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

Background: Total shoulder arthroplasty (TSA) is commonly done for degenerative conditions. Patients may need additional contralateral TSA or ipsilateral revision TSA. As a marker of patient satisfaction and practice integrity, factors associated with return to the same or different surgeon are of interest.

Methods: Patients undergoing TSA were abstracted from the PearlDiver data set. Subsequent TSA within 2 years was identified. Factors analyzed included age, sex, comorbidity burden, prior depression diagnosis, insurance type, reverse versus anatomic TSA, ipsilateral versus contralateral surgery, and postoperative adverse events. Patients returning to the same surgeon versus different surgeon were compared with multivariable analysis.

Results: 98,048 TSA patients were identified, with 8483 patients (8.7%) undergoing subsequent TSA within 2 years. Of those, 1,237 (14.6%) chose a different surgeon. Factors associated with changing surgeons were revision surgery on the ipsilateral shoulder (OR:2.47), Medicaid insurance (OR:1.46), female sex (OR:1.36), any adverse events (OR:1.23), and higher Elixhauser Comorbidity Index (OR:1.07 per point), while prior depression diagnosis was associated with decreased odds (OR:0.74) of changing surgeon (P < 0.05 for all).

Discussion: When pursuing a subsequent TSA, only a minority of patients changed to a different surgeon. Factors identified associated with changing to a different surgeon may help guide measures to improve patient satisfaction and practice integrity.

Introduction: Cubitus varus deformity is primarily a cosmetic complaint that causes some early and late complications. However, no studies have reported the cubitus varus deformity regarding the frequency of complications, relationship to the degree of deformity, and period from the occurrence of the initial injury.

Methods: Overall, 83 patients with cubitus varus deformity were examined. The differences in the humerus-elbow-wrist angle (∆HEW-A), tilting angle (∆TA), and internal rotation angle (∆IRA) between the affected and normal sides were measured to determine varus and extension and internal rotation deformity. The period from the occurrence of the initial injury to the evaluation date was also investigated. Multivariate logistic regression analysis was conducted to identify the explanatory variables (period, ∆HEW-A, ∆TA, and ∆IRA) independently associated with complication events. Receiver-operating characteristic curve analysis was also conducted to predict the risk of events.

Results: ∆HEW-A was independently associated with the risk of cosmetic complaint (odds ratio [OR], 1.171; 95% confidence interval [95% CI], 1.056 to 1.336) and instability (OR, 1.111; 95% CI, 1.028 to 1.200). ∆TA was independently associated with the risk of limited elbow motion (OR, 1.176; 95% CI, 1.077 to 1.285) and sports disability (OR, 0.892; 95% CI, 0.836 to 0.952). The period from the occurrence of the initial injury was independently associated with risk of pain (OR, 1.063; 95% CI, 1.019 to 1.108), ulnar nerve neuropathy (OR, 1.065; 95% CI, 1.011 to 1.125), and osteoarthritis (OR, 1.188; 95% CI, 1.098 to 1.286). The receiver-operating characteristic curve analysis revealed the optimal cutoffs of 20° and 27° for ∆HEW-A to predict cosmetic complaint and instability; of 25° for ∆TA to predict limited elbow motion; and of 8.8, 8.0, and 16.0 years for the period to predict pain, ulnar nerve neuropathy, and osteoarthritis, respectively.

Discussion: The treatment of cubitus varus deformity should be determined because a residual deformity >20° of varus and 25° of extension could develop risk of complications over time.

Introduction: Staged treatment of high-energy periarticular tibia fractures involves temporization with closed reduction and external fixation, aiming to provide early reduction and stabilization while mitigating soft-tissue complications. Various external fixator configurations exist, including those that use a "multipin" clamp capable of holding multiple pins but limiting pin placement to a single plane. The purpose of this study was to compare clinical and radiographic outcomes and associated costs of standard and multipin outrigger clamp constructs in tibial plateau and pilon fractures treated with temporary external fixation. We hypothesized that use of the multipin clamp may be associated with poorly aligned reductions and increased complication rates.

