Traditional Versus Water-resistant Short Leg Casting: A Randomized Controlled Pilot Study.

INTRODUCTION: We conducted a randomized controlled trial comparing fiberglass short leg casts with traditional cast padding to similar casts with water-resistant cast padding and recorded the opinion of the patient/caregiver and Orthopaedic Technicians (Ortho Techs) that applied and removed the casts. METHODS: Subjects with an injury that would be treated with a short leg cast were enrolled and randomized into a traditional cast or a water-resistant cast. Following cast application, the Ortho Tech that applied the cast completed a questionnaire asking their opinion on ease of application, moldability, padding level, and time taken for application. Following the removal of the study cast, the Ortho Tech that removed the cast completed a questionnaire that included an assessment of skin condition and evidence of the patient poking items inside the cast, as well as their opinion of ease of padding removal, padding durability and longevity, and an overall quality assessment of the cast padding. Following cast removal, the patient (or caregiver) also completed a questionnaire asking for their assessment of comfort, the weight of the cast, itchiness, heat/sweat, smell, and satisfaction. Patients who were treated with an expanded polytetrafluoroethylene cast were also asked about their happiness with the cast's water resistance and asked how long the cast took to dry. RESULTS: Sixty patients were included in this study, thirty in each group. The water-resistant casts took longer to apply than the traditional casts (12.4±4.0 vs. 8.2±3.2 min, P <0.001). The Ortho Techs favored the traditional cast when it came to ease of application ( P <0.001), moldability ( P =0.003), ease of padding removal ( P <0.001), padding durability ( P =0.006), padding longevity ( P =0.005), and their overall impression ( P =0.014). The patients/caregivers responded similarly among the 2 groups for each survey question. CONCLUSIONS: Patients randomized into each cast type tolerated their cast similarly; however, the Ortho Techs involved in this study preferred the traditional cast.

Intermediate-term Outcomes in Adolescent Recurrent Ankle Instability Managed With a Modified Broström-Gould Procedure Augmented With Distal Fibular Periosteum Incorporation.

BACKGROUND: Once a child has developed chronic ankle instability with recurrent events despite conservative treatment, then ligamentous repair is warranted. We utilize a modification of the modified Broström-Gould technique that further incorporates the distal fibular periosteum into the construct. The purpose of this study was to describe the intermediate-term outcomes of our modified Broström-Gould technique for chronic lateral ankle instability in childhood athletes. METHODS: A retrospective review of children who underwent the surgical technique over a 10-year time period (2010 to 2019) was performed, excluding those with <2 years of follow-up. Demographic, surgical, and clinical data were recorded, as well as outcome scores: (1) the Marx activity scale, (2) University of California, Los Angeles activity score, and (3) foot and ankle outcomes score. Recurrent instability events, repeat surgeries, satisfaction with the surgical experience, and return to sport (if applicable) were also recorded. RESULTS: Forty-six children (43 females) with 1 bilateral ankle met the criteria with a mean age at surgery of 14.8 years, and a mean follow-up duration of 4.9 years. The mean Marx activity score was 9.0±5.1, the mean University of California, Los Angeles score was 8.3±1.8, and the mean total foot and ankle outcomes score was 84.0±15.6. Twenty-six ankles (55.3%) reported having at least 1 recurrent episode of instability and 6 of the ankles (12.8%) underwent revision surgery between 3.5 months and 6.5 years of the index procedure. Thirty-nine (84.8%) patients responded that they would undergo our surgery again. CONCLUSION: A modified Broström-Gould procedure can be performed in children with the incorporation of the adjacent periosteum, but recurrence of instability is distinctly possible with longer follow-up with a risk for revision surgery despite good subjective outcomes. LEVEL OF EVIDENCE: Level IV; retrospective case series.

Screw Fixation of Pediatric Tibial Tubercle Fractures.

