Journal of Pediatric Orthopaedics-Part B最新文献

All-terrain vehicle (ATV) accidents frequently cause orthopedic injuries. Previous studies have reported the frequency of fractures in ATV injuries. No studies have provided detailed assessments of fracture patterns, types of operative intervention, or risks for multiple surgeries. A total of 489 patients with ATV-related injuries were treated at one tertiary Level 1 pediatric hospital from January 2011 to December 2016. Medical records were retrospectively reviewed to define orthopedic injuries and treatment. Data were organized to identify fracture patterns, surgeries, and complications. Three age groups were utilized (0-6, 7-12, and ≥13 years). A total of 270 pelvic and extremity fractures occurred in 215 patients (44%); 136 patients (63%) required surgical intervention; 47 patients (22%) required multiple trips to the operating room; 16% of fractures (43/270) were open, and seven developed deep infections. Three patients required amputations, and one death was recorded. No significant differences were found between age and fracture frequency or need for surgery. Surgical rates of supracondylar humerus (97%) and tibial shaft fractures (87%) were higher than historical norms (16-24% and 5-74%, respectively). To date, this is one of the largest single-institution cohorts of ATV-related pediatric orthopedic injuries. Nearly half of ATV-related pediatric trauma patients sustained orthopedic injuries. The majority required surgical treatment, and nearly 1/4 of patients required multiple surgeries. Younger patients were as likely to require surgery as older patients. Supracondylar humerus fractures and tibial shaft fractures from ATVs required surgery at a higher rate than historical norms. The surgical morbidity of pediatric ATV fractures is substantial and should influence safety and prevention education.

Surgical intervention in preschoolers with femoral shaft fractures has increased due to the evolving lifestyle. This study aimed to analyze and compare the efficacy of elastic intramedullary nailing and external fixation in treating femoral shaft fractures in children aged 2-5. Ninety-nine pediatric patients were categorized into the external fixator (EF) and the elastic intramedullary nail (ESIN) group based on surgical techniques. Data on follow-up, intraoperative parameters, postoperative complications, fracture features, and demographics were gathered and compared. The mean duration of follow-up was 32 months, ranging from 25 to 48 months. All fractures had healed completely and no instances of nonunion were observed. At the latest follow-up, within the EF group, there were instances of malunion, delayed union, and refracture, each occurring once. One case in every group exhibited a leg length difference above 2 cm. The external fixation group had a shorter operation duration (P = 0.04), fewer intraoperative fluoroscopy times (P < 0.01), earlier partial weight-bearing time (P < 0.01), and full weight-bearing time (P < 0.01), while a greater complication rate (29.8 vs. 14.3%, P = 0.07) compared with the ESIN group. The incidence of pin tract infection in the EF group was 21.1% (12/57) compared with 2.4% (1/42) in the ESIN group (P = 0.07). Eighty percent of the patients' families expressed concern about the residual scar after removing the EF. The ESIN group encounters fewer complications and positive aesthetic effects, making it a preferable treatment option in this specific patient population and fracture pattern. Level of evidence: Class III, retrospective comparative study.

Treatment for neuromuscular hip dysplasia (NMHD) typically involves osteotomies of the proximal femur and/or pelvis, and the potential for significant volume blood loss is high. Tranexamic acid (TXA) functions as an antifibinolytic and has been shown to reduce bleeding in many operative settings. Retrospective evidence for the use of TXA in children undergoing NMHD reconstruction is inconclusive, and to our knowledge, prospective evaluation has never been performed. The purpose of this study was to examine the effectiveness of TXA use on intra- and postoperative outcomes during bony reconstruction for NMHD. In this matched comparative study, a prospective cohort of patients undergoing bony reconstruction for NMHD who were given TXA was enrolled and then matched to a retrospective cohort who previously underwent the same surgery without administration of TXA. The primary outcome variable was a change in perioperative hemoglobin values from preoperative to 1 day postoperatively. Secondary objectives were percent loss of estimated blood volume, postoperative transfusion requirements, and length of hospital stay. Forty-eight patients, 24 in each cohort, were included in the analyses. Mean age at surgery was 7.09 years (±2.5). Fifty percent of each cohort underwent bilateral varus derotational osteotomy with pelvic acetabuloplasty. No statistical differences were found in postoperative hemoglobin differences (P = 0.18), length of hospital stay (P = 0.45), or blood transfusion requirements (P = 0.56) between cohorts. Intraoperative administration of TXA to patients undergoing bony reconstruction for NMHD was not found to reduce postoperative blood loss or requirement for blood transfusion. Future studies should employ a larger, prospective randomized controlled trial to verify these findings.

