Interlocking Nail Research Articles

Lateral cortical notching for impaired healing of extra-articular proximal femur fractures (case report)

Introduction Dynamization of the nail can be used to improve osteoreparation during intramedullary interlocking nailing (IIN). The procedure can be difficult to perform in some sub- and intertrochanteric femoral fractures due to anatomical and functional features.The objective was to demonstrate a case of successful use of an original version of the lateral cortical notching (LCN) technique for dynamization of an intramedullary proximal nail in a patient with a nonunited subtrochanteric fracture.Material and methods The treatment was performed for a 66-year-old patient with a non-united intertrochanteric fracture of the right femur complicated by the breakage of an intramedullary nail. The LCN technique was successfully used to dynamize the IM nail.Results Radiological healing of the fracture and functional recovery of the patient were observed at a two-month follow-up. The absence of interfragmental compression in IIN could be caused by blocking of the sliding screw by the lateral cortical bone of the peripheral femur fragment. The complication could be prevented with LCN during primary osteosynthesis of the above fractures.Discussion Based on scientific publications and our clinical experience, we assumed that LCN can be indicated for failed healing of intertrochanteric AO/OTA 31A3.1–3 fractures, type 3 Boyd and Griffin trochanteric fractures and all types of subtrochanteric fractures as graded by Seinsheimer with a vector of interfragmental compression to be created along the femur axis during cephalomedullary osteosynthesis. The case report showed the mechanism of impaired consolidation in some intertrochanteric and subtrochanteric fractures of the femur.Conclusion The case report demonstrateed the successful use of the original version of the lateral cortical notching (LCN) technique for dynamization of an intramedullary proximal nail.

Effect of magnesium supplementation on diaphyseal tibia fractures: a pilot study

Background: This study aimed to assess and compare the efficacy of magnesium supplementation in patients with long diaphyseal tibia fractures who have undergone surgical management with intramedullary interlocking nailing. Methods: In a prospective, randomized trial, thirty patients were included, with half receiving magnesium (420 mg/day) along with calcium (500 mg/day) supplementation for 3 months alongside surgical treatment. Radiological outcomes were evaluated through postoperative X-rays using the radiographic union scale for tibia fractures (RUST) scoring system at 6 and 12 weeks. Results: A significant difference was observed between the two groups. Patients receiving magnesium supplementation exhibited a notable improvement in RUST score, indicating an accelerated bone healing process. Conclusions: This study demonstrates the efficacy of magnesium supplementation in achieving superior radiologic outcomes compared to patients who did not receive such supplementation. The findings suggest that adjuvant magnesium supplementation could be a viable therapeutic option to enhance bone healing outcomes in individuals with tibia diaphyseal fractures.

Fast and accurate distal locking of interlocked intramedullary nails using computer-vision and a 3D printed device

IntroductionDistal locking is a challenging and time-consuming step in interlocked intramedullary nailing of long bone fractures. Current methods have limitations in terms of simplicity, universality, accuracy, speed, and safety. We propose a novel device and software for distal locking using computer vision.Methods and materialsThe device consists of an universal ancillary clamp, a telescopic arm, a viewfinder clamp, and a radio-opaque cross. The software uses a camera photo from the C-arm intensifier and adjusts for geometric projection deformities. The software employs edge detection, Hough transform, perspective interpolation, and vector calculation algorithms to locate the distal hole center. The device and software were designed, manufactured, and tested using 3D CAD, FEM, DRR, and performance testing on phantom bones.ResultsThe device and software showed high accuracy and precision of 98.7% and 99.2% respectively in locating the distal hole center and calculating the correctional vector. The device and software also showed high success ratio in drilling the hole and inserting the screw. The device and software reduced the radiation exposure for the surgeon and the patient. The success ratio of the device and software was validated by the physical testing, which simulated the real clinical scenario of distal locking. The radiation exposure was as low as 5 s with a radiation dose of 0.2mSv, drastically reducing radiation exposure during distal locking.DiscussionOur device and software have several advantages over other distal locking methods, such as simplicity, universality, accuracy, speed, and safety. Our device and software also have some disadvantages, such as reliability and legislation. Our device and software can be compared with other distal locking methods based on these criteria. Our device and software have some limitations and challenges that need to be addressed in the future, such as clinical validation, and regulatory approval.ConclusionThe device showed promising results in terms of low-cost, reusability, low radiation exposure, high accuracy, fast distal locking, high stiffness, and adaptability. The device has several advantages over other distal locking techniques, such as free-hand technique, mechanical aiming devices, electromagnetic navigation systems, and computer-assisted systems. We believe that our device and software have the potential to revolutionize the distal locking technique and to improve the outcomes and quality of life of the patients with long bone fractures.

