PURPOSE OF THE STUDY The study gives a retrospective assessment of the outcomes of surgical treatment in patients who sustained a subtrochanteric fracture. MATERIAL AND METHODS In the period 2010-2018, a total of 118 patients with a subtrochanteric fracture, namely 75 males and 43 females, the mean age 61 years, were treated at our department. The study group included the patients who met the following inclusion criteria: age 18+, fracture treated by intramedullary nailing, follow-up for at least 12 months, in case of impaired healing and need for revision surgery follow-up until complete healing was achieved. Exclusion criteria - pathological fractures, periprosthetic fractures, pertrochanteric fractures with extension into subtrochanteric region, intertrochanteric fractures, fractures during bisphosphonate treatment, incomplete radiological documentation, non-compliance with the condition of 12-month follow-up. In 54 patients (46%) the injury was caused by high-energy impact, in the remaining 64 patients (54%) the fracture was the consequence of low energy mechanism. In 51 patients (43%) closed reduction was performed and 67 patients (57%) underwent open reduction. In 27 patients (23%) a small incision laterally was necessary to insert the reduction instrument in order to achieve correct position of the fracture. In 40 patients (34%) lateral approach was used for the reduction and proper placement of fragments was ensured by one or more cerclage wires prior to nailing. Nails made by Synthes were used for osteosynthesis: PFN A Long in 95 patients, PFN A in 11 patients and LFN in 12 patients. RESULTS In 76 patients (64%) fractures healed within 6 months, in 107 patients (90%) within 9 months. In 11 patients (10%) nonunion was observed that required another surgery. The outcomes were assessed using the Sanders and Regazzoni scoring system. Excellent outcome was achieved in 79 cases (67%), good outcome in 25 cases (21%), satisfactory outcome in 13 cases (11%), poor outcome in 1 case (1%). DISCUSSION At any age subtrochanteric fractures are always treated surgically. Currently, intramedullary nailing is the method of choice. The outcome of the surgery depends on correct reduction and fixation which shall ensure the balance of compression forces transmitted to the medial cortical bone, traction forces transmitted to the lateral femoral cortical bone. Intramedullary nailing has biomechanical advantages which outweigh the often difficult closed reduction. The nail decreases the position vector (of the force moment) and reduces torsional forces at the fracture site. Open reduction and additional cerclage wires are described as a risk factor for impaired healing. Nevertheless, the achievement of anatomical reduction offsets the risk of poor blood supply at the fracture site. Persistent displacement disturbs the balance of forces and results in impaired healing and implant failure. CONCLUSIONS Treatment of subtrochanteric fractures relies on precise reduction. Today, when minimally invasive methods of treatment are preferred, the most commonly used are the intramedullary implants. Displacement to varosity, flexion displacement or a combination of both cause impaired healing with non-union and failed osteosynthesis. Treatment of non-union is extremely challenging and always consists in the correction of anatomical relationships. Key words: subtrochanteric fractures, surgical treatment, outcomes, complications.

• MeSH
• fraktury kyčle * diagnostické zobrazování   chirurgie   MeSH
• hojení fraktur MeSH
• intramedulární fixace fraktury * škodlivé účinky   MeSH
• kostní dráty MeSH
• kostní hřeby MeSH
• lidé středního věku MeSH
• lidé MeSH
• retrospektivní studie MeSH
• vnitřní fixace fraktury MeSH
• výsledek terapie MeSH
• Check Tag
• lidé středního věku MeSH
• lidé MeSH
• mužské pohlaví MeSH
• ženské pohlaví MeSH
• Publikační typ
• časopisecké články MeSH

