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2.
Clinics (Sao Paulo) ; 75: e1824, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32935824

RESUMO

OBJECTIVES: The recent advancements in spine fixation aid in the treatment of complex spinal pathologies. Both the iliac screw (IS) and the S2-alar-iliac (S2AI) screw provide adequate stability in the fixation of complex lumbosacral spine pathologies, leading to a significant increased rate of using these techniques in the daily practice of the spine surgeons. This study aims to analyze, describe, and compare the insertion and positioning parameters of the S2AI screw and IS techniques in children without spinal deformities. METHODS: An observational retrospective study was conducted at a university hospital in 2018, with 25 computed tomography (CT) images selected continuously. Mann-Whitney-Shapiro-Wilk tests were performed. The reliability of the data was assessed using the intraclass correlation. The data were stratified by age group only for Pearson's correlation analysis. RESULTS: The mean age was 11.7 years (4.5 SD). The mean IS length was 106.63 mm (4.59 SD). The mean length of the S2AI screw was 104.13 mm (4.22 SD). The mean skin distance from the IS entry point was 28.13 mm (4.27 SD) and that for the S2AI screw was 39.96 mm (4.54 SD). CONCLUSIONS: Through CT, the S2AI screw trajectory was observed to have a greater bone thickness and skin distance than the IS. There was a linear correlation between age and screw length for both techniques. A similar relationship was observed between skin distance and age for the S2AI screw technique. In children, the S2AI screw technique presents advantages such as greater cutaneous coverage and implant thickness than the IS technique.


Assuntos
Parafusos Ósseos , Fixação Interna de Fraturas/instrumentação , Sacro , Fusão Vertebral/métodos , Coluna Vertebral/diagnóstico por imagem , Criança , Humanos , Reprodutibilidade dos Testes , Estudos Retrospectivos , Fusão Vertebral/instrumentação , Coluna Vertebral/cirurgia , Tomografia Computadorizada por Raios X , Resultado do Tratamento
3.
Zhonghua Wai Ke Za Zhi ; 58(9): 713-717, 2020 Sep 01.
Artigo em Chinês | MEDLINE | ID: mdl-32878419

RESUMO

Objective: To investigate the clinical effect of static staple in the treatment of metatarsal neck fracture. Methods: The clinical data of 34 patients with the 2(nd) to 5(th) metatarsal neck fracture admitted to the Department of Orthopaedic Surgery, Tianjin Fifth Central Hospital from January 2017 to December 2018 were retrospectively analyzed.Seventeen patients were treated with static staple and 17 with retrograde Kirschner wire.In solustaple group, there were 11 males, 6 females, aged 34.6 years (range: 21 to 50 years), 10 cases on the right side, 7 cases on the left side.In retrograde Kirschner wire group, there were 12 males and 5 females, aged 36.2 years (range: 23 to 53 years), 9 on the right and 8 on the left.The fracture healing time was recorded and the postoperative complications were counted.The American Orthopedic Foot and Ankle Society Score (AOFAS) forefoot score, visual analogue scale (VAS), and the active flexion and extension range of metatarsophalangeal joints were measured to compare the clinical efficacy of the two groups.The data were compaired by t test, non-parametric or χ(2) test. Results: All patients were followed up for 14.2 months (range: 12 to 17 months).All the fractures were healed and there was no statistically significant difference between solustaple group and retrograde Kirschner wire group in fracture healing time ((11.2±2.1) week vs.(11.5±3.1) week, t=0.030, P=0.743).There was no statistically significant difference between VAS (1.00 (1.00) vs.1.00 (1.50) M(Q(R)), Z=-0.443, P=0.658) and AOFAS scores(90.9±5.3 vs. 88.6±6.1, t=1.174, P=0.249) at the last follow-up. The difference in active dorsiflexion((35.1±4.3)° vs.(31.2±6.4)°, t=2.055, P=0.048) and flexion range of motion ((34.7±4.5)° vs. (30.2±5.3)°, t=2.681, P=0.011) between the two groups was statistically significant. One case of open fracture in the Solustaple group had local skin necrosis, and three patients had metatarsal pain after weight-bearing walking. Four patients in the retrograde Kirschner wire group developed metatarsalgia after weight-bearing walking, and two patients developed mild dorsal extension contracture and joint pain. Conclusions: The treatment of the 2(nd) to 5(th) metatarsal neck fracture by static staple is minimally invasive and firmly fixed. It can effectively reduce the complications of tendon and joint adhesion, and is beneficial to the fracture healing and joint function recovery.


