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1.
Bone Joint J ; 103-B(5): 958-963, 2021 May.
Artigo em Inglês | MEDLINE | ID: mdl-33934651

RESUMO

AIMS: The purpose of this study was to report bone adaptive changes after anatomical total shoulder arthroplasty (TSA) using a standard-length hydroxyapatite (HA)-coated humeral component, and to report on a computer-based analysis of radiographs to determine changes in peri-implant bone density objectively. METHODS: A total of 44 TSAs, performed between 2011 and 2014 using a cementless standard-length humeral component proximally coated with HA, were included. There were 23 males and 21 females with a mean age of 65 years (17 to 65). All shoulders had good quality radiographs at six weeks and five years postoperatively. Three observers graded bone adaptive changes. All radiographs were uploaded into a commercially available photographic software program. The grey value density of humeral radiological areas was corrected to the grey value density of the humeral component and compared over time. RESULTS: Stress shielding was graded as mild in 14 shoulders and moderate in three; the greater tuberosity was the predominant site for stress shielding. The mean metaphyseal and diaphyseal fill-fit ratios were 0.56 (SD 0.1) and 0.5 (SD 0.07), respectively. For shoulders with no radiologically visible stress shielding, the mean decrease in grey value in zones 1 and 7 was 20%, compared with 38% in shoulders with radiologically visible stress shielding. CONCLUSION: The rate of moderate stress shielding was 7%, five years after implantation of a cementless standard-length HA-coated humeral component. Clinical observation of stress shielding identified on radiographs seems to represent a decrease in grey value of 25% or more. Cite this article: Bone Joint J 2021;103-B(5):958-963.


Assuntos
Artroplastia do Ombro/instrumentação , Úmero/cirurgia , Desenho de Prótese , Prótese de Ombro , Adolescente , Adulto , Idoso , Materiais Revestidos Biocompatíveis , Durapatita , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Interpretação de Imagem Radiográfica Assistida por Computador
2.
World J Surg Oncol ; 19(1): 140, 2021 May 05.
Artigo em Inglês | MEDLINE | ID: mdl-33952258

RESUMO

BACKGROUND: Treatments for metastatic fracture of the humeral shaft continue to evolve as advances are made in both oncological and operative management. The purposes of this study were to critically evaluate the effectiveness of intercalary endoprostheses in treating metastatic humeral shaft fractures and to clarify the surgical indications for this technique. METHODS: Sixty-three patients treated surgically for 66 metastatic fractures of the humerus shaft were retrospectively reviewed. Intramedullary nailing (IMN) was performed in 16 lesions, plate fixation (PF) in 33 lesions, and prosthetic replacement in 17 lesions. The operative time, intraoperative blood loss, and postoperative complications were noted. The function of the upper extremities was assessed by the Musculoskeletal Tumor Society (MSTS) score and American Shoulder and Elbow Surgeons (ASES) score. All included patients were followed until reconstructive failure or death. RESULTS: The operative time was relatively shorter in the prosthesis group than in either the IMN group (p = 0.169) or PF group (p = 0.002). Notably, intraoperative blood loss was significantly less in the prosthesis group than in either the IMN group (p = 0.03) or PF group (p = 0.012). The average follow-up time was 20.3 (range, 3-75) months, and the overall survival rate was 59.7% at 12 months and 46.7% at 24 months. One rotator cuff injury, 3 cases of iatrogenic radial nerve palsy, 5 cases of local tumor progression, and 1 mechanical failure occurred in the osteosynthesis group, whereas one case of aseptic loosening of the distal stem and one case of local relapse were observed in the prosthesis group. There were no significant differences in functional scores among the three groups. CONCLUSIONS: Intercalary prosthetic replacement of the humeral shaft may be a reliable solution for pathologic fractures patients; it is indicated for lesions with substantial bone loss, or accompanied soft tissue mass, or for those patients with better prognosis.


Assuntos
Fixação Intramedular de Fraturas , Fraturas do Úmero , Neoplasias , Placas Ósseas , Humanos , Fraturas do Úmero/cirurgia , Úmero/cirurgia , Prognóstico , Estudos Retrospectivos , Resultado do Tratamento
3.
BMJ Case Rep ; 14(5)2021 May 27.
Artigo em Inglês | MEDLINE | ID: mdl-34045194

RESUMO

Surgical reconstruction after humeral resection represents a challenging issue in orthopaedic oncology. Particularly in paediatric patients, the main concerns are maintaining limb function and reconstruction longevity. We describe a novel strategy of humeral reconstruction based on the use of a three-dimensional-printed custom-made prosthesis in a 13-year-old patient diagnosed with osteosarcoma. The implant was specifically designed to sustain the native head, which was spared, as it was not involved by the neoplastic tissue. The mechanical support the prosthesis provided was associated with the biological stimulus of a free vascularised fibular graft to obtain an anatomic, functional and stable construct. This solution has had good longevity, and after 3 years of follow-up, the patient still shows excellent limb function and personal satisfaction.


