Ilizarov External Fixator Research Articles

Orthopedic Treatment of Pycnodysostosis: A Systematic Review.

Pycnodysostosis (PYCD) is an autosomal recessive lysosomal storage disorder of the bone which leads to stereotypical abnormalities consisting of, but not limited to, sclerotic and fragile bone, shortened distal phalanges, and obtuse mandibular angle. Current literature describes the otolaryngological manifestations and treatment of this disorder; however, the treatment of orthopedic fractures in PYCD patients is seldom described and remains a controversial topic. We aim to systematically review the current evidence regarding the optimal treatment of PYCD patients with fractures.We performed a literature search using PubMed, MEDLINE, Web of Science, and Google Scholar databases. Elig­ibility criteria consisted of English-language literature of PYCD patients undergoing treatment for orthopedic surgery fractures. Non-English papers or literature focused on maxillofacial manifestations/treatment were excluded.The database search resulted in the identification of 500 articles. After removing duplicates and enforcing our inclusion criteria, 29 case reports/series (40 patients) were included. The average age was 31.25 (­±18.2) years, with 57.5% of patients being female. Overall, 62.5% of patients had consanguineous parents. Additionally, 86.2% reported a history of previous fractures while 47.5% reported a spontaneous or minor trauma fracture, with most fractures occurring in the femur (60.0%) and tibia (40.0%). Radiographic features consisted of densification in the femur 45.0% (18/40), tibia 37.5% (15/40), and spine 25.0% (10/40). Overall, 84.2% of patients were treated with surgical management consisting of internal plate fixation (IPF) (48.3%), intramedullary fixation (20.7%), and Ilizarov external fixation (IEF) (13.8%). Overall, the refracture rate was 25.0% and was lowest in intramedullary fixation (0/6), compared to IPF (3/14) and IEF (3/4). Average time until refracture was 40.6 months (3-132 months).Long-term follow-up is recommended in patients with PYCD due to the propensity for fractures/refractures. While this study provides the groundwork for the treatment of PYCD patients, further research with higher-evidence studies should be conducted to establish the optimal orthopedic treatment of this disorder.

Hinge positioning method of Ilizarov apparatus in correcting radial head luxation caused by multiple hereditary exostoses.

Objectives In this study, we present a specified hinge positioning method to achieve satisfying and steerable lengthening and angulation to correct forearm multiple hereditary exostoses (MHE) combined with severe radiocapitellar joint dislocation using Ilizarov ring fixators.Patients and methods Between January 2014 and December 2018, a total of 30 forearms of 23 patients (11 males, 12 females; mean age: 18.3±6.8 years; range, 8 to 35 years) who suffered from type IIa (n=2) or IIb (n=28) MHE with severe radiocapitellar joint luxation were retrospectively analyzed. All patients were treated with Ilizarov external fixators with our specified hinge positioning method. Range of motion of the elbow, forearm and wrist and Visual Analog Scale (VAS), as well as Disabilities of Arm, Shoulder, and Hand (DASH) score, and radiological parameters, including radial articular angle (RAA), ulnar variance (UV) and carpi slip (CS), were recorded preoperatively and at final follow-up and were compared.Results Clinical and radiological outcomes were evaluated. Range of motion of the elbow, forearm and wrist, VAS, DASH and radiological features, including RAA, CS, and UV were significantly improved, except for range of motion of the forearm supination. Temporary nail track infection was seen in two of the forearms and was controlled with oral antibiotics. None of the patients developed radial head dislocation again.Conclusion Clinical and radiological outcomes of this novel hinge positioning method are satisfactory in treating MHE with severe radial head dislocation, and this method can be an alternative treatment for MHE by setting a milestone for accurate radiocapitellar joint reduction.

The Current Role of Ankle Arthrodesis in Hemophilic Patients.