Assuntos
Traumatismos do Pé/cirurgia , Fixação Interna de Fraturas/métodos , Ossos do Metatarso/cirurgia , Adulto , Fios Ortopédicos , Feminino , Fixação Interna de Fraturas/instrumentação , Humanos , Masculino , Ossos do Metatarso/lesões , Pessoa de Meia-Idade , Estudos Retrospectivos , Resultado do Tratamento , Adulto Jovem
4.
Bone Joint J ; 102-B(8): 1082-1087, 2020 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-32731834

RESUMO

AIMS: Osteopetrosis (OP) is a rare hereditary disease that causes reduced bone resorption and increased bone density as a result of osteoclastic function defect. Our aim is to review the difficulties, mid-term follow-up results, and literature encountered during the treatment of OP. METHODS: This is a retrospective and observational study containing data from nine patients with a mean age of 14.1 years (9 to 25; three female, six male) with OP who were treated in our hospital between April 2008 and October 2018 with 20 surgical procedures due to 17 different fractures. Patient data included age, sex, operating time, length of stay, genetic type of the disease, previous surgery, fractures, complications, and comorbidity. RESULTS: The mean follow-up period was 92.5 months (25 to 140). Bony union was observed in all of our patients. Osteomyelitis developed in two patients with femoral shaft fractures, and two patients had peri-implant stress fractures. CONCLUSION: Treatment of fractures in OP patients is difficult, healing is protracted, and the risk of postoperative infection is high. In children and young adults with OP who have open medullary canal and the epiphyses are not closed, fractures can be treated with surgical techniques such as intramedullary titanium elastic nail (TENS) technique or fixation with Kirschner (K)-wire. Cite this article: Bone Joint J 2020;102-B(8):1082-1087.


Assuntos
Fixação Interna de Fraturas/métodos , Fixação Intramedular de Fraturas/métodos , Consolidação da Fratura/fisiologia , Fraturas Ósseas/cirurgia , Osteopetrose/complicações , Adolescente , Pinos Ortopédicos , Fios Ortopédicos , Criança , Feminino , Seguimentos , Fixação Interna de Fraturas/efeitos adversos , Fixação Interna de Fraturas/instrumentação , Fixação Intramedular de Fraturas/efeitos adversos , Fraturas Ósseas/diagnóstico por imagem , Humanos , Tempo de Internação , Masculino , Duração da Cirurgia , Osteopetrose/diagnóstico por imagem , Osteopetrose/cirurgia , Estudos Retrospectivos , Medição de Risco , Amostragem , Fatores de Tempo , Resultado do Tratamento , Adulto Jovem
5.
Bone Joint J ; 102-B(7): 874-880, 2020 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-32600133

RESUMO

AIMS: The aim of this study was to investigate whether intraoperative 3D fluoroscopic imaging outperforms dorsal tangential views in the detection of dorsal cortex screw penetration after volar plating of an intra-articular distal radial fracture, as identified on postoperative CT imaging. METHODS: A total of 165 prospectively enrolled patients who underwent volar plating for an intra-articular distal radial fracture were retrospectively evaluated to study three intraoperative imaging protocols: 1) standard 2D fluoroscopic imaging with anteroposterior (AP) and elevated lateral images (n = 55); 2) 2D fluoroscopic imaging with AP, lateral, and dorsal tangential views images (n = 50); and 3) 3D fluoroscopy (n = 60). Multiplanar reconstructions of postoperative CT scans served as the reference standard. RESULTS: In order to detect dorsal screw penetration, the sensitivity of dorsal tangential views was 39% with a negative predictive value (NPV) of 91% and an accuracy of 91%; compared with a sensitivity of 25% for 3D fluoroscopy with a NPV of 93% and an accuracy of 93%. On the postoperative CT scans, we found penetrating screws in: 1) 40% of patients in the 2D fluoroscopy group; 2) in 32% of those in the 2D fluoroscopy group with AP, lateral, and dorsal tangential views; and 3) in 25% of patients in the 3D fluoroscopy group. In all three groups, the second compartment was prone to penetration, while the postoperative incidence decreased when more advanced imaging was used. There were no penetrating screws in the third compartment (extensor pollicis longus groove) in the 3D fluoroscopy groups, and one in the dorsal tangential views group. CONCLUSION: Advanced intraoperative imaging helps to identify screws which have penetrated the dorsal compartments of the wrist. However, based on diagnostic performance characteristics, one cannot conclude that 3D fluoroscopy outperforms dorsal tangential views when used for this purpose. Dorsal tangential views are sufficiently accurate to detect dorsal screw penetration, and arguably more efficacious than 3D fluoroscopy. Cite this article: Bone Joint J 2020;102-B(7):874-880.


