In-hospital post-operative fever after posterior spinal fusion for neuromuscular scoliosis in non-ambulatory cerebral palsy patients: is there value for clinical workup for an isolated fever?

PURPOSE: Children with neuromuscular scoliosis (NMS) resultant to cerebral palsy (CP) are at a heightened risk for complications following surgical treatment. These children have a reported 22-64% rate of post-operative fever development, and additional fever workup has been shown to have limited clinical utility. However, this has yet to be investigated in the setting of an accelerated discharge (AD) pathway. METHODS: A retrospective review of children with non-ambulatory CP treated at 2 centers with posterior spinal fusion (PSF) for NMS was performed. One institution uses a standardized AD post-operative pathway for NMS patients, whereas the second institution had no standard pathway. A post-operative fever was defined as temperature > 38.5 °C. Target outcome variables included the development of a fever as well as re-admission within 90 days of surgery. RESULTS: A total of 122 non-ambulatory children were identified (82% GMFCS V, mean 14.3 ± 3.4 years at surgery). A post-operative fever was documented in 75.4% of patients (N = 92) and all additional culture studies reported negative results. Children admitted to the PICU were more likely to undergo a fever workup (P < 0.001) and more likely to receive additional or extended antibiotic therapy (P < 0.001). Children treated at the AD pathway had a significantly lower rate of PICU admission (P < 0.001). Post-operative PICU admission was associated with a post-operative fever (49.5% vs 25%, P = 0.03). CONCLUSION: Non-ambulatory CP children with NMS undergoing PSF have a 75.4% rate of developing early post-operative fevers. Reflexive fever work-ups provided limited clinical utility while increasing the hospital length of stay and potentially exposing patients to antibiotic-related complications.

Vertebral body tethering for Lenke 1A curves: the lumbar modifier predicts less optimal outcomes.

INTRODUCTION: The addition of the L4 "AR" and "AL" lumbar modifier for Lenke 1A idiopathic scoliosis (IS) has been shown to direct treatment in posterior spinal fusion; however, its utility in vertebral body tethering (VBT) has yet to be evaluated. METHODS: A review of a prospective, multicenter database for VBT in IS was performed for patients with Lenke 1A deformities and a minimum of 2 years follow-up. Patients were categorized by their lumbar modifier (AR vs AL). Less optimal VBT outcome (LOVO) was defined as a final coronal curve > 35°, lumbar adding-on, or revision surgery for deformity progression or adding-on. RESULTS: Ninety-nine patients met inclusion criteria (81% female, mean 12.6 years), with 55.6% being AL curves. Overall, there were 23 instances of tether breakage (23.3%) and 20 instances of LOVO (20.2%). There was a higher rate of LOVO in AR curves (31.8% vs 10.9%, P = 0.01). Patients with LOVO had greater preoperative deformity, greater apical translation, larger coronal deformity on first erect radiographs, and less coronal deformity correction. Failure to correct the deformity < 30° on first erect was associated with LOVO, as was LIV selection short of the last touch vertebra (TV). Independent risk factors for LOVO included AR curves (OR 3.4; P = 0.04) and first erect curve magnitudes > 30 degrees (OR 6.0; P = 0.002). DISCUSSION: There is a 20.2% rate of less optimal VBT following VBT for Lenke 1A curves. AR curves are independently predictive of less optimal outcomes following VBT and require close attention to LIV selection. Surgeons should consider achieving an initial coronal correction < 30 degrees and extending the LIV to at least the TV to minimize the risk of LOVO.

Postoperative CT imaging to characterize fusion in pediatric and adolescent vertebral column resection.

