- Rio De Janeiro, Rio de Janeiro, Brazil
OBJECTIVE: to assess the reliability of the inclination angle and anteversion of acetabular cup component in patients with idiopatic osteoarthritis of the hip, aseptic necrosis and hip neck fracture using trigonometric formula and plain... more
OBJECTIVE: to assess the reliability of the inclination angle and anteversion of acetabular cup component in patients with idiopatic osteoarthritis of the hip, aseptic necrosis and hip neck fracture using trigonometric formula and plain radiographs. METHODS: 66 patients underwent cemented total arthroplasty of 72 hips. The inclination of acetabular component was measured using plain radiograph. The acetabular component anteversion was measured using trigonometric formula. RESULTS: it was observed that, in the osteoarthritic hips, hip neck fracture and aseptic necrosis, the degree of agreement was highly significant (p < 0.0001), in the measurements of anteversion and inclination angles, among the three assessments, from intra as well as inter-observers. All the agreement pairs were of excellent degree (ICC > 0.80). CONCLUSION: using plain radiographs and trigonometric formula, the method resulted to be highly accurate and reliable. Besides being easy to be calculated. No signi...
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Objective The primary aim of this study was to survey current practices and preferences behind internal fixation of trochanteric femoral fractures among Brazilian orthopedic surgeons. The secondary aim was to identify the main reason for... more
Objective The primary aim of this study was to survey current practices and preferences behind internal fixation of trochanteric femoral fractures among Brazilian orthopedic surgeons. The secondary aim was to identify the main reason for these preferences. Methods A survey containing 20 images of trochanteric fractures of the femur was presented to a group of 62 orthopedists, all members of the Brazilian Society of Orthopedics and Traumatology (SBOT). The first part of the questionnaire was created to identify the surgeons' degree of professional experience, type of practice, and areas of greatest interest and performance within the specialty. The second part of the questionnaire contained options for fixating different trochanteric fracture patterns in the femur for participants to choose, along with the main reason for their decision. Statistical analysis was descriptive and profiled the surgeons' major area of interest, treatment option, and the main reason for their ther...
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Research Interests: Nursing, Fracture, Treatment, Pathophysiology, Injury, and 15 moreAnimals, Male, Statistical Significance, Animal Model, Fracture Healing, Consolidation, Clinical Sciences, Rating Scale, Rats, Public health systems and services research, Rat, PIROXICAM, Biological activity, Light microscopy, and Control Group
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OBJETIVO: Avaliar se a cirurgia auxiliada por navegação oferece vantagens sobre a técnica convencional, foi desenvolvido um estudo randômico, prospectivo e comparativo analisando o posicionamento do implante, alinhamento do membro, tempo... more
OBJETIVO: Avaliar se a cirurgia auxiliada por navegação oferece vantagens sobre a técnica convencional, foi desenvolvido um estudo randômico, prospectivo e comparativo analisando o posicionamento do implante, alinhamento do membro, tempo de cirurgia, perda sanguínea e reabilitação funcional. MÉTODOS: Foram estudados 39 pacientes submetidos a 42 Artroplastias Totais de Joelho. No grupo 1 (n=21) a cirurgia foi navegada e no grupo 2 (n=21) convencional. Os pacientes foram avaliados com radiografia panorâmica de membros inferiores, tomografia computadorizada e pelo Knee Society Score (KSS) no pré-operatório e com três meses de pós-operatório. O tempo de cirurgia e a perda sanguínea pós-operatória também foram avaliados. RESULTADOS: O tempo de cirurgia foi maior no grupo 1. Não houve diferença significativa quanto à perda sanguínea e ao KSS. Houve maior proximidade dos três graus de rotação externa e dos cinco graus de inclinação coronal nos pacientes do grupo 2. O eixo mecânico aproximo...