Assuntos
Placas Ósseas , Parafusos Ósseos , Fixação Interna de Fraturas/instrumentação , Fraturas do Rádio/diagnóstico por imagem , Fraturas do Rádio/cirurgia , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Feminino , Fluoroscopia , Humanos , Imageamento Tridimensional , Masculino , Pessoa de Meia-Idade , Posicionamento do Paciente , Estudos Retrospectivos , Sensibilidade e Especificidade , Tomografia Computadorizada por Raios X
6.
Orthop Clin North Am ; 51(3): 339-343, 2020 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-32498952

RESUMO

Pediatric spine trauma presents unique management challenges. These injuries are often the result of high-energy mechanisms and are associated with other serious injuries that can complicate surgical and nonsurgical approaches. The pediatric population presents a host of challenges related to patient compliance, healing challenges, and patient tolerance of therapy. Percutaneous pedicle screw instrumentation, temporary fixation without fusion, continues to expand in its role of pediatric spine fracture treatment. Compared with open instrumentation and fusion, this technique addresses many of the previously mentioned challenges. Additional study is needed to evaluate the clinical utility of this approach in pediatric spinal fractures.


Assuntos
Fraturas da Coluna Vertebral/cirurgia , Fusão Vertebral/métodos , Adolescente , Criança , Feminino , Fixação Interna de Fraturas/instrumentação , Fixação Interna de Fraturas/métodos , Humanos , Masculino , Procedimentos Cirúrgicos Minimamente Invasivos/instrumentação , Procedimentos Cirúrgicos Minimamente Invasivos/métodos , Parafusos Pediculares , Resultado do Tratamento
7.
Bone Joint J ; 102-B(6): 744-748, 2020 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-32475231

RESUMO

AIMS: The aim of this study was to compare patient-reported outcome measures (PROMs) and the Single Assessment Numerical Evaluation (SANE) score in patients treated with a volar locking plate for a distal radial fracture. METHODS: This study was a retrospective review of a prospective database of 155 patients who underwent internal fixation with a volar locking plate for a distal radial fracture between August 2014 and April 2017. Data which were collected included postoperative PROMs (Disabilities of the Arm, Shoulder, and Hand questionnaire (DASH) and Patient-Rated Wrist Evaluation (PRWE)), and SANE scores at one month (n = 153), two months (n = 155), three months (n = 144), six months (n = 128), and one year (n = 73) after operation. Patients with incomplete data were excluded from this study. Correlation and agreement between PROMs and SANE scores were evaluated. Subgroup analyses were carried out to identify correlations according to variables such as age, the length of follow-up, and subcategories of the PRWE score. RESULTS: The Pearson correlation coefficient (r) between PROMs and SANE scores was -0.76 (p < 0.001) for DASH and -0.72 (p < 0.001) for PRWE, respectively. Limits of agreement between PROMs and '100-SANE' scores were met for at least 93% of the data points. In subgroup analysis, there were significant negative correlations between PROMs and SANE scores for all age groups and for follow-up of more than six months. The correlation coefficient between PRWE subcategories and SANE score was -0.67 (p < 0.001) for PRWE pain score and -0.69 (p < 0.001) for PRWE function score, respectively. CONCLUSION: We found a significant correlation between postoperative SANE and PROMs in patients treated with a volar locking plate for a distal radial fracture. The SANE score is thus a reliable indicator of outcome for patients who undergo surgical treatment for a radial fracture. Cite this article: Bone Joint J 2020;102-B(6):744-748.


Assuntos
Placas Ósseas , Autoavaliação Diagnóstica , Fixação Interna de Fraturas/instrumentação , Medidas de Resultados Relatados pelo Paciente , Fraturas do Rádio/cirurgia , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Correlação de Dados , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Fatores de Tempo , Adulto Jovem
10.
Acta Chir Orthop Traumatol Cech ; 87(2): 101-107, 2020.
Artigo em Tcheco | MEDLINE | ID: mdl-32396510

