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1.
Acta Orthop Belg ; 88(2): 342-346, 2022 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-36001841

RESUMEN

The aim of the study was to evaluate the clinical and radiological outcomes in a series of patients undergoing open wedge high tibial osteotomy (OWHTO) using tibial cancellous autograft harvested from the osteotomized medullary canal which is not reported in the literature before. Patients with medial compartment osteoarthritis were treated with OWHTO and tibial cancellous auto- grafting performed from the osteotomized medullary canal and used for bone void filling. Seventy patients (seventy-two knees) treated with OWHTO were analyzed. All patients started partial weight-bearing with crutches the day after surgery and full-weight bearing eight weeks after surgery, according to radiological evaluation. Fifty-seven women and 13 men with a mean age of 54.2±8.1 years were evaluated in this study. The mean correction angle was 8.4±2.5° (range: 5.3°-14.3°). The osteotomy sites of all patients were grafted with tibial cancellous autografts. In all patients bony union was detected after surgery. No implant failures or major complications were en- countered. Clinical and radiological findings revealed that bone void filling with the harvested autograft from the osteotomized medullary canal may be a satisfactory and reliable option in OWHTO.


Asunto(s)
Hueso Esponjoso , Osteoartritis de la Rodilla , Placas Óseas , Femenino , Humanos , Articulación de la Rodilla/cirugía , Masculino , Persona de Mediana Edad , Osteoartritis de la Rodilla/diagnóstico por imagen , Osteoartritis de la Rodilla/cirugía , Osteotomía , Estudios Retrospectivos , Tibia/cirugía
2.
J Biomech Eng ; 142(10)2020 10 01.
Artículo en Inglés | MEDLINE | ID: mdl-32451526

RESUMEN

The menisci play a vital role in the mechanical function of knee joint. Unfortunately, meniscal tears often occur. Meniscectomy is a surgical treatment for meniscal tears; however, mechanical changes in the knee joint after meniscectomy is a risk factor to osteoarthritis (OA). The objective of this study was to investigate the altered cartilage mechanics of different medial meniscectomies using a poromechanical model of the knee joint. The cartilaginous tissues were modeled as nonlinear fibril-reinforced porous materials with full saturation. The ligaments were considered as anisotropic hyperelastic and reinforced by a fibrillar collagen network. A compressive creep load of ¾ body weight was applied in full extension of the right knee during 200 s standing. Four finite element models were developed to simulate different meniscectomies of the joint using the intact model as the reference for comparison. The modeling results showed a higher load support in the lateral than medial compartment in the intact joint, and the difference in the load share between the compartments was augmented with medial meniscectomy. Similarly, the contact and fluid pressures were higher in the lateral compartment. On the other hand, the medial meniscus in the normal joint experienced more loading than the lateral one. Furthermore, the contact pressure distribution changed with creep, resulting in a load transfer between cartilage and meniscus within each compartment while the total load born by the compartment remained unchanged. This study has quantified the altered contact mechanics on the type and size of meniscectomies, which may be used to understand meniscal tear or support surgical decisions.


Asunto(s)
Análisis de Elementos Finitos , Meniscectomía , Cartílago Articular , Traumatismos de la Rodilla , Articulación de la Rodilla
3.
J Foot Ankle Surg ; 55(5): 965-70, 2016.
Artículo en Inglés | MEDLINE | ID: mdl-27338652

RESUMEN

The goal of the present study was to evaluate the semi-invasive "internal splinting" (SIIS) method for repair of Achilles tendon rupture relative to open repair with Krakow sutures. Efficacy was evaluated based on the clinical and functional outcomes, postoperative magnetic resonance imaging measurements, isokinetic results, and surgical complication rates. Functional measurements included the Thermann and American Orthopaedic Foot and Ankle Society (AOFAS) ankle scores, bilateral ankle dorsiflexion, and plantar flexion measurements. Magnetic resonance imaging was used to compare the bilateral length and thickness of each Achilles tendon. The isokinetic outcomes were evaluated using a Biodex System 3 dynamometer. Of the 45 patients meeting the inclusion criteria, 24 were treated by SIIS and 21 by the open Krackow suture technique. The mean follow-up time for all patients was 43.7 (range 6 to 116) months. In the SIIS group, patients returned to normal daily activities after 7.2 (range 6 to 8) weeks compared with 14.3 (range 12 to 15) weeks in the open surgery group. The AOFAS ankle scores were 93.5 (range 82 to 100) points in the open repair group and 96.2 (range 86 to 100) points in the SIIS group. The Thermann scores were 80.4 (range 53 to 91) points for the open repair group and 87.9 (range 81 to 100) points for the SIIS method. The mean Achilles length on the operated side measured using magnetic resonance imaging was 175.06 (range 110 to 224) mm and 177.76 (range 149 to 214) mm for the open surgery and SIIS groups, respectively. Sensory impairment in the territory of the sural nerve was identified in 1 patient immediately after SIIS surgery, although this defect had completely resolved within 12 months. SIIS yielded better outcomes relative to the open surgery group according to the isokinetic measurements. Taken together, these data indicate the SIIS method for Achilles tendon ruptures performed better in terms of both functional and objective outcomes compared with open surgery.