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Objective To evaluate the biomechanical behavior of a metaphyseal stem specifically designed for the fixation of Pauwels type-III femoral neck fractures using finite-element analysis. Methods Three different constructions were studied:... more
Objective To evaluate the biomechanical behavior of a metaphyseal stem specifically designed for the fixation of Pauwels type-III femoral neck fractures using finite-element analysis. Methods Three different constructions were studied: the dynamic hip screw with a superior anti-rotation screw (DHS + ARS), multiple cannulated screws in an inverted triangle configuration (ASNIS), and the Metaphyseal Nailing System (MNS), a new implant developed by the authors. Vertical and total displacement, localized and total maximum and minimum principal, and the Von Mises peak stresses were evaluated. Results Results are shown for the DHS + ARS, ASNIS, and MNS models, respectively. Vertical displacement (mm) was 1.49, 3.63, and 1.90; total displacement (mm) was: 5.33, 6.02, and 6.30; localized maximum principal (Mpa) was: 2.77, 4.5, and 1.7; Total maximum principal (Mpa) was: 126, 223, and 531; localized minimum principal (Mpa) was: -1.8, -3.15, and -0.39; total minimum (Mpa) was: -121, -449, and -245; and Von Mises peak stress (MPA) was: 315.5, 326.1, and 286.0. Conclusion The present FEM study showed that the MNS device increases general stresses and reduces localized stresses, when compared to the DHS + ARS and ASNIS constructions used to fix Pauwels type-III femoral neck fracture in synthetic models. In this sense, the MNS showed a low fracture focus shift, conducive to the consolidation environment. The significant reduction in the maximum principal stress, allows to affirm that the main deforming force, the shear, in this fracture pattern, was considerably reduced and the low value of Von Mises obtained, consistent with an implant capable of making an effective load sharing.
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O objetivo desta pesquisa foi estudar o efeito do tenoxicam, uma droga antiinflamatoria nao-esteroide (AINE), no processo de consolidacao de fraturas em tibia de ratos. Os animais foram divididos aleatoriamente em tres grupos (I, II,... more
O objetivo desta pesquisa foi estudar o efeito do tenoxicam, uma droga antiinflamatoria nao-esteroide (AINE), no processo de consolidacao de fraturas em tibia de ratos. Os animais foram divididos aleatoriamente em tres grupos (I, II, III), um dos quais utilizado como controle. No grupo controle (n = 12 animais) foi administrado soro fisiologico a 0,9 por cento por via intramuscular, enquanto no grupo 11, com 12 animais, administraram-se 10 miligramas/quilograma/dia do AINE por via intramuscular; no grupo III (n = 4 animais) foram administrados 20 miligramas/quilograma/dia da droga. O inicio da administracao das substâncias se deu aproximadamente duas horas apos a producao da fratura. A formacao do calo osseo foi avaliada histologicamente por microscopia de luz, corando-se as pecas com hematoxilina-eosina, picromallory e alcian blue pH 2,5-safranina. O calo osseo foi estudado histomorfologicamente ao termino da pesquisa, segundo escore qualitativo de maturidade. Os resultados indicar...
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Traditional nonsteroidal anti-inflammatory drugs (NSAD) have been demonstrated to delay the process of bone healing in several studies. However, the authors have not found publications reporting the effects the new COxV. GIORDANO, J.... more
Traditional nonsteroidal anti-inflammatory drugs (NSAD) have been demonstrated to delay the process of bone healing in several studies. However, the authors have not found publications reporting the effects the new COxV. GIORDANO, J. FIDELIS, M. GIORDANO, N.P. AMARAL, A. SAYÃO, R. FREDIANI, C.E. FRANLIN, M.I. APFEL, J.S.A. BASTOS & R.G. MENDONÇA 202 Rev Bras Ortop _ Vol. 38, No 4 – Abril, 2003 das novas drogas AINEs inibidoras seletivas da COx-2. O objetivo dos autores com o presente estudo foi analisar o efeito do tenoxicam e do meloxicam no processo de consolidação de fraturas em tíbia de ratos. Os animais foram divididos aleatoriamente em três grupos. No grupo 1 (tenoxicam, N = 13 animais) administraram-se 10mg/kg/dia de tenoxicam 20mg por via intramuscular (0,2ml/dia). O grupo 2 (meloxicam, n = 13 animais) recebeu 0,12mg/kg/dia de meloxicam 15mg por via intramuscular (0,25ml/dia). No grupo 3 (controle, n = 10 animais) foi administrado soro fisiológico a 0,9% por via intramuscula...
The authors report a case of direct compression of the medial branch of the deep peroneal nerve by an os intermetatarseum in a 52-year-old female patient who was referred to their Institution because of pain over the dorsum of her left... more
The authors report a case of direct compression of the medial branch of the deep peroneal nerve by an os intermetatarseum in a 52-year-old female patient who was referred to their Institution because of pain over the dorsum of her left foot associated with paraesthesias in the first web space. Examination disclosed a positive Tinel sign over the dorsal aspect of the first metatarsal bone. Plain radiographs revealed a small, irregular accessory ossicle on the dorsum of the left foot, between the medial cuneiform and first and second metatarsals. At operation, the os intermetatarseum was found to impinge on the medical branch of the deep peroneal nerve. Excision of the os intermetatarseum and nerve decompression was performed. After four years, the patient has normal function and is completely relieved of her symptoms.