Methods: A retrospective review of 100 patients with periarticular tibial plateau (AO/OTA: 41B/C) or pilon (43B/C) fracture at a Level 1 trauma center from 2014 to 2023 was conducted. Patient, injury, and complication characteristics were collected. Patients were categorized based on the external fixator clamp used: multipin (MP) or standard (S). Clinical outcomes and complication rates were assessed. Radiographic alignment was evaluated by the change in anterior and lateral distal tibial angles, and sagittal plane translation for pilon fractures, and medial and posterior proximal tibial angles for plateau fractures.

Results: 70 patients underwent standard (25 pilon, 45 plateau) and 30 multipin (10 pilon, 20 plateau) external fixation. MP and S groups showed no notable differences in demographics or injury characteristics. Both groups demonstrated comparable complication rates and radiological alignment outcomes, with no notable differences observed. MP constructs were more costly than standard systems.

Conclusion: In this retrospective study of 100 patients, there was no difference in radiographic or clinical outcomes between the standard frame and multipin frame groups. Typical costs for the multipin frame constructs were $635 to $1249 more than the standard frame constructs.

Introduction: Patients within the US Veterans Health Administration (VA) system have higher rates of comorbidities and chronic pain, increasing risks of complications/poor outcomes following spine surgery. Although the use of bone morphogenetic protein 2 (BMP-2) is established for anterior lumbar interbody fusion, its indications for off-label use in posterolateral fusion are unclear. The objective of this study was to evaluate safety and utility of BMP-2 in posterolateral fusion through a 15-year experience at the VA.

Methods: Patients underwent posterolateral lumbosacral fusions with BMP-2 by a single VA surgeon from January 1, 2005, to January 1, 2020. The primary outcome was fusion assessed through postoperative radiographs. Secondary outcomes included adjacent segment disease (ASD) and postoperative pain clinic utilization.

Results: Sixty-eight patients underwent lumbosacral posterolateral fusion with BMP-2; 77.9% were discharged home and had no postoperative complications. All patients achieved bony fusion at a mean of 113.3 ± 59.9 days postoperatively. Five patients were diagnosed with cancer postoperatively, and eight patients required revision for ASD. No notable predictors of ASD exist. Preoperative opioid use predicted postoperative pain clinic utilization.

Discussion: Posterolateral lumbar fusion with BMP-2 in veterans yields high fusion rates and favorable complication profiles and should be considered in multimorbid hosts.

Study design: Retrospective review of prospectively collected data.

Background: Behcet syndrome (BS), a multisystem autoimmune disorder, has unclear effects on outcomes after total hip arthroplasty (THA) and total knee arthroplasty (TKA). This study assessed the relative risk of perioperative adverse events in patients with BS.

Methods: This retrospective cohort study used the PearlDiver M157Ortho data set, a large national administrative database. Total hip arthroplasty and TKA patients with BS were identified and matched 1:4 to those without BS based on patient age, sex, Elixhauser Comorbidity Index scores, and procedure performed (THA or TKA). The incidence of 90-day adverse events was determined and compared by multivariate analysis. 5-year survival to revision surgeries was assessed and compared with the log-rank test.

Results: After matching, 282 THA/TKA patients with BS were identified and compared with 1127 without BS. On multivariate analysis, patients with BS were at independently greater risk of aggregated any (odds ratio [OR] 2.16, P < 0.0001), serious (OR 1.78, P = 0.0051), and minor (OR 2.39, P < 0.0001) adverse events compared with those without BS. No significant difference was observed in 5-year survival to revision surgery (P = 0.3).

Conclusions: Patients with BS undergoing THA or TKA experienced markedly greater 90-day postoperative adverse events. The findings underscore the need for optimized perioperative management for patients with BS undergoing arthroplasty.

Patellar dislocations commonly occur in young adults and often reduce spontaneously or with closed reduction in the emergency department. However, traumatic patellar dislocations in older adults pose unique challenges, often complicated by degenerative osteophytes that hinder standard closed reduction methods. When closed reduction proves ineffective, patients may necessitate arthroscopic or open surgical intervention. This case report details the experience of a 60-year-old man with a traumatic patellar dislocation resistant to standard closed reduction methods, attributed to impaction of the patella against a lateral femoral condyle osteophyte. We present a novel technique for addressing irreducible patellar dislocations through closed reduction, which has yet to be documented in existing literature.