Asunto(s)
Tendón Calcáneo/lesiones , Procedimientos Ortopédicos/métodos , Técnicas de Sutura , Traumatismos de los Tendones/cirugía , Tendón Calcáneo/cirugía , Adulto , Femenino , Humanos , Imagen por Resonancia Magnética , Masculino , Persona de Mediana Edad , Procedimientos Ortopédicos/efectos adversos , Complicaciones Posoperatorias , Rango del Movimiento Articular , Recuperación de la Función , Rotura/cirugía , Traumatismos de los Tendones/diagnóstico por imagen , Resultado del Tratamiento
4.
Int Wound J ; 13(5): 843-7, 2016 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-25597628

RESUMEN

Although skin necrosis following total knee arthroplasty or revision total knee arthroplasty is rare, it may cause severe complications. Skin changes begin with superficial infections and may result in removal of the prosthesis. Treatment of skin necrosis is an important factor, which determines the prognosis of the prosthesis. Several techniques have been defined for sufficient closure. In this article, we present the case of a patient who was treated for skin necrosis that developed after knee revision arthroplasty, using serial debridement, convergence sutures and an intermittent vacuum-assisted closure device (KCI Inc., San Antonio, TX).


Asunto(s)
Artroplastia de Reemplazo de Rodilla/efectos adversos , Terapia de Presión Negativa para Heridas , Dehiscencia de la Herida Operatoria/terapia , Anciano , Desbridamiento , Femenino , Humanos , Necrosis , Reoperación , Dehiscencia de la Herida Operatoria/etiología , Dehiscencia de la Herida Operatoria/patología
5.
J Foot Ankle Surg ; 54(5): 782-6, 2015.
Artículo en Inglés | MEDLINE | ID: mdl-25736446

RESUMEN

Although pre- and postoperative imaging of Achilles tendon rupture (ATR) has been well documented, radiographic evaluations of postoperative intratendinous healing and microstructure are still lacking. Diffusion tensor imaging (DTI) is an innovative technique that offers a noninvasive method for describing the microstructure characteristics and organization of tissues. DTI was used in the present study for quantitative assessment of fiber continuity postoperatively in patients with acute ATR. The data from 16 patients with ATR from 2005 to 2012 were retrospectively analyzed. The microstructure of ART was evaluated using tendon fiber tracking, tendon continuity, fractional anisotropy, and apparent diffusion coefficient values by way of DTI. The distal and proximal portions were measured separately in both the ruptured and the healthy extremities of each patient. The mean patient age was 41.56 ± 8.49 (range 26 to 56) years. The median duration of follow-up was 21 (range 6 to 80) months. The tendon fractional anisotropy values of the ruptured Achilles tendon were significantly lower statistically than those of the normal side (p = .001). However, none of the differences between the 2 groups with respect to the distal and proximal apparent diffusion coefficient were statistically significant (p = .358 and p = .899, respectively). In addition, the fractional anisotropy and apparent diffusion coefficient measurements were not significantly different in the proximal and distal regions of the ruptured tendons compared with the healthy tendons. The present study used DTI and fiber tracking to demonstrate the radiologic properties of postoperative Achilles tendons with respect to trajectory and tendinous fiber continuity. Quantifying DTI and fiber tractography offers an innovative and effective tool that might be able to detect microstructural abnormalities not appreciable using conventional radiologic techniques.