PURPOSE OF THE STUDY Continuous epidemiologic data on changes in the spectrum of acetabular fractures is rare. The purpose of this study is to evaluate changes in the types of acetabular fractures over the last two decades. MATERIAL AND METHODS In the period between 2007 and 2016, a total of 522 patients were treated at the authors department (Traumacentre Level I) for acetabular fractures. 15 patients sustained bilateral fractures. The group consisted of 361 men and 161 women, with the mean age of 49 years (the range of 10-96 years). Standard procedure was applied to diagnose the fractures (X-ray and CT scan). Non-operative treatment was opted for in fractures without displacement, fractures with minimum displacement of acetabular weight bearing area less than 2 mm, confirmed by the CT scan (e.g. low fractures of anterior column, low transverse fractures), fractures with secondary congruence in patients over the age of 70, and fractures in patients contraindicated for surgery due to their serious overall medical condition or severe osteoporosis. A surgery was indicated in case of instability or incongruent acetabular joint space due to the displacement of weight bearing area fragments, or a bone fragment or soft tissue interposition. A surgery was indicated also in a non-displaced acetabular injury with concurrent femoral head injury. AO/ASIF classification was used to classify the fractures. The following data was monitored in the referred to group of patients: gender, age, mechanism of injury, associated injuries, type of fracture, and treatment method. RESULTS Type A fracture was reported in 293 patients (56%), type B fracture in 150 patients (29%) and type C fracture in 79 patients (15%). A high-energy trauma occurred in 334 patients (64%), namely 254 men and 50 women, with the mean age of 41 years. A low-energy trauma was sustained by 188 patients (36%), namely 77 men and 111 women, with the mean age of 69 years (56-91). This difference in the share of men and women with respect to the seriousness of the mechanism of injury was statistically significant (p < 0.0001). Non-operative treatment was used in 248 patients (48%), of whom 167 were men and 81 were women. The mean age in this sub-group was 60 years, namely 58 years in men and 62 years in women. Operative treatment was opted for in 272 patients (52%), of whom 206 were men and 50 were women, with the mean age of 45 years in women as well as in men. The statistical processing of differences between the non-operative and operative treatment in dependence on the type of fractures revealed a significantly higher percentage of operative treatment in type C fractures compared to type A and B fractures (p < 0.0001, or p = 0.0009). In the group of patients treated by the authors in the 1996-2002 period, type A fractures constituted 45% of all fractures, where A1 fractures prevailed with 29%, A2 fractures represented 9% and A3 fractures only 6 %. In the recent group of patients, type A fractures constituted 56%, but A3 fracture were seen in 29% of patients, which was a significant increase (p < 0.0001). A3 fractures (anterior wall or anterior column fractures) were associated with a low-energy mechanism of injury and occurred in 48% of patients (73, mostly elderly women). DISCUSSION When compared to the published groups of other authors, the monitored group showed no difference in the mean age and gender ratio. There was an obvious increase in the number of patients with a low-energy mechanism of injury. The authors believe that this is the result of population ageing. It is also related to the growing share of patients treated non-operatively. The number of patients with a high-energy mechanism injury increased to a lesser degree. The spectrum of fractures significantly changed over the last 20 years. It was caused by an increase in low-energy injuries and partly also by improved diagnostics. CONCLUSIONS In the last 20 years, the authors noticed a rise in some types of acetabular fractures. It was caused by a statistically significantly higher number of fractures with a low-energy mechanism of injury, especially in elderly patients, the so-called "fragility fractures". Therefore, the share of non-operatively treated acetabular fractures increased as well. The number of acetabular fractures in young patients as a result of a high-energy injury grew more slowly, and it was only the share of posterior-wall acetabular fractures that was significantly higher. Key words: epidemiology of acetabular fractures, mechanism of injury, types of acetabular fractures.

• MeSH
• acetabulum diagnostické zobrazování   zranění   MeSH
• dítě MeSH
• dospělí MeSH
• fraktury kostí * diagnostické zobrazování   epidemiologie   chirurgie   MeSH
• fraktury kyčle * diagnostické zobrazování   epidemiologie   chirurgie   MeSH
• fraktury páteře * MeSH
• lidé středního věku MeSH
• lidé MeSH
• mladiství MeSH
• mladý dospělý MeSH
• počítačová rentgenová tomografie MeSH
• radiografie MeSH
• senioři nad 80 let MeSH
• senioři MeSH
• Check Tag
• dítě MeSH
• dospělí MeSH
• lidé středního věku MeSH
• lidé MeSH
• mladiství MeSH
• mladý dospělý MeSH
• mužské pohlaví MeSH
• senioři nad 80 let MeSH
• senioři MeSH
• ženské pohlaví MeSH
• Publikační typ
• časopisecké články MeSH