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Objective The aim of the present study was to evaluate the practices and preferences of Brazilian orthopedic surgeons for the treatment of femoral neck fractures in middle-aged patients. Methods A survey containing 10 images of femoral... more
Objective The aim of the present study was to evaluate the practices and preferences of Brazilian orthopedic surgeons for the treatment of femoral neck fractures in middle-aged patients. Methods A survey containing 10 images of femoral neck fractures was sent to a group of 100 orthopedic surgeons, all of them members of the Brazilian Society of Orthopedics and Traumatology. The questionnaire asked the treatment option for cases of nondisplaced and displaced fractures of the femoral neck in middle-aged patients, that is, those between 50 and 69 years old. Descriptive and inferential statistical analyzes were performed using the chi-squared (χ2) and the Fisher exact tests. The level of significance was 5%. Results The survey was answered by 78% of the orthopedic surgeons invited to participate in the study. There was no significant difference in the treatment method distribution between generalists and specialists ( p = 0.16) in the sample of nondisplaced femoral neck fractures. T...
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The aim of this study was to evaluate the neuromuscular structures at risk during modified anterior minimally invasive plating osteosynthesis technique (Belangero–Livani) for humeral shaft fractures. Eight fresh-frozen human specimens... more
The aim of this study was to evaluate the neuromuscular structures at risk during modified anterior minimally invasive plating osteosynthesis technique (Belangero–Livani) for humeral shaft fractures. Eight fresh-frozen human specimens ranging from 38 to 82 years old were used. Specimens were positioned supine with the shoulder in 70° abduction and the forearm in full supination. Anterior minimally invasive plating osteosynthesis technique according to Belangero–Livani technique was performed in each specimen. Under radioscopic control, the plate was introduced in retrograde fashion through the subbrachialis path. Anatomical structures were inspected and different anatomical parameters were measured after dissection at the end of the surgical procedures. Measurements were performed using a high digital caliper. Statistical analysis was performed using the Pearson’s correlation coefficient test. A p value of < 0.05 was used to define statistical significance. There were no macroscopic lesions of myotendinous or neurovascular structures in any specimen. The mean distance between the radial nerve to the distal lateral end of the plate was 8.63 mm (range 4.14–13.83 mm). The mean total length of the humerus was 328.59 mm. We found a significant direct correlation between the total length of the humerus and both specimen height and weight. The modified Belangero–Livani anterior MIPO technique for humeral shaft fractures performed in retrograde fashion is safe and useful, without major risk to the soft tissue of the anterior compartment of the arm, including the radial nerve in the lateral intermuscular septum. Intraoperative dissection, avoiding deep lateral retraction on the distal approach, minimizes the risk of radial nerve damage. Strict surgical planning and appreciation for the anatomic landmarks can reduce the risk of damage to neuromuscular structures. Level IV; Case series with no comparison group; Treatment study
Purpose This study aims to present a novel classification system and a rationale for treatment of medial Hoffa fractures. Methods We developed a simple comprehensive classification system for medial Hoffa fractures based on the fragment... more
Purpose This study aims to present a novel classification system and a rationale for treatment of medial Hoffa fractures. Methods We developed a simple comprehensive classification system for medial Hoffa fractures based on the fragment size and presence of fracture comminution. Furthermore, we propose a treatment algorithm based on two pillars: our case series of nine patients presenting medial Hoffa fractures and the best evidence-based pertinent literature. Fracture healing, range of motion, function, and complications were evaluated after a minimum of 6 months follow-up. Results All fractures healed with no loss of reduction. Knee flexion ranged from 90 – 130° (mean 110°, standard deviation 15.2). Knee extension ranged from 0 – 10° (mean 1°, standard deviation 3.3). Knee function according to the Lysholm score ranged from 74 – 96 points (mean 85, standard deviation 6.3). There were no complications such as infection, fixation failure, or medial femoral condyle osteonecrosis. One...