Asunto(s)
Tendón Calcáneo/lesiones , Tendón Calcáneo/patología , Imagen de Difusión Tensora/métodos , Interpretación de Imagen Asistida por Computador , Traumatismos de los Tendones/cirugía , Tendón Calcáneo/cirugía , Adulto , Anisotropía , Estudios de Casos y Controles , Femenino , Estudios de Seguimiento , Humanos , Puntaje de Gravedad del Traumatismo , Masculino , Persona de Mediana Edad , Procedimientos Ortopédicos/métodos , Cuidados Posoperatorios/métodos , Control de Calidad , Valores de Referencia , Estudios Retrospectivos , Rotura/cirugía , Traumatismos de los Tendones/diagnóstico , Resultado del Tratamiento
6.
Orthop J Sports Med ; 12(3): 23259671241233321, 2024 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-38476161

RESUMEN

Background: Medial opening-wedge high tibial osteotomy (OWHTO) is a useful treatment option in patients with medial compartment osteoarthritis. Typically, the osteotomy site is filled with material such as autologous bone graft, allograft, or synthetic bone substitute. However, all these options have disadvantages. Purpose/Hypothesis: The purpose of this study was to describe tibial cortical autograft as an alternative to conventional graft options. It was hypothesized that the tibial rectangular cortical bone that is removed from the proximal medial cortical surface of the distal tibial fragment longitudinally could be a reliable option for recovery of the gap in the osteotomy area. Study Design: Cohort study; Level of evidence, 3. Methods: A total of 520 patients with medial compartment osteoarthritis who underwent OWHTO between June 2009 and March 2019 were retrospectively analyzed. Patients were divided into 3 groups according to the graft material used to fill the osteotomy site: allograft in group A, iliac crest autograft in group B, and tibial autograft in group C. Bone union, evaluated by radiographs performed at 2 weeks, 4 weeks, 2 months, 3 months, 6 months, and 1 year postoperatively, was defined as occurring when at least 50% of the gap site was bridged with callus. Clinical assessment was performed using the International Knee Documentation Committee (IKDC) and Lysholm scores. Results: Included were 122 patients: 40 patients in group A, 42 patients in group B, and 40 patients in group C. The mean correction was 13.87°± 3.58° in group A, 12.33°± 3.92° in group B, and 14.10°± 2.99° in group C. The mean time for radiological bone union was 6.95 ± 1.40 months in group A, 4.48 ± 1.02 months in group B, and 5.07 ± 1.70 months in group C. Patients in all groups had similar IKDC and Lysholm scores at the final follow-up. Conclusion: This is the first report of this specific procedure in the literature. All clinical and radiological findings showed that use of tibial cortical autograft was an efficient method in patients undergoing OWHTO.

7.
Knee Surg Sports Traumatol Arthrosc ; 21(12): 2667-73, 2013 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-23192762

RESUMEN

PURPOSE: Depending on the location and extent of the meniscectomy, loading on the tibial articular cartilage alters. The main purpose of the present study was to analyze the loading on the tibial articular cartilage following medial meniscectomy performed in various location and extent, as well as in the healthy knee, via finite element analyses on the solid models. METHODS: Totally, 11 finite element solid models, including the reference model, were created to investigate the effect of location (anterior, posterior, longitudinal) and extent of meniscectomy (25, 50, 75, and 100 %) on loading of tibial articular cartilage. RESULTS: Maximum equivalent stress of the tibial cartilage was measured 0.86 Megapascal in the reference model and increased approximately by 78 % in 25 % meniscectomy group, 177.9 % in 50 %, 473.8 % in 75 % meniscectomy group, and 752.6 % in total meniscectomy. When only the amount of meniscal tissue removed was considered ignoring the location of meniscectomy, no significant difference was found in the amount of tissue excised between 25 % meniscectomy and 50 % meniscectomy, as well as between 75 % meniscectomy and total meniscectomy. CONCLUSION: In all meniscectomy models, the loadings on tibial articular cartilage increased. Except total meniscectomy, the highest impact was observed in longitudinal 75 % meniscectomy. During the surgical treatment, the contributions of menisci on load absorption by increasing the tibiofemoral contact area must be considered. In fact, the increase in the rate of loading on tibial articular cartilage depends on according to type and amount of meniscectomy.