Assuntos
Neoplasias Ósseas , Osteossarcoma , Procedimentos Cirúrgicos Reconstrutivos , Adolescente , Neoplasias Ósseas/cirurgia , Criança , Fíbula/cirurgia , Humanos , Úmero/diagnóstico por imagem , Úmero/cirurgia , Osteossarcoma/cirurgia , Impressão Tridimensional , Resultado do Tratamento
4.
BMC Musculoskelet Disord ; 22(1): 396, 2021 Apr 28.
Artigo em Inglês | MEDLINE | ID: mdl-33910540

RESUMO

BACKGROUND: Convertible stem designs allow for stem retention during revision from anatomical to reverse shoulder arthroplasty. In some cases conversion is not possible for example due to excessive soft tissue tensioning. In these cases a total revision is necessary. The primary aim of this Dutch registry study was to evaluate the unforeseen stem reversion percentages in revision of convertible anatomical shoulder arthroplasty to reverse shoulder arthroplasty. METHODS: Shoulder arthroplasties (n = 2834) performed between 2014 and 2016 registered in the Dutch Arthroplasty Registry were selected. In 2016 94% of primary arthroplasties and 92% of revision arthroplasties were registered in the database. Arthroplasties were selected on convertibility. Mean follow-up was 2.4 years. We analysed the number of revisions for convertible and non-convertible designs. Cases with obligatory revisions as periprosthetic joint infections, stem loosening and periprosthetic fractures were excluded. Kaplan-Meier analysis was used to calculate humeral stem survival. Multivariate cox-regression analysis was used to determine risk factors for stem revision. RESULTS: The majority of procedures (respectively 90.9 and 72.1% for the convertible and non-convertible group) concerned a conversion to reverse shoulder arthroplasty (p = .02). In the convertible group, the stem was retained in 29 out of 40 patients (72.5%). Overall implant survival was 94.5% after a mean follow-up of 2.4 years. Hemiartroplasty, fracture as primary indication, previous shoulder surgery and lower age were risk factors for revision. CONCLUSIONS: Although convertible designs are gaining popularity due to their expected advantage in revision arthroplasty, surgeons should be aware that during a revision procedure in 27.5% of the patients an unforeseen stem revision is necessary.


Assuntos
Artroplastia do Ombro , Articulação do Ombro , Artroplastia do Ombro/efeitos adversos , Humanos , Úmero/cirurgia , Sistema de Registros , Reoperação , Articulação do Ombro/diagnóstico por imagem , Articulação do Ombro/cirurgia , Resultado do Tratamento
5.
BMC Musculoskelet Disord ; 22(1): 350, 2021 Apr 12.
Artigo em Inglês | MEDLINE | ID: mdl-33845833

RESUMO

BACKGROUND: Poor functional outcome can result from humeral greater tuberosity (GT) fracture if not treated appropriately. A two-screw construct is commonly used for the surgical treatment of such injury. However, loss of reduction is still a major concern after surgery. To improve the biomechanical strength of screw fixation in GT fractures, we made a simple modification of the two-screw construct by adding a cerclage wire to the two-screw construct. The purpose of this biomechanical study was to analyze the effect of this modification for the fixation of GT fractures. MATERIALS AND METHODS: Sixteen fresh-frozen human cadaveric shoulders were used in this study. The fracture models were arbitrarily assigned to one of two fixation methods. Group A (n = 8) was fixed with two threaded cancellous screws with washers. In group B (n = 8), all screws were set using methods identical to group A, with the addition of a cerclage wire. Horizontal traction was applied via a stainless steel cable fixed directly to the myotendinous junction of the supraspinatus muscle. Displacement of the fracture fixation under a pulling force of 100 N/200 N and loading force to construct failure were measured. RESULTS: The mean displacements under 100 N and 200 N traction force were both significantly decreased in group B than in group A. (100 N: 1.06 ± 0.12 mm vs. 2.26 ± 0.24 mm, p < 0.001; 200 N: 2.21 ± 0.25 mm vs. 4.94 ± 0.30 mm, p < 0.001) Moreover, the failure load was significantly higher in group B compared with group A. (415 ± 52 N vs.335 ± 47 N, p = 0.01), CONCLUSIONS: The current biomechanical cadaveric study demonstrated that the two-screw fixation construct augmented with a cerclage wire has higher mechanical performance than the conventional two-screw configuration for the fixation of humeral GT fractures. TRIAL REGISTRATION: Retrospectively registered.


Assuntos
Fixação Interna de Fraturas , Fraturas do Ombro , Fenômenos Biomecânicos , Parafusos Ósseos , Cadáver , Humanos , Úmero/diagnóstico por imagem , Úmero/cirurgia , Fraturas do Ombro/cirurgia
6.
Biomed Res Int ; 2021: 6649712, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-33748273

