Knee Anterior Laxity and Graft Maturation After Transphyseal Anterior Cruciate Ligament Reconstruction.

Background: The failure rate of anterior cruciate ligament (ACL) reconstruction in children and adolescents is a significant concern. Of the multitude of clinical factors that contribute to this risk, delayed maturation and graft laxity are potentially related and modifiable elements. The aim was to investigate knee anterior laxity and graft maturation in children and adolescents.

Non-operative treatment of adolescent idiopathic scoliosis.

Adolescent idiopathic scoliosis worsens mainly during growth at puberty. This is when non-operative treatment, by brace and physiotherapy, comes into its own. Only the brace has proven efficacy in stabilizing Cobb's angle.

Intratumoral Heterogeneity Assessment of the Extracellular Bone Matrix and Immune Microenvironment in Osteosarcoma Using Digital Imaging to Predict Therapeutic Response.

The assessment of chemotherapy response in osteosarcoma (OS) based on the average percentage of viable cells is limited, as it overlooks the spatial heterogeneity of tumor cell response (foci of resistant cells), immune microenvironment, and bone microarchitecture. Despite the resulting positive classification for response to chemotherapy, some patients experience early metastatic recurrence, demonstrating that our conventional tools for evaluating treatment response are insufficient. We studied the interactions between tumor cells, immune cells (lymphocytes, histiocytes, and osteoclasts), and bone extracellular matrix (ECM) in 18 surgical resection samples of OS using multiplex and conventional immunohistochemistry (IHC: CD8, CD163, CD68, and SATB2), combined with multiscale characterization approaches in territories of good and poor response (GRT/PRT) to treatment.

Changes in gait patterns after anterior cruciate ligament reconstruction in children.

Purpose: Anterior cruciate ligament reconstruction (ACLR) in children is indicated to reduce recurrent knee instability and further damage to the joint. Postoperative modified gait pattern was reported in the adult population after ACLR. The aim of this study was to analyse gait abnormalities, and especially knee and ankle adaptations during gait in children after ACLR.

Feasibility, Safety and Reliability of Surgeon-Directed Transcranial Motor Evoked Potentials Monitoring in Scoliosis Surgery.

(1) Background: Neuromonitoring is essential in corrective surgery for scoliosis. Our aim was to assess the feasibility, safety and reliability of "surgeon-directed" intraoperative monitoring transcranial motor evoked potentials (MEP) of patients. (2) Methods: A retrospective single-center study of a cohort of 190 scoliosis surgeries, monitored by NIM ECLIPSE (Medtronic), between 2017 and 2021.

Influence of a posteromedial meniscocapsular injury on the knee anterior laxity. A cadaveric study.

Purpose: The number of anterior cruciate ligament (ACL) injuries has considerably increased in the recent years, especially in young adults and adolescents. Associated meniscal tears increase anterior and rotary laxity. Posterior peripheral meniscocapsular tear of medial meniscus is also called ramp lesion.

Analysis of Growth After Transphyseal Anterior Cruciate Ligament Reconstruction in Children.

Background: Pediatric transphyseal anterior cruciate ligament reconstruction (ACLR) bears several advantages and is widely used. The main concern is the risk of growth disturbance. Our purpose was to investigate the incidence and risk factors of growth disturbance in skeletally immature patients who underwent transphyseal ACLR.

Evaluation of surgical outcomes of calcaneonavicular coalition and too-long anterior process in children: A prospective study.

Introduction: Calcaneonavicular coalitions (CC) affect approximately 1% of the general population. CC or Too-long anterior process (TLAP) result in "repeated sprains" that can be associated with foot and/or ankle chronic pain. The main objective of this study was to analyze the effectiveness of surgery using the AOFAS score.

Surgical treatment of congenital pseudarthrosis of the clavicle: A series of 10 cases.

Introduction: Congenital pseudarthrosis of the clavicle (CPC) is a rare congenital malformation. We describe the outcomes of surgical treatment of CPC in a series of 10 patients. The hypothesis was that surgical treatment is an acceptable solution that will lead to satisfactory healing in asymptomatic patients.

No osteolysis at the telescopic junction of 128 FITBONE lengthening nails.