Asunto(s)
Cartílago Articular/fisiopatología , Meniscos Tibiales/cirugía , Tibia , Fenómenos Biomecánicos , Análisis de Elementos Finitos , Humanos , Imagenología Tridimensional , Imagen por Resonancia Magnética , Estrés Mecánico , Tomografía Computarizada por Rayos X
8.
J Foot Ankle Surg ; 52(2): 215-20, 2013.
Artículo en Inglés | MEDLINE | ID: mdl-23312404

RESUMEN

Calcaneal fractures are very common injuries, and closed reduction-percutaneous pinning, open reduction-internal fixation, and primary arthrodesis are the procedures used in the surgical treatment of these injuries. The aim of surgical treatment is to restore the normal biomechanics of the Achilles tendon and rearfoot by anatomic reduction of the articular surfaces. Minimization of the soft tissue complications commonly associated with the open treatment of calcaneal fractures can be achieved using indirect closed reduction and Kirschner wire or screw-assisted minimally invasive percutaneous osteosynthesis methods. In the present report, we describe a technique for the treatment of calcaneal fractures associated with soft tissues that are at risk of complications and present the cases of 3 patients treated with indirect, minimally invasive reduction of comminuted calcaneal fractures with the Endobutton(®) fixation device. From our experience with this method, we believe it will be useful in cases of acute calcaneal fracture with pronounced soft tissue injury localized to the hindfoot.


Asunto(s)
Calcáneo/lesiones , Calcáneo/cirugía , Fracturas Conminutas/cirugía , Dispositivos de Fijación Ortopédica , Adulto , Calcáneo/diagnóstico por imagen , Fijación Interna de Fracturas/instrumentación , Fijación Interna de Fracturas/métodos , Fracturas Conminutas/diagnóstico por imagen , Humanos , Imagenología Tridimensional , Masculino , Estudios Retrospectivos , Tomografía Computarizada por Rayos X
9.
Eur J Orthop Surg Traumatol ; 23(7): 825-9, 2013 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-23412209

RESUMEN

We evaluated the results of patients who had undergone medial open wedge proximal tibial osteotomy, with painful bone marrow edema in the medial tibial plateau. The study included 21 patients who had presented with knee pain and whose MRIs showed bone marrow edema in medial plateau. The degree of osteoarthritis was evaluated radiologically according to the Kellgren-Lawrence criteria; 6 cases were Grade 1, 11 cases were Grade 2, and 3 cases were Grade 3. Preoperative varus angle was a mean of 2.19° (0-4). The bone marrow edema was classified according to the width of the lesions extending into the joint surface subchondral area on MRI T2 sequences. Open wedge osteotomy was performed in all patients. The postoperative results were evaluated by X-ray, MRI, and WOMAC (Western Ontario and McMaster Universities) knee scores. The preoperative 2.19° varus angle was evaluated postoperatively as valgus 6.57° (4-8°) (p < 0.05). The postoperative WOMAC knee scores revealed a significant decrease in pain (p < 0.05). In conclusion, we are of the opinion that medial open wedge proximal tibial osteotomy is an effective treatment in patients who have painful bone marrow edema in medial tibia plateau.


Asunto(s)
Artralgia/cirugía , Enfermedades de la Médula Ósea/cirugía , Edema/cirugía , Osteotomía/métodos , Tibia/cirugía , Artralgia/etiología , Artroscopía/métodos , Enfermedades de la Médula Ósea/complicaciones , Placas Óseas , Edema/complicaciones , Femenino , Humanos , Imagen por Resonancia Magnética , Masculino , Persona de Mediana Edad , Osteoartritis de la Rodilla/complicaciones , Osteoartritis de la Rodilla/cirugía
10.
Artículo en Inglés | MEDLINE | ID: mdl-38131337