There are several manners to take care of the hemophilic ankle in the initial phases of degeneration of the articular cartilage, in the event that hematologic prophylaxis is unsuccessful in accomplishing no bleeds. Some of these are nonoperative, with which management must start. These are Physical and Rehabilitation Medicine protocols and the utilization of orthoses (patellar tendon bearing). When these are unsuccessful, more aggressive types of treatment can be utilized, such as radiosynovectomy and some surgical operations (open or arthroscopic removal of anterior osteophyte of the distal part of the tibia, arthroscopic ankle debridement). Nonetheless, in the late phases of degeneration of the articular cartilage (advanced arthropathy), the solely options are surgical: ankle fusion or total ankle arthroplasty. The review of the literature has shown that the percentage of consolidation is between 90% and 100%, and that the percentage of postoperative infection is between 0% and 10%%. When the Ilizarov external fixator is utilized for ankle fusion, the percentage of pin tract infection is around 14%. Ankle fusion is a secure surgical technique that meliorates articular pain and improves the quality of life of hemophilic patients.

Ankle joint salvage and reconstruction by limited ORIF combined with an Ilizarov external fixator for complex open tibial pilon fractures (AO 43-C3.3) with segmental bone defects

BackgroundOpen pilon fractures combined with sizeable segmental bone defects are rare, difficult to treat, and often result in the loss of ankle joint function. The purpose of this study was to determine clinical outcomes in patients with open pilon fractures and sizeable segmental bone defects treated by limited ORIF combined with an Ilizarov external fixator.MethodsWe conducted a retrospective analysis of open pilon fractures with sizeable segmental bone defects treated by limited ORIF combined with the Ilizarov external fixator strategy between July 2014 and August 2019. All patients were included for assessments of fracture healing and infection rates. Ankle functional outcomes were assessed in all patients according to the Paley criteria and American Orthopedic Foot and Ankle Society Score (AOFAS) at least 24 months post-injury.ResultsAll patients were followed up for a mean of 41.09 months. The mean bone defect size was 5.64 ± 1.21 cm. The average EFI and BTI were 1.56 ± 0.28 months/cm and 11.12 ± 0.74 days/cm, respectively. According to the Paley evaluation system, the success rate of ankle joint reconstruction was 64% (7/11). The mean score based on the AOFAS functional assessment was 77.73 ± 8.87. Five patients showed posttraumatic arthritis, one of whom required ankle arthrodesis. Three patients developed pin site infections, and one patient developed a deep infection after bone grafting.ConclusionThe strategy of limited ORIF combined with an Ilizarov external fixator can restore ankle function in most patients with complex open tibial pilon fractures. Ankle stiffness, pin tract infection, and traumatic arthritis were the most common complications associated with this therapy.

Management of Infected Non-union Tibia with Ilizarov External Fixator: Study on Tertiary Hospital in Bangladesh

Introduction: Infection is the most prominent cause of delayed or non-union in tibial fractures because of the bone's sensitive subcutaneous location. Ilizarov external fixator application is regarded as the best approach for treating them because of several benefits. Analysis of the role of Ilizarov fixation in infected tibial non-union was the goal of this investigation and evaluating clinical & functional outcomes of infected tibial non-union. Materials and Methods: A Multicenter based non-randomized quasi-experimental prospective study was performed in Rajshahi Medical College Hospital, Rajshahi, Bangladesh. From 1st January 2015 to 31st December 2020. The study comprised a total of 61 (n=61) Tibial non-union patients treated with the Ilizarov fixator who also had an infection. ASAMI score criteria were used to evaluate the outcome. Results: The most common organism for infection was identified to be at Staphylococcus Aureus. The final follow-up showed that all but one patient had achieved union; one patient had to amputate due to infection and non-union. ASAMI score rating methodology for bone and function results rated the majority of patients as outstanding. Pin tract infections were the most prevalent problem discovered in this research. Conclusion: The Ilizarov external fixator is safe and successful for treating infected non-union of the tibia since it can offer a stable mechanical environment, bone transfer, rectify deformities, eradicate the infection, and allow patients to bear weight. Therefore, we still suggest it despite its disadvantages.