Comparative Analysis of Functional and Surgical Outcomes in Humeral Shaft Fractures: Interlocking Nailing vs. Dynamic Compression Plating

Background: Humeral shaft fractures account for about 3-5% of all fractures, with a 3.87% incidence in Bangladesh. These fractures often respond well to non-operative treatments like casts and braces due to the humerus's ability to tolerate malunion, leading to satisfactory outcomes. However, surgery is necessary for specific cases, including open, segmental, or pathological fractures, and when conservative treatment fails. Surgical options, like dynamic compression plates and interlocking nails, allow for quicker recovery but carry risks, including nerve damage and mechanical failure. Interlocking nails offer a less invasive option with better biomechanics but may cause shoulder complications. Aim of the study: This study aims to compare the functional and surgical outcomes of patients treated with dynamic compression plating versus those treated with interlocking nailing, to determine the most effective approach for managing humeral shaft fractures. Methods: This cross-sectional study in Department of Orthopaedic Surgery, Bangabandhu Sheikh Mujib Medical University, Bangladesh, conducted from [11/12/2022] to [20/12/2023], involved 60 patients with humerus diaphyseal fractures, divided into two groups: Group A (30 patients treated with dynamic compression plating) and Group B (30 patients treated with interlock nailing). Participants were selected based on strict inclusion/exclusion criteria, and informed consent was obtained. The study evaluated various clinical factors using standard surgical techniques. Data analysis was performed using SPSS software, with significance determined at p <0.05. Result: A prospective observational study at a tertiary care center involved 60 patients with humeral diaphyseal fractures, divided into two groups: 30 treated with dynamic compression plating (Group A) and 30 with interlocking nailing (Group B). Most participants were under 30, predominantly male, with no significant differences in age or gender distribution. Group B showed better blood management, while Group A had superior shoulder function but more shoulder stiffness. Both groups had similar operative times, elbow performance, and fracture union rates. Neurovascular deficits were more common in Group A. The study highlights different outcomes between the two treatment methods. Conclusion: This study evaluated clinical outcomes in patients, primarily under 30 years old, with a higher incidence in males and right-sided fractures. Dynamic compression plating led to longer surgeries, more significant blood loss, higher union rates, and more shoulder stiffness. Interlock nailing resulted in fewer neurovascular deficits but reduced shoulder function postoperatively.

Calcaneotalotibial arthrodesis by retrograde intramedullary nailing for Charcot osteo-neuroarthropathy of the foot and ankle

Background The Charcot’s foot and ankle presents a significant and complex clinical challenge for foot and ankle surgeons. Neuropathic arthropathy of the foot and ankle is a degenerative deformity that gradually worsens over time. It is most frequently observed in individuals with diabetic neuropathy. Aim and objectives To evaluate the efficacy, advantages, and disadvantages of calcaneotalotibial arthrodesis by retrograde intramedullary nailing for Charcot osteo-neuroarthropathy of the ankle. Patients and methods This prospective research was done on 20 cases with Charcot osteoarthropathy of the ankle using calcaneotalotibial interlocking nails at Helwan University Hospital, Al Helal Hospital, Boulak El Dakror General Hospital, and Kasr Al Ainy Hospital during the period between January 2021 and January 2022. Results Patients had both types of diabetes mellitus. As regard complications, they occurred in seven (35%) patients as follows: one patient had an intraoperative distal tibial crack during nail introduction, two patients had loosening of proximal screws and infection, three patients had skin infection at the site of distal screws, and one patient had deep infection improved with parenteral antibiotics. There was a statistically significant improvement in the American Orthopedic Foot and Ankle Society score among the studied patients with a P value less than 0.001. Conclusion We observed a satisfactory result in the treatment of severe abnormalities of the ankle and hind foot in Charcot neuroarthropathy utilizing the retrograde intramedullary arthrodesis nail. The transcalcaneal retrograde intramedullary represents a safe and efficacious fixation option.