RESUMO

PURPOSE OF THE STUDY Comparison of the outcomes of clavicle midshaft fractures using two different surgical techniques, namely intramedullar osteosynthesis using elastic stable intramedullary nailing (ESIN) with medial cap and extramedullar plate osteosynthesis. MATERIAL AND METHODS The prospective randomized trial was conducted at the Department of Trauma Surgery of the Department of Surgery of the University Hospital Hradec Králové in the Czech Republic at the Level I Trauma Center between 2014 and 2018 and compared two types of osteosynthesis of clavicle midshaft fractures. 60 patients were enrolled in the study and were randomly assigned to one of the two groups. In Group 1, the participants were treated by ESIN and in Group 2 by plate osteosynthesis. The operative technique was chosen by the sealed envelope method. According to the randomization list created by a specialised statistical company, every envelope was marked with a unique number and contained the intramedullar "IM", or the extramedullar "EM" sign. RESULTS The observation of statistical parameters by unpaired t test detected significantly different results: a shorter incision using ESIN osteosynthesis (median = 2.9 cm) compared with plate osteosynthesis (median 14 cm, p < 0.001), longer X-ray exposure using ESIN (median = 325 s) compared with plate osteosynthesis (median = 16.5 s, p < 0.001) and radiation dose using ESIN (median = 996 cGy/cm2) compared with plate osteosynthesis (median = 4 cGy/cm2, p < 0.001). The difference in other parameters such as operative time, in-patient length of stay and duration of rehabilitation was not statistically significant. The time to clavicle fracture repair was comparable in both the surgical arms, i.e. approximately 3 months. Also, the duration of incapacity for work was not statistically different. Functional Constant Shoulder Score at a one-year followup is comparable in both the two arms (p = 0.268). The Dunn s method necessitated a longer operative time when treating multifragmental midshaft clavicle fracture by the ESIN compared to simple fractures. No statistically significant difference was detected in the operative time of different procedures and in the number of bone fragments. The functional outcome was excellent in 25 patients (83%) in each method. DISCUSSION Most midshaft clavicle fractures are still treated non-operatively with good outcomes. The indication for surgical treatment is the dislocation of fragments greater than the width of the clavicle bone, the shortening of fragments greater than 2 cm and the angulation of more than 30°. Patient after operative treatment profits from bone healing by absolute or relative stability. In recent years, new intramedullar techniques other than open plate reduction and fixation have emerged. For example, elastic stable intramedullary titan nailing. Both the methods are full-fledged without functional differences in longterm follow-up. CONCLUSIONS We consider the intramedullar osteosynthesis to be the most appropriate surgical approach for simple midshaft spiral, oblique and transverse clavicle fractures and also wedge oblique fractures. Plate osteosynthesis is useful for all types of fractures. No statistically significant difference in the rate of bone healing was observed after intramedullar or extramedullar ostesynthesis, but multifragmentary fractures healed faster when plate osteosynthesis was used. The determining factor for the received radiation dose is solely the surgical method, not the type of fracture. There is a statistically significant difference in shorter X-ray exposure and lower received radiation dose in plate fixation and reduction. The complication rate is comparable in both the methods. Key words: elastic stable intramedullary nailing, midshaft clavicle fracture, ESIN, TEN, titan elastic nail, clavicle plate osteosynthesis, 3.5 LCP clavicular plate, indication for midshaft fracture treatment.


Assuntos
Clavícula/lesões , Clavícula/cirurgia , Fixação Interna de Fraturas/métodos , Fraturas Ósseas/cirurgia , Pinos Ortopédicos , Placas Ósseas , Fixação Interna de Fraturas/instrumentação , Consolidação da Fratura , Humanos , Estudos Prospectivos , Resultado do Tratamento
11.
Acta Chir Orthop Traumatol Cech ; 87(2): 114-119, 2020.
Artigo em Tcheco | MEDLINE | ID: mdl-32396512