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Resumo Objetivo O objetivo do presente estudo foi avaliar as práticas e preferências dos cirurgiões ortopédicos brasileiros para o tratamento da fratura do colo do fêmur no paciente de meia idade. Métodos Foi elaborado um questionário... more
Resumo Objetivo O objetivo do presente estudo foi avaliar as práticas e preferências dos cirurgiões ortopédicos brasileiros para o tratamento da fratura do colo do fêmur no paciente de meia idade. Métodos Foi elaborado um questionário contendo 10 imagens de fraturas do colo do fêmur enviado a um grupo de 100 ortopedistas, todos membros titulares da Sociedade Brasileira de Ortopedia e Traumatologia. No questionário, foi perguntada a opção de tratamento para casos de fratura não desviada e desviada do colo do fêmur em pacientes de meia idade, caracterizados como aqueles com idades entre 50 e 69 anos. Foram realizadas análises estatísticas descritiva e inferencial, pelos testes de qui-quadrado (χ2) e exato de Fisher. O critério de determinação de significância adotado foi o nível de 5%. Resultados O questionário foi respondido por 78% dos ortopedistas convidados a participar do presente estudo. Observou-se que não existe diferença significativa na distribuição do método de tratamento e...
Dysplasia epiphysealis hemimelica is a rare osteocartilaginous overgrowth syndrome of bone epiphysis, mostly encountered in the lower limbs of immature skeleton patients. We report a case of proximal humerus presentation in an adult male,... more
Dysplasia epiphysealis hemimelica is a rare osteocartilaginous overgrowth syndrome of bone epiphysis, mostly encountered in the lower limbs of immature skeleton patients. We report a case of proximal humerus presentation in an adult male, with neither articular involvement nor clinical dysfunction. This case highlights the importance of stratification into intra- and extra-articular lesions, as this distinction ultimately influences both symptoms and treatment outcome. In addition, the case highlights the importance of specific imaging modalities, such as CT and MR images, which provide excellent anatomic location of the lesion, adequate extension of cartilaginous components, exact status of articular cartilage, and accurate assessment of neighboring structures, such as vessels, nerves, ligaments, tendons, and muscles. The imaging features are described, the relevant literature is reviewed, and salient features are discussed.
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Acral metastases in the hand are exceedingly rare. We present the unusual case of a metastatic tumor of the hand of unknown primary site in a 77-year-old man with no known cancer history. The patient presented with pain and swelling in... more
Acral metastases in the hand are exceedingly rare. We present the unusual case of a metastatic tumor of the hand of unknown primary site in a 77-year-old man with no known cancer history. The patient presented with pain and swelling in the tip of the left ring finger, which had previously been diagnosed as gout at another clinic. Laboratory tests, including white blood cell count, erythrocyte sedimentation rate/C-reactive protein, and uric acid were all within normal limits. Excisional biopsy was taken by amputation of the distal phalanx of the left ring finger through the distal third of the middle phalanx. Pathology confirmed the presence of a moderately differentiated adenocarcinoma of unknown primary site. Roentgenographic examination of the chest revealed no pathologic findings. The patient refused further investigation and adequate treatment. He died 4 months later. The current description confirms the rarity of metastatic malignancy of the hand and its poor prognosis.
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The aim of our study is to compare the mechanical resistance of two screw configurations in fixating type II Pauwels femoral neck fractures. Fifteen synthetic models of femur bones in young adults were divided into three equal groups:... more
The aim of our study is to compare the mechanical resistance of two screw configurations in fixating type II Pauwels femoral neck fractures. Fifteen synthetic models of femur bones in young adults were divided into three equal groups: intact (G1), models with fixation of a 5.0-mm failure zone created in the posterior cortex of the femoral neck using an L-shaped screw arrangement (G2, n = 5), and models with an identical failure zone fixated using an inverted triangle assembly (G3, n = 5). Model strength (axial loading) and rotational deviation of the fragments were load-tested until a 5.0-mm displacement was reached (step 1) and then until failure, here considered as 10.0 mm displacement in G2 and G3 or femoral neck fracture in G1 (step 2). In step 1, the mean resistance in G1 was 1593 N (standard deviation [SD] of 62 N); this value in G2 was 1261 N (SD 49 N) and in G3 was 1074 N (SD 153 N). During step 2, the value for G1 was 2247 N (SD 84 N), for G2 was 1895 N (SD 69 N), and for G...
