Metacarpal fractures treatment: comparasion between kirschner wire and intramedullary screw / Tratamento de fraturas metacarpais: comparação entre fios de kirschner e fixação intramedular

ABSTRACT Introduction: Metacarpal fractures are common and can be treated surgically using Kirschner wires (K-wires) or intramedullary fixation with compression screws (IMCS). Objectives: Analyze the postsurgical results from treating the metacarpal extra-articular fractures through the retrograde Kirschner wire technique, and compare it with the intramedullary compression screw fixation. Methods: Retrospective and quantitative studies were to analyze patients' medical records, and a postsurgical evaluation questionnaire was given to the patients, who were divided into K-wire and IMCS. Results: The period of immobilization with a splint took six weeks for the K-wire group and four weeks for the IMCS group. The average time for consolidation took, respectively, fifty-seven days and forty-seven days. The first group could restart their activities twenty-two days after the other, and the average force value of the treated hand, when compared with its contralateral, was 93.9% and 95.4%, respectively. Between the operated hand and its contralateral, there was a difference of 16° in the total measures of the metacarpophalangeal and interphalangeal joint's range of movement among the K-wire group and 5° among the IMCS group. Conclusion: The patients who participated in this study showed excellent results after surgery, and both treatments were proven to be safe and reliable. Evidence level III; Retrospective comparative study .

RESUMO Introdução: Fraturas dos metacarpos são frequentes e podem ser tratadas de forma cirúrgica com os fios de Kirschner (FK) e Fixação Intramedular com Parafuso de Compressão (FIPC). Objetivo: Analisar os resultados pós-operatórios do tratamento das fraturas extra-articulares dos metacarpos pela técnica retrógrada com fios de Kirschner e comparar com a fixação intramedular utilizando parafuso de compressão. Métodos: Estudo retrospectivo, quantitativo, com análise de prontuários, utilizando questionários de avaliação pós-operatória em dez pacientes divididos em dois grupos: FIPC e FK. Resultados: O período de imobilização com tala nos grupos FK e FIPC foram de seis e quatro semanas respectivamente, já o tempo médio para consolidação foi de 57 e 47 dias respectivamente. O grupo FK retornou as atividades laborais após os FIPC. O valor médio de força na mão acometida comparada a contralateral foi de 93,9% no grupo FK, e no FIPC de 95,4%. Medidas da soma de amplitude de movimento das articulações metacarpofalangeanas e interfalangeanas no grupo FK obtiveram diferença média entre as mãos operada e a contralateral de 16°, já na FIPC observou-se 5°. Conclusão: Os pacientes estudados apresentaram excelentes resultados pós-operatórios e ambos os tratamentos provam ser seguros e confiáveis. Nível de evidência III; Estudo retrospectivo comparativo .

The curative effect of modified double Kirschner wire compression fixation in the treatment of skeletal mallet fingers and its influencing factors / 中国医师进修杂志

