Hemiepiphysiodesis for coronal angular knee deformities: tension-band plate versus percutaneous transphyseal screw.

INTRODUCTION: Pediatric coronal plane knee deformities can be treated surgically using hemiepiphysiodesis. The two leading techniques used for hemiepiphysiodesis are: tension-band plates (TBP) and percutaneous transphyseal screws (PETS). We hypothesized that PETS would lead to faster guided correction of angular knee deformities than TBP. MATERIALS AND METHODS: A retrospective cohort of 35 patients treated with either TBP or PETS in one medical institution was established. The cohort included both genu varum and genu valgum of both primary and secondary etiologies. We first compared the treatment groups for differences in demographic and malalignment characteristics. Then, we compared the treatment groups for differences in operation-related outcomes, radiological mechanical correction and complication rates. RESULTS: We found that the use of PETS, compared to TBP, was associated with a faster implantation surgery and a shorter interval between implantation and removal, i.e., faster correction. Furthermore, PETS were associated with faster correction rates of the mechanical axis deviation, lateral distal femoral angle and medial proximal tibial angle. No significant differences in complication rates were found between the two treatments. CONCLUSION: PETS provided a faster correction of angular knee deformities compared to TBP at similar complication rates. Hence, PETS could be considered a superior technique for hemiepiphysiodesis.

Universal neonatal foot orthotics-a novel treatment of infantile metatarsus adductus.

Approximately one in 100 babies has metatarsus adductus) MTA(. Although most deformities may resolve spontaneously, moderate and severe deformities might cause future discomfort and are therefore often treated. Common treatment alternatives include stretching, serial casting, and orthoses. Surgery is reserved for severe cases that are unresponsive to conservative management. The purpose of this study was to present our experience with a novel orthosis designed to correct and maintain correction of MTA in infants. Seventy-three children between the ages of 4 and 11.5 months with moderate to severe MTA were treated using the Universal Neonatal Foot Orthosis (UNFO). Treatment was started in cases of rigid deformity when the child was first seen in the clinic, or after the age of 5 months in children with moderate or severe but flexible deformity that failed to improve spontaneously. The orthosis was applied for 23 h daily. Weaning was started after a complete correction of the deformity was achieved. Follow-up was continued at least until walking age. Results were assessed utilizing the heel bisector line (HBL) as a measure of foot deformity before, during, and after treatment completion, and at the end of follow-up. Seventy-one patients (114 feet (were followed from the time of diagnosis to at least walking age. There were 102 severe (HBL at, or lateral to, the 4TH toe) and 12 moderate MTA (HBL between 3rd and 4th toes). Average age at the beginning of treatment was 6.58 months (range 4-11.5). Of the study population, 56 patients (98 feet) improved significantly by the end of the follow-up. In 11 children (11 feet), no change was noted, and in 3 children (3 feet), worsening of the deformity was observed at the end of follow-up. In one child who discontinued treatment after 6 weeks, there was no change in one foot and worsening in the other. Minor side effects were observed in 11 patients, all resolved uneventfully.Conclusion: UNFO is an effective treatment for moderate and severe MTA in children younger than10 months, with only infrequent minor side effects. What is Known: • Debate exists as to which patient warrants treatment since spontaneous improvement is the rule. However, some deformities persist to adulthood and may be esthetically unpleasing. • Treatment modalities available vary from benign neglect, special shoe ware that are either static or need special tools, and knowledge to adjust or casting by an orthopedic surgeon What is New: • This is a description of the results of treatment with a new orthotics which may be applied by pediatricians to treat this very common neonatal deformity. The orthotics provides an excellent, short duration solution, easy for the baby and caregiver with results comparable to those of more elaborate orthotics and casting • The use of digital pictures to assess forefoot adduction deformity severity instead of radiographs is a reliable measurement method.

A rare complication of a rare pediatric injury: Transient drop foot following a floating knee injury.