SHORT TERM FUNCTIONAL OUTCOME OF CLOSED REDUCTION AND FIXATION OF TIBIA SHAFT FRACTURES USING UNREAMED ENDERS NAIL IN ADULT POPULATION - A PROSPECTIVE STUDY

Most of the tibial shaft fractures are the result of high energy trauma. There are various non surgical and surgical methods for managing tibial shaft fractures ranging from conservative casting, tubular external fixator, ring external fixator, open reduction and plating, reamed intramedullary interlocking nailing and unreamed intramedullary nailing. Aim of the study was to evaluate the functional outcomes of closed reduction with unreamed enders nailing as a definitive treatment option for closed tibial shaft fractures in adult population. In the study we included 150 adult patients who had sustained closed tibial fractures and underwent closed reduction and fixation with unreamed enders nailing within 12 hours of the injury. Eye of the nail, present at the distal end of the nails was locked. Total surgical time was averaged to 27.6 minutes. Evaluation was done by the time of clinical union, time of radiological union and VAS score. Ten patients had a delayed union. Two patients developed infection which was managed with oral antibiotics. In the conclusion, we found out that unreamed enders nailing procedure preserves the periosteum and its blood supply due to minimal exposure and improves the healing of fracture and decreases the incidence of infection. This method reduces the operative time, has a relatively less learning curve, reduces fluoroscopic exposure, reduces blood loss, reduces infection rate, doesnt expose the joint thus maintaining its congruity, reduces the cost of implant, reduces patient hospital stay, reduces the antibiotic usage and the implant removal at a later stage can be done as a day care procedure.

A Dilemma in the Management of Distal Tibia Fractures Solved by Minimally Invasive Percutaneous Plate Osteosynthesis Technique: A Prospective Study.

Introduction Managing distal tibia fractures is challenging for trauma surgeons because of their peculiar anatomy with less soft tissue coverage and poor blood supply. There are various treatment options for distal tibia fractures such as open reduction and plating, minimally invasive percutaneous plate osteosynthesis, and intramedullary interlocking nailing. Open reduction and internal fixation can lead to excessive soft tissue dissection and devascularization of fracture fragments. We conducted a study on the functional outcome of distal tibia fractures treated by biological fixation with minimally invasive percutaneous plate osteosynthesis. Methods A total of 23 patients with distal one-third tibia fractures, fulfilling the inclusion criteria, who were treated at St. John's Medical College Hospital with minimally invasive percutaneous plate osteosynthesis between November 2020 and November 2022 were studied using the American Orthopaedic Foot & Ankle Society (AOFAS) score at six weeks, three months, and six months postoperative follow-up. Results This study included 17 males and six females. The mean age of the study participants was 43.78 years, with most of the participants being in the age group between 51 and 60 years (29.2%, n = 7). All the study participants were employed. The mean operative time was two hours and 10 minutes. The mean duration for the radiological union was 22 weeks. The mean AOFAS score at six months was 92.43 + 5.696. There was only one case of superficial infection, which was treated with intravenous antibiotics. There were no cases of malunion/nonunion. Conclusion Minimally invasive percutaneous plate osteosynthesis is an effective treatment for distal tibia fractures avoiding most of the complications such as wound dehiscence and malunion/nonunion involved in conventional open reduction and internal fixation with plating. Therefore, we recommend this technique for all distal tibia fractures.