Femoral lengthening using ilizarov ring fixator and slotted plate

Background: Femoral lengthening is generally considered a cumbersome procedure due to the long fixator duration and complexity of the surgery. Lengthening over nail and lengthening over plate (LOP) have solved most of the problems but are associated with the risk of deep infection and plate prominence, respectively. We report a series of 14 cases with the use of a slotted plate to minimize both the problems. Materials and Methods: The study includes 14 patients, 8 females and 6 males, including four children. The average age of patients was 17.8 years, ranging from 7 years to 30 years. Femoral lengthening was performed with Ilizarov external fixator and slotted plate. Results: The target length ranged from 3 cm to 7 cm with an average of 4.6 cm. External fixator duration achieved ranged from 42 days to 92 days with a mean external fixator duration of 61.5 days. The mean external fixator index was 13.3 days/cm. We had no incidence of plate prominence or deep infection. We had four cases of knee stiffness, of which one needed surgery. All the patients had good quality regenerate and consolidation. Conclusion: The use of a slotted plate for LOP in femoral lengthening is a useful technique to minimize the incidence of plate prominence associated with LOP.

Comparison of Functional and Radiologic Outcomes of Pilon Fractures Treated with Ilizarov External Fixator and Minimally Invasive Plate Osteosynthesis

Comparison of Functional and Radiologic Outcomes of Pilon Fractures Treated with Ilizarov External Fixator and Minimally Invasive Plate Osteosynthesis

Outcomes of open Tibia Fracture using Ilizarov Ring Fixator

Background: Currently, there has been a rise in severe trauma that occurs as a consequence of road accidents. Different treatment modalities are used for open tibia fracture but currently ilizarov ring fixator is used with better outcomes. Objective: To assess the outcomes of open tibia fracture using ilizarov ring fixator Methodology: This prospective study was carried out at the Orthopedic Department of Mercy Teaching Hospital Peshawar for duration of two years from November 2019 to November 2021. The Ilizarov ring fixator was scheduled for all of the participants in our research. Proper radiographs of the affected leg were acquired, comprising antero-posterior and lateral views. Postoperative radiographs were also collected. All the data was analyzed statistically by using SPSS version 24. Results: In this study, totally 40 patients were included. Based on radio-graphical results, 10 (25%), 18 (45%) and 12 (30%) and 00 (00%) patients have excellent, good and fair and poor results respectively while on the basis of functional outcomes, 12 (30%), 22 (55%), 2 (5%) and 4 (10%) patients have excellent, good and fair and poor results respectively. Complications like pin tract infection, superficial skin infection and chronic osteomyelitis were observed in 10 (25%), 6 (15%) and 2 (5%) patients respectively. Conclusion: Our study concludes that ilizarov external fixator can be effectively used for the management of open tibial fractures. Keywords: Open tibia fracture; Ilizarov ring fixator; Radiographs; Complication

Comparative Study of Two Different Disinfectant Solutions Used for Pin Site Care in Patients with Ilizarov Ring Fixation

The Ilizarov ring fixation system is used to treat fracture, osteomyelitis, and bone lengthening. Wires and pins are used in order to fix the Ilizarov frame to the affected bone. In patients with Ilizarov ring fixators, pin site infections (PSI) are the most prevalent problem seen by orthopaedic surgeons. Pin sites are prone to infection because the skin barrier is lost or broken, disrupting the body's natural defense against bacterial infection.
 This was a cross sectional study and 30 patients divided in 2 equal groups, each contained 15 patients were taken under study. The present study included patients treated with Ilizarov external fixators post-injury and followed-up at Orthopedic OPD by history, clinical examination and radiological evidence. 235 pin sites were examined -in all the 30 patients. Demographic information, socioeconomic status, and health status were asked and recorded in the patient identification forms. It was found that, Only 19 of the 125 pins cleaned with chlorhexidine showed evidence of infection, but 32 of the 110 pins cleaned with povidone iodine solution showed infection (p value 0.05This was found to be statistically significant. In the participating groups, the location of infection was not important. The povidone iodine group had the first-degree infections, followed by second- and third-degree infections. According to the Checketts otterburn classification scale, the chlorhexidine group did not report any third-degree infections.