RESUMO

PURPOSE OF THE STUDY MIPO (Minimally Invasive Plate Osteosynthesis) technique is currently a commonly used method to treat fractures of the distal third of tibia diaphysis. At the same time, it is just like other methods accompanied by a relatively high complication rate. The purpose of this study was to determine whether the use of this technique at our department is effective and whether the complication rate does not differ considerably from values reported by literature. MATERIAL AND METHODS In the period 2014-2016, minimally invasive plate osteosynthesis was performed in a total of 42 patients, who had suffered a fracture of the distal third of tibia diaphysis. They sustained a low-energy trauma. The mean age of patients was 50 years (range 27-86 years) and the mean follow-up period was 11.8 months (range 1.5-38 months). All the patients were treated with a minimally invasive technique with the use of subcutaneous LCP. In 41 patients (98%) it was inserted via anteromedial approach. In one patient only (2%), the LCP was inserted via anterolateral approach due to the unfavourable local finding on the medial side of the distal lower limb. RESULTS Of the total number of operated patients, 35 patients (83%) underwent surgery within 24 hours of injury, including two patients in whom an external fixator was used. The mean operative time was 61 minutes (range of 30-150 minutes). The primary healing occurred in 93% of patients with radiological signs of healing within 5.6 months on average (range of 1.5-16 months). Time to full weight bearing was 4.2 months on average (range of 1.5-16 months). Delayed healing was observed in four patients. In three patients, a non-union developed, necessitating revision surgery. Infectious complications were reported in seven patients, in three of whom deep wound infection developed. In one case, the chronic infection resulted in a lower limb amputation. In five patients mal-union occurred. DISCUSSION The outcomes achieved by the authors in treating fractures of the distal third of tibia diaphysis with a minimally invasive technique do not considerably differ from the outcomes reported by other authors in literature. In terms of the outcomes and the complication rate, the MIPO method is comparable to the treatment of these fractures with the use of nails. Limiting for fracture healing is the vascular supply. Therefore, in treating these injuries it is necessary to proceed with minimum invasiveness and carefulness and to seek to limit any additional trauma to soft tissues, thus also to vascular supply. In case of syndesmosis failure, the concurrent treatment of distal fibula fractures is clearly indicated. In case of intact syndesmosis, fibular osteosynthesis and the sequence of procedures are to be decided by the surgeon. At present, rigid osteosynthesis is being abandoned for potential slower healing up to development of non-unions. CONCLUSIONS The treatment of fractures of the distal third of tibia diaphysis remains an unsolved issue despite the development of stateof-the art materials, implants and surgical techniques. The MIPO technique can be considered an effective method of treatment of these types of fractures, achieving a high success rate of healing and acceptable rate of complications. Key words: minimally invasive plate osteosynthesis (MIPO), distal third of tibia diaphysis, locking compression plate (LCP).


Assuntos
Diáfises/cirurgia , Fixação Interna de Fraturas/métodos , Fraturas da Tíbia/cirurgia , Adulto , Idoso , Idoso de 80 Anos ou mais , Placas Ósseas , Fixação Interna de Fraturas/efeitos adversos , Fixação Interna de Fraturas/instrumentação , Consolidação da Fratura , Humanos , Pessoa de Meia-Idade , Procedimentos Cirúrgicos Minimamente Invasivos/efeitos adversos , Procedimentos Cirúrgicos Minimamente Invasivos/métodos , Resultado do Tratamento
12.
Clin Sports Med ; 39(3): 623-636, 2020 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-32446579

RESUMO

The elbow joint consists of the humeroulnar, humeroradial, and proximal radioulnar joints. Elbow stability is maintained by a combination of static and dynamic constraints. Elbow fractures are challenging to treat because the articular surfaces must be restored perfectly and associated soft tissue injuries must be recognized and appropriately managed. Most elbow fractures are best treated operatively with restoration of normal bony anatomy and rigid internal fixation and repair and/or reconstruction of the collateral ligaments. Advanced imaging, improved understanding of the complex anatomy of the elbow joint, and improved fixation techniques have contributed to improved elbow fracture outcomes.


Assuntos
Articulação do Cotovelo/lesões , Fixação Interna de Fraturas , Fraturas Ósseas/cirurgia , Redução Aberta , Placas Ósseas , Ligamentos Colaterais/lesões , Ligamentos Colaterais/cirurgia , Articulação do Cotovelo/anatomia & histologia , Articulação do Cotovelo/diagnóstico por imagem , Articulação do Cotovelo/cirurgia , Fixação Interna de Fraturas/instrumentação , Fixação Interna de Fraturas/métodos , Fraturas Ósseas/diagnóstico por imagem , Humanos , Fraturas do Úmero/diagnóstico por imagem , Fraturas do Úmero/cirurgia , Olécrano/lesões , Olécrano/cirurgia , Redução Aberta/instrumentação , Redução Aberta/métodos , Osteotomia , Fraturas do Rádio/diagnóstico por imagem , Fraturas do Rádio/cirurgia , Fraturas da Ulna/diagnóstico por imagem , Fraturas da Ulna/cirurgia
13.
Medicine (Baltimore) ; 99(16): e19780, 2020 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-32311986