BACTERIAL CULTURES AND OUTCOME OF INTRAMEDULLARY INTERLOCKING NAIL IN OPEN DIAPHYSEAL FRACTURES OF TIBIAL

Background: The tibial shaft is one of the most common open long bone fractures; treatment improperly can lead to many serious complications and frequently cause permanent sequelae. Infection is one of the most common and disastrous complications of an open fracture. Therefore, determining the role of qualitative bacterial cultures in implementing the most effective antibiotics for opening tibial fractures and managing promptly and with precision is extremely important to avoid these complications and restore the patient's rehabilitation. Due to the paucity of articles exclusively dealing with this topic, we conducted a study to determine bacterial cultures and the functional outcome of intramedullary interlocking nailing in these patients. Objectives: This study assessed Bacterial cultures and the outcome of intramedullary interlocking nails in open diaphyseal fractures of the tibial. Materials and Method: A cross-sectional descriptive study was conducted on 32 patients with open diaphyseal fractures of tibial who were initially treated with thorough wound debridement and lavage, followed by surgical treatment with intramedullary interlocking nails. The qualitative method of antibiotic disc diffusion in agar (Kirby Bauer) is often applied to determine the susceptibility of bacteria to different antibiotics. All 32 patients were followed up, which was conducted using clinical criteria, and a radiographic was assessed using the RUST score. Results: In our study, the injury surgery interval was 14.54±6.304 hours. Staphylococcus aureus and Staphylococcus epiderdimis were common bacteria in open tibial fractures. The mean union time was 15.43±3.726 weeks, which was assessed by RUST score and clinical criteria. The functional outcome with Ketenjian and Shelton Criteria was excellent results in 28 (87.5%) cases and good outcomes in 4 (12.5%) cases. Conclusion: Using the intramedullary interlocking nail in open diaphyseal fractures of the tibial is an excellent procedure that leads to good results with reduced hospital stay, good range of motion, and low infection rate, leading to better union.

Functional Outcome of Solid Interlocking Nail in Open Tibial Fracture at a Tertiary Care Center: A Descriptive Cross-sectional Study.

There is a high incidence of open fractures accounting 23% of all tibial fractures. The minimal soft tissue and precarious blood supply of the shaft of tibia make these fractures vulnerable to complications. The treatment should be decided through thoughtful analysis for personality of injuries and the status of the soft tissue. Intramedullary nailing allows stable fixation with minimal soft tissues dissection and preserve the soft tissue and allows early joint motion with higher rate of union. The purpose of our study was to find the outcome of open tibial fractures lower than Gustilo type IIIb, that were treated by unreamed solid interlocking intramedullary nails. A descriptive cross-ectional study was conducted from December 2021 to June 2023 after taking approval from ethical committee. All 34 patients treated with solid interlocking intramedullary nail, without reaming for open tibial fracture during 18 months period were included in the study. Final follow up was done at one year and the outcome was assessed by Modified Ketenjian's criteria. The mean time of union rate was 15.82±3.95 weeks. Complications were: superficial infections in 4 (11.76%) patients and deep infection in 1 (2.94%) patient. Using Modified Ketenjian's Criteria, 26 (76.47%) patients had an excellent result followed by good in 7 (20.59%), fair in 1 (2.94%) and there was no case with poor outcome. Solid intramedullary interlocking nail is an effective treatment with minimal soft tissue dissection for open tibia fracture less than GA III B as it provides stable fixation with early mobilization and provides a high rate of union, less complication and early return to function.