Long-term results of the subtubercle tibial osteotomy using the circular external fixator for medı̇al compartment osteoarthrı̇tı̇s of knee

BackgroundWe evaluated the long-term clinical and radiographic outcomes of patients who underwent subtubercular tibial osteotomy (STO) with Ilizarov external fixation used for high tibial osteotomy for medial knee osteoarthritis (MKOA). MethodsBetween October 2003 and December 2011, 42 knees of 40 patients who had undergone STO with Ilizarov external fixator with a diagnosis of MKOA were evaluated. Survival analysis was performed by examining the duration of total knee arthroplasty (TKA). Clinical and radiological variables were collected at the time of admission after removal of the fixator and at outpatient follow up. ResultsMean age was 49.3 ± 5.68 (range 37–61) years, mean postoperative follow up time was 14.22 ± 2.93 (range 9–18) years, and mean fixator duration was 14.6 (range 13–20) weeks. Survival analysis showed 100% at 5 years, 95.2% at 10 years and 88.1% at 15 years. Clinical examination of the patients showed significant improvement in American Knee Society score (KSS), KSS functional score and Oxford Knee Score (OKS) score (P = 0.005). In the study, it was observed that the patients' knee osteoarthritis had progressed over time. On examination, radiographic measurements including mechanical axis deviation, medial proximal tibial angle, femorotibial angle, and joint line alignment angle improved significantly after deformity correction (P = 0.001). ConclusionSTO using the Ilizarov method offers long-term survival. It provides effective treatment in young patients with isolated MKOA. Achieving the desired amount of correction in the coronal and sagittal planes can be presented as a surgical technique for the treatment of MKOA as an effective method in clinical and radiological correction.

Technique and outcome of ankle fractures treated with Ilizarov External Fixator: A case series of four patients.

Technique and outcome of ankle fractures treated with Ilizarov External Fixator: A case series of four patients.

Preliminary analysis of the clinical characteristics of 1 012 patients with secondary lower limb deformity of spina bifida from QIN Sihe Orthopedic Surgery Case Data between October 12, 1986 and December 31, 2020

To analyze the characteristics of patients with secondary lower limb deformity of spina bifida based on the QIN Sihe Orthopedic Surgery Case Data, and provide the references for clinical research, diagnosis, and treatment. A clinical data of 1 012 patients with secondary lower limb deformity of spina bifida between October 12, 1986 and December 31, 2020 selected from QIN Sihe Orthopedic Surgery Case Data was retrospectively analyzed. Among them, 231 cases (22.83%) had undergone orthopedic surgery for lower extremity deformities in other hospitals. The gender, age at surgery, indicators related to spina bifida (deformity side, comorbidity, sensory disturbance level), and information related to surgery (operating time, surgical site, postoperative fixation method) were analyzed. Of the 1012 patients, 457 were males and 555 were females. The age was 3-51 years at the time of surgery, with a median of 18.0 years; among them, the 15-30 years old group had the most patients, accounting for 53.16%. Most deformities involved both lower limbs (652 cases, 64.43%). There were 111 cases of ulcers in the weight-bearing area of the foot, 265 cases of gatism, 554 cases of sensory disturbance, and 85 cases of abnormal hair on the waist. From 2010 to 2019, there were significantly more patients undergoing surgery than before 2010, reaching 61.17%. Sensory disturbances mostly occurred in the ankle and foot. A total of 1 149 sites were treated with surgery, of which the most ankle joint deformities were corrected by surgery, accounting for 84.33%. The main fixation methods after orthopedic surgery were external fixation, including Ilizarov external fixation (442 cases), combined external fixation (315 cases), and plaster fixation (189 cases). Spina bifida can be secondary to severe deformities of the lower limbs, mainly in the ankles. Common complications include ulcers in the weight-bearing area, dysfunction of urine and feces, and sensory disturbances; external fixation is the main method of fixation after surgery.

Modified osteotomy for treatment of forearm deformities (Masada IIb) in hereditary multiple osteochondromas: a retrospective review