Floating Knee is a rare injury caused by high velocity, and has rarely been described in children. The purpose of this report is to present a case of a six-year-old female after a fall down three and a half flights of stairs, suffering from this rare injury and a rare complication, and her rehabilitation. She suffered fractures of the femur and tibia (Floating Knee type), and was operated on the day of the injury with closed reduction and internal fixation (CRIF). Following the operation, painful drop-foot was evident, related to the fractured bone pressure on the sciatic nerve and a very high level of anxiety. The patient was transferred to a rehabilitation hospital, where she received a total of about 350 physical therapy, hydrotherapy, psychology and occupational therapy treatments over a period of one year. Treatment also consisted of an ankle-foot orthosis (AFO) and transcutaneous electrical stimulation, and were assisted with examinations at the motion analysis laboratory using surface electromyography. The combined orthopedic and physical therapy treatment, and cooperation with psychology in the intervention and training for the care team, enabled achievement of all rehabilitation goals. The patient returned to a high functional level and full participation in daily life activities with her peers, without the need for the AFO or further treatment in the community. A re-examination after about six months showed continued functional improvement according to objective indicators. This case raises awareness of rare injuries and complications in pediatric orthopedic patients, that require multidisciplinary rehabilitation treatment and cooperation between the surgical and rehabilitation teams. Closed injury of the sciatic nerve can be followed for a long period without additional invasive studies or formal nerve exploration, and complete recovery can be achieved.

Orthotic hip brace as an alternative for treatment of femoral fractures in children under the age of 3 years: a retrospective study.

Femoral fractures are among the most common reasons for orthopedic-related hospital admissions in children. While spica cast is recommended for most children younger than 5 years, in the last decades, Pavlik harness was proven to be a safe alternative for young children. The objective is to assess the safety, outcomes and complications of a hip abduction brace (HAB) for the treatment of femoral fractures in children under the age of 3 years. This 7-year retrospective study was conducted in a single tertiary hospital. Children aged 6-36 months diagnosed with a femoral fracture, which did not necessitate operative treatment, were included. HAB has been used as the treatment of choice for nondisplaced or minimally displaced fractures of the proximal femur as well as for both displaced and nondisplaced femoral shaft fractures. The database was composed of a total of 102 children under the age of 3 with femoral fractures. Twenty-nine (28.4%) patients were treated with HAB and the others with a spica cast. The average age (±SD) at presentation was 21.5 ± 6.1 months. The length of stay was 0.96 ± 1 day. The complication rate was 6.9%. A satisfactory outcome in terms of fracture alignment and union was reported in 100% of the patients treated with HAB. When compared with patients treated with a spica cast, the HAB group were younger, had less severe injuries, shorter lengths of stay, lower complication rates and no need for surgical intervention. HAB can be considered a safe and comfortable alternative in selected children aged 6-36 months with nondisplaced/mildly displaced proximal and diaphyseal femoral fractures.

Case series: Factors of mortality in pediatric patients with pelvic fractures.

OBJECTIVE: No algorithm exists to guide the orthopedic treatment of pediatric patients with pelvic fractures, as most analytic studies have been conducted in adults. The goal of this study was to identify prognostic factors of pelvic fractures, and suggest whether early total care can be safely provided. METHODS: A retrospective trauma database for pediatric pelvic fractures from 2002-2018 was gathered, and patient charts were reviewed. RESULTS: A total of 128 patients were evaluated for pelvic trauma; 99 injuries were secondary to motor vehicle accidents (MVA) (77%), and 19 were secondary to falls (15%). Patients were more likely to be male (71%), older (33% aged 15-16 years, 2% aged 0-1 years), to experience a head trauma (55%), to be treated conservatively (70%), and to survive their trauma (91%). About half of the patients (49%) experienced an additional extremity trauma. When exploring the prognostic factors, mortality was associated with thoracic trauma (72% vs. 27%, p<0.05); a lower reduction of neutrophils levels 48 hours after the initial trauma (-1.34 vs. -7.7, p<0.05); a more significant reduction upon arrival of Prothrombin Time (72% vs. 37%, p<0.01), and an increment of International Normalized Ratio (2.29 vs. 1.26, p<0.01) and Partial Thromboplastin Time (79 vs 28, p<0.01). There was also a higher demand for Fresh Frozen Plasma (24% vs. 9%, p<0.05); Upon presentation, there was a higher Injury Severity Score (49 vs. 21, p<0.001), and a lower systolic Blood Pressure (96 vs. 118, p<0.05); The deceased did not have a very prolonged stay in the hospital (3 days vs. 12 days, P<0.01); Mortality was not significantly associated with either Early Total Care or Damage Control Orthopedics. CONCLUSIONS: Prognostic factors in pediatric patients with pelvic fractures parallel those of the adult population. Pediatric patients tendentiously outlive their pelvic trauma, whether the course of action taken by their surgeons is Conservative by nature, Early Total Care or Damage Control Orthopedics.

