Journal of the American Academy of Orthopaedic Surgeons Global Research and Reviews最新文献

Congenital pseudarthrosis of the clavicle remains remarkably rare, and the pathogenesis is unclear, but orthopaedic surgeons should be prepared to make this diagnosis and confident in the outcomes of open reduction and internal fixation with grafting. A 15-year-old female softball player presented with anterior shoulder pain during softball activities, with no precipitating trauma. She was diagnosed with congenital pseudarthrosis of the clavicle and initially treated conservatively. Following no improvement with physical therapy, home therapy, rest, and anti-inflammatory drugs, she was treated with open reduction and internal fixation of the clavicle with iliac crest autograft and demineralized bone matrix allograft.

Introduction: The purpose of this study was to determine the degree of disability that geriatric patients with sacral U-type fractures experience.

Methods: Patients older than 65 years presenting from 2013 to 2019 with a U-type sacral fracture were included. Patient demographics, treatment type, preinjury domicile, preinjury use of assistive devices, and neurologic deficits were recorded. Outcomes included mortality, return to preinjury domicile, and use of assistive devices for mobility.

Results: Among 46 patients in the treatment period, ground-level fall was the most common mechanism of injury (60.8%). Thirty-four patients (74%) were treated surgically, most commonly with closed percutaneous fixation (n = 27). Thirteen percent of patients died during the admission. At the final follow-up, 14 (45%) had not returned to their prior domicile and 18 (58%) required more supportive assistive devices. Seventy-three percent of patients who presented delayed required a new gait aid, compared with 47% presenting acutely. Between those presenting with low-energy versus high-energy mechanisms, similar rates of need were observed for new assistive devices (50% low and 73% high) and lack of return to preinjury domicile (40% low, 50% high).

Discussion: Many geriatric patients were disabled by or died after sustaining a sacral U-type fracture, highlighting the morbidity regardless of high-energy or low-energy trauma.

Introduction: This meta-analysis aimed to evaluate the efficacy and safety of the supercapsular percutaneously assisted total hip arthroplasty (SuperPATH) and the standard posterior approach in hip arthroplasty in treating femoral neck fractures in elderly patients.

Method: A systematic search was conducted for studies from 2012 to December 2022. Meta-analysis was conducted using Review Manager 5.3 on surgical time, intraoperative blood loss, Harris hip scores, and visual analog scale scores.

Result: A total of 26 studies involving 2,236 patients with femoral neck fractures were included. The SuperPATH group performed better than traditional posterior approach group in reducing intraoperative blood loss (in ml), shortening incision length (in cm), length of hospitalization period (in days) and improving Harris Hip score (HHS). The operation time took longer than the traditional posterior approach, with statistically significant differences. The VAS scores at 1 week and 3 months after surgery in the SuperPATH group were lower than those of the traditional posterior approach, with statistically significant differences. There was no statistical significance between the two groups in VAS scores 2 weeks and 1 month after surgery.

Conclusion: The SuperPATH group resulted in better effects in reducing intraoperative blood loss (in ml), shortening incision length (in cm), length of hospitalization period (in days), and improving Harris hip score (HHS), which is conducive to the rapid postoperative recovery of patients.

Background: Atopic dermatitis (AD), also known as eczema, is a highly prevalent, chronic inflammatory skin condition. The perioperative outcomes of patients with AD after total knee arthroplasty (TKA) have not been characterized.

Methods: Adult patients who underwent TKA were identified in the PearlDiver administrative database. After matching based on patient characteristics, 90-day adverse events and 5-year revisions were compared by multivariable analyses and log-rank tests, respectively. Patients with atopic dermatitis were then stratified by medication status for repeated analysis between resultant subcohorts.

Results: Relative to age, sex, and comorbidity matched patients without AD, those with AD had increased odds of aggregated adverse events (OR = 1.36), pneumonia (OR = 2.07), urinary tract infection (UTI, OR = 1.77), and emergency department (ED) visits (OR = 1.70) (P < 0.0001 for each). Those on medication for moderate-to-severe disease had similar associations as the primary analysis. Those not on medications were similar, but not found to have elevated odds of pneumonia. 5-year revisions were not markedly different.