BACKGROUND: Vertebral column resection (VCR) is a powerful corrective technique for the management severe, rigid spinal deformities but does carry a relatively high complications rate. One of the feared complications is pseudarthrosis which places the patient at risk for implant failure. We present a single-center experience with post-operative computed tomography (CT) imaging at the osteotomy site to screen for impending pseudarthrosis. METHODS: A retrospective review of a single surgeon series of posterior-only VCR performed for severe pediatric and adolescent spinal deformities was performed. Demographic, radiographic, and clinical data were collected. Patients underwent postoperative CT imaging at the osteotomy site 6-9 months following VCR with grading of the osteotomy fusion. Patients with impending pseudarthrosis were recommended for prophylactic revision surgery. RESULTS: Thirty-three patients were included (mean age 11.6 ± 4.9 years, 54.5% female), undergoing a mean 1.9 level VCR. Kyphoscoliosis accounted for 75.7% (N = 25/33) of cases with 45.5% of all cases being congenital etiology and 60.6% having at least 1 previous surgery. Postoperative CT imaging was performed in 22 patients at a mean of 7.8 months following VCR. Two patients were identified as having impending pseudarthrosis with one undergoing revision surgery to enhance the posterior fusion, with addition of a third rod while one patient refusing surgery who subsequently developed broken hardware requiring revision surgery. No patient with a stable fusion on CT imaging developed a clinically significant pseudarthrosis. DISCUSSION: Postoperative CT imaging of the osteotomy is useful in screening for impending pseudarthrosis and can aide in decision making for clearance to return to activity or the need for prophylactic intervention following VCR in pediatric and adolescent patients. We advocate that obtaining routine CT imaging of the osteotomy site at 6-9 months may identify potential complications earlier and allow for prophylactic intervention.

The evolving stall rate of magnetically controlled growing rods beyond 2 years follow-up.

PURPOSE: Magnetically controlled growing rods (MCGR) have become the dominant distraction-based implant for the treatment of early onset scoliosis (EOS). Recent studies, however, have demonstrated rising rates of implant failure beyond short-term follow-up. We sought to evaluate a single-center experience with MCGR for the treatment of EOS to define the rate of MCGR failure to lengthen, termed implant stall, over time. METHODS: A single-center, retrospective review was conducted identifying children with EOS undergoing primary MCGR implantation. The primary endpoint was the occurrence of implant stalling, defined as a failure of the MCGR to lengthen on three consecutive attempted lengthening sessions with minimum of 2 years follow-up. Clinical and radiographic variables were collected and compared between lengthening and stalled MCGRs. A Kaplan-Meier survival analysis was conducted to assess implant stalling over time. RESULTS: A total of 48 children met inclusion criteria (mean age 6.3 ± 1.8 years, 64.6% female). After a mean 56.9 months (range of 27 to 90 months) follow-up, 25 (48%) of children experienced implant stalling at a mean of 26.0 ± 14.1 months post-implantation. Kaplan-Meier survival analysis demonstrated that only 50% of MCGR continue to successfully lengthen at 2 years post-implantation, decreasing to < 20% at 4 years post-implantation. CONCLUSION: Only 50% of MCGR continue to successfully lengthen 2 years post-implantation, dropping dramatically to < 20% at 4 years, adding to the available knowledge regarding the long-term viability and cost-effectiveness of MCGR in the management of EOS. Further research is needed to validate these findings.

Impact of surgical treatment on parent-reported health related quality of life measures in early-onset scoliosis: stable but no improvement at 2 years.

PURPOSE: The etiology of early-onset scoliosis (EOS) has been shown to significantly influence baseline parent-reported health-related quality of life (HRQoL) measures as assessed by the Early Onset Scoliosis Questionnaire (EOSQ). We sought to assess the influence of distraction-based surgery and scoliosis etiology on EOSQ 2 years following surgical intervention remains unclear. METHODS: A retrospective review of a multi-center prospective EOS database was performed. Children untreated with distraction-based, growth friendly instrumentation for EOS with completed baseline and 2-year post-surgical EOSQ were included. Children were subdivided by curve etiology individually and in combined cohorts (congenital/idiopathic [C/I], neuromuscular/syndromic [NMS]). EOSQ domains and compositive HRQoL score at presentation and 2-year follow-up were compared across C-EOS etiologies. Minimal clinically important difference (MCID) was defined as ≥ 20% change in domain score and compared across etiologies. RESULTS: 150 children with EOS met inclusion criteria (mean 7.09 ± 2.6 years, 58.9% female). There were no differences in EOSQ domains between Congenital vs. Idiopathic nor NM vs. Syndromic etiologies at any timepoint. Combined C/I children demonstrated significantly higher EOSQ scores than combined NMS at initial and 2-years post-treatment. Etiology remained the only independent predictor of 2-year EOSQ composite HRQoL score. Overall, the vast majority of children demonstrated stable HRQoL composite scores, with a trend toward more positive MCID in NMS etiologies. CONCLUSION: EOS etiology remains the most significant influence on EOSQ scores 2 years following surgical intervention. However, the majority of patients, regardless of etiology, maintain stable HRQoL scores suggesting that surgery may only serve to stabilize HRQoL at 2 years.