RESUMO

Background: Minimally invasive plate osteosynthesis (MIPO) is one of the generally accepted surgical techniques for the treatment of humeral shaft fractures. However, despite the high bone union rate, a variety of complications are still prevailing. Moreover, the current literature lacks data comparing the anterolateral MIPO approach using dynamic compression plates accommodating different numbers of screws. The aim of this study was to analyze the biomechanical performance of comminuted humeral shaft fractures fixed with dynamic compression plates using either two or three screws per fragment. Methods: Six pairs of fresh-frozen human cadaveric humeri from donors aged 66.8 ± 5.2 years were randomized to two paired study groups for simulation of bridge-plated comminuted shaft fracture type AO/OTA 12-C1/2/3 without interfragmentary bony support, using a dynamic compression plate positioned on the anterolateral surface and fixed with two (group 1) or three (group 2) screws per fragment. All specimens underwent nondestructive quasistatic biomechanical testing under lateral bending, anterior bending, axial bending, and torsion in internal rotation, followed by progressively increasing cyclic torsional loading in internal rotation until failure. Results: Initial stiffness of the plated specimens in lateral bending, anterior bending, axial bending, and torsion was not significantly different between the groups (P ≥ 0.22). However, cycles to 10°, 15°, and 20° torsional deformation and cycles to construct failure were significantly higher in group 2 compared with group 1 (P ≤ 0.03). Conclusions: From a biomechanical perspective, no significant superiority is identified in terms of primary stability when using two or three screws per fragment for bridge compression plating of comminuted humeral shaft fractures. However, three-screw configurations provide better secondary stability and maintain it with a higher resistance towards loss of reduction under dynamic loading. Therefore, the use of a third screw may be justified when such better secondary stability is required.


Assuntos
Placas Ósseas , Parafusos Ósseos , Fixação Interna de Fraturas , Fraturas do Úmero , Úmero , Desenho de Prótese , Idoso , Cadáver , Feminino , Humanos , Fraturas do Úmero/patologia , Fraturas do Úmero/cirurgia , Úmero/patologia , Úmero/cirurgia , Masculino , Pessoa de Meia-Idade
7.
J Pediatr Orthop ; 41(4): e328-e336, 2021 Apr 01.
Artigo em Inglês | MEDLINE | ID: mdl-33560708

RESUMO

PURPOSE: The purpose of this study was to analyze the long-term results of humeral lengthening in achondroplastic patients and make suggestions on the most appropriate surgical technique to improve patient outcomes. METHODS: Fifty-four humeral lengthening procedures performed in 27 achondroplastic patients were reviewed. Elongations were performed by means of callotasis with unilateral external fixation. Inclusion criteria were: achondroplastic patients under 17 years without prior arm operations and minimum follow-up of 36 months. RESULTS: Fifty humeri in 25 patients (13 men and 12 women), aged between 9 and 17 years, met the inclusion criteria. Mean humeral lengthening was 8.82 cm (range: 5 to 10.5 cm), which represented an elongation of 54.80% (range: 46% to 63%) of the original length. The healing index was 0.91 months (range: 0.72 to 1.4 mo) per centimeter gained. Shoulder and elbow range of motion and stability were preserved in 47 limbs. Noncomplicated cases consistently experienced a significant functional improvement in the performance of activities of daily living such as putting on footwear and personal hygiene. Short-term complications included 11 pin-tract infections, 1 radial nerve neuropraxia, and 1 failure of the regenerated bone formation. None of these complications prevented from completion of treatment. Long-term complications included 2 cases of nonunion, 3 elbow flexion contractures, and 2 cases of psychological dissatisfaction, all of them in 4 patients. Factors associated with long-term complications were intraoperative fragment displacement and distal humeral osteotomy. No fractures of the regenerated bone were identified in the long term. CONCLUSIONS: Callotasis with unilateral external fixation is a reliable and well-tolerated procedure for humeral lengthening in achondroplastic patients, with an acceptable complication rate. Guided fixator placement and a proximal humeral osteotomy are strongly recommended technical tips as they may help prevent complications and improve outcomes. LEVEL OF EVIDENCE: Level IV-case series.


Assuntos
Acondroplasia/cirurgia , Úmero/crescimento & desenvolvimento , Úmero/cirurgia , Atividades Cotidianas , Adolescente , Criança , Articulação do Cotovelo/fisiopatologia , Fixadores Externos/efeitos adversos , Feminino , Humanos , Masculino , Osteogênese por Distração/efeitos adversos , Osteogênese por Distração/métodos , Osteotomia/efeitos adversos , Amplitude de Movimento Articular , Articulação do Ombro/fisiopatologia , Resultado do Tratamento , Cicatrização
8.
Clin Biomech (Bristol, Avon) ; 82: 105283, 2021 02.
Artigo em Inglês | MEDLINE | ID: mdl-33524845

RESUMO

BACKGROUND: Revision reverse shoulder arthroplasty (RSA) poses considerable surgical challenges. We hypothesized that a newly developed press-fit stem, which is modeled on the medullary canal of the supracondylar region of the distal humerus by a slight distal bend, achieve both correct fit and sufficient primary stability and that additional distal fixation by interlocking screws is favorable in case of advanced humeral bone loss. METHODS: A modular tapered press-fit stem was implanted in 16 Sawbone humeri in three consecutively created defect situations (200 mm (experimental group type 3°), 160 mm (type 4°) and 120 mm (type 5°) bone length above the epicondylar line. In experimental groups type 4° and 5°, additional distal interlocking screw fixation with one to three screws was tested. Primary stability was investigated by measuring micromotions with a high-precision rotational setup. FINDINGS: Highest relative micromotions were noted at the proximal end in experimental groups type 3° and type 4°, whereas in type 5° highest micromotions could be seen at the distal end. Overall micromotions were significantly lower in type 3° and increased with extended defect size. In experimental group type 5°, micromotions increased with reduced additional distal screw fixation. INTERPRETATION: The examined press-fit stem did not provide sufficient primary rotational stability in all constructs without additional support. Advanced distal humeral bone loss had a strong impact on primary fixation. In experimental group type 5° with 120 mm bone remaining, it might be beneficial to use three distal interlocking screws in the supracondylar region in order to neutralize torque and to avoid early loosening.