Evaluation of the mechanical behaviour of the expandable wedge locked nail fixation in retrograde use: A finite element study

IntroductionIn literature, there have been many studies conducted to research the alternatives of standard interlocking intramedullary nailing. The expandable wedge locked nail fixation, which is thought as a new alternative to the standard interlocking nailing, has been presented in previous numerical studies. The antegrade usage of the wedge locked nail fixation has provided promising results. From this point, the aim of the study is to evaluate mechanical behavior of its retrograde usage on femur models. Additionally, another aim of the study is to investigate the effect of fracture level on mechanical properties of the fixation. Materials and methodsThe mechanical behaviors of the wedge locked nail and standard interlocking nail fixations were compared by finite element methods. Sawbones femurs having osteotomies at five different levels to simulate different fractures were fixed with wedge locked nail or interlocking nail by using retrograde approach. With respect to the fracture level, two different nail lengths were used. Axial compression load was applied to fixations. The mechanical behaviors of the fixations were evaluated with respect to stiffness of the fixations and stresses occurred on both implants and bones. ResultsAny of the wedge locked nail fixation did not slip at canal. The stress and stiffness results were mostly close with each other for both nail types. The maximum stresses at locking elements or bones contacting these elements increased with decreased distance between the fracture and relevant locking elements. DiscussionThe wedge locked nail fixation showed comparable results to the standard interlocking nail fixation with respect to the stiffness and stress. Under axial loading, wedge locked nail provided a secured fixation without any slippage and preserved its position inside the medullary canal. It may be thought as a safe alternative to the standard interlocking nail fixation for retrograde usage. Additionally, according to stress results, it is advised to the surgeons to avoid a close locking to the fracture line.

Effect of Denosumab Injection in Early Union and Consolidation o f Callus in Aseptic Tibial Shaft Non-union

Fractures of the tibial shaft is one of the most common fractures than any other long bone fractures in the human body. Surgical treatment offers better functional outcome than a conservative management. Reamed intramedullary interlocking (IMIL) nailing is the treatment of choice for most of the closed tibial shaft fractures. Despite after a good surgical fixation non-union still persists after reamed IMIL nailing. Plate augmentation and bone grafting with nail in situ was found to have superior results and union rates than any other methods, but the average union time was almost 3 to 5 months. To enhance faster union and recovery here we have used Injection Denosumab 60 mg Sc post operatively during follow up. So, the aim of the study is to find the efficacy of injection Denosumab in enhancing early union and consolidation of callus. It is a comparative prospective study involving 43 patients treated for aseptic non-union of tibial shaft fractures following reamed intramedullary interlocking nailing between 2020 and 2023. All the patients treated by reamed intramedullary interlocking nailing who met the inclusion and exclusion criteria were included in the study. Group A was managed with plate augmentation and bone grafting following non-union IMIL nailing and Group B was managed with Plate augmentation bone grafting with Injection Denosumab Sc post operatively. Both the groups were followed up post operatively for period of one year. Total of 43 patients were included in the study. The average duration of union in GROUP A -14.82 weeks and in GROUP B- 9.45 weeks. Excellent results were obtained in both the groups. There was no complication such as malunion, non-union, implant loosening, nerve palsy, infection and plate/IMIL nail breakage. Augmentation plating, decortication and autogenous iliac crest bone grating is a better treatment option compared to exchange nailing in case of tibial shaft aseptic non-union following IMIL nailing. Using injection denosumab 60mg Sc postoperatively after plate augmentation and bone grafting offers early union and early consolidation of callus. Keywords Tibial Shaft Fractures, Intramedullary Interlocking Nailing, Plate Augmentation, Bone Grafting

Retrospective study of the early clinical experience with a precontoured angle-stable interlocking nail for fracture repair in dogs and cats.