Avoiding PICU admission following PSF for neuromuscular scoliosis in non-ambulatory cerebral palsy managed with ERAS protocol.

PURPOSE: Children with neuromuscular scoliosis (NMS) undergoing posterior spinal fusion (PSF) have historically been managed post-operatively in the pediatric intensive care unit (PICU) due to institutional tendencies. This study sought to define risk factors for PICU admission when using an enhanced recovery after surgery (ERAS) pathway. METHODS: A retrospective review of children with non-ambulatory (GMFCS 4 or 5) cerebral palsy undergoing PSF for NMS performed at two institutions by 5 surgeons. Both institutions have a pre-existing ERAS pathway for NMS patients consisting of post-surgical transfer to the hospital floor with early reinstitution of feeding and mobilization. PICU admission is used at the discretion of the surgeon and anesthesiologist rather than by institutional decree. Patient and surgical factors were assessed for risk factors of PICU admission. RESULTS: A total of 103 children were included (84% GMFCS 5, mean 14.52 years (± 3.4 years)). Forty children (38.8%) required postoperative PICU admission. PICU admission was associated with seizure disorder (P = 0.09), pre-existing feeding tube (P = 0.003), tracheostomy (P = 0.03), and modified GMFCS-5 subclassification (P = 0.003). Independent predictors of PICU admission include pre-existing feeding (Odd's ratio = 2.9, P = 0.02) and length of surgery (Odd's ratio = 2.6, P < 0.001), with surgery lasting ≥ 5.0 h having an 82.5% sensitivity and 63.5% specificity (AUC 0.8, P < 0.001) for post-operative PICU admission. CONCLUSION: The majority of children with non-ambulatory cerebral palsy can be successfully managed on the hospital floor following PSF. The extent of central neuromotor impairment is significantly associated with PICU admission along with surgery lasting longer than 5 h.

Senior Military Rank Is Associated With Higher Rates of Return to Running and Unrestricted Activity Among Military Servicemembers After Surgical Repair of Patellar Tendon Rupture at 1-Year Follow-up.

Purpose: To evaluate 1-year outcomes in active-duty servicemembers who underwent patellar tendon rupture repair and to identify baseline variables associated with return to activity. Methods: We performed a retrospective review of all active-duty servicemembers undergoing primary patellar tendon rupture repair between 2009 and 2014. All patients had a minimum 12-month follow-up. Demographic variables were recorded, as well as ability to return to impact activities and remain on active-duty status. Rates of recurrent rupture and revision surgery were identified. Univariate analysis was performed to assess relations between outcomes and baseline variables. Results: A total of 123 patients met the inclusion criteria (average age, 33.5 ± 6.6 years; 99% male patients) with a mean follow-up period of 4.3 ± 2.2 years. Whereas 67.4% of patients returned to running at an average of 8.3 months from index surgery, only 42.4% of patients resumed unrestricted occupational function. Higher rates of return to running were observed among patients with senior military rank (P = .046). Senior military rank was also associated with a higher rate of return to unrestricted active-duty status (P = .006). Logistic regression analysis showed an association between postoperative pain (odds ratio [OR], 0.684; 95% confidence interval [CI], 0.56-0.84; P < .001) and return to running, between postoperative pain (OR, 0.77; 95% CI, 0.60-0.98; P = .033) and return to active duty, and between rank (OR, 2.06; 95% CI, 1.04-4.07; P = .037) and return to active duty. Patients who sustained injuries during deployment had a higher rate of recurrent rupture (26.1% vs 9.3%, P = .028). Conclusions: At 1-year follow-up, approximately two-thirds of military servicemembers undergoing primary patellar tendon repair had returned to running after surgery, whereas fewer than one-half returned to full military duty. Younger age and more senior military rank were associated with higher rates of return to running. Additionally, servicemembers of higher rank, particularly officers, had statistically higher rates of return to unrestricted activity. Level of Evidence: Level IV, therapeutic case series.