Objective:To explore the curative effect of modified double Kirschner wire compression fixation in the treatment of skeletal mallet fingers, and analyze the related influencing factors of curative effect.Methods:The clinical data of 100 patients with skeletal mallet fingers from January 2018 to December 2020 in Yanzhou Branch of Affiliated Hospital of Jining Medical University were retrospectively analyzed, and the patients were treated with modified double Kirschner wire compression fixation. Before surgery and 8 weeks after surgery, the Fugl-Meyer score, simple test for evaluating hand function (STEF) score and visual analogue score (VAS) were assessed, and the flexion range of knuckles was measured. The curative effect was evaluated by Crawford standard, excellent and good means was good prognosis, medium and poor was poor prognosis. Binary Logistic regression was used to analyze the influencing factors of curative effect in patients with skeletal mallet fingers, Spearman method was used to analyze correlation.Results:All incisions healed in the first stage 14 d after surgery, the function and structure of the hand recovered well, and related incision skin necrosis and needle tract infection did not occur. Compared with before surgery, the Fugl-Meyer score, STEF score and flexion range of knuckles 8 weeks after surgery were significantly higher: (62.58 ± 4.56) scores vs. (32.33 ± 2.84) scores, (91.31 ± 3.19) scores vs. (62.51 ± 3.42) scores and (66.72 ± 3.65)° vs. (45.56 ± 2.31)°, the VAS was significantly lower: (2.65 ± 1.19) scores vs. (5.68 ± 1.43) scores, and there were statistical differences ( P<0.01). According to Crawford standard, good prognosis was in 79 cases, and poor prognosis was in 21 cases. There were no statistical differences in gender composition, injury location, cause of injury and type of injury between good prognosis patients and poor prognosis patients ( P>0.05); compared with the poor prognosis patients, the good prognosis patients were younger, the time from injury to surgery was shorter, the injured parts were mainly the little finger and ring finger, and there were statistical differences ( P<0.05 or <0.01). Binary Logistic regression analysis result showed that age, time from injury to operation and injury site were independent risk factors of curative effect in patients with skeletal mallet fingers ( OR = 4.62, 5.94 and 2.33; 95% CI 1.06 to 20.14, 2.23 to 15.81 and 1.12 to 4.82; P<0.05 or <0.01). Spearman correlation analysis result showed that the curative effect was positively correlated with age, time from injury to operation and injury location ( r = 0.25, 0.62 and 0.43; P<0.05 or <0.01). Conclusions:Modified double Kirschner wire compression fixation in the treatment of skeletal mallet fingers can promote the recovery of finger function after surgery, but age, damaged location and time of visit are independent risk factors of curative effect.

Minimally invasive posterior reconstructive plating by parallel Kirschner wires for unstable posterior pelvic fractures / 中华创伤骨科杂志

Objective To explore the clinical efficacy of minimally invasive posterior reconstructive plating by parallel Kirschner wires in the treatment of unstable posterior pelvic fractures.Methods From January 2013 to December 2016,29 patients with unstable posterior pelvic fracture were treated at Trauma Center,Liuzhou Workers' Hospital.They were 22 men and 7 women,aged from 19 to 65 years (mean,44.2 years).By the Tile classification,10 cases were classified as type B and 19 as type C.The delay from injury to surgery ranged from 4 to 14 days (mean,8.7 days).All the patients received minimally invasive posterior fixation with a U-shaped reconstructive plate and parallel Kirschner wires.The length of incision,intraoperative bleeding,operation time,quality of fracture reduction,curative effects and complications at the last follow-up were recorded.Results The length of intraoperative unilateral incision ranged from 2.3 to 3.4 cm (average,2.99 cm);the volume of intraoperative bleeding ranged from 47 to 88 mL (average,69.9 mL);the average operation time ranged from 17 to 34 min (average,25.2 min).One patient was lost to the follow-up.The other 28 patients were followed up for 14 to 26 months (average,18.3 months).The fracture healing time ranged from 8 to 15 months (average,10.1 months).According to the Matta criteria for fracture reduction,17 cases were rated as excellent at the last follow-up,9 as good,one as fair and one as poor,giving an excellent to good rate of 92.9％.According to the Pohlemann functional scoring,14 cases were rated as excellent,11 as good,2 as fair and one as poor,giving an excellent to good rate of 89.3％.Conclusion In the treatment of unstable posterior pelvic fractures,minimally invasive posterior reconstructive plating by parallel Kirschner wires presents advantages of high security,limited surgical trauma,good curative effects and limited postoperative complications.

A combined technique for acromioclavicular reconstruction after acute dislocation - technical description and functional outcomes / Técnica combinada para reconstrução acromioclavicular após luxação aguda - descrição técnica e resultados funcionais