PURPOSE OF THE STUDY Non-operative and operative treatment of acetabular fractures is associated with a risk of development of posttraumatic avascular necrosis of femoral head or with the development of posttraumatic coxarthrosis. The purpose of the study was to identify the occurrence of these two complications in patients in our group and to determine the risk factors for the development of these complications. MATERIAL AND METHODS The retrospective study was conducted in two Level I trauma centres in the period from 2009 to 2014. The group included patients with an acetabular fracture. The inclusion criteria were the following: outpatient follow-up for the period of 3 years after the injury, full radiology and CT documentation. The exclusion criteria were the following: pathological fractures, missing documentation after the union, insufficient follow-up period or dissent of the patient. The inclusion criteria were met by 192 patients, 48 women and 144 men, with the mean age of 48.9 years. The following basic epidemiological data were monitored: age, sex, cause of injury, type of fracture according to the Letournel classification, occurrence of associated injuries and type of therapy. The patients undergoing non-operative treatment as well as patients undergoing operative treatment underwent clinical and radiological examinations at 3 and 6 weeks after the injury, then at 3, 6 and 12 months after the injury, subsequent follow-up checks were done at a year-interval up to 3 years after the injury. RESULTS The posttraumatic avascular necrosis of femoral head developed in 22 patients (11.7%, 17 men, 5 women, p = 0.1159), with the mean age of 55.3 years (STDEVP 15.5, range from 22 to 82). The average time to the development of femoral head necrosis was 13.1 months (STDEVP 17.0, range from 1 to 80), median 6 months, 95% percentile 34 months. In a total of 16 patients necrosis developed within 18 months after injury, while in 6 patients after a longer period of time. Progression of coxarthrosis was observed in 63 patients (33.5%, 44 men and 19 women, p = 0.0447). Within 24 months progression was seen in 55 patients, beyond 2 years in 8 patients. Confirmed as risk factors for the development of posttraumatic avascular necrosis of femoral head and progression of posttraumatic coxarthrosis were the age 60 years and above (p = 0.0023), posttraumatic medialisation of the femoral head greater than 2 mm (p < 0.0001), displacement in the weight bearing area within the acetabulum greater than 2 mm (p < 0.0001), operative treatment (p = 0.0014), combined surgical approach (p = 0.0044), and higher caput-collum-diaphyseal (CCD) angle of proximal femur (p = 0.0142). At risk for the development of avascular necrosis were the A5 type fractures (p = 0.0214) and B2 type fractures (p = 0.0218), at risk for the development of coxarthrosis were the C1 type fractures (p = 0.0122). The isolated fractures of the anterior column were by contrast associated with a significantly lower risk for development of both the AVN (p = 0.0052) and posttraumatic coxarthrosis (p = 0.0006), the isolated fractures of the posterior wall were associated only with a higher risk for AVN and coxarthrosis summation (p = 0.0399), and the same applies to the T fractures (B3, p = 0.0200). DISCUSSION Majority of current studies regarding acetabular fractures focuses on operative treatment, short-term complications and comparison of outcomes of operative and non-operative treatment. Only a few studies are dedicated to epidemiological data, or risk factors for the development of medium-term and long-term complications. In the presented study attention was paid to two main complications arising from these fractures and requiring subsequent operative treatment: posttraumatic avascular necrosis of femoral head and posttraumatic coxarthrosis. The limitations of the study are its retrospective nature, summation of groups from two trauma centres (potential bias in patient enrolment or in assessing radiographs), lower frequency of clinical surveillance in non-operatively treated patients after healing, a fairly low number of non-operatively treated patients - especially those with osteoporosis-related insufficiency fractures. Ranking among the relative limitations is also the Letournel classification which, though most commonly used at present, shows a low level of correlation in comparisons by more evaluators. CONCLUSIONS Confirmed as significant risk factors for the development of posttraumatic avascular necrosis of the femoral head and posttraumatic coxarthrosis progression were the age of 60 and above, posttraumatic medialisation of the femoral head greater than 2 mm, displacement involving the weight bearing area of the acetabulum greater than 2 mm, operative treatment, combined operative approach. At risk are also the transverse fractures (A5 according to the Letournel classification), transverse posterior wall fractures (B2 according to the Letournel classification) and at risk for the development of coxarthrosis are both-column fractures with the high fracture line of the anterior column (C1 according to the Letournel classification). Femoral neck valgosity was a risk factor for the development of femoral head necrosis. Conversely, sex and instability of osteosynthesis detected on the radiograph within 3 months postoperatively were not confirmed as the risk factors for the development of aforementioned complications. To verify the results of this retrospective study other multicentric and prospective studies should be conducted. Key words: complications of treatment of acetabular fractures, risk factors for avascular necrosis of femoral head, risk factors for coxarthrosis.