Background: Motorized lengthening nails are the treatment standard for bone lengthening of the lower limbs. However, bony changes namely osteolysis and periosteal hypertrophy have been described after certain type of magnetically driven lengthening nails. The aim of this study was to estimate the proportion rate of radiological bone abnormalities of Fitbone TAA femoral or tibial lengthening nails with a minimum follow-up time of 1 year.

Diffusion properties of asymptomatic lumbar intervertebral discs in a pediatric cohort: a preliminary study of apparent diffusion coefficient.

Purpose: To explore the apparent diffusion coefficients of intervertebral discs in an asymptomatic pediatric cohort.

Methods: We conducted a prospective MRI study of the lumbar spine from below the thoracolumbar junction to the lumbosacral junction on 12 subjects (mean age 13 y.o.

Side bending radiographs and lowest instrumented vertebra in adolescent idiopathic scoliosis: A French quality-of-care study.

Background: Determining which spinal levels to instrument during surgical treatment of Lenke Type 1 adolescent idiopathic scoliosis (AIS) depends on the reducibility of the primary and secondary curve patterns. This reducibility can be evaluated in several ways, with the most popular being radiographs in bending for moderate thoracic and lumbar curvatures. Hypothesis Side-bending radiographs will alter the choice of the lowest instrumented vertebra (LIV) for the surgical treatment of AIS.

Does harvesting of the semitendinosus tendon really spare the gracilis in pediatric anterior cruciate ligament reconstruction?

Purpose: The use of isolated semitendinosus tendon for Anterior Cruciate Ligament Reconstruction bears several advantages and is popular worldwide. It assumes that the gracilis tendon is spared. The aim of the study was to measure the surface area of the gracilis tendon in children who had undergone arthroscopic reconstruction of the anterior cruciate ligament using a semitendinosus tendon graft.

Resection of calcaneonavicular coalition: Arthroscopic or open approach?

Purpose: Calcaneonavicular coalition accounts for more than half of all tarsal coalitions. Resection of calcaneonavicular coalition by an open approach is the standard treatment. Treatment of calcaneonavicular coalition by an arthroscopic approach appears promising.

Surgical outcomes of spinal osteochondroma in children: A multicentre observational study.

Background: Spinal osteochondroma (or exostosis) is a rare benign tumour whose clinical manifestations are delayed due to their slow growth and location. Few studies have addressed the characteristics and the diagnostic and therapeutic peculiarities of spinal osteochondroma in children. The objective of this multicentre observational study was to assess the outcomes of a cohort of children after surgery for spinal osteochondroma.

How does magnetically controlled growing rods insertion affect sagittal alignment in ambulatory early onset scoliosis patients?

Purpose: The importance of sagittal alignment restoration in early onset scoliosis (EOS) management has rarely been investigated to date. The aim was to report the influence of magnetically controlled growing rods (MCGR) insertion on the sagittal alignment of EOS patients.

Methods: All consecutive ambulatory patients operated with MCGR rods between 2011 and 2018 were retrospectively included in four institutions.

Treatment of hallux valgus in children and adolescents.

Juvenile hallux valgus is one of the most common pathologies of the forefoot in children and adolescents. Nevertheless, its treatment is still controversial. This deformity has some distinct anatomical features, particularly a lateral tilt of the articular facet of the head of the first metatarsal and congenital metatarsus adductus, which often occur in combination.

Clinical predictive model of lumbar curve Cobb angle below selective fusion for thoracic adolescent idiopathic scoliosis: a longitudinal multicenter descriptive study.

Purpose: To implement a clinically applicable, predictive model for the lumbar Cobb angle below a selective thoracic fusion in adolescent idiopathic scoliosis.

Methods: A series of 146 adolescents with Lenke 1 or 2 idiopathic scoliosis, surgically treated with posterior selective fusion, and minimum follow-up of 5 years (average 7) was analyzed. The cohort was divided in 2 groups: if lumbar Cobb angle at last follow-up was, respectively, ≥ or < 10°.

Bone Lengthening with a Motorized Intramedullary Nail in 34 Patients with Posttraumatic Limb Length Discrepancies.

Unlabelled: The Fitbone motorized nail system has been used to correct limb length discrepancies (LLD) for several years. This study focuses on its application in posttraumatic limb lengthening surgery, its outcome and challenges.

Materials And Methods: A prospective, single center study was conducted between 2010 and 2019 in patients treated with motorized lengthening nails.