ABSTRACT Objective: This study aims to describe the surgical approach to such injuries and to present the clinical and functional outcomes obtained in a cohort of patients. Methods: This is an observational retrospective study that included 153 patients with acute acromioclavicular joint dislocation, operated between 1999 and 2015. Clinical evaluation included the following outcomes: Constant functional scale, development of complications, time to return to previous work/sport activities, and satisfaction index. The contra-lateral (uninjured) shoulder was used as control in subjective outcomes. Radiological evaluation was performed in order to monitor signs of loss of reduction, degenerative joint changes, and coracoclavicular calcifications. Results: The mean age was 29.20 ± 9.53 (16-71), with a large male predominance (91.5%). Follow-up lasted 55.41 ± 24.87 (12-108) months. The mean Constant score attained was 96.45 ± 4.00 (84-100) on operated shoulders and 98.28 ± 1.81 (93-100) on contralateral ones. Almost all patients (98.69%) were satisfied with the surgical results. Worse outcomes were observed in acromioclavicular joint dislocations of increasing grade (from type III to V, but worse for type IV), both concerning the Constant score and return to work or sport. The overall incidence of complications was considered low, with the most prevalent being Kirschner wire failure and isolated coracoclavicular ligament calcifications. Conclusion: The surgical technique described is an excellent option in the treatment of acute acromioclavicular joint dislocations of Rockwood grades III to V. This is corroborated by the excellent clinical and functional outcomes and the low rate of complications.

RESUMO Objetivo: Descrever a abordagem cirúrgica das luxações acromioclaviculares agudas e apresentar os desfechos clínicos e funcionais obtidos em uma coorte de pacientes. Métodos: Estudo observacional retrospectivo que incluiu 153 pacientes com luxação aguda da articulação acromioclavicular operados entre 1999 e 2015. A avaliação clínica incluiu os seguintes desfechos: escala funcional de Constant, surgimento de complicações, tempo até o retorno ao trabalho ou atividades esportivas e índice de satisfação. O ombro contralateral (não lesionado) foi usado como controle nos resultados subjetivos. Foi feita avaliação radiológica para monitorar sinais de perda de redução, alterações articulares degenerativas e calcificações coracoclaviculares. Resultados: A média de idade foi de 29,20 ± 9,53 (16 a 71), com grande predominância masculina (91,5%). O seguimento durou 55,41 ± 24,87 (12 a 108) meses. A média no escore Constant foi de 96,45 ± 4,00 (84 a 100) nos ombros operados e 98,28 ± 1,81 (93 a 100) nos contralaterais. Quase todos os pacientes (98,69%) ficaram satisfeitos com os resultados da cirurgia. Luxações de articulação acromioclavicular de grau crescente (do tipo III para V, mas principalmente no tipo IV) apresentaram resultados piores, tanto no que diz respeito ao escore de Constant quanto ao retorno ao trabalho ou esporte. A incidência global de complicações foi considerada baixa, as mais prevalentes foram falha do fio de Kirschner e calcificações isoladas do ligamento coracoclavicular. Conclusão: A técnica cirúrgica descrita é uma excelente opção no tratamento de luxações agudas de articulações acromioclaviculares classificadas como graus III a V na escala de Rockwood. Essa conclusão é corroborada pelos excelentes resultados clínicos e funcionais e pela baixa taxa de complicações.

Curative effect of closed replacement via internal and external crossed fixation with three kirschner wires on treating supracondylar fracture of humerus in children / 新乡医学院学报

Objective To investigate the closed replacement via internal and external crossed fixation with three kirschner wires on treating supracondylar fracture of humerus in children.Methods One hundred and six patients with supracondylar fracture of humerus in Osteopathic Hospital of Nanyang City from June 2010 to July 2015were divided into control group and observation group.Fifty patients in the control group were given closed replacement via external crossed fixation with three kirschner wires,while fifty-six patients in the observation were given closed replacement via internal and external crossed fixation with three kirschner wires.The visual analogue scales(VAS) score was recorded in the two groups before and after treatment.The curative effect was evaluated by Flynn elbow function evaluation standard and the incidence of postoperative complication was compared between the two groups.Results All the patients were followed up for 3-24 months.The time of fracture healing in the control group and the observation group was (6.0 ± 1.0) weeks and (5.6 ± 1.0) weeks respectively,there was no significant difference in the time of fracture healing between the two groups(P ＞0.05).There was no significant difference in the VAS score before treatment in the two groups (P ＞ 0.05).After treatment the VAS score in the two groups was lower than that before treatment(P ＜ 0.05),and the VAS score in the observation group was lower than that in the control group (P ＜0.05).The therapeutic efficiency in the control group and the observation group was 74.00％ (37/50) and 91.07％(51/56),respectively.The therapeutic efficiency in the observation group was higher than that in the control group(x2 =5.461,P ＜ 0.05).The incidence of postoperative complication in the control group and the observation group was 16.00％ (8/50) and 3.57％ (2/56),respectively.The incidence of postoperative complication in the observation group was lower than that in the control group (x2 =4.624,P ＜ 0.05).Conclusion Comparing with the treatment of closed replacement via external crossed fixation with three kirschner wires,therapeutic efficiency of the closed replacement via internal and external crossed fixation with three kirschner wires in treating children supracondylar fracture of humerus is more obviously and the incidence of postoperative complication is lower.