RESUMEN

OBJECTIVE: This study aimed to evaluate the diagnosis and treatment preferences of orthopedic surgeons in developmental dysplasia of the hip (DDH) cases under the age of 1 in Türkiye with a higher incidence of DDH, estimated to be around 5-15 per 1000 live births. METHODS: This was a nationwide cross-sectional survey. A link for the online survey, including 16 multiple-choice questions, was sent to the email group of the National Orthopedic Society. RESULTS: Among 233 filled-out surveys, 211 met the inclusion criteria. Half of the participants had experience of <10 years as orthopedic surgeons, managed <25% of pediatric patients in daily practice, and treated <25 DDH cases per year before walking age. Ninety-seven percent used more than one method, hip ultrasound the most common, for exact diagnosis of DDH under 6 months. Pavlik harness was the most commonly preferred brace, but the use of Tübingen orthosis increased among experienced surgeons. The uppermost age limit for bracing was higher in surgeons dealing with more pediatric patients and treating more DDH cases. Dislocated hips and hips requiring closed/open reduction were more commonly referred to other surgeons by less experienced surgeons in terms of years, number of pediatric patients, and treated DDH cases per year. The lowest age limit for intervention under general anesthesia was lower in surgeons treating >25 DDH cases per year. Over one-third used both anterior and medial approach open reduction, but a trend to anterior open reduction alone was more evident in surgeons treating >50 DDH cases per year. More experienced surgeons were more prone to check the intraoperative reduction with postoperative computed tomography or magnetic resonance imaging. Diagnosis and treatment ages of DDH cases did not significantly change during the coronavirus disease 2019 pandemic. CONCLUSION: Management preferences of orthopedic surgeons in DDH before walking age primarily depend on the rate of pediatric patients in daily practice and the number of treated DDH cases per year.

11.
J Orthop Sci ; 17(6): 796-801, 2012 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-22825767

RESUMEN

INTRODUCTION: Fracture healing is a complex process influenced by intrinsic and extrinsic factors. The aim of the present study was to evaluate the effects of botulinum toxin (BTX) A on fracture healing. MATERIALS AND METHODS: Following the induction of bilateral standard closed femoral fractures and relative fixation in 18 Wistar albino rats, 8 IU of BTX A were injected into the right femoral region. After 28 days, all of the rats were sacrificed, the diameter of the callus was measured, and fracture healing was assessed by biomechanical and histopathologic evaluation. RESULTS: While an increase in biomechanical and histopathologic healing was noted on the side injected with BTX A, a decrease in callus diameter was observed. CONCLUSION: Botulinum toxin A administration increases the healing power in a relatively fixated fracture and decreases the callus diameter, just as if rigid fixation had been performed. The beneficial effect of BTX A on fracture healing might be associated with increased fixation rigidity.


Asunto(s)
Fracturas del Fémur/terapia , Fijación de Fractura , Curación de Fractura/efectos de los fármacos , Fármacos Neuromusculares/uso terapéutico , Animales , Callo Óseo/efectos de los fármacos , Callo Óseo/patología , Toxinas Botulínicas Tipo A , Fracturas del Fémur/patología , Inyecciones Intramusculares , Masculino , Ratas , Ratas Wistar , Soporte de Peso
12.
Jt Dis Relat Surg ; 33(1): 208-215, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-35361097

RESUMEN

OBJECTIVES: This study aimed to present the clinical and radiological results of a large patient group operated by Tönnis lateral acetabuloplasty (TLA) for developmental dysplasia of the hip (DDH). PATIENTS AND METHODS: The retrospective study was conducted with 66 hips of 41 patients (5 males, 36 females; mean age: 32.3±18 months; range, 11 to 132 months) operated for DDH using the TLA technique in a single center between February 2012 and December 2016. Adductor tenotomy was performed on 52 (79%) hips. There was a need for additional femoral shortening and derotation-varization osteotomy in 14 (21%) hips. Clinical outcomes were evaluated with modified McKay criteria. The acetabular index and lateral migration index for the subluxated hip were calculated, and the femoral head position was evaluated according to Perkin's line and Shenton's line. The Severin classification was used to assess the outcome of the hips. RESULTS: The mean follow-up period was 27±11 months. According to the modified McKay criteria for DDH, 77.3% of hips were classified as excellent, 16.6% as good, and 6.1% as fair. The mean acetabular index decreased from 36.1° preoperatively to 18.6° postoperatively. The mean postoperative improvement for the acetabular index was 17.5±5. The lateral migration index improved from 89.7 to 10.6%. A statistically significant difference was determined between the preoperative and postoperative measurements of the acetabular index and lateral migration index (p<0.001). CONCLUSION: Tönnis lateral acetabuloplasty was found to be safe and effective with a low learning curve, and successful treatment decreases the duration of follow-up required in patients with DDH.


