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Sternal reconstruction using locking compression plates (LCP): our experience in Egypt, a case series.

ABSTRACT: BACKGROUND:Sternal fractures are rare accounting for about 3-8% of traumatic chest. There are many lines of treatments for sternal fractures which can be classified as conservative or surgical. Surgical techniques include wire fixation and sternal plating. There are no standardization of indications for each line of management. We explore if sternal reconstruction using locking titanium plates and self-tapping screws provide the patient with the best chance of proper sternal healing avoiding chronic pain and its complications and allow the patient early mobilization and rapid restoring of his normal life at its maximum. METHODS:Our inclusion criteria are patients of both gender from 20 to 60?years of age presented with traumatic sternal fracture at any site or pathological fracture due to metastatic or primary tumors infiltrating the sternum. High Associated Injury Scale scores were excluded. Exclusion criteria also included patients younger than 20?years or older than 60?years. Primary outcome is post-operative pain score and is measured using numerical pain scale ranging from zero to 10 where zero means there is no pain at all and ten is the worst imaginable pain ever. RESULTS:Sternal reconstruction using titanium plates has proven to be an efficient method of stabilization with tremendous immediate relief of pain showed by the differences between pre-operative and post-operative pain scale scores in our patients (n?=?5) with Median scores being 7 and 1.5 with range being from 7 to 9 and 1 to 3 respectively (p-value?=?.039). Operative time range between 150?min and 90?min with median of 120?min. Extubation of patients was smooth with no events with median time of extubation being 120?min. From our experience, there were no observed wound complications except at the third patient who suffered a small wound hematoma that was resolved by gentle compressing only and needed no further intervention. CONCLUSION:We recommend adopting sternal reconstruction using titanium plating systems more readily encouraging even larger clinical trials on the way to a clear guidelines. Plating systems show promising results with least pain, better stability, less complications and rapid, smooth recovery. TRIAL REGISTRATION:NCT04092374.

SUBMITTER: Ahmed K

PROVIDER: S-EPMC7441539 | biostudies-literature | 2020 Aug

REPOSITORIES: biostudies-literature

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Sternal reconstruction using locking compression plates (LCP): our experience in Egypt, a case series.

Ahmed Kareem K Nady Mohamed Alaa MA

Journal of cardiothoracic surgery 20200821 1

<h4>Background</h4>Sternal fractures are rare accounting for about 3-8% of traumatic chest. There are many lines of treatments for sternal fractures which can be classified as conservative or surgical. Surgical techniques include wire fixation and sternal plating. There are no standardization of indications for each line of management. We explore if sternal reconstruction using locking titanium plates and self-tapping screws provide the patient with the best chance of proper sternal healing avoi ...[more]

PMID: 32825827

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Project description:ObjectiveTo describe a symphyseal osteotomy stabilised with two short locking compression plates (LCPs) for treatment of class 2 malocclusions.Study designCase series.MethodsFive horses (age range 8 months to 5¾ years) with overjets and/or overbites ranging from 6 to 32 mm and from 0 to 60 mm, respectively, were treated by osteotomy through the caudal third of the mandibular symphysis, cranial to the interdental space. After cranial distraction and ventral rotation of the rostral part of the mandible, two short (5/6 hole), bent 3.5 mm LCPs were applied ventro-laterally and secured with two or three locking screws on each side of the osteotomy. In one case, the osteotomy gap was filled with bone marrow.ResultsFinal outcome was good to excellent. Two cases needed a second corrective surgery, one because of non-occlusion of the cheek teeth and another because of abaxial deviation of the rostral portion of the mandible. In three cases with a persistent fistula, LCPs were removed after bridging; drainage resolved and wounds healed. The time to bridging of the osteotomy gap ranged from 2 to 6.5 months. The procedure is technically challenging. It is important that the incisors are well aligned, which proved to be difficult when there was an abnormal maxillary incisor arcade. Incisors should not make contact when LCPs are fixed. The cheek teeth, however, should have good occlusion after positioning and fixation of the LCPs. Endodontic treatment of open incisor pulp cavities may be helpful.Main limitationsThe study population was small and relatively heterogeneous in severity. A larger population with more severe cases might have allowed for a more definitive assessment of the value of the technique for clinical practice.ConclusionsThis technique can be used to achieve a good correction for class 2 malocclusions. The approach provides adequate stability with smaller implants than other published techniques that require transection of both rami. The technique is less invasive and preserves the roots of the incisors and cheek teeth, as well as the mandibular canal.