Open reduction and external fixation with two parallel Kirschner wires for treatment of Gartland type Ⅲ fractures in children / 医疗卫生装备

Objective To compare the clinical effects on Gartland type Ⅲ fractures in children by open reduction and external fixation with two parallel Kirschner wires and closed reduction.Methods From February 2013 to October 2016,84 children with Gartland type Ⅲ supracondylar fracture of humerus were selected and randomly divided into a control group and an observation group,each with a total of 42 cases.The control group received closed reduction treatment,and the observation group received open and external fixation with two parallel Kirschner wires.The two groups were compared on intraoperative blood loss,incision length,operating time,decreased degrees of carrying angle,reduced flexion-extension at the fractured side and the rates for good and excellent clinical effects.Results The observation group behaved significantly better than the control group in intraoperative blood loss,incision length and operating time (P＜0.05).The rates for good and excellent effects was 90.47％ in the observation group and 73.81％ in the control group,and there was obvious difference between the values in the two groups (P＜0.05).The observation group had the decreased degree of carrying angle statistically lower than that in the control group (P＜0.05),while the reduced flexion-extension at the fractured side was not significantly different from that in the control group (P＞0.05).Conclusion Open reduction and external fixation with two parallel Kirschner wires and closed reduction both gain their advantages when used to treat Gartland type llⅢ fractures in children,the former has high clinical effect,significantly recovered elbow joint function and low incidence rate for cubitus varus,and the latter has slight invasion,small incision while relatively low clinical effect and high incidence rate for cubitus varus.

Open reduction and external fixation with two parallel Kirschner wires for treatment of Gartland type Ⅲ fractures in children / 医疗卫生装备

Objective To compare the clinical effects on Gartland type Ⅲ fractures in children by open reduction and external fixation with two parallel Kirschner wires and closed reduction.Methods From February 2013 to October 2016,84 children with Gartland type Ⅲ supracondylar fracture of humerus were selected and randomly divided into a control group and an observation group,each with a total of 42 cases.The control group received closed reduction treatment,and the observation group received open and external fixation with two parallel Kirschner wires.The two groups were compared on intraoperative blood loss,incision length,operating time,decreased degrees of carrying angle,reduced flexion-extension at the fractured side and the rates for good and excellent clinical effects.Results The observation group behaved significantly better than the control group in intraoperative blood loss,incision length and operating time (P＜0.05).The rates for good and excellent effects was 90.47％ in the observation group and 73.81％ in the control group,and there was obvious difference between the values in the two groups (P＜0.05).The observation group had the decreased degree of carrying angle statistically lower than that in the control group (P＜0.05),while the reduced flexion-extension at the fractured side was not significantly different from that in the control group (P＞0.05).Conclusion Open reduction and external fixation with two parallel Kirschner wires and closed reduction both gain their advantages when used to treat Gartland type llⅢ fractures in children,the former has high clinical effect,significantly recovered elbow joint function and low incidence rate for cubitus varus,and the latter has slight invasion,small incision while relatively low clinical effect and high incidence rate for cubitus varus.

Development and clinical application of new designed Kirschner wires guider for patellar fracture / 局解手术学杂志

Objective To develop a new designed Kirschner wires guider for patellar fracture,and to evaluate its clinic outcomes.Methods From October 2010 to November 2015,totally 72 patients with patellar fracture were detected for this study.Divided them into 3 groups, named as the second-generation guider group,the first-generation guider group and the control group.And then evaluated the clinic outcomes in treatment of patellar fracture of the 3 groups.Results The surgery time,accuracy of placement needle position of the second-generation guider group were better than the other two groups with significant statistical differences (P <0.01).And the clinic outcomes of the first-generation guider group were better than the control group,and the differences were statistically significant (P <0.05).Conclusion The second-generation Kirschner wires guider is reasonable in design and convenient for use.Moreover,it can improve the accuracy and quality of surgery,reduce the operation time,and enhance the clinical effects.