Asunto(s)
Acetabuloplastia , Displasia del Desarrollo de la Cadera , Acetabuloplastia/métodos , Niño , Preescolar , Displasia del Desarrollo de la Cadera/diagnóstico por imagen , Displasia del Desarrollo de la Cadera/cirugía , Femenino , Cadera , Humanos , Lactante , Masculino , Estudios Retrospectivos , Resultado del Tratamiento
13.
Eur J Trauma Emerg Surg ; 48(4): 3109-3114, 2022 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-34981137

RESUMEN

PURPOSE: The aim of this study was to present our experience of treating humerus fracture sustained during arm wrestling. METHODS: Data of patients treated in our clinic with the diagnosis of humeral shaft fracture due to arm wrestling between 2000 and 2020 was retrospectively reviewed. Data collected included age, sex, dominant arm, history of professional or experienced participation, type and laterality of fracture, presence of radial nerve palsy, other surgical complications, management (surgical or conservative), duration of union defined as the time from injury until callus was evident on the radiograph, and the range of motion of the elbow joint at the last follow-up. RESULTS: Nineteen patients with humeral shaft fracture as a result of the arm wrestling were included. All had right arm fracture and all had right as the dominant side. All of the fractures were spiral at the distal third of the humerus and medial butterfly fragment was present in eleven (57.9%). Seven (36.8%) were treated surgically. Five (26.3%) had radial nerve palsy on admission. At last follow-up, no patient had neural deficit and none had significant loss of range of movement. CONCLUSION: Arm wrestling is an important cause of humerus shaft fracture. The dominant side is invariably affected. In this series all fractures were spiral type and occurred in the distal third of the humerus. One quarter of patients experienced radial nerve palsy, which can resolve spontaneously. Satisfactory results can be obtained with both conservative and surgical treatment. LEVEL OF EVIDENCE: IV.


Asunto(s)
Fracturas del Húmero , Neuropatía Radial , Lucha , Brazo , Fijación Interna de Fracturas/métodos , Humanos , Fracturas del Húmero/complicaciones , Fracturas del Húmero/diagnóstico por imagen , Fracturas del Húmero/cirugía , Neuropatía Radial/complicaciones , Neuropatía Radial/etiología , Estudios Retrospectivos , Lucha/lesiones
14.
Ulus Travma Acil Cerrahi Derg ; 28(11): 1645-1649, 2022 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-36282158

RESUMEN

Osteoseptocutaneous fibula flap is commonly used as the workhorse flap for bone reconstruction. However, the use of previously fractured fibula as a free or pedicled flap for bone reconstruction has a limited knowledge in the literature. There is not any data in the literature about a case with proximal level of fibula fracture which was used as an anterograde pedicled osteocutaneous fibula flap for composite tibial reconstruction after high-energy injury. Based on a patient in whom the composite defect of the proximal tibial region was reconstructed with osteocutaneous fibula flap after a gunshot injury, it was tried to show that the fibula with a proximal level fracture could be used with anterograde flow in the subacute period and it is thought that the usability of this flap should be kept in mind. It is possible to harvest the pedicled fibula flap even in the subacute period with the evaluation of CT angiography preoperatively and with the checking the patency and flow direction of peroneal artery perioperatively. The success of the procedure may be increased through total dissection of inflammatory areas of pedicle which would extend into the injury zone during the subacute period.


Asunto(s)
Colgajos Tisulares Libres , Traumatismos de la Pierna , Procedimientos de Cirugía Plástica , Humanos , Peroné/lesiones , Colgajos Quirúrgicos/cirugía , Traumatismos de la Pierna/cirugía , Procedimientos de Cirugía Plástica/métodos , Trasplante Óseo/métodos , Colgajos Tisulares Libres/cirugía
15.
Int Orthop ; 35(3): 375-8, 2011 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-20644929

RESUMEN

In this study we compared the results of patients with displaced supracondylar humeral fractures who had been treated with all lateral cross-wire and medio-lateral cross-wire fixation techniques. Only the 139 patients who were able to attend the final examination were included in the assessment. The patients were allocated retrospectively into two groups according to the pin configuration used. Group 1 comprised 75 patients, 60 male and 15 female, with a mean age of 7.5 years (range, 1.5-14 years). After closed reduction, fixation was achieved with crossed K-wires placed from the lateral condyle and lateral humerus towards the medial epicondyle. Care was taken so that the end of the K-wire passing from the lateral humerus did not protrude excessively at the level of the medial epicondyle. Group 2 comprised 64 patients, 54 males and ten females, with a mean age of 7.8 years (range, 2-13 years). After closed reduction, two cross-wires passed-one from medial and one from lateral. In group 1 there was no postoperative iatrogenic nerve damage whereas in group 2 iatrogenic ulnar nerve damage developed in six (9%) patients. On statistical evaluation, a significant difference was seen between the two groups. According to Flynn's criteria, there was no statistically significant difference between the two groups. In conclusion, the lateral cross-wire fixation technique may be a good choice in the treatment of paediatric supracondylar humerus fractures as it reduces the possibility of ulnar nerve damage and achieves the same level of stabilisation as medio-lateral fixation.