The objective of this study was to analyze the treatment of recurrent valgus knee in fibular hemimelia patients with hemiepiphysiodesis and define associated variables for deformity relapse. Sixteen consecutive patients with fibular hemimelia treated with hemiepiphysiodesis (57 physis) were compared to 21 physis of idiopathic cases, in terms of magnitude, speed, and time of correction. Correction of valgus deformity was successfully achieved in all cases. In the fibular hemimelia group, children 4 years and younger had a bigger magnitude of correction than older ones (11° versus 6.9°) and greater speed (1° versus 0.6°), with statistical significance (P = 0.018 and P = 0.009, respectively), while time for correction was similar among these groups (11.6 months versus 12.3 months). Femoral distal physis corrected faster than proximal tibial physis (10.8 months versus 16.8 months), with statistical significance (P = 0.032). Thirty-three physis (57.9%) were isolated and 24 (42.1%) were tibia and femur. We found no statistical difference between the two groups regarding time for correction, magnitude, or speed (P = 0.526, P = 0.910, P = 0.803, respectively). Relapse was observed in 49 physis (86%) of the fibular hemimelia patients. These had a mean age of 5.5 years versus 3.9 years for those without a relapse, with statistical significance (P = 0.204). Relapse occurred after 2 years of the first procedure. Recurrent valgus deformity in fibular hemimelia can be successfully treated with single or multiple hemiepiphysiodesis with tension band plates in skeletally immature patients in an effective and gradual manner. Level of Evidence: Level III, therapeutic study.

Children and adolescents with metabolic bone disease present to the orthopedic surgeon with pain, fractures (which may be impending), and deformity. Different modalities of orthopedic management are available. Scant literature exists on the use of rigid intramedullary nailing in this population. This study sought to evaluate the utilization of this treatment modality in the pediatric cohort, focusing on indications, techniques, and outcomes of the procedures. A retrospective review was performed over an 11-year period at a single tertiary pediatric institution in the UK. Medical records and radiographs were reviewed. Preoperative surgical and medical management, time to bony union, and complications were specifically ascertained. Twenty-seven patients (63 lower limb segments) had rigid intramedullary nailing over the specified period. The majority of patients had an underlying diagnosis of osteogenesis imperfecta or fibrous dysplasia (including McCune Albright Syndrome). Surgical indications included acute fractures, prophylactic stabilization, previous nonunion and malunions, deformity correction, and limb lengthening. All fractures healed and deformity correction was successful. In one patient, delayed union occurred after deformity correction and was successfully treated with dynamization. Fractures healed faster than corrective osteotomies. Complications included implant prominence, cortical penetrance, and screw loosening. Nonunion occurred with limb lengthening in one patient. Rigid intramedullary nailing is a safe and effective method of treatment for lower limb fractures and deformities in children and adolescents. This technique is, therefore, recommended for patients with metabolic bone disease. However, care must be taken in preoperative surgical planning and a multidisciplinary approach should be utilized.

Patients with congenital dislocation of the knee (CDK) should be promptly treated surgically if conservative measures fail. This study aimed to achieve a better understanding of the diagnosis and management of CDK through sharing our experience and contributing to the existing literature. Nine patients with a total of 14 knees were included in the study. All patients except one were initially treated with gentle manipulation and serial casting. Surgery was performed on patients in whom sufficient joint mobility could not be achieved. Active and passive range of motion of the knees and functional outcome were measured. Of the 14 knees, five were classified as first grade, four as second grade and five as third grade. The mean age of the patients was 4.09 months and the follow-up period was 70 months. The initial mean flexion angle (MFA) was 18.2° (0-90) and the mean extension angle (MEA) was 8.2° (0-15). At the final follow-up, the mean MFA was 109.2° (80-140) and MEA was -2.85° (0 to -10). No patient had instability by the final follow-up. The results were classified as excellent (5 knees), good (5 knees) and moderate (4 knees) according to outcome assessment criteria. The functional outcomes were classified as excellent (7 knees), good (3 knees) and fair (4 knees) according to the functional outcome scoring. Treatment of CDK should be started in the first days of life, and if the desired functional outcome cannot be achieved through conservative treatment, surgical treatment should be planned without delay.