Conclusion: TKA patients with AD were at increased odds of pneumonia, UTI, and ED visits, but these risks were not exacerbated by immunosuppressive medications. Surgeons who are managing patients with AD for TKA should be vigilant but reassured by overall similar 5-year survival to revision.

Introduction: With increasing healthcare costs, it is important to quantify the number of total knee arthroplasty (TKA) patients who have MRIs that are not considered clinically necessary. The purpose of this study was to determine the number of unnecessary preconsultation MRIs done among TKA patients at our institution.

Methods: Eight hundred and sixty-nine patients who underwent a primary TKA were identified. Review of medical records and imaging results was conducted to determine which patients had received preconsult MRIs and whether they were necessary or unnecessary.

Results: Of the 869 TKA, 177 (20.4%) presented with a preconsultation MRI, of which, 112 met the study inclusion criteria. Of the 112 MRIs, 18 (20.7%) were done without radiographic imaging, and 69 (79.3%) were completed after radiographically evident moderate-to-severe arthritis. Overall, 87 MRIs (10.0%) were deemed clinically unnecessary.

Conclusions: Referring physicians are overusing MRIs before consultation with an orthopaedic surgeon. The 87 patients who had unnecessary MRIs at our institution over a one-year period represented a cost of $20,706. Extrapolating that number to the scale of patients affected by arthritis each year is potentially a staggering amount of money. Evidence-based guidelines should be put into place to optimize healthcare utilization.

Introduction: Adjunctive suture augmentation of patellar plate fixation has yet to be investigated. Our biomechanical study sought to evaluate whether suture augmentation improves dorsal patellar locking plate fixation. Our hypothesis was that suture augmentation would improve fixation of this construct.

Methods: A transverse patella fracture in six matched cadaveric pairs was stabilized using a patellar locking plate with or without suture augmentation. Specimens were tested at 60° knee flexion with load placed through quadriceps. Cyclic loading followed by load to failure was done. Stiffness, deformation at peak, and nonrecoverable deformation were calculated.

Results: During cyclic loading, suture augmentation demonstrated a higher average stiffness throughout all loads. At the final cycle, deformation was markedly higher without suture augmentation. Average load to failure was higher with suture augmentation. Maximum load to failure occurred at 2500 N in both groups.

Conclusion: Suture augmentation in a transverse patellar fracture model improved dorsal plate fixation, leading to less fracture displacement at the final load. Although suture augmentation demonstrated higher stiffness and lower deformation, these trends were not statistically significant. In both groups, plate fixation sustained very high loads, which reflects the fixation strength of the dorsal locking plate and screw construct in this fracture model.

Introduction: Bone and joint tumors are the third most common cause of pediatric cancer-related deaths in the United States. Although there have been improvements in survival rates among pediatric cancer patients over the past few decades, bone and joint cancers remain the exception. Considering current clinical trials involving novel targeted therapies, the establishment of updated mortality rates and predictors of survival for this cancer would be prudent. This investigation sought to determine updated 5-year survival rates and predictors of survival among pediatric Ewing sarcoma (ES) of bone treated within the United States.

Methods: The National Cancer Database was retrospectively inquired for all pediatric ES cases within the most updated bone and joint public use file available in September 2022. The reported data were truncated to only include patients with reported 5-year vital (ie, survival) status. Cox proportional hazard regression was conducted on both the truncated data and the entire cohort to validate the findings. The patients were then separated into alive versus deceased cohorts, and univariate regression analysis was done followed by multivariable regression of notable variables of interest.