Assuntos
Artroplastia do Ombro , Reabsorção Óssea/cirurgia , Úmero/cirurgia , Artroplastia do Ombro/instrumentação , Parafusos Ósseos , Feminino , Humanos , Úmero/patologia , Masculino , Desenho de Prótese , Reoperação
9.
BMC Musculoskelet Disord ; 22(1): 63, 2021 Jan 11.
Artigo em Inglês | MEDLINE | ID: mdl-33430839

RESUMO

BACKGROUND: Locked titanium nails are considered the reference treatment for metastatic bone lesions of the humerus in patients with aggressive histotypes, high risk of fracture or when estimated survival is lower than 6 months.Nevertheless, they are responsible for CT and MRI artifacts which interfere with postoperative radiotherapy and follow-up.The IlluminOss® is an intramedullary stabilization system which is introduced inside the humeral canal in a deflated state, and is then distended with a monomer which hardens after exposure to blue light,stabilizing the segment; it does not cause artifacts, allowing easier and more effective radiotherapy and follow-up. The aim of this study is to report our experience, indications, possible advantages and limitations of this stabilization system at 24 months of minimum follow-up in a series of 12 patients affected by pathological fractures or impending fractures of the humerus. METHODS: This is a retrospective case-series that included all patients who underwent surgery with the IlluminOss® Photodynamic Bone Stabilization System for pathological osteolyses and fractures of the humerus. Intraoperative and postoperative complications were valued. RESULTS: 12 patients and 13 procedures were included in the study. All surgeries were performed without intraoperative complications. No early postoperative complications were noted. The wounds healed in all cases and stitches were removed at two weeks from surgery, so the patients were able to perform chemotherapy after three weeks. All patients except one had a painless active range of motion which reached 90°.The VAS score was 7 preoperatively and 2.6 at one month from surgery. Pain relief was also associated to radiotherapy and chemotherapy. Unfortunately, two nail ruptures were reported at 4 and 12 months of follow-up. No artifacts were noted in the postoperative CT scans so the radiotherapy plans were easily performed without the need of dose compensation. CONCLUSIONS: The IlluminOss® intramedullary stabilization system can provide primary stability in humeral fractures and impending fractures;the surgical technique is easy and minimally invasive.Moreover,it does not present artifacts at postoperative imaging,probably giving a better chance to perform prompt radiotherapy and chemotherapy.However, randomized clinical studies are necessary to verify its potential strength and if precocious adjuvant radio- and chemotherapy are associated to a reduction of the local progression rate.


Assuntos
Fixação Intramedular de Fraturas , Fraturas do Úmero , Osteólise , Pinos Ortopédicos/efeitos adversos , Seguimentos , Fixação Intramedular de Fraturas/efeitos adversos , Humanos , Úmero/diagnóstico por imagem , Úmero/cirurgia , Estudos Retrospectivos , Resultado do Tratamento
10.
Int Orthop ; 45(5): 1281-1286, 2021 05.
Artigo em Inglês | MEDLINE | ID: mdl-33447873

RESUMO

PURPOSE: Total elbow arthroplasty (TEA) is associated with a relatively high complication rate, and exceptionally catastrophic complications might lead to amputation. The purpose of this study was to determine the incidence and aetiology of amputation performed at our institution in upper extremity limbs with a prior TEA. METHODS: Between 1973 and 2018, 1906 consecutive TEAs were performed at our institution. Upper extremity amputation was performed in seven (0.36%) elbows with five transhumeral amputations and two shoulder disarticulations. The group consisted of five females and two males with a mean age of 64 years (range, 37-80). The index TEA had been performed for rheumatoid arthritis (n = 2), rheumatoid arthritis with acute fracture (n = 2), radiation associated nonunion (n = 2), and metastatic cancer (n = 1). Mean follow-up after amputation was three years (range, 3 months-5 years). RESULTS: Mean time between amputation and TEA was 5 years (range, 2 months-13 years). The indications for amputation included uncontrolled deep infection in six (86%) elbows and tumor recurrence in one (14%) elbow. Only one elbow (14%) was fitted with a prosthesis. Six (86%) patients died at a mean of three years (range, 3 months-5 years) after amputation. CONCLUSION: The results of this study highlight a low incidence of amputation after TEA. Most amputations were the direct result of TEA complications, with infection being the most common cause of amputation. Outcomes after amputation are concerning, with poor overall survival and few patients being fit for a prosthesis.