1- vs. 2-year follow-up after posterior spinal fusion for AIS: what additional information is gained?

PURPOSE: Traditionally, 2-year follow-up data have been the established standard for reporting clinical outcomes following spinal deformity surgery. However, previous studies indicate that 2-year follow-up does not represent long-term outcomes. Currently, there is no clear data that demonstrate a difference in outcomes between the 1 and 2 years postoperative time-periods following posterior spinal fusions (PSF) for adolescent idiopathic scoliosis (AIS). METHODS: A multi-center, prospective database was queried for AIS patients treated with PSF. Clinical outcome scores, assessed by SRS-22, coronal and sagittal radiographic parameters were assessed at time periods: 6 months, 1 year, and 2 years post operatively. Complications and reoperation rates were also assessed. Statistical analysis compared outcomes variables across time-points to assess for significant differences. RESULTS: 694 patients (82.6% female, mean age at surgery 14.9 ± 2.13 years) were identified. Between post-operative year 1 and 2, significant difference in SRS-22 domain scores were present for function domain (4.5 vs. 4.6; p < 0.001), mental health domain (4.3 vs. 4.2; p < 0.001), and total domain score (4.4 vs. 4.4; p = 0.03) but were below the minimal clinically important difference threshold. New complication development was significantly higher within the first year following surgery than the 1-2 year follow-up period (p < 0.001) with greater complication severity within the 0-1 year follow-up period (P = 0.03). CONCLUSION: There are no clinically important changes in SRS-22 domain scores between 1 and 2 years following PSF for AIS, with higher complications in the first year following PSF. Two-year follow-up data provide little added clinical information while under-estimating the cumulative complication and reoperation rates at long-term follow-up.

Understanding Noise Exposure During Cast Removal: The Effect of Cast Saw Type and Casting Material.

BACKGROUND: Cast removal can be associated with considerable noise exposure, especially impacting the pediatric patient and provider. Although noise generation from cast saws has been deemed safe by the U.S. Occupational Safety and Health Administration and the U.S. Centers for Disease Control and Prevention standards, there are no current studies on the effects of cast material on noise levels generated. METHODS: A simulated casting model utilizing plaster, fiberglass, and plaster with fiberglass overwrapping was used for experimental testing. Four different casting conditions were tested, with 5 samples in each group. Samples were tested using 2 different cast saws: a standard cast saw and a quiet saw. Each saw was used for 30 seconds of continuous cutting for each sample, measuring peak, mean, and minimum sound levels in decibels with sound level meters. Noise levels were measured at 18, 36, and 72 in (20, 91, and 183 cm) from the saw, comparing saw and cast types against ambient noise and baseline cast-saw noises. Between-group comparisons were performed using univariate analyses. RESULTS: Mean noise generation differed between casting materials, with plaster material demonstrating significantly greater noise levels than fiberglass casts at all distances for each saw type. Increasing fiberglass thickness significantly increased the mean noise levels with standard (18-in distance for 10 and 5 ply: 87.4 and 85.8 dB; p = 0.0004) and quiet cast saws (78.3 and 76.1 dB; p = 0.041. Additionally, the quiet cast saw provided a 5.7 to 10.6 dB reduction in mean and peak noise levels, varying by casting material and distance. CONCLUSIONS: Occupational noise exposure can be mitigated with the use of fiberglass casting material that is not >5 ply in thickness, with a quiet cast saw for removal. The use of a quiet cast saw substantially decreased noise exposure to patients and staff members over standard orthopaedic cast saws.

Continued Increase in Cost of Care Despite Decrease in Stay After Posterior Spinal Fusion for Adolescent Idiopathic Scoliosis.