The Floating Upper Limb: Multiple Injuries Involving Ipsilateral, Proximal, Humeral, Supracondylar, and Distal Radial Limb

Floating arm injury represents a common yet complicated injury of the childhood severely associated with limb deformation and even morbidity, if not precisely addressed and credibly operated. Here, we report a rare floating upper limb case of a 9-year-old boy with multiple injuries of ipsilateral proximal humeral, supracondylar and distal radial limb. This is the first report to document such a combined floating elbow and floating arm injury in the same limb. In this report, we discuss the surgical procedures used and recovery of the patient monitored to ascertain the effectiveness of the method in limb reorganisation.

Tibial osteosynthesis in a guinea pig (Cavia porcellus) / Osteossíntese de tíbia em um cobaio (Cavia porcellus)

A guinea pig was presented with left pelvic limb lameness after unknown trauma. Radiographs revealed complete oblique diaphyseal fracture of the distal third of the left tibia and fibula. The guinea pig was treated surgically with an intramedullary pin. The day after surgery the guinea pig was using the limb comfortably (grade 1/5 lameness). Callus formation was obtained 21 days after surgery without complications.

Um cobaio foi atendido com claudicação de membro pélvico esquerdo após trauma desconhecido. Radiografias revelaram fratura completa oblíqua da diáfise do terço distal da tíbia e fíbula esquerdas. O cobaio foi tratado cirurgicamente com um pino intramedular. No dia seguinte à cirurgia, o paciente utilizava o membro confortavelmente (grau 1/5 de claudicação). Calo ósseo foi obtido 21 dias após a cirurgia, sem complicações.

The Rubber Stopper: A Simple and Inexpensive Technique to Prevent Pin Tract Infection following Kirschner Wiring of Supracondylar Fractures of Humerus in Children

Percutaneous pinning after closed reduction is commonly used to treat supracondylar fractures of the humerus in children. Minor pin tract infections frequently occur. The aim of this study was to prevent pin tract infections using a rubber stopper to reduce irritation of the skin against the Kirschner (K) wire following percutaneous pinning. Between July 2011 and June 2012, seventeen children with closed supracondylar fracture of the humerus of Gartland types 2 and 3 were treated with this technique. All patients were treated with closed reduction and percutaneous pinning and followed up prospectively. Only one patient, who was a hyperactive child, developed pin tract infection due to softening of the plaster slab. We found using the rubber stopper to be a simple and inexpensive method to reduce pin tract infections following percutaneous pinning.

Kirschner Wire Fixation for the Treatment of Comminuted Zygomatic Fractures

BACKGROUND: The Kirschner wire (K-wire) technique allows stable fixation of bone fragments without periosteal dissection, which often lead to bone segment scattering and loss. The authors used the K-wire fixation to simplify the treatment of laborious comminuted zygomatic bone fracture and report outcomes following the operation. METHODS: A single-institution retrospective review was performed for all patients with comminuted zygomatic bone fractures between January 2010 and December 2013. In each patient, the zygoma was reduced and fixed with K-wire, which was drilled from the cheek bone and into the contralateral nasal cavity. For severely displaced fractures, the zygomaticofrontal suture was first fixated with a microplate and the K-wire was used to increase the stability of fixation. Each wire was removed approximately 4 weeks after surgery. Surgical outcomes were evaluated for malar eminence, cheek symmetry, Kwire site scar, and complications (based on a 4-point scale from 0 to 3, where 0 point is 'poor' and 3 points is 'excellent'). RESULTS: The review identified 25 patients meeting inclusion criteria (21 men and 4 women). The mean age was 52 years (range, 15-73 years). The mean follow up duration was 6.2 months. The mean operation time was 21 minutes for K-wire alone (n=7) and 52 minutes for K-wire and plate fixation (n=18). Patients who had received K-wire only fixation had severe underlying diseases or accompanying injuries. The mean postoperative evaluation scores were 2.8 for malar contour and 2.7 for K-wire site scars. The mean patient satisfaction was 2.7. There was one case of inflammation due to the K-wire. CONCLUSION: The use of K-wire technique was associated with high patient satisfaction in our review. K-wire fixation technique is useful in patient who require reduction of zygomatic bone fractures in a short operating time.