Project description:Locked bridge plating relies on secondary bone healing, which requires interfragmentary motion for callus formation. This study evaluated healing of fractures stabilized with a locked plating construct and a far cortical locking construct, which is a modified locked plating approach that promotes interfragmentary motion. The study tested whether far cortical locking constructs can improve fracture-healing compared with standard locked plating constructs.In an established ovine tibial osteotomy model with a 3-mm gap size, twelve osteotomies were randomly stabilized with locked plating or far cortical locking constructs applied medially. The far cortical locking constructs were designed to provide 84% lower stiffness than the locked plating constructs and permitted nearly parallel gap motion. Fracture-healing was monitored on weekly radiographs. After the animals were killed at week 9, healed tibiae were analyzed by computed tomography, mechanical testing in torsion, and histological examination.Callus on weekly radiographs was greater in the far cortical locking constructs than in the locked plating constructs. At week 9, the far cortical locking group had a 36% greater callus volume (p = 0.03) and a 44% higher bone mineral content (p = 0.013) than the locked plating group. Callus in the locked plating specimens was asymmetric, having 49% less bone mineral content in the medial callus than in the lateral callus (p = 0.003). In far cortical locking specimens, medial and lateral callus had similar bone mineral content (p = 0.91). The far cortical locking specimens healed to be 54% stronger in torsion (p = 0.023) and sustained 156% greater energy to failure in torsion (p < 0.001) than locked plating specimens. Histologically, three of six locked plating specimens had deficient bridging across the medial cortex, while all remaining cortices had bridged.Inconsistent and asymmetric callus formation with locked plating constructs is likely due to their high stiffness and asymmetric gap closure. By providing flexible fixation and nearly parallel interfragmentary motion, far cortical locking constructs form more callus and heal to be stronger in torsion than locked plating constructs.

Project description:BackgroundThe locking plate is a useful treatment for lateral clavicle fractures, however, there are limits to the fragment size that can be fixed. The current study aimed to measure the screw angles of three locking plates for lateral clavicle fractures. In addition, to assess the number of screws that can be inserted in different fragment sizes, to elucidate the size limits for locking plate fixation.MethodsThe following three locking plates were analyzed: the distal clavicle plate [Acumed, LLC, Oregon, the USA], the LCP clavicle plate lateral extension [Depuy Synthes, LLC, PA, the USA], and the HAI clavicle plate [HOMS Engineering, Inc., Nagano, Japan]. We measured the angles between the most medial and lateral locking screws in the coronal plane and between the most anterior and posterior locking screws in the sagittal plane. A computer simulation was used to position the plates as laterally as possible in ten normal three-dimensional clavicle models. Lateral fragment sizes of 10, 15, 20, 25, and 30 mm were simulated in the acromioclavicular joint, and the number of screws that could be inserted in the lateral fragment was assessed. Subsequently, the area covered by the locking screws on the inferior surface of the clavicle was measured.ResultsThe distal clavicle plate had relatively large screw angles (20° in the coronal plane and 32° in the sagittal plane). The LCP clavicle lateral extension had a large angle (38°) in the sagittal plane. However, the maximum angle of the HAI clavicle plate was 13° in either plane. The distal clavicle plate allowed most screws to be inserted in each size of bone fragment. For all locking plates, all screws could be inserted in 25 mm fragments. The screws of distal clavicle plate covered the largest area on the inferior surface of the clavicle.ConclusionsScrew angles and the numbers of screws that could be inserted in the lateral fragment differed among products. Other augmented fixation procedures should be considered for fractures with fragment sizes < 25 mm that cannot be fixed with a sufficient number of screws.

Dataset Information

Sternal reconstruction using locking compression plates (LCP): our experience in Egypt, a case series.

Publications

Sternal reconstruction using locking compression plates (LCP): our experience in Egypt, a case series.

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