INTRODUCTION: Previous studies have demonstrated decreased hospital length of stay (LOS) for children undergoing posterior spinal fusion (PSF) for adolescent idiopathic scoliosis (AIS). METHODS: Hospitalization event data from the Kids Inpatient Database were queried for all PSF events for AIS performed in 2009, 2012, and 2016 using diagnosis and surgical codes. Data were subdivided into two groups: pre-enhanced recovery after surgery (ERAS) (2009 and 2012) and post-ERAS (2016). The primary outcome variables were LOS and total treatment charge (adjusted for 2020 inflation). Univariate and multivariate analysis were performed to identify differences in outcome variables. RESULTS: A total of 12,010 unique hospitalization events were identified, 74% female, mean 14.3 years. There was a decrease in LOS (pre-ERAS: 5.4 ± 4.0 versus 4.3 ± 3.2 days, P < 0.0001) with an increase in adjusted total treatment charge (pre-ERAS $193,544.4 ± $108,116.1 versus $200,469.1 ± $110,112.6; P = 0.0013). Pre-ERAS, male sex, smaller hospital, and non-Medicaid insurance were predictive of longer LOS, whereas pre-ERAS, older age, non-White race, male sex, hospital outside the Northeast, and non-Medicaid insurance were predictive of higher treatment costs. DISCUSSION: There continues to be a significant decrease in LOS for PSF hospitalization events for AIS; however, total treatment charges continue to rise. Future research should investigate potential factors influencing total treatment charges after PSF for AIS.

Surgically Treated Femoral Neck Stress Fractures Are Likely to Result in Military Separation During Basic Combat Training.

BACKGROUND: Femoral neck stress fractures are a common condition affecting military service members, most noticeably during basic combat training. Previous studies have investigated the risk factors for femoral neck stress fracture development in basic trainees and outcomes associated with treatment; however, few studies have focused on operatively treated femoral neck stress fracture in the military trainee. Doing so would be important not only for the military, but also providers caring for athletes, such as distance runners, who have a heightened risk for femoral neck stress fracture development. QUESTIONS/PURPOSES: (1) What proportion of US Army trainees completing basic combat training at Fort Jackson, SC, USA, who undergo surgery for femoral neck stress fracture during basic training subsequently leave military service because of the injury? (2) What factors are related to the patient or the fracture are associated with a higher likelihood of military separation? (3) What factors on the initial MRI are associated with progression of the stress fracture extent? METHODS: A retrospective study of a longitudinally maintained database of stress injuries involving basic combat trainees from a single military post was reviewed over a 3-year period. Inclusion criteria included basic trainees undergoing surgery for a femoral neck stress fracture between January 2018 and June 2020 with a minimum of 1-year follow-up. Surgery was indicated for service members with complete and tension-sided femoral neck stress fractures and those with high risk compression-sided stress fractures, generally representing fractures involving more than 50% of the femoral neck width. Over the study period, 57 service members (51% [29 of 57] women with a mean age of 24 years) underwent surgery for a femoral neck stress fracture, and all 57 had a minimum of 1-year follow-up. Identified service members underwent independent data collection including injury and radiographic parameters based on chart and imaging review. Documented fracture line progression on repeat imaging was present in 39% of service members, with a mean fracture line progression of 55% of the femoral neck width. Service members were subdivided based upon the ability to return to military service at 1 year. Univariate analysis was performed using patient and injury variables to identify factors associated with the ability to return to military service. RESULTS: Overall, 58% (33 of 57) of service members who had a femoral neck stress fracture treated surgically underwent military separation. A higher proportion of service members who demonstrated fracture line progression leading to surgical treatment remained in the military (58% [14 of 24] versus 30% [10 of 33]; odds ratio 0.3 [95% confidence interval (CI) 0.1 to 0.9]; p = 0.03). With the numbers available, we found no other patient- or fracture-related variables associated with military separation, although we suspect we may have been underpowered on some of these comparisons, in particular gender (61% [20 of 33] of individuals separated after surgery for this injury were women compared with 38% [9 of 24] who were retained; OR 2.6 [95% CI 0.9 to 7.56]; p = 0.09). The extent of osseous edema on T1-weighted imaging in association with a hip effusion demonstrated a significant positive correlation with final fracture percentage (r = 0.62; p = 0.003). CONCLUSION: Military service members with a femoral neck stress fracture initially managed nonoperatively but with progression of the fracture line requiring surgical intervention were more likely to return to military duties and complete basic combat training, suggesting that early diagnosis of femoral neck stress fractures may be associated with better functional recovery after surgical treatment. Additionally, the extent of the osseous edema on initial MRI T1-weighted imaging sequences may help predict the final extent of femoral neck stress fractures on repeat imaging. Further investigations should incorporate patient-reported outcomes and further explore factors associated with fracture progression and the inability to return to active duty or sport. LEVEL OF EVIDENCE: Level III, therapeutic study.