RESUMO

Segmental fusion is not necessarily needed in treatment of thoracolumbar unstable burst fracture requiring surgery. Our objective was to report the results of follow-up for at least 10 years in patients with thoracolumbar unstable burst fracture requiring surgery in which fractured segment was healed following temporary posterior instrumentation without fusion, and in whom implants were subsequently removed.Retrospective Cohort Study.Nineteen patients in whom union of fractured vertebra was observed following surgery and in whom implants were removed within an average 12.2 months, and who could be followed up for at least 10 years, were enrolled.At the last follow-up, we evaluated the segmental motions, anterior body height ratio, progress of further kyphotic deformity, Oswestry Disability Index, Rolland Morris Disability Questionnaire and Short Form 36.Results: The follow-up period after implant removal surgery was 151 months on average. The local kyphotic angle was 26.89 ±â€Š6.08 degrees at the time of injury and 10.11 ±â€Š2.22 degrees at the last follow-up. The anterior body height ratio was 0.54 ±â€Š0.16 at the time of injury and 0.89 ±â€Š0.05 at the last follow-up. Thus, the fractured vertebra was significantly reduced after surgery and maintained till last follow-up. The segmental motion was 9.84 ±â€Š3.03, Oswestry Disability Index was 7.95 ±â€Š7.38, Rolland Morris Disability Questionnaire was 2.17 ±â€Š2.67, short form 36 Physical Component Score was 77.50 ±â€Š16.61, and short form 36 Mental Component Score was 79.21 ±â€Š13.32 at last follow-up.We conducted at least 10-year follow-up and found that temporary posterior instrumentation without fusion should be considered one of the useful alternative treatments for thoracolumbar unstable burst fracture in place of the traditional posterior instrumentation and fusion.


Assuntos
Fixação Interna de Fraturas/instrumentação , Vértebras Lombares/cirurgia , Fraturas da Coluna Vertebral/cirurgia , Vértebras Torácicas/cirurgia , Adolescente , Adulto , Feminino , Seguimentos , Humanos , Vértebras Lombares/diagnóstico por imagem , Masculino , Pessoa de Meia-Idade , Qualidade de Vida , Radiografia , Recuperação de Função Fisiológica , Estudos Retrospectivos , Fraturas da Coluna Vertebral/diagnóstico por imagem , Vértebras Torácicas/diagnóstico por imagem , Adulto Jovem
14.
Medicine (Baltimore) ; 99(17): e19861, 2020 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-32332646

RESUMO

The best treatment for medial humeral epicondyle fractures in children has been debated. In case of incarceration of the epicondylar fragment, particularly after elbow dislocation, several materials are used for fixation, including Kirschner wires (K-wires), metallic compression screws, tension band wire, and suture anchors. Herein, we introduce a new fixation material: the absorbable self-reinforced polylactide (SR-PLA) pin.The aim of the study was to prove the feasibility of a new fixation material (absorbable SR-PLA pins) for the treatment of medial epicondyle fracture in children.Thirty-two patients who underwent surgery in our hospital from August 2007 to January 2012 were retrospectively analyzed. The patients were divided into group A (K-wires) and group B (absorbable SR-PLA pin). Group A comprised 11 males and 4 females, aged 8 to 14 years (average, 12.6 years), with 12 patients with elbow dislocation. Group B comprised 13 males and 4 females, aged 7 to 15 years (average, 11.8 years), with 13 patients with elbow dislocation. The same approach was used for all patients by the same team of surgeons, and all the patients were followed up for over 12 months. In all patients, rehabilitation training was started after 3 weeks. The Broberg and Morrey elbow scale was used to evaluate elbow function at follow-up.Four patients from group A developed pin-track infections that gradually resolved after removal of the K-wires, whereas no infections occurred in group B. One patient refractured her humerus after K-wire removal. Using the Broberg and Morrey elbow scale, outcomes in group A were classified as excellent in 5 patients (33.33%), good in 7 patients (46.67%), fair in 2 patients (13.33%), and poor in 1 (0.07%). Group B outcomes were scored as excellent in 12 patients (70.58%), good in 4 (23.53%), and fair in 1 (0.06%) and no patient (0.00%) had a poor outcome. The average Broberg and Morrey score for group A was significantly lower than that for group B (83.27 ±â€Š7.02 vs 95.21 ±â€Š5.04; P = .0238).Absorbable SR-PLA pins can be safely used for medial epicondyle fractures in children. Our results indicate that SR-PLA pins are associated with better short-term functional outcome than K-wires.Level of evidence: III.