To report indications, outcomes, and complications with a precontoured angle-stable interlocking nail (CAS-ILN). 90 client-owned animals. Dogs and cats treated with the CAS-ILN between 2020 and 2022 were retrospectively reviewed. Collected data included body weight, fracture configuration, percentage of medullary canal filled, limb alignment, complications, and follow-up. Favorable outcomes were defined when full functional restoration was observed. Thirty-eight dogs and 52 cats were included. Median body weight was 4.3 kg (range, 1.5 to 6.7 kg) for cats and 25 kg (range, 6.8 to 54 kg) for dogs. A total of 54 femurs, 31 tibias, and 5 humeri were treated, including 65 comminuted fractures and 26 metaphyseal fractures. The median percentage of medullary canal occupied by the nail was 76.5% (range, 53% to 97.6%). Radiographic postoperative bone alignment was good in 85.5% (59/69) and satisfactory in 10 cases. The median duration of follow-up (57/90) was 476 days (range, 56 to 1,057 days). In the perioperative period (0 to 12 weeks), lameness had resolved or was mild in all (51/52) but 1 case. In the long-term postoperative period (> 12 months), 97.1% (34/35) of cases showed restoration of full function and 1 case had an unacceptable function. An overall complication rate of 11.5% (7/61) was reported including 1 catastrophic and 6 major complications. Long-term functional outcomes following the CAS-ILN were favorable in 97.1% (34/35) of cases. Complication rates were comparable to previous studies. The CAS-ILN appears to be an alternative surgical option for most long-bone fracture repairs.

Functional Outcome of Lower Limb Long Bone Trauma Management in Pregnant Mothers: A Prospective Study of 30 Cases From a Tertiary Care Centre in North India.

The occurrence of orthopedic injuriesduring pregnancy carries considerable morbidity and mortality for both the mother and fetus. Successful care of lower limb fractures during pregnancy requires a multidisciplinary approach. Both operative and non-operative treatments must be taken into account by the treating orthopedic physician. There is limited literature available on the management of these lower limb fractures in pregnancy, and peri-operative management of this obstetric and orthopedic trauma is largely unclear. Trauma during pregnancy is a common cause of non-obstetrical maternal death, having a significant public health burden to both the mother and child. The aims and objectives of this study were to review the common causes of lower limb long bone trauma during pregnancy and their functional outcome in terms of morbidity and mortality. This study evaluates various operative and conservative methods of treatment to provide a comprehensive management approach to pregnant patients with lower limb trauma. A prospective study on functional outcomes of 30 pregnant females who were admitted with lower limb long bone fractures from 2017 to 2021 was done. The patients were randomly selected intra-operatively for various procedures based on the surgeon's preference. All patients were followed for two years or till union occurred, and the radiographic union score for tibial (RUST) and modified radiographic union score for tibial (mRUST) fracture criteria were used to assess bony union clinico-radiologically. Results: During this study, the mean age of patients was 27 years (range 19-38), having right-side (53.33%) predominance with road traffic accidents (n=22) and falls (n=6) as the most common causes of injury. Two cases of domestic violence were also reported. In our study, the maximum number of cases was 17-25 weeks of their gestation; 12 (40%) patients had tibial fractures, and 18 (60%) had femoral fractures. Six tibial fractures were handled conservatively, while all femoral fractures required surgical intervention. Out of 18 femoral fractures, which were treated surgically, dynamic compression plating was done in 15 (83.33%) patients, while interlock nailing was done in three patients. Six tibial fractures have been operated upon, two (66.66%) with dynamic compression plating and four (33.33%) with an interlocking nail. A multidisciplinary approach in terms of both operative and non-operative methods must be taken into account for treating pregnant mothers by the orthopedic physician while carefully weighing the benefits and risks of both procedures. Based on the pattern and displacement of the fracture, many prenatal fractures can be treated conservatively. Another alternative that is frequently safe is to postpone the surgical procedure until childbirth. The physiologic changes associated with pregnancy and any potential dangers to the fetus must be taken into account by the orthopedic surgeon when fractures necessitate surgical intervention. The surgeon is responsible for the patient's correct placement, the C-arm's use, the radiation dose, and the intra-operative fetal monitoring, as well as the danger brought on by anesthetics, antibiotics, analgesics, and anticoagulants.