Femoral Neck Stress Fractures in Athletes and the Military.

➤: Femoral neck stress fractures (FNSFs) are an infrequent condition in athletic and military populations. ➤: A high index of suspicion with liberal use of magnetic resonance imaging (MRI) is vital for early recognition and treatment initiation. ➤: An associated hip effusion on MRI is a risk factor for an evolving stress injury and requires close assessment and consideration for repeat MRI. ➤: Stress reactions and stable, incomplete FNSFs (<50% of femoral neck width) can be treated nonsurgically. ➤: Surgical intervention is accepted for high-risk, incomplete (≥50% of femoral neck width), and complete FNSFs. ➤: Overall, there is a paucity of high-quality literature on the rates of return to activity following FNSF.

Primary Medial Patellofemoral Ligament Reconstruction in Military Servicemembers: Can We Reliably Restore Preinjury Function and Stability?

BACKGROUND: Medial patellofemoral ligament (MPFL) reconstruction for patellar instability is a commonly performed procedure with a reported high rate of return to preinjury activity. However, no previous study has assessed the functional outcomes of military servicemembers undergoing MPFL reconstruction. HYPOTHESIS: Primary MPFL reconstruction confers patellar stability, but with limited return to preinjury function and ability to maintain unrestricted military active duty status. STUDY DESIGN: Case series; Level of evidence, 4. METHODS: Using the Management Analysis and Reporting Tool database, we conducted a retrospective review of active duty servicemembers throughout the US Department of Defense Health System who underwent primary MPFL reconstruction between 2012 and 2015. Demographic variables were recorded as well as ability to return to impact activities-defined as running, jumping, rucking with a load >40 pounds (18 kg), and returning to airborne operations-and to remain on active duty status. The rates of recurrent instability and the need for subsequent surgeries were identified and assessed for statistical significance using uni- and multivariate analyses. Patients were evaluated for a minimum of 2 years postoperatively. RESULTS: Of the 213 patients who underwent primary MPFL reconstruction, including 34 with concomitant tibial tubercle osteotomy, 19 (8.9%) patients developed recurrent instability. The presence of bilateral patellar instability was associated with higher recurrence rate. Patients with bilateral instability comprised 47.3% of those with recurrence but only 24.9% of patients without recurrence (P = .019). Impact activity restrictions were present in 57.6% of patients (n = 121), with 86 patients (52.1%) undergoing medical separation from the military. Patients who were prescribed activity restriction before surgery were significantly more likely to have postoperative activity restrictions (64.5%; P = .019), and junior enlisted servicemembers were more likely to be medically separated from service postoperatively than higher ranking senior enlisted members or officers. CONCLUSION: Only 42.4% of US military servicemembers undergoing primary MPFL reconstruction were able to return to unrestricted impact activity after surgery. Bilateral instability negatively affected return to impact activities. Military servicemembers, particularly junior enlisted members, should be counseled on this poor prognosis for a full return to unrestricted activity postoperatively.

Application of a Halo Fixator for the Treatment of Pediatric Spinal Deformity.