Assuntos
Implantes Absorvíveis , Pinos Ortopédicos , Fixação Interna de Fraturas/instrumentação , Fraturas do Úmero/cirurgia , Poliésteres , Adolescente , Criança , Estudos de Viabilidade , Feminino , Seguimentos , Fratura-Luxação/cirurgia , Fixação Interna de Fraturas/métodos , Humanos , Masculino , Recuperação de Função Fisiológica , Estudos Retrospectivos
16.
Adv Clin Exp Med ; 29(4): 459-468, 2020 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-32348038

RESUMO

BACKGROUND: Three-dimensional (3D) printing of an acetabular wing-plate is a new minimally invasive surgical technique for complex acetabular fractures. OBJECTIVES: To investigate the biomechanical stability of 3D printing acetabular wing-plates. The results were compared with 2 conventional fixation systems. MATERIAL AND METHODS: Eighteen fresh frozen cadaveric pelvises with both column fractures were randomly divided to 3 groups: A - iliosciatic plates fixation system; B - 3D printing plates; C - 2 parallel reconstruction plates fixation system. These constructions were loaded onto a biomechanical testing machine. Longitudinal displacement and stiffness values of the constructs were measured to estimate their stability. RESULTS: When the load force reached 700 N, Group A was superior to Group B in the longitudinal displacement of point 1 (p > 0.05). The longitudinal displacement of point 2 showed no significant differences among Groups A, B and C, and the displacement of the fracture line over point 3 showed no significant differences between Groups A and B (p > 0.05). The axial stiffness of Groups A, B and C were 122.4800 ±8.8480 N/mm, 168.4830 ±14.8091 N/mm and 83.1300 ±3.8091 N/mm, respectively. Group B was significantly stiffer than A and C (p < 0.05). Loads at failure of internal fixation were 1378.83 ±34.383 N, 1516.83 ±30.896 N and 1351.00 ±26.046 N for Groups A, B and C, respectively. Group B was significantly superior to Groups A and C (p > 0.05). CONCLUSIONS: Customized 3D printing acetabular-wing plates provide stability for acetabular fractures compared to intraspecific buttressing fixation.


Assuntos
Acetábulo/diagnóstico por imagem , Acetábulo/cirurgia , Placas Ósseas , Parafusos Ósseos , Fixação Interna de Fraturas/métodos , Fraturas Ósseas/cirurgia , Impressão Tridimensional , Acetábulo/lesões , Fenômenos Biomecânicos , Fêmur/fisiopatologia , Fêmur/cirurgia , Fixação Interna de Fraturas/instrumentação , Fraturas Ósseas/diagnóstico por imagem , Humanos , Imageamento Tridimensional , Resultado do Tratamento , Suporte de Carga
17.
World Neurosurg ; 139: 330-336, 2020 07.
Artigo em Inglês | MEDLINE | ID: mdl-32348894

RESUMO

OBJECTIVE: We sought to evaluate the feasibility of temporary bridge occipitocervical fixation temporary bridge occipitocervical fixation (T-BOCF) for comminuted atlantoaxial fractures. METHODS: A 57-year-old man presented with multiple trauma including a comminuted, undisplaced atlantoaxial fracture; subdural hemorrhage; skull base fracture; scalp laceration; right second finger tendon injury; and right distal femur open fracture. T-BOCF was performed to preserve neck motion while providing rigid stability to atlantoaxial fracture. Occipital plate and bilateral lateral mass screws were inserted at C3, C4, and C5, avoiding the fracture site; this was followed by rod connection without fusion. The screw-rod construct was removed after confirmation of bone union in the fracture site 12 months after the initial operation. RESULTS: Computed tomography performed at 12 months after the operation demonstrated solid bone union. Dynamic radiographs taken 12 months after implant removal demonstrated a flexion-extension range of motion of 16 degrees at C0‒C2 and 19.8 degrees at C2‒C7. The total flexion-extension range of motion was 35.8 degrees. CONCLUSIONS: T-BOCF is a viable option for treatment of comminuted, undisplaced atlantoaxial fractures. The technique is easier than direct C1‒C2 fusion and can avoid complications associated with occipitocervical fusion or C1‒C2 screw fixation. The blood supply to the fracture site is preserved by avoiding subperiosteal stripping, and semispinalis cervicis insertion at the C2 spinous process is also circumvented. Furthermore, neck motion is preserved after implant removal.