A systematic review of the operative techniques for treating cubitus varus deformity in children was performed using research databases including PubMed and Embase. Outcome measurements included mean angular correction of the humerus-elbow-wrist angle, complications, revisions and outcome scores. A total of 45 papers and 911 patients were included. Lateral closing wedge osteotomy (LCWO) (427 patients) was the most common procedure and 5.56% of these patients experienced lateral condylar prominence. This technique had the highest revision rate at 3%. The step-cut osteotomy (111 patients) yielded zero postoperative infections or loss of motion. Distraction osteogenesis (92 patients) was the least common technique. Superficial pin tract infections occurred in 18% of patients and 88.04% of patients reported excellent results, the highest of any technique in this study. The infection rate of dome osteotomy (151 patients) was 9.45% and 4.72% of patients experienced loss of motion. 3D osteotomy (130 patients) had no infections, 87.78% of patients reported excellent outcomes, and 2.22% of patients reported poor outcomes, the lowest of all techniques. For unidimensional correction, LCWO provides a technically simple procedure and reasonable outcomes. Step-cut osteotomy has less lateral condylar prominence but is more complicated than LCWO. Distraction osteogenesis is a minimally invasive alternative to LCWO and step-cut osteotomy, but it has more superficial infections and can be bothersome to patients. For a multidimensional correction, 3D osteotomy is superior to dome osteotomy due to its lower infection rate and higher rate of functionally excellent outcomes.

Immobilization type and in-hospital observation following surgical management of displaced supracondylar fractures are subject to surgeon preference and training. Our goal was to determine criteria for immediate discharge and optimal type of immobilization. Medical records of 661 patients with type III, IV or flexion-type displaced supracondylar humerus fractures treated at a level 1 pediatric trauma center from January 2013 to September 2019 were reviewed. Patients were separated into 'admission appropriate' (AA = 113) and 'discharge appropriate' (DA = 548) sub-cohorts. Neurovascular deficit at presentation ( P  < 0.001), post-operative physical exam deterioration ( P  < 0.001), age ( P  < 0.001) and post-operative immobilization modality ( P  = 0.02) were significantly different between AA and DA groups. When comparing patients who presented with neurologic deficit to those neurovascularly intact, there was a significant difference in whether circumferential immobilization was used post-operatively ( P  < 0.001), IV medication need ( P  < 0.001), discharge or admission ( P  < 0.001), neurologic decline ( P  < 0.001), return to ED ( P  = 0.008) and vascular compromise ( P  = 0.05). Twenty-four of the 56 (43%) patients who were AA and had no neurovascular finding on presentation had their immobilization adjusted (bivalved or loosened) to accommodate for swelling overnight. Only 1 was initially maintained in a splint or bivalved cast; the other 23 were initially maintained post-operatively in circumferential immobilization ( P  = 0.01). Our findings suggest that patients with intact neurovascular exams at presentation are candidates for early discharge, and splinting or bivalved casting may be preferable, especially in patients who are discharged.

Cross-pinning of displaced pediatric supracondylar elbow fractures offers a superior stability construct. However, there is a reluctance to use this construct by closed means because of the risk of iatrogenic ulnar nerve injuries associated with percutaneous medial pin placement. This study describes a safe technique for closed reduction percutaneous with medial pin placement. This study reviewed the clinical charts of 232 pediatric patients who underwent closed reduction with cross-pinning of Gartland type II and III supracondylar fractures from 2000 to 2022 at a single institution. All surgeries were performed by the same attending surgeon at the same institution, with the same technique of medial pin placement. The inpatient and outpatient notes were used to record patient demographic information, fracture classification, and postoperative complications. A total of 232 pediatric patients [114 boys, 118 girls; mean age: 5.8 (range: 1-14) years] with Gartland type II ( n  = 97) and III (n  = 135) supracondylar fractures were included in the study. There were a total of seven (3.02%) postoperative complications: four (1.7%) ulnar neuropathies, two (0.86%) pin site infections, and one (0.43%) anterior interosseous nerve palsy. All documented postoperative complications were resolved by the 3-month follow-up visit. There were no complications of deep infection, malunion, or nonunion. With the proper technique, closed reduction with percutaneous medial pin fixation of pediatric supracondylar fractures is safe and produces excellent postoperative outcomes. Level of Evidence: Level IV, case series.