BACKGROUND: In spine surgery, the halo fixator was initially utilized to stabilize cervical fusions in patients with poliomyelitis. More recently, the indications for halo fixation have evolved to include stabilization and definitive treatment for upper cervical spine injuries (Jefferson fractures, atlanto-occipital dissociations, odontoid fractures, etc.), treatment of atlantoaxial rotatory subluxation, stabilization of long cervical fusions, and preoperative traction. In the realm of pediatric spinal deformity, halo fixation has proved to be a valuable resource for severe or neglected spinal deformities. In this video article, we demonstrate the application of a halo fixator in a pediatric patient with severe scoliosis. DESCRIPTION: The procedure includes appropriate pin placement in the safe zones of the skull performed under either general anesthesia or local anesthesia. Pins are secured to a halo frame that is sized to be 2 cm larger than the circumference of the skull and are tightened according to age-specific torque guidelines. ALTERNATIVES: Alternative treatments vary from cervical spine immobilization to definitive surgical treatment in the spine, or even spinal osteotomies, depending on the underlying spinal pathology. RATIONALE: The halo fixator works by limiting motion of the cervical spine in flexion, extension, and axial rotation. The halo is also able to control and correct translational injuries of the cervical spine. In the setting of spinal deformity, the halo fixator can also be utilized to overcome the effects of gravity and lengthen the spine. EXPECTED OUTCOMES: For spinal deformities, the halo fixator can be expected to lengthen the spine and increase deformity flexibility prior to definitive surgical treatment in the spine or growth-friendly spinal instrumentation. IMPORTANT TIPS: Correct identification of safe zones for pin placement is vital to correct pin placement.For pediatric patients, it is important to obtain fixation with a minimum of 6 to 8 pins.Pins should be tightened with use of a torque-limiting wrench, up to no more than 1 in/lb (55.9 mm/kg) per year of age, up to a maximum of 8 in/lb (447.9 mm/kg).Applied traction should be a maximum of 50% of the body weight of the patient.Neurovascular examination is vital following application of weight.

Post-operative radiculitis following one or two level anterior lumbar surgery with or without posterior instrumentation.

The purpose of this study was to define risk factors for non-compression radiculitis following anterior lumbar surgery with or without posterior instrumentation and to define a time to resolution. In this study, we followed 58 consecutive patients who had anterior lumbar surgery with or without posterior instrumentation. We identified those with and without post-operative radiculitis. There as a 36.5% rate of postoperative radiculitis. We found that there was a moderate to strong correlation with height change and radiculitis (p = 0.044). Additionally patients treated with rh-BMP2 had a higher risk of developing symptoms. In all of the patients who developed postoperative radiculitis, symptoms resolved by 3 months. In conclusion 36.5% of patients developed post operative radiculitis. This was associated with the use of rh-BMP2, as well as increasing disc height through surgery. All symptoms resolved by 3 months posoperatively.

In-hospital opioid usage following posterior spinal fusion for adolescent idiopathic scoliosis: Does methadone offer an advantage when used with an ERAS pathway?

PURPOSE: Intraoperative methadone has been shown to decrease opioid medication requirement following posterior spinal fusion (PSF) for adolescent idiopathic scoliosis (AIS). No study to date has investigated the effect of methadone on opioid medication requirement when used in conjunction with an enhanced recovery after surgery (ERAS) protocol following PSF. METHODS: A retrospective cohort study was performed at a single, tertiary care pediatric hospital. Patients with AIS undergoing PSF were consecutively given a single intra-operative methadone dose and matched 1:2 to a AIS control group without methadone. Patients were matched for age, curve magnitude, levels fused, blood loss, and operating time. All children followed a standard ERAS protocol with methadone being the only change in the post-operative regimen. In-hospital data for opioid and non-opioid medication use, surgical, and patient variables were recorded and compared between cohorts. RESULTS: Twenty-six patients received methadone (average 15.1 ± 1.9 years) and were matched with 52 control patients without methadone (average 14.7 ± 2.2 years). There were no significant differences in total opioid usage at any time-interval prior to hospital discharge or in cumulative opioid usage. Additionally, patients had a similar VAS pain level at discharge (methadone: 4.0 ± 2.3 vs control: 3.8 ± 1.9; P = 0.572). Total opioid usage was correlated with LOS. There were no opioid-related medication complications in either cohort. CONCLUSION: There was no decrease of in-hospital opioid usage when methadone was used with an ERAS protocol. Total opioid usage is correlated with hospital LOS following PSF.

Magnetic Resonance Imaging of Pectoralis Major Injuries in an Active Duty Military Cohort: Mechanism Affects Tear Location.