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Resumo: Medial swivel dislocation of the talus is an uncommon, complex injury. Accurate initial assessment and diagnosis are as critical, as good results can be expected after early recognition and prompt reduction of the lesions. The aim... more
Resumo: Medial swivel dislocation of the talus is an uncommon, complex injury. Accurate initial assessment and diagnosis are as critical, as good results can be expected after early recognition and prompt reduction of the lesions. The aim of the current paper is to report a ...
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RESUMO No presente trabalho, é apresentado um caso de osteoma osteóide (OO) localizado na metáfise proximal da tíbia em uma paciente com dez anos de idade. Os autores descrevem o caso eo tratamento instituído, assim como apresentam os... more
RESUMO No presente trabalho, é apresentado um caso de osteoma osteóide (OO) localizado na metáfise proximal da tíbia em uma paciente com dez anos de idade. Os autores descrevem o caso eo tratamento instituído, assim como apresentam os métodos ...
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Os autores realizaram estudo retrospectivo de 31 pa-cientes que apresentavam 52 dedos em gatilho primários, visando avaliar a eficácia do tratamento com injeção lo-cal de corticosteróide associado a anestésico local sem adrenalina. Foram... more
Os autores realizaram estudo retrospectivo de 31 pa-cientes que apresentavam 52 dedos em gatilho primários, visando avaliar a eficácia do tratamento com injeção lo-cal de corticosteróide associado a anestésico local sem adrenalina. Foram aplicadas de uma a três injeções ao ...
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The authors report a case of direct compression of the medial branch of the deep peroneal nerve by an os intermetatarseum in a 52-year-old female patient who was referred to their Institution because of pain over the dorsum of her left... more
The authors report a case of direct compression of the medial branch of the deep peroneal nerve by an os intermetatarseum in a 52-year-old female patient who was referred to their Institution because of pain over the dorsum of her left foot associated with paraesthesias in the first web space. Examination disclosed a positive Tinel sign over the dorsal aspect of the first metatarsal bone. Plain radiographs revealed a small, irregular accessory ossicle on the dorsum of the left foot, between the medial cuneiform and first and second metatarsals. At operation, the os intermetatarseum was found to impinge on the medical branch of the deep peroneal nerve. Excision of the os intermetatarseum and nerve decompression was performed. After four years, the patient has normal function and is completely relieved of her symptoms.
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RESUMO Objetivo: Investigar o comportamento mecânico da com-binação de anestésico local e cimento ósseo in vitro. Métodos: Foram comparados dois cimentos ortopédicos (Simplex® e Biomecânica®) e duas drogas anestésicas locais de largo uso... more
RESUMO Objetivo: Investigar o comportamento mecânico da com-binação de anestésico local e cimento ósseo in vitro. Métodos: Foram comparados dois cimentos ortopédicos (Simplex® e Biomecânica®) e duas drogas anestésicas locais de largo uso na clínica ...
A 42-year-old man presented with synovial osteochondromatosis (SO) of the retrocalcaneal bursa with intraosseous lesions in the calcaneum, leading to significant pain and consequent disability. Simple x-rays, computed tomography, and... more
A 42-year-old man presented with synovial osteochondromatosis (SO) of the retrocalcaneal bursa with intraosseous lesions in the calcaneum, leading to significant pain and consequent disability. Simple x-rays, computed tomography, and magnetic resonance imaging were performed preoperatively. The patient has remained asymptomatic, clinically and radiographically, without recurrent lesions for 18 months postoperatively.
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RESUMO Os autores descrevem os resultados do tratamento de 15 pacientes (14 do sexo masculino e um do feminino, com idade média de 33, 3 anos) com fraturas viciosamente consolidadas da tíbia, utilizando a metodologia de Ilizarov, com... more
RESUMO Os autores descrevem os resultados do tratamento de 15 pacientes (14 do sexo masculino e um do feminino, com idade média de 33, 3 anos) com fraturas viciosamente consolidadas da tíbia, utilizando a metodologia de Ilizarov, com correção gradual das ...
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RESUMO Objetivo: Investigar o comportamento mecânico da com-binação de anestésico local e cimento ósseo in vitro. Métodos: Foram comparados dois cimentos ortopédicos (Simplex® e Biomecânica®) e duas drogas anestésicas locais de largo uso... more
RESUMO Objetivo: Investigar o comportamento mecânico da com-binação de anestésico local e cimento ósseo in vitro. Métodos: Foram comparados dois cimentos ortopédicos (Simplex® e Biomecânica®) e duas drogas anestésicas locais de largo uso na clínica ...