A Comparative Analysis of Locking Plate versus Intramedullary Nail for Humerus Shaft Fractures

Introduction: Humerus shaft fractures pose a significant challenge in Orthopaedic practice, with various treatment approaches available, including surgical methods like conservative management, Plating and Nailing. The choice between these methods remains debatable, necessitating further comparative studies. Methods: This study compared Open Reduction Internal Fixation (ORIF) with Locking Compression Plates and Closed Reduction Internal Fixation (CRIF) with Intramedullary Interlocking nails for Humerus shaft fractures. Patients were categorized into two groups based on the intervention received. Perioperative parameters, radiological outcomes, and complications were assessed. Results: Baseline demographics were comparable between the two groups. The Plating Group had longer surgery duration and higher blood loss compared to the Nailing Group. Both groups had similar rates of union and non-union, with no significant difference in shoulder function and pain outcomes at one year post-operation. Discussion: Functional outcomes post-union remain acceptable despite notable deformities, suggesting the viability of conservative treatments. While ORIF with plating has been conventional, concerns over blood loss and nerve injury have led to exploration of CRIF with intramedullary nails. This study, consistent with previous findings, found no significant disparity in outcomes between the two methods, emphasizing the need for personalized treatment decisions. In conclusion, this study adds to the understanding of Humerus shaft fracture management, highlighting the need for individualized treatment decisions and further research in this field.

Wedge osteotomy combined with internal fixation in the treatment of Mayo IIB olecranon fractures.

This study aimed to biomechanically compare the maximum rotational, axial movements, and compression forces between fracture fragments before and after 1-4 mm fracture site resorption among interlocking nails, compression nails, and newly designed compressive anti-resorption (CARES) nails compressed with tube and coil spring. We determined the maximum axial/rotational movements and interfragmentary compression loads between fragments on 10 interlocking nails, 10 compression nails, and 10 CARES nails with 30 composite femurs. Using a compression-distraction testing device, 6 N·m external and internal torques were applied, and we evaluated the maximum rotational and axial displacement between fragments after 1-4 mm fracture site resorption. When 6 N·m of internal-external rotation torque was applied after 2 mm fracture site resorption, the maximum rotational displacement between fragments in the CARES nail was 3 ± 0.52 mm, 101% less than the 6.03 ± 0.83 value in the compression nail and 100% less than the 6 ± 1 mm value measured in the interlocking nail (P=.000). The compression between fragments was 298 ± 72 N in the CARES nail after 1 mm of resorption, while this value was measured as 0 in the other nails. There was a significant difference in rotational, axial stability, and interfragment compression among the different femoral nails after 1-4 mm fracture site resorption. The CARES nail having additional coil springs seems significantly biomechanically superior to compression nails and interlocking nails, providing maximum rotational, axial stability, and interfragment compression after fracture site resorption.

Functional outcome of femur interlock nailing in shaft femur fractures in adults

Functional outcome of femur interlock nailing in shaft femur fractures in adults

A Major Orthopaedic Surgery in a Hundred-year-old Patient During Pandemic of COVID 19: A Case Report

It has been undoubtedly assumed that COVID-19 imposes an immense economical and psychological trauma to all common people. It is also true that COVID-19 had been appeared like a “world war” for health care workers all over the world. However, either conservative or operative treatment were offered for all trauma patients even during that period. We report a 100 years old female patient with femoral shaft fracture who was treated with intramedullary interlocking nail with full precautions to prevent virus transmission during lock down period. The post and perioperative complications were uneventful, and she was walking comfortably after surgery. Keywords: COVID 19; Femoral fracture; Lock down; Pandemic

An Experience in Managing an open Fracture Shaft of the Femur Due to a Gunshot with Intramedullary Interlocking Nailing

Objective: To evaluate functional outcomes and complications in gunshot femur shaft fractures treated with intramedullary nailing primarily. Study Design: Prospective longitudinal study Place and Duration of Study: Department of Orthopaedic Combined Military Hospital, Nowshera, Combined Military Hospital Sialkot, Combined Military Hospital, Rawalpindi Pakistan, from Jan 2016 to Dec 2021. Methodology: A total number of 53 cases of open fracture of the femur shaft due to gunshot were included in the study. After initial wound debridement, an X-ray was taken, and fractures were classified according to the Gustilo–Anderson classification. All fractures were fixed with titanium I/M I/L Nail in static mode by the same orthopaedic surgeon. Rehabilitation was instituted immediately after the operation, and the outcome was assessed in regards to infection, range of motion at the knee, full weight bearing and radiological union achieved. Results: Thirty-four (64.15%) patients had Type-1 fractures of the femur shaft, and 19(35.8%) patients had Type-2 fractures. Fracture union was observed in 47(88.67%) patients after three months and 6(11.32%) over the next five months. Complications were wound infections 5(9.44%), leg length discrepancy 4(7.53%), and non-union 2(3.77%) at six months. In these two cases, bone grafting was done, and union was achieved. Conclusion: Primary intramedullary (IM) is the preferred mode of treatment of Type 1 and 2 shafts of femur fractures if early good debridement is done. It avoids secondary procedures, has fewer complications and helps in early mobilization.