Assuntos
Artroplastia de Substituição do Cotovelo , Articulação do Cotovelo , Prótese de Cotovelo , Adulto , Idoso , Idoso de 80 Anos ou mais , Amputação , Artroplastia de Substituição do Cotovelo/efeitos adversos , Cotovelo , Articulação do Cotovelo/cirurgia , Prótese de Cotovelo/efeitos adversos , Feminino , Seguimentos , Humanos , Úmero/cirurgia , Masculino , Pessoa de Meia-Idade , Amplitude de Movimento Articular , Resultado do Tratamento
11.
Int Orthop ; 45(3): 681-687, 2021 03.
Artigo em Inglês | MEDLINE | ID: mdl-33420880

RESUMO

PURPOSE: Reverse shoulder arthroplasty (RSA) is often indicated in elderly patients with displaced proximal humerus fractures (PHF). The rate of greater tuberosity (GT) healing varies from 37 to 90% in this population. The aim of this study was to assess greater and lesser tuberosity (LT) fixation and healing on CT scan after RSA for PHF. Our hypothesis was that both GT and LT healing leads to better functional results after RSA for fracture. METHODS: Our retrospective cohort consisted of 28 patients treated with an RSA for a four-part PHF during the inclusion period. The mean age at surgery was 77 years. Clinical examination and CT scan were performed at a minimum one year follow-up to assess tuberosity position and healing. RESULTS: The GT healed in 22 patients (78.5%), the LT in 24 patients (87.5%) and both tuberosities were healed in 20 patients (71.5%). Constant score was significantly improved with GT, LT and both tuberosity healing (p = 0.05, p = 0.04 and p = 0.02 respectively). Motion in anterior elevation was improved with GT and both tuberosity healing (p = 0.01 and p = 0.04 respectively). Motion in external rotation was improved with GT and both tuberosity healing (p = 0.01 and p = 0.02 respectively). CONCLUSION: GT and LT healing was associated with better functional results and active motion. Anatomical reduction and consolidation of both tuberosities is beneficial with a cumulative effect for functional recovery.


Assuntos
Artroplastia do Ombro , Fraturas do Ombro , Articulação do Ombro , Idoso , Artroplastia do Ombro/efeitos adversos , Seguimentos , Consolidação da Fratura , Humanos , Úmero/cirurgia , Amplitude de Movimento Articular , Estudos Retrospectivos , Fraturas do Ombro/diagnóstico por imagem , Fraturas do Ombro/cirurgia , Articulação do Ombro/cirurgia , Tomografia Computadorizada por Raios X , Resultado do Tratamento
12.
BMC Surg ; 21(1): 56, 2021 Jan 22.
Artigo em Inglês | MEDLINE | ID: mdl-33482784

RESUMO

BACKGROUND: Synchronous multicentric osteosarcoma (SMOS) is a rare disease characterized by simultaneous multicentricity of intraosseous osteosarcoma without visceral involvement. SMOS, including a skull lesion, which occurs relatively rarely, and reconstruction using a frozen autograft after the excision of a lesion of SMOS has been infrequently reported previously. CASE PRESENTATION: We report an 18-year-old girl with SMOS, with lesions located in the left distal femur, right proximal humerus, and left occipital bone. Her major complaint was pain and swelling around the left knee joint. Asymptomatic lesions of the humerus and skull bone were detected on a systemic bone scan. No visceral organ metastasis was observed. A biopsy of the distal femoral lesion revealed osteosarcoma. Based on the histological findings, multiple bone lesions, and absence of visceral lesion, the clinical diagnosis of SMOS was made. After five courses of neoadjuvant chemotherapy with a regimen of doxorubicin and cisplatin, reconstruction using a tumor prosthesis following wide excision of the left distal femur was performed, and total necrosis was histologically observed in the retracted specimen. Following three cycles of adjuvant chemotherapy, tumor excision and reconstruction with a frozen autograft treated with liquid nitrogen was conducted for both lesions of the humerus and skull, rather than tumor prosthesis or synthetics, in order to retain a normal shoulder function, and to obtain a good cosmetic and functional outcome after treatment of the skull lesion. Further adjuvant chemotherapy could not be administered after the completion of the surgical treatment for all lesions because the adverse events due to chemotherapy were observed. At over 5 years after the diagnosis, she remains clinically disease-free. CONCLUSIONS: An early correct diagnosis, the proper management of chemotherapy, and surgical treatment for all lesions are essential for achieving a good clinical outcome, even in SMOS including a skull lesion. By performing reconstruction using a frozen autograft for a proximal humeral lesion and a skull lesion after confirming the good histological efficacy of neoadjuvant chemotherapy for the primary lesion, the excellent function of the shoulder joint and a good cosmetic outcome at the site of the skull lesion was acquired without complications or recurrence.