• MeSH
• acetabulum zranění   MeSH
• artróza kyčelních kloubů etiologie   MeSH
• fraktury kostí komplikace   terapie   MeSH
• lidé středního věku MeSH
• lidé MeSH
• nekróza hlavice femuru etiologie   MeSH
• retrospektivní studie MeSH
• rizikové faktory MeSH
• Check Tag
• lidé středního věku MeSH
• lidé MeSH
• mužské pohlaví MeSH
• ženské pohlaví MeSH
• Publikační typ
• časopisecké články MeSH

• MeSH
• fraktury femuru * terapie   MeSH
• kostní cementy terapeutické užití   MeSH
• lidé MeSH
• pooperační komplikace MeSH
• retrospektivní studie MeSH
• vnitřní fixace fraktury metody   MeSH
• Check Tag
• lidé MeSH

• MeSH
• acetabulum * patofyziologie   zranění   MeSH
• chirurgie operační metody   MeSH
• fraktury kostí * chirurgie   komplikace   patofyziologie   terapie   MeSH
• infekce terapie   MeSH
• kosti a kostní tkáň patofyziologie   zranění   MeSH
• lidé MeSH
• ortopedické výkony metody   škodlivé účinky   MeSH
• peroperační komplikace chirurgie   terapie   MeSH
• pooperační komplikace chirurgie   terapie   MeSH
• poranění cév terapie   MeSH
• pseudoartróza chirurgie   terapie   MeSH
• vnitřní fixace fraktury metody   škodlivé účinky   MeSH
• Check Tag
• lidé MeSH

Anterior penetrating sacral injuries in children are extremely rare. These injuries are coupled with both a high energy mechanism (combat injury, motor vehicle accidents) and with foreign body impalement. The treatment is individual, laparotomy with penetrating wound exploration is indicated, osteosynthesis is performed in case of grossly displaced fractures, in an unstable injury to the posterior pelvic ring, and urgently in case of a neurological injury. The case report describes a 14-year-old girl with a left-sided anterior penetrating sacral injury at the level of S2/S3, who was injured during a bicycle accident (impalement on handlebars). The emergent laparotomy was performed first to treat the lesion of the sigmoid mesocolon. After 16 days the patient underwent the second operation, when open fragment reposition and sacral bone suture were performed. Both the sacral fracture and soft tissues were healed in 6 weeks. The patient was fully weight bearing and without pain. Key words:pediatric sacral fracture, penetration, treatment.

• MeSH
• colon sigmoideum zranění   chirurgie   MeSH
• cyklistika zranění   MeSH
• fraktury páteře chirurgie   MeSH
• křížová kost zranění   chirurgie   MeSH
• lidé MeSH
• mladiství MeSH
• penetrující rány chirurgie   MeSH
• polytrauma chirurgie   MeSH
• vnitřní fixace fraktury MeSH
• výsledek terapie MeSH
• Check Tag
• lidé MeSH
• mladiství MeSH
• ženské pohlaví MeSH
• Publikační typ
• časopisecké články MeSH
• kazuistiky MeSH

