

SummaryThe locking compression plate (LCP) has combination screw holes, making it possible to use the implant in three different ways; as a pure internal fixator using locking head screws, as a conventional compression plate using compression screws, or as a hybrid of the two. The experience with the LCP system in veterinary fracture repair is limited. The objective of this study was to evaluate the outcome of appendicular fractures in dogs, which were repaired with the LCP system combined with less invasive surgical techniques. Medical records and radiographs from 47 dogs were studied retrospectively. Thirty-four percent of the fractures were simple, six percent wedge and 60% comminuted fractures of the humerus (11 %), radius and ulna (30 %), femur (34 %) and of the tibia and fibula (25 %). The fractures were treated using the LCP as an internal fixator; in some cases as a plate and rod construct. Forty-six of 47 fractures reached radiographic union. Mean healing time of the fractures was seven weeks (95% confidence interval from 5.8 to 8.3 weeks). There were statistically significant differences in healing time between juvenile (age under one year) and adults. Complications in the form of implant failures and infections were encountered in approximately 11% of the cases. All implant failures were due to surgical errors. The LCP system in combination with a less invasive surgical approach was found advantageous in comminuted fractures where the LCP was used as a bridging plate, in situations when exact plate contouring was difficult, and when other implants prevented the use of bi-cortical screws.

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