Assuntos
Neoplasias Ósseas , Crioterapia , Úmero , Neoplasias Primárias Múltiplas , Osso Occipital , Osteossarcoma , Adolescente , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Autoenxertos , Neoplasias Ósseas/diagnóstico por imagem , Neoplasias Ósseas/tratamento farmacológico , Neoplasias Ósseas/cirurgia , Cisplatino/administração & dosagem , Protocolos Clínicos , Terapia Combinada , Crioterapia/métodos , Doxorrubicina/administração & dosagem , Feminino , Neoplasias Femorais/diagnóstico por imagem , Neoplasias Femorais/tratamento farmacológico , Neoplasias Femorais/cirurgia , Humanos , Úmero/diagnóstico por imagem , Úmero/cirurgia , Úmero/transplante , Iodo/uso terapêutico , Terapia Neoadjuvante , Neoplasias Primárias Múltiplas/diagnóstico por imagem , Neoplasias Primárias Múltiplas/tratamento farmacológico , Neoplasias Primárias Múltiplas/cirurgia , Nitrogênio/uso terapêutico , Osso Occipital/diagnóstico por imagem , Osso Occipital/cirurgia , Osso Occipital/transplante , Osteossarcoma/diagnóstico por imagem , Osteossarcoma/tratamento farmacológico , Osteossarcoma/cirurgia , Procedimentos Cirúrgicos Reconstrutivos/métodos , Solução Salina/uso terapêutico , Neoplasias Cranianas/diagnóstico por imagem , Neoplasias Cranianas/tratamento farmacológico , Neoplasias Cranianas/cirurgia , Transplante Autólogo/métodos
14.
Rev Med Suisse ; 16(719): 2414-2420, 2020 Dec 16.
Artigo em Francês | MEDLINE | ID: mdl-33325658

RESUMO

Proximal humerus fracture (PHF) is the 3rd most common fracture over age 65, and its incidence increases with age. The combination of an aging population and a high incidence in geriatric patients constitute a serious potential public health concern. The treatment of PHF is debated. Recent publications report similar results of conservative versus surgical treatment in several types of fractures. Therapeutic decision based on a multiparametric analysis is recommended, there is yet no consensus on the parameters to be analyzed. A recent study suggests taking into consideration individual parameters in deciding the therapeutic strategy and provides a pragmatic treatment algorithm. We propose here a simplified version of this algorithm, guiding therapeutic decision between conservative treatment, osteosynthesis and arthroplasty.


Assuntos
Fraturas do Úmero/cirurgia , Úmero/cirurgia , Fraturas do Ombro/cirurgia , Artroplastia , Tratamento Conservador , Fixação Interna de Fraturas , Humanos , Resultado do Tratamento
15.
Rev Med Suisse ; 16(719): 2421-2425, 2020 Dec 16.
Artigo em Francês | MEDLINE | ID: mdl-33325659

RESUMO

Humeral shaft fractures are relatively common, representing up to 5% of all fractures. Conservative management is the treatment of choice for most humeral shaft fractures and offers good functional and union outcomes. Age and oblique fractures of the proximal third are two risk factors for non-union. Surgical indication threshold should be lower for patients with these factors. Functional outcomes and union rates after plating and intramedullary nailing are comparable, but the likelihood of shoulder complications is higher with intramedullary nailing. Finally, there is no advantage to early exploration of the radial nerve even in case of secondary radial nerve palsy.


Assuntos
Fraturas do Úmero , Fixação Interna de Fraturas , Fixação Intramedular de Fraturas , Humanos , Fraturas do Úmero/cirurgia , Úmero/cirurgia , Resultado do Tratamento
16.
J Am Acad Orthop Surg ; 28(22): e1014-e1019, 2020 Nov 15.
Artigo em Inglês | MEDLINE | ID: mdl-33156588

RESUMO

INTRODUCTION: Metastatic bone disease of the extremities is a notable cause of morbidity and mortality. Surgical management is not curative; therefore, risks and benefits of surgery must be carefully considered. Previous studies of surgical outcomes are limited by small sample sizes because of the rare incidence of these procedures. In this study, we aim to describe the rates of complications and mortality in the first 30 days after surgical treatment of metastatic bone disease of the femur and humerus. METHODS: A retrospective review of patients in the National Surgical Quality Improvement Program database who underwent surgery between 2005 and 2016 was performed. Demographics, comorbidities, preoperative factors, surgical parameters, and postoperative complications were extracted. The cohort was also partitioned by surgical site and surgical modality. RESULTS: One thousand one hundred fifty-four patients were identified, 13.1 percent of patients experienced one or more complications within 30 days of surgery. The most common complications were urinary tract infection (2.9%), deep vein thrombosis (2.5%), pneumonia (2.4%), pulmonary embolism (2.0%), and surgical site infections (1.9%). In addition, intraoperative or postoperative bleeding requiring transfusion occurred in 32.9% of cases. The rates of unplanned readmission and unplanned revision surgery were 12.7% and 4.1%, respectively. The 30-day mortality rate was 7.1%. Femur and arthroplasty cases were associated with a higher risk of bleeding requiring transfusion. Prophylactic stabilization was associated with a lower risk of unplanned revision surgery (P = 0.015) and a lower overall complication rate (P < 0.0001). CONCLUSION: Our study demonstrates a higher 30-day mortality rate than previously reported. In additon, prophylactic stabilization of impending pathologic fractures may be associated with a lower risk of complications and unplanned revision surgery. The National Surgical Quality Improvement Program or other large database reports can help surgeons counsel patients appropriately regarding the risks and benefits of surgery.