Clinical and Radiologic Outcomes of Acute Acromioclavicular Joint Dislocation: Comparison of Kirschner's Wire Transfixation and Locking Hook Plate Fixation

BACKGROUND: Kirschner's wire (K-wire) transfixation and locking hook plate fixation techniques are widely used in the treatment of acute acromioclavicular joint (ACJ) dislocation. The purpose of this study was to compare the clinical and radiologic outcomes between K-wires transfixation and a locking hook plate fixation technique. METHODS: Seventy-seven patients with acute ACJ dislocation managed with K-wire (56 shoulders) and locking hook plate (21 shoulders) were enrolled for this study. The mean follow-up period was 61 months. RESULTS: At the last follow-up, the shoulder rating scale of the University of California at Los Angeles (UCLA) was higher in patients treated with locking hook plate than with K-wires (33.2 +/- 2.7 vs. 31.3 +/- 3.4, p=0.009). In radiologic assessments, coracoclavicular distance (CCD) (7.9 mm vs. 7.7 mm, p=0.269) and acromioclavicular distance (ACD) (3.0 mm vs. 1.9 mm, p=0.082) were not statistically different from contralateral unaffected shoulder in locking hook plate fixation group, but acromioclavicular interval (ACI) was significant difference. However, there were significant differences in ACI, CCD, and ACD in K-wire fixation group (p<0.001). Eleven complications (20%) occurred in K-wire transfixation group and 2 subacromial erosions on computed tomography scan occurred in locking hook plate fixation group. CONCLUSIONS: ACJ stabilization was achieved in acute ACJ dislocations treated with K-wires or locking hook plates. Locking hook plate can provide higher UCLA shoulder score than K-wire and maintain CCD, and ACD without ligament reconstruction. K-wire transfixation technique resulted in a higher complication rate than locking hook plate.

Clinical and Radiologic Outcomes of Acute Acromioclavicular Joint Dislocation: Comparison of Kirschner's Wire Transfixation and Locking Hook Plate Fixation

BACKGROUND: Kirschner's wire (K-wire) transfixation and locking hook plate fixation techniques are widely used in the treatment of acute acromioclavicular joint (ACJ) dislocation. The purpose of this study was to compare the clinical and radiologic outcomes between K-wires transfixation and a locking hook plate fixation technique. METHODS: Seventy-seven patients with acute ACJ dislocation managed with K-wire (56 shoulders) and locking hook plate (21 shoulders) were enrolled for this study. The mean follow-up period was 61 months. RESULTS: At the last follow-up, the shoulder rating scale of the University of California at Los Angeles (UCLA) was higher in patients treated with locking hook plate than with K-wires (33.2 +/- 2.7 vs. 31.3 +/- 3.4, p=0.009). In radiologic assessments, coracoclavicular distance (CCD) (7.9 mm vs. 7.7 mm, p=0.269) and acromioclavicular distance (ACD) (3.0 mm vs. 1.9 mm, p=0.082) were not statistically different from contralateral unaffected shoulder in locking hook plate fixation group, but acromioclavicular interval (ACI) was significant difference. However, there were significant differences in ACI, CCD, and ACD in K-wire fixation group (p<0.001). Eleven complications (20%) occurred in K-wire transfixation group and 2 subacromial erosions on computed tomography scan occurred in locking hook plate fixation group. CONCLUSIONS: ACJ stabilization was achieved in acute ACJ dislocations treated with K-wires or locking hook plates. Locking hook plate can provide higher UCLA shoulder score than K-wire and maintain CCD, and ACD without ligament reconstruction. K-wire transfixation technique resulted in a higher complication rate than locking hook plate.