BACKGROUND: Tibial tubercle fractures are rare injuries that account for <1% of physeal fractures. These fractures are thought to be increasing in frequency, particularly in young, adolescent males who participate in basketball and other sports with repeated running and jumping. The tibial apophysis becomes mechanically vulnerable as the proximal tibial physis closes from posteromedial to anterolateral, enabling the quadriceps to overpower the chondroepiphysis and avulse the proximal tibial epiphysis from the tibial metaphysis. DESCRIPTION: Position the patient supine with the leg on a bump or bone foam. Perform a longitudinal incision centered over the fracture site (i.e., the tibial tubercle); a medial parapatellar incision may be utilized if an intra-articular component is present. Develop medial and lateral soft-tissue flaps to expose the fracture. Evaluate the soft-tissue stripping and capsule. Debride any hematoma, fracture fragments, and soft tissue from the fracture site with use of irrigation and a curet. Use a towel clip, bone clamp, and/or ballpoint pusher to reduce the fragment. Place 2 to 3 parallel guide pins from anterior to posterior, capturing fracture fragments within the epiphysis and apophysis under fluoroscopic guidance. Carefully place a guidewire in the distal fragment to avoid splitting the fragment, which is often small. An arthrotomy or arthroscopy is utilized to assess intra-articular reduction if necessary. Assess and measure pin lengths and placement with use of fluoroscopy. Place screws sequentially to avoid rotation of the fragment and take care to avoid splitting the fragment when placing distal screws. Repair any patellar, capsular, retinacular, or meniscal damage. A suture anchor may be utilized to repair the patellar tendon if necessary. The skin is closed in a layered fashion. Apply a cylinder cast or hinged knee braced locked in extension. ALTERNATIVES: Nonoperative treatment in a long-leg cast in extension may be considered for nondisplaced fractures or fractures that are stably reduced with <2 mm of displacement and acceptable alignment in the cast following reduction. Operative treatment is indicated for fractures with ≥2 mm of displacement, intra-articular extension with an incongruent joint, and for patients who will not tolerate being non-weightbearing in a cast. Closed reduction is generally attempted for fractures without intra-articular extension. If closed reduction is successful, fixation may be performed with Kirschner wires and/or percutaneous screws. Open reduction is often necessary and has been reported to be performed in as many as 98% of surgical cases for tubercle fractures2. RATIONALE: This approach allows access to intra-articular displacement and the ability to obtain a stable, anatomic reduction while addressing concomitant soft-tissue injury, if present. EXPECTED OUTCOMES: The expectation following successful reduction and screw fixation of tibial tubercle fractures is that these young patients will be able to regain their motion and strength, and ultimately return to preinjury activity levels. A consecutive series of 86 patients with surgically treated tibial tubercle fractures found that all patients demonstrated full radiographic healing at the time of the latest follow-up (range, 3 to 34 months), return to full activities between 10 and 42 weeks, return of good to excellent range of motion in 89% of patients, and a 10% to 20% complication rate, including partial physeal arrest, decreased range of motion, quadriceps contracture, and painful implants. Additionally, a systematic review of 23 articles with 336 surgically treated tibial tubercle fractures found 98% of patients return to preinjury activity and knee range of motion with a 28% complication rate (most commonly due to painful implants). IMPORTANT TIPS: Place the fluoroscopic image view across the room from the surgeon for ease of viewing.Use computed tomography or magnetic resonance imaging if the fracture has intra-articular extension.Use 4.5 or 6.5-mm cannulated, partially threaded screws.Carefully monitor for compartment syndrome.Place screws by hand, sequentially.

Growth Modulation by Stimulating the Growth Plate: A Pilot Study.

This study investigates the ability of low-intensity pulsed ultrasound (LIPUS) or direct injection of recombinant growth hormone (rGH) to stimulate local growth of long bones. In a randomized controlled animal trial, healthy immature rabbits were allocated to 1 of the following 4 conditions: epiphyseal rGH periosteal injection, transdermal LIPUS, saline periosteal injection, or no treatment. New bone deposition was labeled with calcein at days 1 and 18, and microscopic measurements of growth were conducted by blinded observers. Statistically significant differences in growth were observed between the LIPUS and rGH stimulated legs compared with contralateral control legs (35% p = 0.04 and 41% p = 0.04, respectively); whereas no difference was observed between the 4 control groups (p = 0.37). There was no evidence of physeal bar formation, suggesting that direct injection of rGH and application of LIPUS around the distal femoral physis in rabbits may have a positive effect on microscopic growth without short-term adverse sequelae.

Defining the volume of consultations for musculoskeletal infection encountered by pediatric orthopaedic services in the United States.

OBJECTIVE: Adequate resources are required to rapidly diagnose and treat pediatric musculoskeletal infection (MSKI). The workload MSKI consults contribute to pediatric orthopaedic services is unknown as prior epidemiologic studies are variable and negative work-ups are not included in national discharge databases. The hypothesis was tested that MSKI consults constitute a substantial volume of total consultations for pediatric orthopaedic services across the United States. STUDY DESIGN: Eighteen institutions from the Children's ORthopaedic Trauma and Infection Consortium for Evidence-based Study (CORTICES) group retrospectively reviewed a minimum of 1 year of hospital data, reporting the total number of surgeons, total consultations, and MSKI-related consultations. Consultations were classified by the location of consultation (emergency department or inpatient). Culture positivity rate and pathogens were also reported. RESULTS: 87,449 total orthopaedic consultations and 7,814 MSKI-related consultations performed by 229 pediatric orthopaedic surgeons were reviewed. There was an average of 13 orthopaedic surgeons per site each performing an average of 154 consultations per year. On average, 9% of consultations were MSKI related and 37% of these consults yielded positive cultures. Finally, a weak inverse monotonic relationship was noted between percent culture positivity and percent of total orthopedic consults for MSKI. CONCLUSION: At large, academic pediatric tertiary care centers, pediatric orthopaedic services consult on an average of ~3,000 'rule-out' MSKI cases annually. These patients account for nearly 1 in 10 orthopaedic consultations, of which 1 in 3 are culture positive. Considering that 2 in 3 consultations were culture negative, estimating resources required for pediatric orthopaedic consult services to work up and treat children based on culture positive administrative discharge data underestimates clinical need. Finally, ascertainment bias must be considered when comparing differences in culture rates from different institution's pediatric orthopaedics services, given the variability in when orthopaedic physicians become involved in a MSKI workup.

