Comminuted fractures of the proximal ulna—Preliminary results with an anatomically preshaped locking compression plate (LCP) system

Injury ◽  
2010 ◽  
Vol 41 (12) ◽  
pp. 1306-1311 ◽  
Author(s):  
S. Siebenlist ◽  
T. Torsiglieri ◽  
T. Kraus ◽  
R.D. Burghardt ◽  
U. Stöckle ◽  
...  
Keyword(s):  
Locking Compression Plate ◽  
Proximal Ulna ◽  
Preliminary Results ◽  
Compression Plate ◽  
Comminuted Fractures

Minimally Invasive Plate Osteosynthesis for Comminuted Fractures of the Metaphysis of the Radius

2005 ◽  
Vol 30 (2) ◽  
pp. 220-225 ◽  
Author(s):  
J. IMATANI ◽  
T. NODA ◽  
Y. MORITO ◽  
T. SATO ◽  
H. HASHIZUME ◽  
...  
Keyword(s):  
Soft Tissue ◽  
Minimally Invasive ◽  
Plate Osteosynthesis ◽  
Locking Compression Plate ◽  
Minimally Invasive Plate Osteosynthesis ◽  
Pronator Quadratus ◽  
Radial Inclination ◽  
Loss Of Reduction ◽  
Compression Plate ◽  
Comminuted Fractures

Five comminuted and displaced fractures of the distal metaphysis of the radius were treated by a technique of minimally invasive plate osteosynthesis (MIPO) with the aim of minimizing soft tissue damage and devascularization of the fracture fragments. This technique used the small AO T-shaped locking compression plate (AO LCP T-plate) and left the pronator quadratus intact. Radial inclination, palmar tilt, and ulnar variance were restored without loss of reduction in all five cases and the fractures healed at an average of 10 weeks, with good to excellent clinical outcomes.

scholarly journals Surgical management of proximal humerus fracture treated with locking compression plate

2017 ◽  
Vol 3 (6) ◽  
pp. 1165
Author(s):  
Sivakumar Arumugam ◽  
Venkateshwara Arumugam ◽  
V. Raviraman
Keyword(s):  
Internal Fixation ◽  
Open Reduction ◽  
Proximal Humerus ◽  
Early Mobilization ◽  
Open Reduction Internal Fixation ◽  
Locking Compression Plate ◽  
Proximal Humerus Fractures ◽  
Compression Plate ◽  
Comminuted Fractures ◽  
Humerus Fractures

<p class="abstract"><strong>Background:</strong> Proximal humerus fractures accounts for about 4 to 5% of all fractures.  Treatment of unstable, displaced, and comminuted fractures of the proximal humerus remain challenging. Significant controversy continues regarding the best methods of treating displaced proximal humerus fractures. Various operative procedures are carried out, the recent trend in internal fixation has moved on to locking plates. The present study is undertaken to evaluate the functional outcome and complication of proximal humerus fractures treated by locking compression plate.</p><p class="abstract"><strong>Methods:</strong> This is a prospective study comprising of 30 patients with fractures of proximal humerus were treated by open reduction and internal fixation with locking compression plate were evaluated at Velammal  Institute Of Medical  Sciences, Madurai from the period of April 2015 to December 2016. Clinical and radiological evaluation was done. Patients will undergo open reduction internal fixation with locking compression plate for the sustained fracture under general anesthesia.<strong></strong></p><p class="abstract"><strong>Results:</strong> In our series, the majority of the patients were males, elderly aged, with RTA being the commonest mode of injury, involving 2 part, 3 part and 4 part fractures of the proximal humerus. Excellent and satisfactory results were found in 76.7% of patients with unsatisfactory results in 23.3 % according to Neer’s criteria. There were 100 % union rates and no failures.</p><p><strong>Conclusions:</strong> In conclusion locking Compression, the plate is an advantageous implant in proximal humeral fractures due to angular stability, particularly in comminuted fractures and in Osteoporotic bones in elderly patients, thus allowing early mobilization.</p>

A NEWLY DESIGNED ASSEMBLY LOCKING COMPRESSION PLATE TO TREAT COMMINUTED FRACTURES OF THE FEMORAL SHAFT: A BIOMECHANICAL STUDY