Skeletal Changes After Hematopoietic Stem Cell Transplantation in Osteopetrosis.

Osteopetrosis is a rare skeletal dysplasia resulting from an osteoclast defect leading to increased bone mass and density. Hematopoietic stem cell transplantation can rescue the disease phenotype and prevent complications. However, little is known about the skeletal changes hematopoietic stem cell transplantation induces in patients with this disease. The purpose of this study was to describe the skeletal changes after hematopoietic stem cell transplantation in a retrospective cohort of patients diagnosed with osteopetrosis in one medical center over 13 years. For this purpose, all available epidemiological, hematological, biochemical, and radiographic data were collected and quantitatively analyzed. We found a significant early change in bone metabolism markers coinciding with hematopoietic recovery after stem cell transplantation. Hematopoietic stem cell transplantation induced a later significant improvement in both skeletal mineral distribution and morphology but did not lead to complete radiological normalization. Presumably, changes in bone metabolism, skeletal mineral distribution, and morphology were the result of renewed osteoclast function enabling bone remodeling. We propose that biochemical bone metabolism markers and radiological indices be routinely used to evaluate response to hematopoietic stem cell transplantation in patients with osteopetrosis. © 2020 American Society for Bone and Mineral Research.

CT-guided radiofrequency ablation of pediatric osteoid osteoma utilizing a water-cooled tip.

BACKGROUND: Radiofrequency ablation (RFA) has a success rate of 70% to 90% in the treatment of osteoid osteoma (OO). Failures are due to malpositioning of probes or incomplete ablation, possibly related to conventional probes' small heating diameter (range, .5-.8 cm). Cooled-tip probes have a larger heating distance, ablating up to 3 cm, affecting a larger volume, and improving success rate in adults. Concerns regarding damage to surrounding structures and unknown effects on bony growth potential have delayed the widespread use of cooled tips in children. Our goal was to examine whether this technique, when added to conventional RFA, improves the clinical results and whether it carries any additional risks to children. METHODS: A total of 22 patients with OO, 15 boys and 7 girls aged 3.5 to 18 years, were treated with the Cool-tip Tyco probe (Valleylab, Boulder, CO). Fifteen lesions were located in the femur, two in the tibia, and the remainder in the humerus, talus, calcaneus, second metatarsus, and sacrum. The OO was intra-articular in five patients: three in the femur, and one each in the calcaneus and talus. Average postoperative follow-up was 38.5 (range, 16-66) months. RESULTS: The symptoms of all but one patient resolved immediately after a single RFA treatment. One patient experienced partial relief and underwent a second successful ablation. One patient experienced recurrence of disease after 18 months, and one superficial infection occurred. No fractures, neurovascular complications, or growth disturbances were found. CONCLUSIONS: The cooled-tip probe is highly effective and safe for the treatment of pediatric osteoid osteoma, with no adverse events in this age group.

Sonographic detection of radiographically occult fractures in pediatric ankle and wrist injuries.

BACKGROUND: In some pediatric ankle and wrist injuries, the clinical picture is suggestive of a fracture despite negative standard radiographs. OBJECTIVE: The goal of this prospective study was to determine the effectiveness of high-resolution ultrasound (US) in differentiating radiographically occult fractures from sprains. METHODS: During a period of 3 years children aged 2 to 16 years, who sustained an acute ankle and wrist injury suggestive of being a fracture on clinical examination, but with negative radiograph, were referred for high-resolution US. Follow-up radiographs were obtained at 2 to 3 weeks. RESULTS: Fifty-eight children (41 children with ankle injury and 17 children with wrist injury) were examined. In 41 patients, US did not reveal fractures, and in 15, small fractures were detected. All patients with negative US studies had negative follow-up x-rays. In 13 patients with positive US, the follow-up radiographs demonstrated a periosteal reaction. In 2 children (1 in each group) in whom a fracture line identified by US was in the depth of the metaphyseal bone, the follow-up radiogram demonstrated an area of increased bone density. In 2 children, 1 in each group, US diagnosed fractures that were not confirmed by follow-up radiograms. CONCLUSION: Ultrasound is effective in the detecting radiographically silent fractures of the pediatric ankle and wrist. Ultrasound may be used as an adjunct to radiography in clinically suspicious but radiographically negative ankle and wrist injuries. LEVEL OF EVIDENCE: 1.