Medial Epicondyle Fractures: Biomechanical Evaluation and Clinical Comparison of 3 Fixation Methods Used in Pediatric Patients.

BACKGROUND: Screw fixation is the most commonly employed fixation strategy for displaced medial epicondyle fractures, but in younger patients with minimal ossification, the fracture fragment may not accommodate a screw. In these situations, Kirschner-wires (K-wire) or suture anchors may be utilized as alternatives. The purposes of this study were to examine the biomechanical properties of medial epicondyle fractures fixed with a screw, K-wires, or suture anchors, to evaluate clinical outcomes and complications of patients 10 years of age or younger treated with these approaches, and to perform a cost-analysis. METHODS: Biomechanical assessment: Immature pig forelimbs underwent an osteotomy through the medial epicondyle apophysis, simulating a fracture. These were then fixed with a screw, K-wires or suture anchors. Cyclic elongation (mm), displacement (mm), load to failure (N), and stiffness (N/mm) were assessed. Clinical assessment: a retrospective review was performed of patients 10 years of age or younger with a medial epicondyle fracture fixed with these strategies. Radiographic outcomes, postoperative data and complications were compared. These data were used to perform a cost-analysis of each treatment approach. RESULTS: Biomechanically, screws were stronger (P=0.047) and stiffer (P=0.01) than the other constructs. Clinically, 51 patients met inclusion criteria (screw=27, wires=11, anchor=13). Patients treated with K-wires were younger (P<0.05) and patients treated with screw fixation had a shorter casting duration (P=0.008). Irrespective of treatment strategy, all fractures healed (100%) and only 1 patient in the screw group lost reduction. Clinical outcomes and complications were similar between groups, but the suture anchor group was less likely to require a second surgery for implant removal (P<0.05). This lower reoperation rate led to a cost-saving of 10%. CONCLUSIONS: Biomechanically, all 3 approaches provided initial fixation exceeding the forces observed across the elbow joint with routine motion. The screw construct was the strongest and stiffest. Clinically, all 3 strategies were acceptable, with screw fixation offering a shorter casting duration, but greater implant removal need with higher associated costs.

What's New in Pediatric Orthopaedic Trauma: The Upper Extremity.

BACKGROUND: Upper extremity fractures are the most common fractures in children. Many high-quality studies have been reported regarding operative and nonoperative treatment of different upper extremity fractures in children. This review will summarize the literature on 4 major upper extremity fractures in children over the past 5 years. METHODS: PubMed and Embase databases were queried for publications in the English language on supracondylar humerus (SCH) fractures, lateral humeral condyle fractures, medial epicondyle fractures, and clavicle fractures from January 1, 2013 until November 1, 2018. Papers believed to yield significant findings to our profession were included in this review. RESULTS: A total of 1150 studies were related to the search terms, and after cursory assessment, the authors elected to fully review 30 papers for this publication: 12 related to SCH fractures, 10 related to lateral condyle humerus fractures, 3 related to medial epicondyle humerus fractures, and 5 involving clavicle fractures. The level of evidence for these studies was either level III or IV. CONCLUSIONS: SCH fractures are increasingly being treated at trauma centers or pediatric hospitals in the United States. The rate of open reduction in this fracture type is decreasing overall, but the flexion type SCH fractures (especially in the setting of ulnar nerve injury) continue to be at increased risk of requiring open reduction. There has been a paradigm shift in the treatment of lateral condyle humerus fractures, wherein authors have demonstrated successful management with closed reduction and percutaneous pinning when an adjunct arthrogram is performed demonstrating articular congruity. More studies are needed to find the optimal treatment for displaced medial epicondyle and clavicle fractures in adolescents, as results to date do not necessarily mirror those seen in the adult population. LEVEL OF EVIDENCE: Level IV.

What's New in Pediatric Orthopaedic Trauma: The Lower Extremity.