2019 ◽  
Vol 19 (06) ◽  
pp. 1950059 ◽  
Author(s):  
MIN ZHAO ◽  
JIANGJUN ZHOU ◽  
ZHUANYI YU ◽  
QIUXIN CHENG ◽  
JINGXIANG CHEN ◽  
...  
Keyword(s):  
Axial Load ◽  
Mechanical Stability ◽  
Femoral Shaft ◽  
Locking Compression Plate ◽  
Strain Diagram ◽  
Maximum Displacement ◽  
Relative Maximum ◽  
Significant Difference ◽  
Compression Plate ◽  
Comminuted Fractures

The aim of this paper is to compare the biomechanical characteristics of a newly designed assembly locking compression plate (NALCP) and traditional locking compression plate (LCP) for internal fixation of femoral-shaft comminuted fractures. A femoral-shaft wedge fracture model (AO classification 32-C2.1) was created in six pairs of femoral specimens ([Formula: see text]) randomly divided into two equal groups. Biomechanical properties were tested with axial and torsional loading tests. The relative maximum displacement of fracture blocks and strain was recorded. A strain diagram was made; the fatigue test results of NALCP specimens under axial load were recorded. Under axial load, the relative maximum displacement of fracture blocks in the [Formula: see text], [Formula: see text], and [Formula: see text] axes was smaller in NALCP specimens than in LCP specimens ([Formula: see text] and 0.01, respectively). Under torsional load, the relative maximum displacement of fracture blocks in the [Formula: see text] and [Formula: see text] axes in NALCP specimens was less than that in LCP specimens ([Formula: see text]) but no statistically significant difference in the [Formula: see text] axes ([Formula: see text]) was found. In both cases, the main NALCP strain was higher than the LCP strain ([Formula: see text]) but no statistically significant difference in mean strain ([Formula: see text]) was found. Our NALCP provides strong mechanical stability for comminuted femoral fractures and can effectively avoid stress concentration, reduce stress shielding, and facilitate bone healing.

scholarly journals Functional Outcome of Locking Compression Plate in Neer's two-part, three-part, four-part Proximal Humerus Fractures

2016 ◽  
Vol 2 (1) ◽  
pp. 1-8
Author(s):  
KV Ramesh ◽  
G Mahesh ◽  
KC Kiran ◽  
Roshan Kumar
Keyword(s):  
Functional Outcome ◽  
Traffic Accidents ◽  
Proximal Humerus ◽  
Road Traffic ◽  
Early Mobilization ◽  
Locking Compression Plate ◽  
Proximal Humerus Fractures ◽  
Compression Plate ◽  
Comminuted Fractures ◽  
Humerus Fractures

ABSTRACT Introduction Proximal fractures of the humerus account for about 4 to 5% of all fractures. They are the most common fractures in elderly population. Treatment of unstable, displaced, and comminuted fractures of the proximal humerus remains challenging. Objectives The present study is undertaken to evaluate the functional outcome of proximal humerus fractures treated by locking compression plate in 20 patients. Materials and methods Prospective study was done involving 20 adult patients with proximal humerus fractures admitted from October 2012 to December 2013 treated by open reduction and internal fixation (ORIF) with locking compression plate. The functional follow-up was done for a minimum period of 3 months and the patients were evaluated by Constant Murley scoring (CMS). Results In our series, the majority of the patients were middle-aged males, with road traffic accidents (RTAs) being the most common cause of injury, involving 2-part, 3-part, and 4-part fractures of the proximal humerus. The fractures were united in 19 patients and 1 patient had avascular necrosis (AVN). Excellent results were seen in 15% of patients, good results in 55%, moderate results in 15%, and poor results in 15% according to CMS. There were 95% union rates, 5% of AVN, and no failures. Conclusion In conclusion, locking compression plate is an advantageous implant in proximal humerus fractures due to angular stability, particularly in comminuted fractures and in osteoporotic bones of elderly patients, which allows their early mobilization. How to cite this article Mahesh G, Kiran KC, Ramesh KV, Kumar R. Functional Outcome of Locking Compression Plate in Neer's two-part, three-part, four-part Proximal Humerus Fractures. J Med Sci 2016;2(1):1-8.