Assuntos
Neoplasias Ósseas/secundário , Neoplasias Ósseas/cirurgia , Extremidades , Fêmur/cirurgia , Úmero/cirurgia , Complicações Pós-Operatórias/epidemiologia , Neoplasias Ósseas/mortalidade , Estudos de Coortes , Bases de Dados Factuais , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Procedimentos Ortopédicos , Pneumonia/epidemiologia , Embolia Pulmonar/epidemiologia , Qualidade da Assistência à Saúde , Estudos Retrospectivos , Medição de Risco , Taxa de Sobrevida , Fatores de Tempo , Resultado do Tratamento , Infecções Urinárias/epidemiologia , Trombose Venosa/epidemiologia
17.
Zhongguo Gu Shang ; 33(10): 895-902, 2020 Oct 25.
Artigo em Chinês | MEDLINE | ID: mdl-33107249

RESUMO

OBJECTIVE: To compare clinical effect of Kirschner wire radial sector fixation and bilateral ulnar radial cross fixation in treating supracondylar fracture of humerus in children after closed reduction. METHODS: From March 2017 to December 2018, 60 children with supracondylar fracture of humerus treated with closed reduction and Kirschner wire fixation were analyzed retrospectively, and divided into two groups according to different needling methods. Thirty patients in radial three needles fan fixation group (group A), including 19 males and 11 females, aged from 2 to 10 years old with an average of (5.00±2.10) years old, 21 patients were typeⅡ and 9 patients were typeⅢ according to Gartland classification. Thirty patients in cross fixationwith 3 needles on both ulnar and radial side group(group B), including 22 males and 8 females, aged from 1 to 9 years old with an average of(5.13±2.08) years old, 19 patients were typeⅡand 11 patients were typeⅢ. Healing time of fracture, postoperative complications, elbow flexion and extension activity, forearm rotation activity recovery, elbow carrying angle and angle loss after operation between two groups were observed and compared. Mayo Elbow function score at the final following up was used to evaluate clinical efficacy. RESULTS: All patients were followed up, while there were no significant difference in follow-up time and fracture healing time between two groups (P>0.05);there was 1 patient occurred iatrogenic ulnar nerve injury in group A, 9 patients in group B, and there was difference between two groups (P<0.01);2 patients in group A occurred mild displacement and 1 patient in group B, while no significant difference between two groups(P>0.05). No cubitus varus deformity, needle infection, osteofascial compartment syndrome and myositis ossificans occurred. There was no significant difference in elbow flexion, extension activity, and forearm rotation activity between two groups at 3 months after operation(P>0.05); there was no significant difference in elbow carrying angle and its loss angle between two groups at 3 and 6 months after operation (P>0.05);there was also no significant difference in Mayo Elbow function score and efficacy evaluation at the final follow-up (P>0.05). CONCLUSION: Closed reduction and Kirschner wire at the early stage of fracture has advantages of less trauma, easy reduction, stable fixation, and early functional exercise. The risk of iatrogenic ulnar nerve injury caused by fan-shaped fixation of three radial needles is less than that of cross fixation of three radial needles.


Assuntos
Fios Ortopédicos , Fraturas do Úmero , Criança , Pré-Escolar , Feminino , Humanos , Fraturas do Úmero/cirurgia , Úmero/cirurgia , Lactente , Masculino , Amplitude de Movimento Articular , Estudos Retrospectivos
18.
J Pediatr Orthop ; 40(8): e690-e696, 2020 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-32776771

RESUMO

PURPOSE: The debate on the treatment of type IIa supracondylar humerus fractures has yet to be resolved. The purpose of this study was to assess the factors associated with successful closed reduction and immobilization and to assess the efficacy of a novel radiographic "hourglass" angle measurement in the management of type IIa supracondylar humerus fractures within the pediatric population. METHODS: An institutional review board-approved retrospective review of all children who underwent closed reduction and casting or splinting of an isolated type IIa supracondylar humerus fractures treated at 2 pediatric hospitals from January 1, 2009 to August 31, 2016. Analyzed radiographic parameters included Baumann angle (BA), humerocondylar angle (HCA), perpendicular distance (PD) from the anterior humeral line to the capitellum, and the hourglass angle (HGA). These parameters were measured on injury radiographs (XR), postreduction XR, and at the first and final follow-up XR. The success of closed reduction was defined as maintenance of an acceptable reduction without a secondary procedure. The interobserver reliability was calculated. RESULTS: There were 77 elbows treated with closed reduction and long-arm cast or splint immobilization. Of those closed reductions, 76.62% of elbows (59/77) maintained their reduction alignment and did not require surgical treatment for percutaneous pinning. In this series, the BA was not significantly different following closed reduction ([INCREMENT]1.04 degrees; P=0.081); however, the PD ([INCREMENT]1.89 mm), HGA ([INCREMENT]7.38 degrees), and HCA ([INCREMENT]5.07 degrees) had significant improvement following closed reduction (P<0.001 for all). The use of procedural sedation during reduction was strongly associated with success, 83.05% (49/59) with sedation compared with 55.56% (10/18) success without sedation (P=0.025). Furthermore, fractures that underwent a secondary procedure had 6.20 degrees less HGA following a closed reduction (P=0.016) and required additional follow-up visits (P=0.0037). The success of type IIa supracondylar humerus fractures did not significantly differ based on sex (P=0.5684), laterality (P=0.6975), mechanism of injury (P>0.9999), location of care-emergency department versus clinic (P=0.1160), or type of fracture immobilization (P=0.7411). The mean HGA in normal elbows was 177.8 degrees. The interobserver reliability for HCA was poor [intraclass correlation coefficient (ICC)=0.342]; fair for BA (ICC=0.458); and excellent for both PD and HGA (ICC=0.769 and 0.805, respectively) (P<0.001 for all). CONCLUSIONS: Improved and acceptable radiographic parameters were achieved by a closed reduction in the majority of minimally displaced type IIa fractures treated by closed reduction and immobilization in this series. HCA upon presentation was significantly greater in successful cases, and failure to improve and maintain HGA and PD following closed reduction was associated with loss of reduction. Procedural sedation during reduction was strongly associated with success. The HGA and PD were consistent parameters used to determine effective management of type IIa fractures. This study adds support for a nonoperative closed reduction under sedation with immobilization of selected type IIa supracondylar humerus fractures.


