Prevalence, number of fractures, and hospital characteristics among the pediatric population with osteogenesis imperfecta: results from the nationwide registry of Türkiye.

Objective: Osteogenesis imperfecta is a rare connective tissue disorder with an estimated number of 4-20 cases per 100 000 inhabitants. Although the prevalence differs among regions, there are only a few number of national registry studies published previously. The aim of this study was to determine the prevalence of osteogenesis imperfecta among the pediatric age group in Türkiye, together with the patient and hospital characteristics.

The burden of scoliosis: a nationwide database study on demographics, incidence, and surgical rates.

Introduction: Scoliosis is characterized as a three-dimensional deformity of the spine, affected by variety of factors, including biological, mechanical, hormonal, and genetics.

Methods: Our study's primary objective was to delineate the demographics, incidence, and prevalence of scoliosis from a nationwide perspective, analyze the surgical intervention rates, with the aim of offering more insightful guidance to orthopedic physicians. This nationwide cohort study was conducted from digital database for healthcare information management.

Semimembranosus: A Rare Muscle Herniation and Review of the Literature.

Extremity muscle hernias are rare pathologies, most of which are managed conservatively. In symptomatic cases, surgical intervention may be required. This study represents a case of a rarer muscle hernia, semimembranosus, in a 43-year-old patient and describes the surgical technique of grafting with synthetic nonabsorbable polypropylene surgical mesh as well as the review of the literature about extremity muscle hernias.

Treatment of Hip Dislocation in Cerebral Palsy with Extraarticular Intervention.

PURPOSE OF THE STUDY Hip dislocation is one of the major causes of disability in children with cerebral palsy (CP). Surgical treatment can be achieved using different techniques including proximal femoral varus derotation osteotomy (FVDRO), pelvic osteotomies, and open hip reduction (OHR). However, we claim that pathologies originating from extraarticular structures in the dislocated hip in CP can be reconstructed by extraarticular methods and OHR may not always be necessary.

Collagen Scaffold Application in Arthroscopic Reconstruction of Osteochondral Lesions of the Talus With Autologous Cancellous Bone Grafts.

Background: Single-step all-arthroscopic techniques have gained popularity recently in the treatment of osteochondral lesions of the talus (OLT). Concomitant subchondral bone defects led surgeons to add autologous bone grafting to the surgical procedures. Collagen scaffolds have been used widely for stabilization of the reconstruction and regeneration of the articular surface.

Intralesional curettage and cementation of low-grade chondrosarcomas of the appendicular skeleton: Long-term results from a single center.

Objective: The purpose of this study was to investigate the results and complications in patients who had low-grade chondrosarcomas in the appendicular skeleton and were treated by intralesional curettage and cementation within the scope of 25 years of experience in a single center.

Methods: Ninety-one patients (72 female and 19 male) were retrospectively analyzed. The median at the time of surgery was 43 (17-78) years, and the median follow-up was 102 (26-288) months.

Effects of tension band plating on coronal plane alignment of lower extremities in children treated for idiopathic limb length discrepancy.

Purpose: One of the most common treatment methods for moderate limb length discrepancy in children is growth modulation using tension band plating. Coronal plane deformities after tension band plating for limb length discrepancy have been documented as an important complication in articles involving heterogeneous groups consisted of both idiopathic cases and patients with pathological physes. The aim of the study was to determine the rate of coronal plane deformities after treatment of a homogeneous group of idiopathic limb length discrepancy cases with tension band plating and to compare screw constructs of medial and lateral plates.

Relation of the Sural Nerve and Medial Neurovascular Bundle With the Achilles Tendon in Children With Cerebral Palsy Treated by Percutaneous Achilles Tendon Lengthening.

Background: One of the most common treatment options for a short Achilles tendon (AT) in cerebral palsy is percutaneous AT lengthening using 3 hemisections. Because of proximity of neurovascular structures around the tendon, iatrogenic injury to them have been a concern about this technique. The sural nerve (SN) is under risk of injury at the site of the lateral incomplete cut, especially if it is done proximally.