Close reduction and intramedullary flexible titanium nails fixation of femoral shaft fractures in children under 5 years of age.

We retrospectively reviewed 13 cases of diaphyseal femoral fractures treated with close reduction and intramedullary flexible titanium nails, in children aged 3-5 years. The mean follow-up time was 11.5 months (range 3-29). No cases of nonunion or malunion were noted. Minor complications were observed in two children. Loss of initially restored femoral lengthening had occurred in one child, with nail protrusion and related focal cellulites. Mild postoperative leg-length discrepancy occurred in another child. The healed fractures usually exhibited abundant callus, which allowed an early ambulation. Although the operative approach to simple diaphyseal fractures of the femur at such a young age is not routinely recommended, it can be a valuable option as an initial treatment, or when a conventional treatment with a spica cast has failed. In our group of patients, the parents chose this type of treatment as an alternative to the conventional spica cast.

The outcome of early revision of malaligned pediatric supracondylar humerus fractures.

BACKGROUND: Supracondylar humerus fractures (SCHF) are the most common elbow fractures requiring surgical treatment in the pediatric age group. Most fractures are reduced and stabilised adequately. Yet, post-surgical malunion may occur. The purpose of this study is to evaluate our results of early revision surgery in 21 surgically treated pediatric SCHF with immediate postoperative loss of alignment and compare them with previous reports of late corrective osteotomies. METHODS: Twenty-one pediatric SCHF patients that underwent revision surgery for malalignment within 3 weeks of the initial reduction and fixation consisted the study group. Indications for revision were unacceptable radiographic alignment diagnosed within the first 3 weeks after the index surgery. Clinical outcome included pain, range of motion (ROM) and appearance of the elbow. Radiographic outcome was defined as fracture healing and final alignment, assessed in both coronal and sagittal planes. RESULTS: The average time interval between index and revision surgery was 7.6 days (range 3-18). In revision surgery, closed reduction was performed in 17 out of 21 patients, and open reduction was required in four. In one patient, an external fixator was added. In the most recent follow up, all patients but three regained full ROM. The remaining three had a deficit of 10° or less. Two patients had cubitus varus of 10° or less. All patients had a marked radiographic improvement after revision, especially in the sagittal plane increasing the humero-capitaller flexion angle by an average of 20°. DISCUSSION: Malunion after reduction and Kirschner wires (KW) fixation of SCHF is an uncommonly reported phenomenon. When malunion is recognised after fracture healing, corrective osteotomies may carry a significant complications rate. We describe our favourable experience with early diagnosis and revision surgery of malaligned SCHF.

Divergent elbow dislocation in the very young child: easily treated if correctly diagnosed.

We report a case of a 3-year-old boy that sustained a divergent elbow dislocation and was treated appropriately once the diagnosis was established. The purpose of this report is to bring attention to this rare injury.

The measurements and standardization of humerocondylar angle in children.

BACKGROUND: Supracondylar fractures of the humerus in children are very common. However, the literature regarding measurements of normal anatomical relationships of the distal humerus in sagittal plane is sparse. METHOD: We reviewed the radiographs of normal elbow joints in 142 children treated in our hospital over 2 years. No history of previous trauma of distal humerus was found. The children were separated into 3 age groups (<5, 5-10, and 10-15 years old), and measurement of the humerocondylar angle (HCA) in sagittal plane was performed. RESULTS: The mean age of children in group 1 was 3 years 1 month; in group 2, 7 years 8 months; and in group 3, 12 years. There were 99 boys and 43 girls. The mean HCA was 41.6 degrees (range, 30-70 degrees). No statistically significant influence on HCA by age, sex, or side was found. We found a small number of extreme variants in HCA (down to 30 degrees and up to 70 degrees) in children without any history of previous trauma and having a normal range of elbow motion. CONCLUSIONS: We found that HCA is close to the well-accepted figure of 40 degrees. Interestingly, this value remains the same in all age groups. That means that the geometry of the distal humerus in sagittal plane is established very early during the growth and remains constant. Due to significant individual variations of HCA, it alone cannot be sufficient for final decisions in evaluation and treatment of supracondylar fractures.

Underreduced supracondylar fracture of the humerus in children: clinical significance at skeletal maturity.