Surgical Treatment of the Fifth Metatarsal Base Fracture Using Multiple Kirschner Wires / 대한족부족관절학회지

PURPOSE: The purpose of this study is to evaluate the clinical and radiographic results of internal fixation using multiple Kirschner wires (K-wires) for the fifth metatarsal base fracture. MATERIALS AND METHODS: We retrospectively reviewed 14 patients with a displaced fifth metatarsal base fracture. We measured the distance of fracture displacement on the foot oblique radiograph pre- and post-operatively. We evaluated the clinical results using the visual analog pain scale at six weeks and three months postoperatively and the American Orthopaedic Foot and Ankle Society (AOFAS) midfoot score at six months postoperatively. RESULTS: In our series, 10 cases were zone I fracture and four cases were zone II fracture. We achieved anatomical reduction and bony union in all of our cases. The average time to bone union was 43 days. The degree of pain around the fifth metatarsal base was significantly decreased after surgery. The average AOFAS score was 95 at six months postoperatively. CONCLUSION: Multiple K-wire fixation is a relatively simple fixation method for displaced fifth metatarsal base fractures. If we place a K-wire into the medial cortex of the fifth metatarsal, we could prevent proximal migration of the K-wire.

Osteossíntese de fêmur em gato-do-mato-pequeno (Leopardus tigrinus) / Femur osteosynthesis in little spotted cat (Leopardus tigrinus)

O gato-do-mato-pequeno (Leopardus tigrinus) apresenta porte e proporção corporal semelhante ao gato doméstico e é a menor espécie de felídeo não doméstico do Brasil, sendo classificado com espécie da fauna brasileira ameaçada de extinção. Em gatos domésticos, o fêmur é o osso que mais sofre trauma e a porção distal é a mais acometida por fraturas. Uma fêmea de gato-do-mato-pequeno, com cinco meses de idade, apresentando fratura completa transversa supracondilar de fêmur direito foi tratada com sucesso por meio de osteossíntese com dois fios de Kirschner cruzados. Aos 60 dias de evolução do procedimento cirúrgico, a paciente recebeu alta do Hospital Veterinário, sendo devolvida ao seu local de origem. Segundo o conhecimento dos autores, este é o primeiro relato de osteossíntese de fêmur com o uso de fios de Kirschner em Leopardus tigrinus. Assim, o tratamento foi desenvolvido com base em dados referentes ao gato doméstico em função da similaridade anatômica entre as duas espécies. O método de osteossíntese escolhido, nesse relato, mostrou-se eficaz, promovendo retorno adequado à função do membro.

The little spotted cat or oncilla (Leopardus tigrinus) is a wild feline that has size and body proportions similar to the domestic cat (Felis catus), but can be classified as the smallest wild feline all the way from Costa Rica to Brazil and Argentina threatened with extinction. In domestic cats, the distal portion of the long bone femur is more susceptible to fractures. The aim of this paper is to report the treatment of a complete, transverse, supracondylar fracture of the right femur on a five-month-old little female oncilla, by internal fixation by two crossed Kirschner wires. At 60 days after surgery, the patient was discharged from the veterinary hospital and returned to its place of origin. Considering the author's knowledge, this is the first report of osteosynthesis in L. tigrinus using this described technique. Due to similarities with species, anatomical, surgical and anesthetics data of domestic cats were considered. The fixation method was successful and limb function was achieved without any complication.

Resultados funcionais e radiológicos a longo prazo da fixação percutânea das fraturas da extremidade distal do rádio / Distal radius fractures: long term functional and radiological results of percutaneous pinning fixation

OBJETIVO: O objetivo do presente estudo é a análise funcional e radiográfica, a longo prazo, dos pacientes com fratura do rádio distal tratados com redução fechada e fixação percutânea com fios de Kirschner. MÉTODOS: De 84 pacientes submetidos à fixação percutânea de fratura do rádio distal avaliamos 34, com tempo médio de acompanhamento de 85,7 meses com tempo mínimo de 18 meses e máximo de 168 meses. Dos 34 pacientes, 23 eram mulheres, e a idade variou de 28 a 88 anos (média de 65 anos). Foram feitas mensurações da amplitude de movimentos (ADM), força de preensão, graduação da dor e aplicação da escala funcional DASH. Além disso, medidas radiográficas foram realizadas para avaliação do tempo de consolidação e ângulos da extremidade distal do rádio. RESULTADOS: Os pacientes incluídos no estudo tiveram suas fraturas consolidadas em tempo médio de 41 dias. Os valores médios encontrados para flexão, extensão, desvio radial, desvio ulnar, pronação e supinação pós-operatórios estão dentro da zona funcional de ADM do punho. A maioria (76,5%) dos pacientes não apresentava dor na época do exame e 23 pacientes (67,6%) apresentaram um valor para o DASH igual a zero. Ocorreu uma perda de redução que foi reoperada após duas semanas de evolução e um paciente desenvolveu distrofia simpaticorreflexa associada à alteração na articulação radioulnar distal (ARUD). CONCLUSÃO: A fixação percutânea no tratamento das fraturas da extremidade distal do rádio resulta, a longo prazo, em excelente ADM, pouca ou nenhuma dor, parâmetros radiográficos aceitáveis, baixo índice de complicações além de ser um método barato e eficiente.