PurposeApproximately 30% of patients with hereditary multiple osteochondromas (HMO) have forearm deformity and dysfunction. The aim of this retrospective study was to review our experience with the surgical treatment of children with HMO and Masada IIb forearm deformities.MethodsData of eight children treated for HMO Masada IIb forearm deformity at our hospital between 2015 and 2019 were collected from the hospital records and retrospectively reviewed. All patients underwent ulnar lengthening by distraction osteogenesis using either the Orthofix or Ilizarov external fixator. Range of movements at the elbow and wrist joints, and forearm supination/pronation, before and after the operation were recorded. Radiographs were evaluated by the Fogel method, and wrist joint function by the Krimmer method.ResultsFollow-up radiographs showed significant improvement in relative ulnar shortening after treatment (pre-operative 9.23 ± 5.21 mm; post-operative 0.33 ± 4.13 mm). Changes in radial articular angle (pre-operative 33.55° ± 3.88° to 32.78° ± 6.57°) and carpal slip (pre-operative 45.00% ± 19.09%; post-operative 43.13% ± 16.68%) were not significant. Elbow flexion and extension, wrist flexion and extension, ulnar and radial deviation at wrist, and forearm rotation were significantly improved after surgery. Wrist function was graded as excellent in seven patients and as good in one patient. One patient treated with the Ilizarov external fixator had poor radial head reduction.ConclusionUlnar lengthening with distraction osteogenesis is an effective treatment for HMO Masada IIb deformities. The optimum site for ulnar osteotomy appears to be at the proximal one-third to one-fourth of the ulna.

Outcomes of Ilizarov Ring Fixator in Infected Nonunion of Tibia

Objective: This study was designed to evaluate the effectiveness of Ilizarov. We aimed to explore the infection rate, bony union, and functional outcomes of Ilizarov fixators.
 Methodology: This retrospective study was conducted in Orthopedic department of Bolan Medical Complex Hospital Quetta Pakistan from June 2020 to June 2021. In this timeframe total of fifty-five patients of infected nonunion tibia were enrolled for Ilizarov technique treatment. For surgical intervention, patients were placed in a supine position on a radiolucent table. Ilizarov fixator was prepared on the behalf of patient's limb length, infection site, and ankle and knee functional status. We applied assembled Ilizarov fixator at the tibial shaft while keeping in mind that the rings were positioned in on the proximal and distal fragments. The ring was placed parallel to the joints whereas pins were inserted perpendicular to the tibial mechanical axis.
 Results: A total of 55 patients were recruited for this study. The mean age of the selected participants was 45.65±16.69 years. The overall successful bone results of the ASAMI score were observed as 80% whereas 88% functional outcomes were achieved. In bone results, we observed 28 (50.9%) cases with excellent results, 16 (29%) with good, 7 (12.7%) with fair, and 3 (5.4%) with poor outcomes. On the other hand, 25 (45.4%) cases observed excellent functional results, 25 (45.4%) with good, 4 (7.6%) with fair, and 2 (3.6%) with poor outcomes.
 Conclusion: Our results show a high success ratio therefore we recommend Ilizarov external fixators for infected nonunion tibial fracture. This method helps to recover limbs without any amputations. However, the discomfort of patients is one of the main problems with this method of treatment.

Configuration synthesis and structural design of lower-mobility parallel external fixators based on corrective degree-of-freedom classification

Foot and ankle deformity remains a common presenting complaint in orthopedic surgery. External fixator is a key medical device to assist gradual correction. Its configuration selection has a significant influence on correction results. Among two external fixators currently used in clinic, conventional Ilizarov external fixator (IEF) has high use difficulty and low accuracy, whereas the single configuration of later hexapod external fixator (HEF) leads to inadequate adaptation to diverse deformity types in foot and ankle. To solve the above problems, this paper presents a novel parallel distraction apparatus (PDA). First, corrective degree-of-freedom (c-DOF) is defined to determine expected posture transformation of external fixator required by corrective manipulation. By summarizing and classifying c-DOF, predominant foot and ankle deformities with fewer correction requirements are divided into six types. Subsequently, six lower-mobility parallel mechanisms are introduced as the configurations of external fixators via the c-DOF based configuration synthesis approach. After performing reconfigurable structural design, PDA can respectively form six types of parallel external fixators for six deformity types. Finally, clinical case simulations are provided to verify the application potential and advantages of PDA.