Results: Overall, an aggregated 5-year survival rate of 74.5% was found in the included patient cohort. Patients with localized cancer had a comparatively improved 5-year survival rate of 84.70% as opposed to those with macrometastatic disease on presentation with a survival rate of 50.4%. Patient demographic-, tumor-, and treatment-specific variables all demonstrated an effect on survival. The multivariable predictors of worse mortality were found to include older age, larger tumor size (>8 cm), macrometastatic disease on presentation, and positive surgical margins.

Conclusion: This analysis serves to establish updated survival rates of pediatric ES treated within the United States to set standards for comparison among future studies. Continued multi-institutional and international collaboration is needed to optimize current treatment results and develop novel targeted therapies.

Background: Posttraumatic osteoarthritis is a common indication for total knee arthroplasty (TKA). The purpose of this study was to evaluate the association between a history of patella fracture and postoperative complication rates after TKA.

Methods: Patients diagnosed with a patella fracture before undergoing TKA were identified from a large national database and matched to a control cohort using propensity scoring. Rates of medical complications occurring within 90 days of TKA and surgery-related complications occurring within 1 year of TKA were compared using odds ratios. Healthcare utilization outcomes including 90-day emergency department (ED) presentation, hospital readmission, and total cost were also compared.

Results: Compared with a propensity-matched control cohort, TKA patients with a history of patella fracture had a lower incidence of pulmonary embolism (OR 0.74, P = 0.0442) and higher incidences of periprosthetic joint infection (OR 1.68, P < 0.0001), revision surgery (OR 1.84, P < 0.0001), dislocation (OR 1.61, P = 0.026), lysis of adhesions (OR 2.21, P = 0.0082), and wound disruption (OR 1.52, P < 0.0001). A history of patella fracture was also associated with an increased rate of ED presentation (OR 1.08, P = 0.0454) and increased total cost ($14,359 vs. $12,786, P = 0.0003).

Conclusion: A history of patella fracture is associated with early surgery-related complications after TKA including periprosthetic joint infection, revision surgery, dislocation, lysis of adhesions, and wound disruption. Healthcare utilization is increased among these patients with higher rates of ED presentation and increased total cost. These findings allow for more accurate risk stratification and counseling of patients.

Level of evidence: III, Retrospective review.

Introduction: This study assesses the accessibility and nature of parental leave policies during orthopaedic surgery residency training after implementation of the Accreditation Council for Graduate Medical Education (GME) mandate for 6 weeks of paid parental leave effective July of 2022.

Materials and methods: An audit of orthopaedic surgery residency and affiliated GME websites was conducted to assess the accessibility of parental leave policies during the 2023-2024 academic year. Details on length of leave and nature of renumeration during the leave were recorded. Bivariate analyses were conducted to determine residency program characteristics associated with the accessibility of a parental leave policy. Results were compared with a previous analysis during the 2017-2018 academic year.

Results: A total of 200 residency programs were evaluated, and 152 had parental leave policies (76.0%). Compared with 2017 to 2018, a similar percentage of parental leave policies were accessible on residency program websites (3.0% vs. 2.0%, P = 0.777) but fewer were accessible on GME websites (55.5% vs. 80.7%, P < 0.001). More contemporary policies were obtained from program coordinators (18.5% vs. 7.2%, P = 0.003), and more were not available (24.0% vs. 9.0%, P < 0.001). Most policies offered renumeration (86.7%) and leave for 6 weeks in length (75.0%). A higher prevalence of parental leave policy accessibility was found among orthopaedic residency programs with university affiliation (P < 0.001), more faculty members (P = 0.008) and residents (P = 0.017), a higher percentage of female faculty (P = 0.008), affiliation with a top 50 ranked National Institutes of Health-funded orthopaedic surgery department, and accreditation achieved before 2017 to 2018 (P = 0.004).

Discussion: Most orthopaedic surgery residency programs do not have accessible parental leave policies on their websites. The new Accreditation Council for GME mandate will require orthopaedic residency programs to provide residents with 6 weeks of paid parental leave during residency training. Accessible policies may be useful to applicants interested in child rearing during orthopaedic residency training.