OBJECTIVE: To evaluate, functionally and radiologically, the long term outcomes of the management of distal radius fracture treated by closed reduction and percutaneous pinning fixation. METHODS: From 84 patients submitted to percutaneous fixation of the distal radius fracture, we evaluated 34, with a medium follow-up of 85.7 months (from 18 to 168 months). Of the 34 patients, 23 were women, and the ages ranged from 28 to 88 years (median 65 years). We analyzed the range of movement, strength, pain and the results of the DASH questionnaire. Radiological evaluation was also carried out, to evaluate healing time and angles of the distal radius. RESULTS: The fractures healed in an average of 41 days. The mean values for wrist flexion, extension, radioulnar deviation, pronation and supination were within the functional parameters for ADM do punho. Most of the patients (76.5%) presented no pain during the examination, and 23 patients presented a DASH value of zero. There was one case of loss of reduction, which was re-operated two weeks after the initial surgery, and one patient developed a sympathetic dystrophy associated with a distal radioulnar joint disturbance. CONCLUSION: Percutaneous pinning fixation for distal radius fracture results in a long term follow-up with excellent range of movement, little or no pain, acceptable radiographic parameters, and low complication rate, and is an efficient and low cost method.

Modified Extension Block Technique Using Conjoined Kirschner Wires for Bony Mallet Fingers

PURPOSE: To analyze the clinical results of the modified extension block fixation method using conjoined K-wires for bony mallet fractures. MATERIALS AND METHODS: From March 2006 to March 2009, we performed conjoined K-wire fixation as a modification of extension block technique in 9 patients with a bony mallet finger. After the average follow-up of 4.8 months, range of motion, pain, nail deformity, and bony union were evaluated. RESULTS: The average range of motion was 3.3degrees (range, 0-20degrees)of extension lag and 76.7degrees (range, 45-90degrees) of flexion. Bony union was obtained in all patients. No nail deformity was observed. One patient complained of distal interphalangeal joint pain. CONCLUSION: The extension block fixation method using conjoined K-wires can be an acceptable treatment option which provides stable fixation in bony mallet fractures.

Operative Management of Metacarpal and Phalangeal Fractures.

Fractures of metacarpals and phalanges are probably the most common fractures in the skeletal system and are often neglected as minor injuries. Most of the fractures are treated conservatively but some form of fixation is often indicated in unstable fractures, intra-articular fractures, open fractures and multiple fractures. Various implants ranging from K-wires to mini-plates are used. A retrospective analysis of 50 cases of metacarpal and phalangeal fractures treated by different methods over a period of one year was undertaken. The study showed that right hand was more commonly involved. Most common mechanism of injury was fall and second ray was most commonly involved. Most common fracture pattern was transverse and K-wires were frequently used as mode of fixation followed by mini-plates. The patients were followed up at regular intervals and union was achieved in 98% of fractures. From our study we would emphasize that operative management of metacarpal and phalangeal fractures has definitely an advantage over the closed methods of treatment especially in displaced, unstable, comminuted, intraarticular, open and multiple fractures. Operative management of hand fractures should be undertaken only if a definite indication exists. Indiscriminate use of it should be avoided. The operative management of metacarpal and phalangeal fractures results in accurate reduction of the fracture and joints should be mobilised early following fixation to prevent stiffness of the fingers and regain the desired range of motion at the joint.