BACKGROUND: Skeletal trauma is a primary tenet of pediatric orthopaedics. Many high-quality studies have been published over the last few years with substantial relevance to the clinical practice of pediatric orthopaedic trauma. Because of the volume of literature on the subject, this review excludes upper extremity trauma and focuses on the publications affecting the lower extremity. METHODS: An electronic search of the PubMed database was performed utilizing keywords for pediatric lower extremity trauma: pelvic injuries, femur fractures, tibial shaft fractures, femur fractures, ankle fractures, and foot fractures. All 835 papers related to the treatment of pediatric orthopaedic trauma of the lower extremity published from January 1, 2012 to July 31, 2017 were reviewed, yielding 25 papers that were believed to contribute significant findings to the profession. RESULTS: Of the 25 papers selected for presentation within this review, 8 related to tibial shaft injuries, 6 involved the pelvis, 5 involved femur fractures, 4 related to ankle injuries, 2 involved foot injuries, and 1 regarding trauma and venous thromoembolism. The level of evidence for these studies were either level III or IV. CONCLUSIONS: Higher-grade pediatric pelvic fractures do not correlate with increased severity of splenic or hepatic injuries. Successful union of femur fractures in older children can be obtained by surgeon preferred method of surgical management. Pediatric tibia shaft fractures should be managed conservatively in most cases; however, fractures with >20% of displacement and associated fibula fractures have a 40% risk of requiring delayed surgical stabilization. Vigilance remains the sin qua non regarding identification and appropriate management of compartment syndrome and venous thromboemobolism in children. Many Salter-Harris I distal fibula fractures are now believed to be ligamentous injury and can be treated as such. Calcaneous fractures remain uncommon in pediatrics, but minimally invasive approaches of surgical reduction and fixation may reduce complications in management. LEVEL OF EVIDENCE: Level IV.

Interposition Dermal Matrix Xenografts: A Successful Alternative to Traditional Treatment of Massive Rotator Cuff Tears.

BACKGROUND: Management of massive rotator cuff tears in shoulders without glenohumeral arthritis remains problematic for surgeons. Repairs of massive rotator cuff tears have failure rates of 20% to 94% at 1 to 2 years postoperatively as demonstrated with arthrography, ultrasound, and magnetic resonance imaging. Additionally, inconsistent outcomes have been reported with debridement alone of massive rotator cuff tears, and limitations have been seen with other current methods of operative intervention, including arthroplasty and tendon transfers. HYPOTHESIS: The use of interposition porcine acellular dermal matrix xenograft in patients with massive rotator cuff tears will result in improved subjective outcomes, postoperative pain, function, range of motion, and strength. STUDY DESIGN: Case series; Level of evidence, 4. METHODS: Sixty patients (61 shoulders) were prospectively observed for a mean of 50.3 months (range, 24-63 months) after repair of massive rotator cuff tears with porcine acellular dermal matrix xenograft as an interposition graft. Subjective outcome data were obtained with visual analog scale for pain score (0-10, 0 = no pain) and Modified American Shoulder and Elbow Surgeons (MASES) score. Active range of motion in flexion, external rotation, and internal rotation were recorded. Strength in the supraspinatus and infraspinatus muscles was assessed manually on a 10-point scale and by handheld dynamometer. Ultrasound was used to assess the integrity of the repair during latest follow-up. RESULTS: Mean visual analog scale pain score decreased from 4.0 preoperatively to 1.0 postoperatively ( P < .001). Mean active forward flexion improved from 140.7° to 160.4° ( P < .001), external rotation at 0° of abduction from 55.6° to 70.1° ( P = .001), and internal rotation at 90° of abduction from 52.0° to 76.2° ( P < .001). Supraspinatus manual strength increased from 7.7 to 8.8 ( P < .001) and infraspinatus manual strength from 7.7 to 9.3 ( P < .001). Mean dynamometric strength in forward flexion was 77.7 N in nonoperative shoulders (shoulder that did not undergo surgery) and 67.8 N ( P < .001) in operative shoulders (shoulder that underwent rotator cuff repair with interposition porcine dermal matrix xenograft). Mean dynamometric strength in external rotation was 54.5 N in nonoperative shoulders and 50.1 N in operative shoulders ( P = .04). Average postoperative MASES score was 87.8. Musculoskeletal ultrasound showed that 91.8% (56 of 61) of repairs were fully intact; 3.3% (2 of 61), partially intact; and 4.9% (3 of 61), not intact. CONCLUSION: Patients who underwent repair of massive rotator cuff tears with interposition porcine acellular dermal matrix graft have good subjective function as assessed by the MASES score. Patients have significant improvement in pain, range of motion, and manual muscle strength. Postoperative ultrasound demonstrated that the repair was completely intact in 91.8% of patients, a vast improvement compared with results previously reported for primary repairs of massive rotator cuff tears.