Combination of a Plate and an External Fixator for Biological Osteosynthesis of Comminuted Fractures

Swiss Surgery ◽  
2002 ◽  
Vol 8 (5) ◽  
pp. 230-236 ◽  
Author(s):  
Pippow ◽  
Krähenbühl ◽  
Michel ◽  
Witschger
Keyword(s):  
External Fixator ◽  
Fixateur Externe ◽  
Locking Compression Plate ◽  
Biological Osteosynthesis ◽  
Compression Plate ◽  
Comminuted Fractures ◽  
Instabile Frakturen

Bei instabiler Fraktur mit bikortikaler Trümmerzone reicht eine unilaterale Platte nicht aus, um genügend Stabilität zur Heilung zu erzeugen, da die Fragmente der plattenfernen Kortikalis nicht aufeinander abgestützt werden können. Neue Plattensysteme mit winkelstabil verankerten Schrauben (Locking Compression Plate LCP) können dieses Problem zum Teil lösen. Eine mechanische Stabilisation der plattenfernen Kortikalis kann auch erreicht werden durch das Anbringen eines zusätzlichen, Fixateur Externe (FE), wobei dieser kontralateral oder ipsilateral zur Osteosyntheseplatte angebracht werden kann. Zur Übernahme der neutralisierenden Funktion der nicht dargestellten und somit nicht devitalisierten medialen Kortikalis reicht ein Halbrahmen-Fixateur. Der Vorteil dieser Methode gegenüber der LCP liegt in der ubiquitären Verfügbarkeit und in der Möglichkeit, eine konventionelle Plattenosteosynthese mechanisch "verstärken" zu können, ohne dass die konventionelle Platte gegen eine LCP ausgewechselt werden muss. An zwölf Patienten wurden instabile Frakturen der Tibia, des Humerus und des Femurs mit einer Kombination aus Platte und Halbrahmen eines Fixateur externe versorgt. Am Unterschenkel wurde die Platte lateral und der Halbrahmenfixateur medial angebracht, am Humerus und am Femur wurde der FE auf der lateralen Seite über der Platte angebracht, so dass die Platte zusammen mit dem Halbrahmenfixateur einen ganzen Rahmen bildete und damit die Platte verstärkt wurde. Alle Patienten wurden bis zur Konsolidation der Fraktur nachkontrolliert: Alle Frakturen heilten ohne Zweiteingriff, ausser bei einem Patienten, bei dem wegen eines Staph. epidermidis Infektes eine frühzeitige Metallentfernung vorgenommen werden musste. Beim axialen Belastungstest im Modell konnten wir zeigen, dass ein kontralateraler FE die Steifigkeit einer defektüberbrückenden Platte um 73% erhöhen kann. Diese Kombination ist unseres Erachtens eine hilfreiche Methode, um bei instabilen Frakturen die Prinzipien der biologischen Osteosynthese anwenden zu können, ohne dafür Stabilität zu opfern. Besonders bei gelenknahen Frakturen stellt sie eine Alternative zum Marknagel dar.

scholarly journals Locking compression plate osteosynthesis of complicated mandibular fractures in six horses

2009 ◽  
Vol 22 (01) ◽  
pp. 54-58 ◽  
Author(s):  
M. Kummer ◽  
J. A. Auer ◽  
D. Nitzl ◽  
A. E. Fürst ◽  
J. M. Kuemmerle
Keyword(s):  
Fracture Healing ◽  
Plate Osteosynthesis ◽  
Plate Fixation ◽  
Corrective Osteotomy ◽  
Locking Compression Plate ◽  
Mandibular Fractures ◽  
Cerclage Wire ◽  
Compression Plate ◽  
Comminuted Fractures ◽  
Horizontal Ramus

SummaryComplicated mandibular fractures were recognised in one foal, one pony and four horses. The foal was two months old while the adult animals ranged in age from 12 to 24 years. Three horses had a unilateral horizontal ramus fracture. Two fractures were open and one was closed. Comminution was present in one of these patients while the other two horses had marked displacement of the fragments. Two suffered from comminuted fractures of the horizontal and vertical ramus of the mandible. One of these patients had open and infected fractures. One foal had a bilateral horizontal ramus fracture with marked periosteal ‘new bone’ formation and malalignement which required corrective osteotomy. Each horse underwent locking compression plate (LCP) osteosynthesis consisting of open fracture reduction and application of one to three 4.5/5.0 mm LCP at the ventral, lateral or caudal aspect of the mandible under fluoroscopic control. Two 3.5 mm LCP were used in the foal. Plate fixation was supported by application of a cerclage wire construct between the incisor and premolar teeth in most patients. Complete fracture healing, with an excellent functional and cosmetic outcome, was achieved in all of the patients. Complications encountered included seroma formation, screw and wire breakage, as well as implant and apical tooth root infections. The LCP was removed after fracture healing had occurred in four patients.

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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