Resumo: Os autores apresentam uma revisão dos aspectos relacionados à fratura por estresse, como fatores de risco, dificuldades diagnósticas, diagnósticos diferenciais e métodos de tratamento, ressaltando a necessidade de se ter um alto... more
Resumo: Os autores apresentam uma revisão dos aspectos relacionados à fratura por estresse, como fatores de risco, dificuldades diagnósticas, diagnósticos diferenciais e métodos de tratamento, ressaltando a necessidade de se ter um alto grau de suspeita ...
* From Department of Orthopedics and Traumatology, Faculdade de Me-dicina, and Ambulatório de Medicina e Cirurgia do Pé, Serviço de Trau-mato-Ortopedia, Hospital Universitário Clementino Fraga Filho (HUCFF), Universidade Federal do Rio de... more
* From Department of Orthopedics and Traumatology, Faculdade de Me-dicina, and Ambulatório de Medicina e Cirurgia do Pé, Serviço de Trau-mato-Ortopedia, Hospital Universitário Clementino Fraga Filho (HUCFF), Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, ...
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Resumo: O objetivo desta pesquisa foi estudar o efeito do tenoxicam, uma droga antiinflamatória não-esteróide (AINE), no processo de consolidação de fraturas em tíbia de ratos. Os animais foram divididos aleatoriamente em três grupos (I,... more
Resumo: O objetivo desta pesquisa foi estudar o efeito do tenoxicam, uma droga antiinflamatória não-esteróide (AINE), no processo de consolidação de fraturas em tíbia de ratos. Os animais foram divididos aleatoriamente em três grupos (I, II, III), um dos quais ...
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RESUMO A síndrome do impacto subacromial é um distúrbio cada vez mais observado na prática clínica. Dentre as modalidades de tratamento, o fisioterápico é dos mais recomendados. Dessa forma, objetivou-se avaliar a eficácia do tratamento... more
RESUMO A síndrome do impacto subacromial é um distúrbio cada vez mais observado na prática clínica. Dentre as modalidades de tratamento, o fisioterápico é dos mais recomendados. Dessa forma, objetivou-se avaliar a eficácia do tratamento conservador fisioterápico da ...
The authors report a case of direct compression of the medial branch of the deep peroneal nerve by an os intermetatarseum in a 52-year-old female patient who was referred to their Institution because of pain over the dorsum of her left... more
The authors report a case of direct compression of the medial branch of the deep peroneal nerve by an os intermetatarseum in a 52-year-old female patient who was referred to their Institution because of pain over the dorsum of her left foot associated with para-esthesias in the first ...
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Purpose: To review our experience with 82 surgically treated displaced acetabular fractures over a 4-year period. Patients and Methods: Ninety-three consecutive displaced acetabular fractures were consecutively operated on at Level I... more
Purpose: To review our experience with 82 surgically treated displaced acetabular fractures over a 4-year period. Patients and Methods: Ninety-three consecutive displaced acetabular fractures were consecutively operated on at Level I Trauma Center from January 1, 2000 through December 31, 2003, and 82 were available for review with a minimum of 12-month follow-up. Clinical (Merle D'Aubigné modified by Matta et al.) and radiographic (Matta) outcomes were evaluated. Complications and secondary operative procedures were documented. Results: Anatomical reduction was achieved in 89% of the patients. At follow-up examination 12–60 months postoperatively (mean 32 months), clinical results were satisfactory in 65 patients (79.2% of the cases), with 14 excellent and 51 good results, and roentgenographic results were satisfactory in 70 patients (85.4% of the cases). Complications included a 12.2% incidence of sciatic nerve palsy (10 patients, two postoperative and eight posttraumatic), a 2.4% incidence of intraoperative vascular lesion (one external iliac artery and one external iliac vein), a 1.2% incidence of postoperative loss of reduction, a 1.2% incidence of infection, a 1.2% incidence of Brooker et al. class IV heterotopic ossification, a 2.4% incidence of posttraumatic osteoarthritis, and a 2.4% incidence of osteonecrosis of the femoral head. Conclusions: Operative treatment is an effective method for the management of displaced acetabular fractures. Clinical and roentgenographic results correlate closely with an anatomic reduction. Low complication rate can be expected if adequate preoperative assessment and planning is performed. Strategies to minimize the risk of thromboembolism and heterotopic ossification on the basis of mechanical pneumatic compression and antiinflammatory nonsteroidal drugs, respectively, are reliable techniques for these injuries.