PURPOSE OF THE STUDY The study consists of a retroactive evaluation of results of surgical treatment in patients with periprosthetic femoral fracture after total hip replacement and a comparison with results reported in the literature. MATERIAL AND METHODS In the period from 2003 to 2013, a total of 83 patients with periprosthetic femoral fracture after total hip replacement were treated at our clinic, namely 69 women and 14 men. The mean age in the cohort was 74 years (range 47-87). The Vancouver classification was used to grade the fractures. The cohort included 31 patients with type B1 fracture, 25 patients with type B2 fracture, 8 patients with type B3 fracture, and 19 patients with type C fracture. Altogether 80 patients underwent a surgery, 3 patients with non-displaced type B1 fracture were treated conservatively. The mechanism of injury was a simple fall in 75 % of primary endoprostheses and in 56% of revision endoprostheses. The average time to fracture was 7.6 years in primary implant and 3.6 years in revision endoprosthesis. In fractures with a well-fixed stem (type B1 and C) plate osteosynthesis was used. In case of a comminution zone, osteosynthesis was followed by spongioplasty. In patients with a loose stem (type B2 and B3), the fracture was treated with a revision uncemented stem. In two cases a combination of a revision stem and a massive corticocancellous bone graft was used. The evaluation was performed using the Harris Hip Score and the minimum follow-up from the surgery was 3 years. RESULTS In the group of patients with type B1 fracture, 28 patients were treated surgically. An excellent result was achieved in 22 patients (84%), in 4 patients (16%) the result was very good. The remaining 2 patients failed to meet the requirement of the minimum follow-up of 3 years. In the group of patients with type B2 fractures, composed of 25 patients, the femoral component was replaced with a revision uncemented stem with cerclage wires or titanium tapes or cables. Osseointegration of the stem was recorded in 24 patients, one female patient died 4 months after the surgery. An excellent result was achieved in 16 patients (64%), a very good result in 4 patients (16%). The remaining 5 patients (20%) failed to meet the minimum follow-up of 3 years. In 8 patients with type B3 trauma, the reimplant of a revision stem was supplemented by spongioplasty, in 2 cases by solid corticocancellous bone grafts with cerclage. In this group osseointegration occurred in all the cases within 6-9 months. The follow-up was affected by the older age of patients and 6 patients died during the follow-up period. The requirement of a follow-up longer than 3 years was met in 2 patients (25%) only and the result was considered very good. In the group of 19 patients with type C fracture, plate osteosynthesis was performed, which was in 12 cases complemented with spongioplasty. Healing occurred within 6 months in 13 patients (72%), within 9 months in 3 patients (17%) and in 2 patients (11%) reoperation was carried out due to fixation failure. One female patient died 16 days after the surgery. An excellent result was achieved in 15 patients (83%), in the remaining three patients the follow-up was shorter than three years due to their death. DISCUSSION Periprosthetic femoral fractures after total hip replacement is a rare but feared complication. Its incidence ranges from 0.1 to 4%. It occurs most frequently 7 to 8 years after the primary implant and 3 to 4 years after the revision of endoprosthesis implantation. The main risk factor is the loosening of stem of endoprosthesis. Another risk factor is osteoporosis. Age, sex and obesity do not constitute significant risk factors. Stem stability and presence of bone defects are the main criteria in favour of surgical treatment. If the stem remains well fixed, the osteosynthesis is opted for, whereas if the stem is loose, its replacement has to be performed. The management of bone defects is an integral part of femoral reconstruction and restoration of endoprosthesis stability. CONCLUSIONS Surgical treatment of periprosthetic fractures, thanks to the introduction of new implants for osteosynthesis and development of new stems for revision endoprostheses, helps achieve ever better results. Of major importance for choosing the treatment method is correct classification of fracture and stem stability. Poor bone quality is a common feature, therefore a perfect mechanical fixation is necessary. The long-term results are affected primarily by the patient s age. Key words: periprosthetic femoral fractures, surgical treatment, results, complications.

• MeSH
• analýza přežití MeSH
• fraktury femuru etiologie   patologie   chirurgie   MeSH
• kostní destičky statistika a číselné údaje   MeSH
• lidé středního věku MeSH
• lidé MeSH
• náhrada kyčelního kloubu škodlivé účinky   MeSH
• periprotetické fraktury etiologie   patologie   chirurgie   MeSH
• reoperace MeSH
• senioři nad 80 let MeSH
• senioři MeSH
• vnitřní fixace fraktury metody   MeSH
• Check Tag
• lidé středního věku MeSH
• lidé MeSH
• mužské pohlaví MeSH
• senioři nad 80 let MeSH
• senioři MeSH
• ženské pohlaví MeSH
• Publikační typ
• časopisecké články MeSH

• MeSH
• acetabulum zranění   MeSH
• artróza kyčelních kloubů diagnostické zobrazování   epidemiologie   etiologie   MeSH
• dospělí MeSH
• fixace fraktury metody   MeSH
• fraktury femuru chirurgie   klasifikace   MeSH
• lidé MeSH
• mnohočetné fraktury * diagnostické zobrazování   chirurgie   klasifikace   MeSH
• ortopedické výkony MeSH
• pánevní kosti zranění   MeSH
• pooperační komplikace epidemiologie   etiologie   MeSH
• vnitřní fixace fraktury MeSH
• výsledek terapie MeSH
• Check Tag
• dospělí MeSH
• lidé MeSH
• mužské pohlaví MeSH
• ženské pohlaví MeSH

• MeSH
• interní fixátory MeSH
• lidé středního věku MeSH
• lidé MeSH
• ortopedické výkony metody   MeSH
• pánevní kosti * zranění   MeSH
• sakroiliakální kloub chirurgie   zranění   MeSH
• senioři MeSH
• uzavřené fraktury diagnostické zobrazování   klasifikace   terapie   MeSH
• Check Tag
• lidé středního věku MeSH
• lidé MeSH
• senioři MeSH