High hip center arthroplasty in the treatment of severe hip dysplasia: Are knee and ankle compromised?

Background: There is limited information about the effect of hip center location on gait parameters of knee and ankle. This study aimed to compare anatomical vs. high hip center arthroplasty according to gait parameters of knee and ankle and investigate whether the high hip center has any adverse effect on these joints or not.

The Coexistence of Spontaneous Femoral Nerve Palsy and Developmental Dysplasia of the Hip in a Breech-Presenting Newborn: A Rare Case Presentation.

Case: In this report, we present an infant who was diagnosed with femoral nerve palsy (FNP) and developmental dysplasia of the hip (DDH) on the same side after delivery. The patient was treated with hip alternative abduction orthosis, which did not force hip flexion with satisfactory results.

Conclusion: FNP in newborns with DDH is usually described as a possible complication of the Pavlik harness treatment.

The risk factors for mechanical complication in endoprosthetic reconstruction of knee osteosarcoma.

Background: The increased limb survival rates and higher functional demands have also increased the mechanical complication rates of megaprostheses. This study aimed to analyse possible risk factors which can predispose patients to mechanical complications.

Methods: Patients with knee osteosarcoma referred to our clinic from 1992 to 2014 were investigated retrospectively.

Retro-patellar approach in telescopic nailing of the tibia in children with osteogenesis imperfecta.

Purpose: Telescopic intramedullary nailing (TN) has become the main choice of treatment in children with osteogenesis imperfecta (OI). The classical parapatellar tibial nailing technique poses difficulties in maintaining reduction, insertion of the nail and fluoroscopic imaging. Also, deformities of the proximal tibia in relatively small children with OI can be problematic for tibial nailing.

Intraoperative neuromonitoring during distal femoral extension osteotomy in children with cerebral palsy.

The most common treatment method for a fixed knee flexion contracture more than 10 degrees in cerebral palsy (CP) is distal femoral extension osteotomy (DFEO). However, a serious complication after a DFEO is neurological impairment. Its rates were reported as 5- 40%.

How the COVID-19 pandemic is affecting paediatric orthopaedic practice in Turkey.

Purpose: Changes to routine clinical approaches during the corona virus disease 2019 (COVID-19) pandemic are necessary to decrease the risk of infection in patients and healthcare providers. Because the treatment of many conditions is time sensitive, it is crucial to modify the management of paediatric orthopaedic cases by minimizing any subsequent morbidity. Our purpose was to describe the different measures and management strategies that have been applied by paediatric orthopaedic surgeons and to show how paediatric orthopaedic practice is affected in Turkey.

The split transfer of tibialis anterior tendon to peroneus tertius tendon for equinovarus foot in children with cerebral palsy.

Objective: The aim of this study was to analyze the results of the split anterior tibialis tendon transfer (SPLATT) to peroneus tertius (PT) for equinovarus foot deformity in children with cerebral palsy (CP).

Methods: The medical records of 25 ambulatory CP patients (mean age: 8.7±3.

The effect of preoperative radiotherapy on local control and prognosis in high-grade non-metastatic intramedullary osteosarcoma of the extremities.

Introduction: This study aimed to analyse the effect of preoperative radiotherapy on survival, recurrence and necrosis rates in osteosarcoma patients treated with neoadjuvant chemotherapy and limb-salvage surgery.

Materials And Methods: Osteosarcoma patients who referred to our clinic from 1998 to 2015 were investigated retrospectively. 141 patients with non-metastatic osteosarcoma of the limb who received neoadjuvant chemotherapy and underwent limb-sparing surgery with or without preoperative radiotherapy were included in the study.

Effects of 1,25-Dihydroxy vitamin D on TNF-α induced inflammation in human chondrocytes and SW1353 cells: a possible role for toll-like receptors.