BACKGROUND: Although supracondylar fractures of the humerus in children are common, the literature is sparse regarding acceptable limits of reduction of these fractures in the sagittal plane. METHODS: We retrospectively reviewed 223 pediatric cases of supracondylar fractures of the elbow treated in our hospital between the years 1996 and 2000. RESULTS: In 30 patients, we found some degree of underreduction of the extension component of the fracture. Twenty-two of them were followed and evaluated at or close to skeletal maturity. The mean age at the time of fracture was 5.4 years, the mean follow-up was 8.2 years. Radiographic remodeling, range of elbow motion, and awareness of the patients to the functional limitation were evaluated. At final follow-up, 17 (77%) of the patients had radiographic abnormality of the humerocondylar angle (a difference of 5 degrees or more compared with the uninjured side). Eleven patients (50%) had limited elbow flexion, and 7 (31%) were aware of this deficit. Most of the underreductions occurred when reduction was attempted in the emergency department, when the angulation was not appreciated, and when the cast was applied without any reduction attempt. Patients who were left to heal with some degree of extension developed limited end-elbow flexion and were aware of it. Although only 3 patients felt minor subjective functional disability at the last follow-up, 10 patients had unsatisfactory results according to Flynn criteria for motion restriction. CONCLUSIONS: The treating surgeon must be aware of this possible outcome and be more demanding in the reduction of the extension component of the fracture. Otherwise, clinically significant limitation in elbow flexion may occur. Although the reduction of moderately displaced fractures may seem simple, it should be performed under general anesthesia and with radiographic control of reduction and pin placement.

Partial duplication of the scapula.

We report an extremely rare case of partial scapular duplication. Mild shoulder area deformity in a newborn prompted further evaluation that included radiography, ultrasonography and spiral CT. These revealed an additional bone in the area of the left shoulder, above the humerus and lateral to the scapula. The accessory bone articulated with the upper part of the glenoid and caused caudal displacement of the humeral head. However, it did not restrict the normal range of motion in the shoulder joint.

Removal of flexible titanium nails in children.

Removal of hardware in children after orthopaedic procedures is controversial. The authors retrospectively reviewed hospital charts and radiographs of 143 children who underwent removal of flexible titanium nails from the femur and the forearm. In 16 children the nails were removed because of protrusion, skin irritation, and some discomfort. Most of the patients were asymptomatic and underwent nail removal electively, according to the authors' policy for routine hardware removal in children. Complications included unsuccessful nail removal in three children and refractures after nail removal in two. Although the authors are still inclined to remove flexible titanium nails in most of the patients, the need for routine elective execution of this procedure may be questionable.

Computerized navigation for treatment of slipped femoral capital epiphysis.

In situ pinning with a single screw is the treatment of choice for symptomatic slipped capital femoral epiphysis (SCFE). Some technical features are critical and include proper screw entry point, screw direction in relation to the epiphysis, and the length of screw. These are complicated by the deformity created as a result of the posterior slip of the epiphysis. Fluoroscopic based computerized navigation system can increase precision in screw placement while performing the surgical task, and markedly reduce radiation. By using real fluoroscopy-based navigation, the screw can be placed with only two fluoroscopic images. Entry point, length, and precise direction can all be easily determined through this technique.

Sonographic detection of radiographically occult fractures in paediatric ankle injuries.

BACKGROUND: In some paediatric ankle injuries, the clinical picture is suggestive of a fracture despite negative three-view radiographs. OBJECTIVE: To determine the effectiveness of high-resolution US to differentiate radiographically occult fractures from sprains. MATERIALS AND METHODS: During a 12-month period, children aged 5-13 years who had sustained an acute ankle injury suspicious of a fracture on clinical examination, but with negative radiography, were referred for high-resolution US. Follow-up radiographs were obtained after 2-3 weeks. RESULTS: A total of 20 children were examined. In 13, US did not reveal a fracture; small fractures were detected in 7. All patients with negative US studies had negative follow-up radiographs. In six patients with positive US the follow-up radiographs demonstrated a periosteal reaction. In one child in whom a fracture line identified by US was in the depth of the lateral malleolus, the follow-up radiograph demonstrated an area of increased bone density. CONCLUSIONS: US is effective for the detection of radiographically silent fractures of the paediatric ankle. It may be used as an adjunct to radiography in clinically suspicious, but radiographically negative ankle injuries.