Assuntos
Articulação Atlantoaxial/lesões , Articulação Atlantoaxial/cirurgia , Fixação Interna de Fraturas/métodos , Fraturas da Coluna Vertebral/cirurgia , Fixação Interna de Fraturas/instrumentação , Humanos , Masculino , Pessoa de Meia-Idade
19.
Orthop Clin North Am ; 51(2): 189-205, 2020 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-32138857

RESUMO

Hip fractures are of great interest worldwide as the geriatric population continues to increase rapidly. Currently, surgeons prefer to use cephalomedullary nail for internal fixation of pertrochanteric/intertrochanteric fractures. This article summarizes 10 concepts in hip fracture treatment over the past 20 years, including fracture line mapping, proximal lateral wall and anterior cortex, posteromedial lesser trochanter-calcar fragment, anteromedial cortex support reduction, changes of fracture reduction after sliding and secondary stability, nail entry point and wedge-open deformity, tip-apex distance and calcar-referenced tip-apex distance, femoral anterior bowing and nail modification, long nails for wide medullary canal and large posterior coronal fragment, and postoperative stability score.


Assuntos
Fixação Interna de Fraturas/métodos , Fraturas do Quadril/cirurgia , Ásia , Fixação de Fratura , Fixação Interna de Fraturas/educação , Fixação Interna de Fraturas/instrumentação , Fraturas do Quadril/diagnóstico por imagem , Humanos
20.
J Vasc Interv Radiol ; 31(4): 649-658.e1, 2020 04.
Artigo em Inglês | MEDLINE | ID: mdl-32139256

RESUMO

PURPOSE: To assess early outcome, safety, and complications of an alternative to open surgical treatments of osteolytic lesions in periarticular load-bearing bones. MATERIALS AND METHODS: A single-center, prospective clinical cohort study of 26 lesions in 23 consecutive patients with painful osteolytic skeletal lesions was performed. Patients were followed for an average of 7 mo (1-18 mo). Lesions were targeted from the most intact bone via minimally invasive percutaneous approach for stable anchorage of internal fixation screws using fluoroscopic guidance. Cannulated screws served as universal portals for ablation, balloon osteoplasty, and delivery of bone cement in addition to internal fixation for cement anchoring and prophylactic stabilization of uninvolved bone. RESULTS: There were 19 osteolytic lesions in the pelvis, 4 in the proximal femur, 2 in the proximal tibia, and 1 in the calcaneus. All defects were associated with severe pain or fractures. There were no conversions to open surgery and no infection or bleeding requiring transfusion, embolization, or additional procedures. There was significant improvement in visual analogue scale (VAS) pain score from 8.32 ± 1.70 to 2.36 ± 2.23, combined pain and functional ambulation score from 4.48 ± 2.84 to 7.28 ± 2.76, and Musculoskeletal Tumor Society score from 45% to 68% (P < .05). CONCLUSIONS: Ablation, osteoplasty, reinforcement, and internal fixation is a safe and effective minimally invasive percutaneous image-guided treatment option for functional improvement or palliation of painful osteolytic lesions in the pelvis and periarticular loadbearing bones.


Assuntos
Técnicas de Ablação , Cimentos para Ossos/uso terapêutico , Neoplasias Ósseas/cirurgia , Calcâneo/cirurgia , Cementoplastia , Fêmur/cirurgia , Fixação Interna de Fraturas , Osteólise/cirurgia , Ossos Pélvicos/cirurgia , Tíbia/cirurgia , Adulto , Idoso , Idoso de 80 Anos ou mais , Cimentos para Ossos/efeitos adversos , Neoplasias Ósseas/diagnóstico por imagem , Neoplasias Ósseas/fisiopatologia , Remodelação Óssea , Parafusos Ósseos , Calcâneo/diagnóstico por imagem , Calcâneo/fisiopatologia , Cementoplastia/efeitos adversos , Feminino , Neoplasias Femorais/diagnóstico por imagem , Neoplasias Femorais/fisiopatologia , Neoplasias Femorais/cirurgia , Fêmur/diagnóstico por imagem , Fêmur/fisiopatologia , Fixação Interna de Fraturas/efeitos adversos , Fixação Interna de Fraturas/instrumentação , Humanos , Masculino , Pessoa de Meia-Idade , Osteólise/diagnóstico por imagem , Osteólise/fisiopatologia , Ossos Pélvicos/diagnóstico por imagem , Ossos Pélvicos/fisiopatologia , Complicações Pós-Operatórias/etiologia , Estudos Prospectivos , Recuperação de Função Fisiológica , Tíbia/diagnóstico por imagem , Tíbia/fisiopatologia , Fatores de Tempo , Resultado do Tratamento , Suporte de Carga
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