Treatment of Tibial Plateau Fractures By Circular External Fixator

Background: Tibial plateau fracture is challenging for orthopaedic surgeons because of the severity of trauma and associated soft tissue injuries. The treatment goals are to anatomically reconstruct the proximal tibial articular surface, restore limb axial alignment, and fix metadiaphyseal comminution to allow early knee mobilization and weight bearing.Aim: To evaluate the functional, clinical and radiological outcomes of treatment of high energy tibial plateau fractures by circular external fixator ± percutaneous screw fixation.Patients and Methods: Between June 2018 and July 2019, 20 tibial plateau fractures in 20 patients were treated with Ilizarov external fixator in Benha University hospital. The mean age was 39 years (range 22–55 years), and the mean follow-up period was 11±2 months (range 8–12 months). Closed reduction was performed by closed means in 70% of cases or through minimal incisions in 30% of cases. Clinical and functional evaluation of patients in the tibial plateau group was performed.Results: All patients started weight bearing the day after the surgery. Functionally, 70% had an excellent result, 20% had a good result. Radiologically 75% of had excellent results. Pin tract infection was controlled in all patients without need to implant removal.Conclusion: The degree of soft tissue injury associated with tibial plateau fracture is an important determinant for both the choice of the treatment modality and the prediction of treatment outcome. The use of Ilizarov external fixator is safe and effective option for the treatment of difficult Schatzker IV, V and VI tibial plateau fractures.

Distal Intra Articular Tibial Fracture Treated by Ilizarov with Ligamentotaxis

Abstract Background The thin soft tissue and muscles envelope that surrounds the distal tibia makes treatment of these fractures difficult. These fractures are often referred to as ―pilon‖ fractures or ―plafond‖ fractures‖. If the articular surface of the tibia is involved; in such cases an anatomic realignment of the involved articular fracture in conjunction with a stable fixation is crucial. Objectives The aim of this paper is to conduct a systematic review of literature about functional and radiological outcomes in patients with distal intra articular tibial fracture treated by external fixator with ligamentotaxis. Materials and Methods We performed this systematic review and meta-analysis in accordance to the recommendations of the Meta-analysis of Observational Studies in Epidemiology (MOOSE) statement. MOOSE is a reporting checklist for Authors, Editors, and Reviewers of Meta-analyses of interventional and observational studies. According to International committee of medical journal association (ICJME), reviewers must report their findings according to each of the items listed in those checklists Results Over all, five studies reported the time to union. The overall effect estimates showed that the time to union after Ilizarov external fixator was 12.83 weeks. Three studies reported the rate of union. The overall effect estimates showed that the rate of union after Ilizarov external fixator was 88.4%. Over all, eight studies reported the good-excellent AOFS score. The overall effect estimates showed that the rate of good-excellent AOFS score after Ilizarov external fixator was 69.4%. Nine studies reported the rate of malunion. The overall effect estimates showed that the rate of malunion after Ilizarov external fixator was 10.2%. Over all, seven studies reported the rate of delayed union. The overall effect estimates showed that the rate of delayed union after Ilizarov external fixator was 6.3%. All studies reported the rate of pin infection. The overall effect estimates showed that the rate of pin infection after Ilizarov external fixator was 33.7%. Ten studies reported the rate of major infection. The overall effect estimates showed that the rate of major infection after Ilizarov external fixator was 3.4. Conclusion External fixation and ligamentotaxis by either ilizarov or any external fixator is a good and easy method for fixation of distal intraarticulat tibial fracture with few serious complications. due to easy to apply it, less rate of infection, no risk of bleeding since no opening the fracture site, good aligment of the joint, no streaping of the periosteomy that lead to later on good and rapid healing of the fracture.

Open tibial fracture with severe soft tissue injury and bone loss managed with ipsilateral fibular transport and its complications: a case report

<p class="abstract">Massive segmental bone defects of tibia present as a challenging task to manage specially when associated with extensive soft tissue injury. A 30 year old male presented to Paras HMRI hospital, Patna, post road traffic accident with Gustilo Anderson 3B comminuted open tibia shaft fracture and with an external fixator in situ with a grossly inflamed and infected wound. Initially patient was managed with serial wound debridement and skin grafting was done early to obtain adequate soft tissue coverage. The patient then underwent application of Ilizarov external fixator with plan of one level fibular osteotomy for ipsilateral fibular transport. With good outcome of the procedure clinically and radiologically, Ilizarov fixator was removed after time duration of about 1.3 years and limb was immobilized in plaster of Paris (POP) cast which was removed after 8 weeks. Within 1 month of removal of POP cast the patient presented to hospital again with complaints of pain and instability when his leg was run over by his child’s bicycle while playing. Diagnosed as fracture of proximal (transported) fibula he was managed then with locking plates; one of which was used as an internal fixator and the other as external fixator which was outside the body and acted as a support to the operated limb. After about 1 year the external locking plate was removed and patient was able to bear weight on his extremities. Despite various modalities to treat massive tibial gap, fibular transport procedure with Ilizarov external fixator seems to be the most viable option.</p>