Asunto(s)
Hilos Ortopédicos , Fijación Interna de Fracturas/métodos , Fracturas del Húmero/cirugía , Traumatismos del Sistema Nervioso/prevención & control , Nervio Cubital/lesiones , Adolescente , Desviación Ósea/cirugía , Niño , Preescolar , Femenino , Fijación Interna de Fracturas/efectos adversos , Curación de Fractura , Humanos , Lactante , Masculino , Complicaciones Posoperatorias , Estudios Retrospectivos , Traumatismos del Sistema Nervioso/etiología , Resultado del Tratamiento , Nervio Cubital/cirugía
16.
Ann Anat ; 227: 151416, 2020 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-31541687

RESUMEN

The purpose of this study is to determine whether there are differences in proximal femur parameters of women subjected to menopause surgically or naturally. In this study, 10 parameters belonging to proximal femur of a total of 60 women cases of whom 30 had a mean age of 55.53 ±â€¯4.57 years; body mass index, 33.06 ±â€¯4.21 kg/m2; menopause age, 48.10 ±â€¯5.92; and menopause years, 7.50 ±â€¯4.58; and who were subjected to natural menopause; and 30 women whose mean age was 56.10 ±â€¯6.87 years; body mass index, 33.33 ±â€¯3.76 kg/m2; menopause age, 48.00 ±â€¯4.64 years and menopause year, 8.10 ±â€¯7.29; who were subjected to surgical menopause, and who did not use hormone replacement, were examined by radiography. Their anthropometric measurements, body compositions, blood hormone analyses (FSH, LH, estradiol, progesterone) and bone mineral densities (femur neck, femur total, lumbar t-score) were evaluated. It was found that there was no difference between surgical and natural menopause with respect to proximal femur parameters (p > 0.05). It was also found that FSH levels were high in the surgical menopause group and there were significant differences between the groups (p < 0.040). No significant difference was found even though bone mineral density t-score tests were lower in the surgical menopause group (p > 0.05). It was found that the difference in low bone mineral density level and high FSH values in the surgical menopause group do not have a relationship with proximal femur morphometry. It was determined that even though the women did not have ovaries, there was no difference between surgical menopause women and natural menopause women with respect to proximal femur morphometry.


Asunto(s)
Fémur/anatomía & histología , Menopausia/fisiología , Obesidad/patología , Ovariectomía , Antropometría , Composición Corporal , Densidad Ósea , Estradiol/sangre , Femenino , Fémur/diagnóstico por imagen , Hormona Folículo Estimulante/sangre , Humanos , Hormona Luteinizante/sangre , Persona de Mediana Edad , Obesidad/fisiopatología , Progesterona/sangre , Radiografía
17.
Clin Invest Med ; 32(5): E376-82, 2009 Oct 01.
Artículo en Inglés | MEDLINE | ID: mdl-19796579

RESUMEN

AIM: To investigate the effects of radiotherapy on distraction osteogenesis performed on the same bone in an area that has not received radiation. Radiotherapy (Co60) was carried out in a region where tumors may develop, and then, on the assumption that the tumoral region had been removed, distraction osteogenesis was carried out, and the effects were investigated. METHOD: Thirty New Zealand rabbits were randomized into two groups, a study group (15 rabbits) and a control group (15 rabbits). In the study group, Co60 was administered by teletherapy to the distal half of the left tibia. Rabbits in the control group were kept in the same environment for the same period, but were not subjected to radiotherapy. Four weeks after radiotherapy, osteotomy was performed on the proximal part of the left tibia of all subjects, and distraction was carried out until 10mm. After distraction was completed, the outcomes were evaluated radiologically, scintigraphically, and histopathologically, and the results were compared. RESULTS: New bone formation achieved through distraction osteogenesis in the study group animals was inadequate, while new bone tissue achieved in the control group was superior (P < 0.001). CONCLUSION: Radiotherapy has a negative effect on distraction osteogenesis, even if performed on a different part of the bone.