Ilizarov Fixator-Assisted Management of Neglected Femur Fractures by Open Intramedullary Nailing: A Case Series.

Fourteencases of NFFspresented to Kalinga Institute of Medical Sciences, Bhubaneswar, India, between January 2020 and June 2022 were recruited for the study. After preoperative evaluation and explanation of available treatment options to patients, they were operated on with a two-stage procedure of Ilizarov fixator application, followed by intramedullary interlocking nailing, with a period of gradual distraction in between. They were then followed up for a minimum of 12 months to assess functional and radiological outcomes. The average time for all of the fractures to heal was 25.2weeks. The average knee flexion increased from 28.2degrees before surgery to 87.1degrees after surgery. All 14 patients could walk with complete weight bearing on the operated limb postoperatively after proper pain control measures were taken.The mean Tegner Lysholm knee score was 77.8. There was residual limping in six of the cases, which could be attributed to muscle atrophy and/or shortening in the affected limbs. In three cases, skin blisters were formed due to the acute nature of the distraction, but they all healed with a scab and scar, otherwise uneventfully. The shortening, in 13 cases, came down to 4 cm or less, which was managed with a shoe raise. The one case with a residual 5 cm shortening had a short, limping gait, and it was attributed to an extremely overriding osteopenic femur preoperatively. A two-stage operation with distraction by an Illizarov fixator followed by an intramedullary fixation provides the basic advantage of not having to excise an excessive amount of bone, which may be required in primary open reduction and intramedullary fixation. It also allows the patient to carry on his daily activities as mobilization is not restricted, which is the case in an individual to whom skeletal traction is applied. Hence, in any NFFcase, this algorithm of management can be considered a frontrunner in the comprehensive management of disability and deformity.

The value of ultrasonography in predicting the outcomes of simple long bone fractures treated by closed intramedullary nail fixation

PurposeUltrasonography has been used increasingly in orthopaedic practice credited to its low cost, easy accessibility, non-invasiveness, reproducibility, and safety from radiation. The purpose of this study was to test the validity and efficacy of ultrasonography as an adjunct in the assessment of fracture healing in long bones treated with intramedullary interlocking devices and its predictive value in determining the need for a secondary surgical procedure. MethodsThis was a descriptive longitudinal study of 40 skeletally mature patients who sustained long bone fractures of the tibia or femur treated using intramedullary interlocking nails. Patients with comminuted and segmental fracture patterns were excluded from the study. Each patient was evaluated at 6- and 12-week post-surgery using standard orthogonal radiographs and ultrasonography to assess fracture healing. Patients were then followed up until fracture union. Quantitative data was analyzed using frequency statistics and descriptive data with inferential statistics. ResultsUltrasonography predicted 87.5% union and 12.5% delayed or non-union as early as 6 weeks after surgery, while radiographs predicted 22.5% union as late as 3 months of follow-up. The sensitivity and specificity of ultrasonography in assessing fracture healing were 100% and 97.2%, respectively, with a positive predictive value of 80.0%. Vascular resistance index was less than 0.5 in all patients who developed delayed or non-union. ConclusionUltrasonography is able to predict fracture outcomes much earlier than standardized radiographs with comparable sensitivity and specificity. Vascular resistance index is an objective parameter in assessing callus quality and predicting fracture outcomes.