Assuntos
Fixação Intramedular de Fraturas , Fraturas do Úmero , Úmero , Criança , Cotovelo/cirurgia , Feminino , Fixação Intramedular de Fraturas/efeitos adversos , Fixação Intramedular de Fraturas/métodos , Humanos , Fraturas do Úmero/diagnóstico , Fraturas do Úmero/cirurgia , Úmero/diagnóstico por imagem , Úmero/cirurgia , Masculino , Radiografia/métodos , Procedimentos Cirúrgicos Reconstrutivos/métodos , Procedimentos Cirúrgicos Reconstrutivos/estatística & dados numéricos , Estudos Retrospectivos , Resultado do Tratamento
19.
BMJ Case Rep ; 13(7)2020 Jul 08.
Artigo em Inglês | MEDLINE | ID: mdl-32641312

RESUMO

A 17-year-old man with osteosarcoma of the proximal humerus was planned for possible limb salvage surgery after standard neoadjuvant chemotherapy. However, during the surgical phase of treatment, the COVID-19 or SARS-CoV-2 (severe acute respiratory syndrome coronavirus 2) outbreak occurred changing the healthcare landscape due to uncertainty regarding the virus, risk of COVID-19 infection and complications, and implementation of an enhanced community quarantine restricting movement of people within cities. Instead of limb salvage surgery, the patient underwent a forequarter amputation. Exposure to the virus in a high-risk hospital setting was minimised with patient discharge after a short hospital stay and home convalescence monitored by video conferencing. Multidisciplinary sarcoma team meetings with family members and a sarcoma navigator nurse were crucial in managing expectations and deciding on appropriate treatment in the setting of a novel infectious disease causing a pandemic.


Assuntos
Amputação/métodos , Neoplasias Ósseas , Cisplatino/administração & dosagem , Infecções por Coronavirus , Doxorrubicina/administração & dosagem , Úmero , Salvamento de Membro/métodos , Osteossarcoma , Pandemias , Pneumonia Viral , Adolescente , Antineoplásicos , Betacoronavirus , Neoplasias Ósseas/patologia , Neoplasias Ósseas/terapia , Infecções por Coronavirus/epidemiologia , Infecções por Coronavirus/prevenção & controle , Humanos , Úmero/diagnóstico por imagem , Úmero/cirurgia , Imageamento por Ressonância Magnética/métodos , Masculino , Estadiamento de Neoplasias , Osteossarcoma/patologia , Osteossarcoma/terapia , Pandemias/prevenção & controle , Seleção de Pacientes , Pneumonia Viral/epidemiologia , Pneumonia Viral/prevenção & controle
20.
Medicine (Baltimore) ; 99(27): e20715, 2020 Jul 02.
Artigo em Inglês | MEDLINE | ID: mdl-32629645

RESUMO

To understand the feasibility, clinical effect, and complications related to biological reconstruction techniques for long limb malignant bone tumors after excision.This retrospective study included eighty patients with malignant bone tumors treated at our hospital between January 2007 and January 2019. After tumor resection, 52 cases of intercalary and 28 cases of osteoarticular bone grafts were used. The implanted bone included devitalized recycling bone, fibular, and allograft.The average follow up period was 42.19 months for 80 patients, among whom 15 (18.75%) died. The 5-year EFS and OS were 58% and 69%, respectively. The average length of the replanted bone was 18.57 cm. The MSTS scores of intercalary and osteoarticular bone grafts were 87.24% and 64.00%, respectively. In 23 cases (44.23%) of metaphyseal and 26 cases (32.5%) of the diaphysis, bone graft union was obtained at the first stage. The factors affecting bone union were the patient's gender, age, devitalization bone methods and whether the implanted bone was completely fixed. Postoperative complications included delayed bone union in 15 patients, fractures in 25 cases, nonunion in 22 cases, bone resorption in 14 cases, and postoperative infection in 4 cases. Twenty-eight cases of bone grafting required revision surgery, including replacement of internal fixation, autologous bone graft, debridement, removal of internal fixation, and replacement with prosthetic replacement.Biological reconstructions with massive bone grafts are useful in the reconstruction of certain malignant extremity bone tumors after wide excision.


Assuntos
Neoplasias Ósseas/cirurgia , Transplante Ósseo/métodos , Neoplasias Femorais/cirurgia , Úmero/cirurgia , Procedimentos Cirúrgicos Reconstrutivos/métodos , Sarcoma/cirurgia , Tíbia/cirurgia , Adolescente , Adulto , Criança , Feminino , Humanos , Masculino , Estudos Retrospectivos , Adulto Jovem
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