Asunto(s)
Neoplasias/radioterapia , Osteogénesis/efectos de la radiación , Animales , Radioisótopos de Cobalto , Masculino , Conejos , Radiografía , Distribución Aleatoria , Tibia/diagnóstico por imagen , Tibia/patología , Tibia/cirugía
18.
Clin Invest Med ; 31(5): E296-9, 2008 Oct 01.
Artículo en Inglés | MEDLINE | ID: mdl-18980720

RESUMEN

Primary muscular Echinococcus infection is very rare without involvement of thoracic and abdominal organs. In this case a 31-year-old man who had a growing mass in the postero-medial part of his right thigh was examined. The mass was diagnosed as hydatid cyst using ultrasound, magnetic resonance imaging (MRI) and serological tests. It was removed surgically and there has been no recurrence one year after the surgery. The MRI imaging characteristics may differ depending on the life cycle stage of the parasite. In this case report, we discuss the imaging characteristics of the muscular hydatid cyst with special emphasis on the MRI findings. In regions where hydatidosis is endemic, a mass found in body muscles should be considered as a muscular hydatid cyst.


Asunto(s)
Equinococosis/diagnóstico por imagen , Echinococcus , Músculo Esquelético/parasitología , Enfermedades Musculares/parasitología , Adulto , Animales , Equinococosis/cirugía , Humanos , Masculino , Músculo Esquelético/diagnóstico por imagen , Músculo Esquelético/cirugía , Enfermedades Musculares/diagnóstico por imagen , Enfermedades Musculares/cirugía , Radiografía , Ultrasonografía
19.
Eur Spine J ; 17(5): 657-62, 2008 May.
Artículo en Inglés | MEDLINE | ID: mdl-18301931

RESUMEN

In posterior pedicle screw instrumentation of thoracic idiopathic scoliosis, screw malposition might cause significant morbidity in terms of possible pleural, spinal cord, and aorta injury. Preoperative axial magnetic resonance images (MRI) in 12 consecutive patients with right thoracic adolescent scoliosis, all with King type 3 curves, were analyzed in order to evaluate the relationship between the inserted pedicle screw position to pleura, spinal cord, aorta. Axial vertebral images for each thoracic level were scanned and the simulation of pedicle screw insertion was performed using a digital measurement programme. The angular contact value for each parameter regarding the pleura and spinal cord was measured on both sides of the curve. The aorta-vertebral distance was also measured. Aorta-vertebral distance was found to be decreasing gradually from the cephalad to the caudad with the shortest distance being measured at T12 with a mean of 1.2 mm. Concave-sided screws on T5-T9 and convex-sided screws on T2-T3 had the greatest risk to spinal cord injury. Pleural injury is most likely on T4-T9 segments by the convex side screws. T4-T8 screws on the concave side and T11-T12 screws on the convex side may pose risk to the aorta. This MRI-based study demonstrated that in pedicle instrumentation of thoracic levels, every segment deserves special consideration, where computer scanning might be mandatory in immature spine and in patients with severe deformity.


Asunto(s)
Tornillos Óseos/efectos adversos , Enfermedades Pleurales/prevención & control , Escoliosis/cirugía , Traumatismos de la Médula Espinal/prevención & control , Vértebras Torácicas/cirugía , Adolescente , Aorta Torácica , Niño , Femenino , Humanos , Imagen por Resonancia Magnética , Masculino , Enfermedades Pleurales/etiología , Estudios Retrospectivos , Riesgo , Traumatismos de la Médula Espinal/etiología
20.
Knee ; 15(2): 148-50, 2008 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-18207411

RESUMEN

Brucellosis is a zoonotic infection with a wide spectrum of clinical presentations. We present a rare case of brucellosis with osteoarticular involvement complicated by a femoral intramedullary nail protruding the suprapatellar pouch. Although Brucella melitensis is a rare cause of brucellar septic arthritis, it should not be excluded from the list of suspected organisms in endemic areas for the disease.


Asunto(s)
Artritis Infecciosa/microbiología , Clavos Ortopédicos/efectos adversos , Brucelosis/diagnóstico , Migración de Cuerpo Extraño/complicaciones , Adulto , Antibacterianos/uso terapéutico , Artritis Infecciosa/tratamiento farmacológico , Brucella melitensis/aislamiento & purificación , Brucelosis/tratamiento farmacológico , Fracturas del Fémur/cirugía , Fijación Intramedular de Fracturas , Humanos , Masculino
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