Acute correction of severe complex adolescent late-onset tibia vara by minimally invasive osteotomy and simple circular fixation: a case series with 2-year minimum follow-up

BackgroundDespite multiple published reviews, the optimum method of correction and stabilisation of Blount’s disease remains controversial. The purpose of this study is to evaluate the clinical and radiological outcomes of acute correction of late-onset tibial vara by percutaneous proximal tibial osteotomy with circular external fixation using two simple rings. Weighing up the pros and cons and to establish if this method would be the method of choice in similar severe cases especially in a context of limited resources.MethodsThis study was conducted between November 2016 and July 2020. We retrospectively reviewed the clinical notes and radiographs of 30 patients (32 tibiae) who had correction of severe late-onset tibia vara by proximal tibial osteotomy and Ilizarov external fixator. The mean age at the time of the operation was 16.6 (± 2.7) years (range 13–22).ResultsThe mean proximal tibial angle was 65.7° (± 7.8) preoperatively and 89.8° (± 1.7) postoperatively (p < 0.001). The mean mechanical axis deviation improved from 56.2 (± 8.3) preoperatively to 2.8 (± 1.6) mm postoperatively (p < 0.001). The mean femoral-tibial shaft angle was changed from –34.3° (± 6.7) preoperatively to 5.7° (± 2.8) after correction, with degree of correction ranging from 25° to 45°. Complications included overcorrection (three cases 9%) and pin tract infection (eight cases 25%). The mean Hospital for Special Surgery knee scoring system (HSS) improved from 51.03 (± 11.24) preoperatively to 94.2 (± 6.8) postoperatively (p < 0.001). The mean length of follow up period 33.22 (± 6.77) months, (rang: 25–46 months). At final follow up, all patients had full knee range of motion and normal function. All cases progressed to union and there were no cases of recurrence of deformity.ConclusionThis simple procedure provides secure fixation allowing early weight bearing and early return to function. It can be used in the context of health care systems with limited resources. It has a relatively low complication rate. Our results suggest that acute correction and simple circular frame fixation is an excellent treatment choice for cases of late-onset tibia vara, especially in severe deformities.

Simultaneous septic arthrodesis of the tibiotalar and subtalar joints with the Ilizarov external fixator—an analysis of 13 patients

PurposeTreatment of joint destruction of the tibiotalar and subtalar joints caused by acute or chronic infections in compromised hosts is a challenging problem. In these cases, simultaneous septic arthrodesis with the use of the Ilizarov external fixator represents a possible alternative to amputation. This case series presents the results and complications of patients with acute or chronic infection of the tibiotalar and subtalar joints.MethodsBetween 2005 and 2015, 13 patients with acute or chronic infections were treated by simultaneous single-stage debridement/arthrodesis of the tibiotalar and subtalar joints. In seven patients, there was a florid infection with fistula formation and soft tissue defects, and in six patients, there was chronic osteomyelitis with closed soft tissue. In addition to the demographic data, the time spent in the fixator, the major and minor complications and the endpoint of consolidation were reviewed.ResultsThe mean time spent in the fixator was 18 (min 15, max 26) weeks. The mean follow-up time for nine patients was 100 (min 3, max 341) weeks. Complete osseous consolidation of both the tibiotalar and subtalar joints was achieved in 10 patients (77%). In three (23%) patients, there was complete consolidation of one of the joints and partial consolidation of the other joint.ConclusionThe Ilizarov external fixator allows for simultaneous arthrodesis of the tibiotalar and subtalar joints in septic joint destruction. However, the healing rates are below the rates reported in the literature for isolated tibiotalar or tibiocalcaneal arthrodesis in comparable clinical situations.