BACKGROUND: Pectoralis major (PM) tendon tears are common injuries in athletic patient populations, where operative repair is largely recommended for maximum functional recovery. The repair varies in difficulty and technique based on the location of the tear within the muscle-tendon unit. Magnetic resonance imagining (MRI) has been reported to be sensitive and specific for identifying the tear location, but the effect of injury mechanism on tear pattern has not been previously investigated. PURPOSE: To examine PM tears in a military patient population and assess the effect of injury mechanism (weightlifting vs high-energy trauma) on the tear pattern and accuracy of MRI interpretation. STUDY DESIGN: Cohort study; Level of evidence, 3. METHODS: Active duty military servicemembers undergoing operative repair of PM tendon tears with corresponding preoperative MRIs from 2 medical centers were identified. Two musculoskeletal fellowship-trained radiologists reviewed imaging studies, reporting the location of the tear within the muscle-tendon unit and the severity of the tear (sternal head vs clavicular head vs both). Radiographic findings were compared against intraoperative findings. Mechanism of injury and timing from injury to imaging and surgery were assessed to determine whether they affected the accuracy of MRI interpretations. RESULTS: A total of 72 patients were included (mean ± SD age, 33.7 ± 7.0 years; 100% male). Mechanisms of injury consisted of 46 weightlifting injuries and 26 high-energy injuries. Interrater reliability was poor for tear location (kappa, 0.162; P = .003) but substantial for extent of tear (kappa, 0.637; P < .0001). MRI had a 51.3% sensitivity and 63.6% specificity for identifying complete tears. MRI had a sensitivity of 73.9% and specificity of 72.2% for avulsion injuries and sensitivity of 75% and specificity of 79.3% for musculotendinous injuries. Mechanism of injury had no effect on extent of the tear but did affect the location of the tear, with a higher rate of avulsion injuries in the high-energy mechanism cohort (81% vs 40%; P = .02). CONCLUSION: The mechanism of injury was found to significantly affect the location of tendon tears. A higher rate of avulsion injuries was found in high-energy injuries than weightlifting injuries. MRI appeared to be less sensitive and specific than previous reports for traumatic PM tendon injuries.

Guided growth for the Treatment of Infantile Blount's disease: Is it a viable option?

INTRODUCTION: Guided growth with temporary hemiepiphysiodesis has gained interest as a less invasive means for the treatment of coronal plane lower extremity deformities as well as leg length discrepancies. Its application to infantile Blount's disease has been less reported. The object of this study was to identify predictive factors of guided growth for treatment of infantile Blount's. METHODS: A retrospective review was performed of children undergoing guided growth for the treatment of infantile Blount's disease over an eight-year period. Inclusion criteria included treatment with THE for infantile Blount's disease. Clinical information, preoperative Langenskiold classification, and intra-operative and post-operative data. Preoperative variables were used to identify risk factors for speed of correction and the need for subsequent surgery. RESULTS: A total of 11 patients, 17 extremities, meeting inclusionary criteria. Preoperatively, 7 extremities were classified as Langenskiold stage ≥3, with 12 being classified as stage ≤2. Overall, the Drennan's angle improved from 18.3° to 0.3° by final follow-up at an average of 4.31 years. Eight extremities demonstrated deformity recurrence/persistence (stage ≤2:33% vs stage ≥3: 100%), requiring 24 reoperations. Children with Langenskiold stage ≥3 demonstrated a significantly higher rate of reoperation. CONCLUSION: Guided growth is a viable treatment option for Infantile Blount's disease presenting with Langenskiold stage ≤2 disease at treatment initiation. The treatment course can expect a 33% rate of recurrent deformity, treated successfully with repeat THE. No child stage ≤2 required corrective osteotomy. Caution should be used when considering guided growth for children presenting with Langenskiold stage ≥3.

Use of electrocautery does not diminish the transmission rate of Cutibacterium acnes compared to a scalpel blade.

Many methods are used during shoulder surgery to prevent wound contamination with Cutibacterium acnes, but there are no accepted standards for prevention. Some surgeons use an electrosurgical instrument instead of a scalpel blade during open shoulder surgery in an effort to prevent deep tissue contamination with C. acnes. We sought to compare the transference rate of C. acnes between a scalpel blade at room temperature and an electrosurgical blade heated to 41°C (temperature of electrosurgical blade after standard deltopectoral approach). In our model, using a scalpel blade versus a heated electrosurgical blade resulted in no difference in pathogen transference.