The purpose of this study is to evaluate anti-inflammatory and chondro-protective effects of 1,25(OH)D in human chondrocytes and SW1353 cells via investigating expressions of MMPs, TIMPs, VDR, and intracellular signalling pathway mediators such as TLR-2 and -4. The HC and SW1353 cells were treated with 1,25(OH)D at 10, 100, and 1000 nM concentrations in the absence/presence of TNF-α (20 ng/mL) for 48 h. The mRNA expressions of MMP-1, -2, -3, -9, and -13, TIMP-1 and -2, VDR, TLR-2 and -4 in HC and SW1353 cells were detected by qPCR after treatments.

Femoral derotation osteotomy in children with cerebral palsy using the pediatric proximal femoral nail.

We designed a pediatric proximal femoral nail (PPFN) to overcome fixation method-related complications when performing femoral derotation osteotomy in cerebral palsy patients. Preliminary results of cerebral palsy patients who underwent femoral derotation osteotomy fixed using PPFN to treat in-toeing were evaluated. Sixteen patients with a mean age of 10 years were included.

High-Riding Congenital Hip Dislocation: THA With Unilateral vs Bilateral Transverse Femoral Shortening Osteotomy.

Background: We argue that 1-stage bilaterally total hip arthroplasty (THA) could be acceptable in bilateral coxarthrosis because of high-riding developmental dysplasia of the hip (DDH).

Methods: Sixty-nine cases (51 patients) of high-riding DDH in patients who underwent THA from 2010 to 2013 were reviewed. Patients were divided into 2 groups: unilateral (group 1) and 1-stage bilateral surgery (group 2).

Management of knee rheumatoid arthritis and tibia nonunion with one-stage total knee arthroplasty and intramedullary nailing: A report of two cases.

Total knee arthroplasty (TKA) is a surgical procedure which is widely used in the treatment of gonarthrosis secondary to rheumatoid arthritis (RA). The incidence of stress fractures in tibia in the patients with RA is higher compared to normal patients. In this study, we report two cases of TKA and intramedullary nailing in RA patients with severe knee arthritis and tibial nonunion.

Atelosteogenesis type III: orthopedic management.

Atelosteogenesis type III is a rare autosomal dominant skeletal dysplasia caused by mutations in the synthesis of the protein filamin B (FLNB). The mutation in the gene coding for FLNB causes the osteochondrodysplastic features of this disorder. Clinically, osteochondrodysplasia causes unbalanced skeletal maturation and absent or mostly hypoplastic bones, such as the pelvis, vertebrae, ribs, or long bones.

A clinical study on ankylosis of the temporomandibular joint.

Introduction: Restoration of normal function and jaw movement in patients with temporomandibular joint (TMJ) ankylosis is difficult. Various techniques have been defined for the treatment of the condition.

Patients: This study is based on the pre-, intra- and post-operative evaluation of 78 TMJ operations in 59 patients who were treated for TMJ ankylosis between 1985 and 2002.

The contribution to success of various methods of treatment of temporomandibular joint ankylosis (a statistical study containing 24 cases).

Temporomandibular joint (TMJ) ankylosis is an important joint disorder which, in addition to emerging through trauma, can also arise as a result of local and systemic infections. TMJ ankylosis which develops in childhood in particular has its own characteristics. Despite the existence of different views on the treatment of TMJ ankylosis, various techniques have been defined, and three basic techniques are currently employed: gap arthroplasty, interpositional arthroplasty and joint reconstruction.

Congenital alveolar synechiae - a case report.

Congenital alveolar synechiae is rarely seen as an isolated disease. It is generally observed together with various syndromes such as Van der Woude and cleft palate lateral alveolar synechiae syndrome, and is concomitant with other anomalies in the maxillofacial or other regions of the body. Prior to this case report , eight cases of isolated congenital alveolar synechiae have been reported.