Introduction: This study aimed to (1) compare patient-reported outcome measures between patients who underwent medial meniscus root tear (MMRT) repair and those who underwent other types of medial meniscus repair, and (2) identify factors associated with observed differences.

Methods: A literature search identified studies reporting PROMs-knee injury and osteoarthritis outcome score (KOOS) or visual analog scale (VAS) for pain-after repair of the medial meniscus. Studies were excluded if outcomes were not separated by tear type or reported graphically, different or no outcomes reported, no repair or repair with a sutureless method, follow-up greater than 72 months, case report, and systematic review. Patient-reported outcome measures and demographics were summarized as sample-weighted means and compared using t-tests. Mixed model linear regressions were fit predicting postoperative PROMs adjusted for tear type, preoperative PROMs, and follow-up time. F statistics of type III tests of fixed effects were compared.

Results: Eighteen articles were included, n = 10 received MMRT repair and n = 8 other tear repairs. Postoperative values for all KOOS scores were less for the MMRT repair group compared with the other tear repair group, VAS pain was not statistically different. Tear type was a stronger predictor for postoperative PROMs than the preoperative score and duration of follow-up for all KOOS scores, but not VAS pain. On average, the MMRT repair group had shorter follow-up, more women, older age, and greater BMI.

Discussion: All postoperative PROMs except for VAS pain were worse for patients who underwent MMRT repair compared with patients who underwent other types of medial meniscus repair. Tear type was a better predictor of postoperative PROMs despite intergroup differences in preoperative PROMs and duration of follow-up. Relative risk factors for MMRT compared with other types of medial meniscus tears include older age, greater BMI, and female sex.

Introduction: In this study, we reviewed proximal humeral fractures surgically treated with open reduction and internal fixation (ORIF) to test the null hypothesis that there is no association between fracture characteristics and surgeon characteristics in outcomes after surgical management of displaced proximal humeral fractures with ORIF.

Methods: A retrospective review of surgically treated proximal humeral fractures was done at a tertiary-level hospital. The data were organized into two categories: fracture characteristics and surgeon characteristics.

Results: There were 314 proximal humeral fractures treated with ORIF. In total, there were 112 failures (36%). Bivariate Pearson correlations demonstrated that the number of proximal humerus fixation surgeries performed by an individual surgeon was associated with adequate calcar reduction (r = 0.995, P < 0.001) and greater tuberosity reduction (r = 0.994, P < 0.001). Years of experience was positively associated with adequate calcar reduction (r = 0.594, P = 0.012) and greater tuberosity reduction (r = 0.589, P = 0.013). Regression analysis of two surgeons versus the rest of the cohort demonstrated significantly lower failure rates (P = 0.001).

Discussion: Complex proximal humeral fractures (3-part and 4-part) have better calcar reduction and tuberosity reduction when treated by surgeons with greater volume of proximal humeral fracture surgery. Among surgeons with high volume, there may be individuals who have the unique ability to provide markedly better results.

A 64-year-old patient with stage IV non-small-cell lung carcinoma and several comorbidities, which include obesity and long-term smoking, was treated with N-allyl noroxymorphone eluting osteoinductive bone graft biomaterial. The patient had multilevel degenerative disk disease (DDD), which has a high rate of failure when osteoinductive bone grafts are not used. Infuse, the most widely administered osteoinductive bone graft, is contraindicated in the spine for patients with active tumor. As such, a novel drug eluting osteoinductive biomaterial was administered to this patient, for whom no other therapeutic options were available, to promote bone fusion in a three-level anterior cervical diskectomy and fusion as part of the Food and Drug Administration Expanded Access program. Despite patient comorbidities that are associated with poor bone physiology, confirmed radiographic fusion was achieved in all three cervical levels at 8 months.

Background: Geriatric hip fractures are common and important sentinel events regarding bone health. Although dual x-ray absorptiometry (DEXA) scans are a standard method for determining bone density, differences in use among various race/ethnic groups around the time of hip fracture may reveal disparities within the healthcare system.

Methods: The 2014 to 2016 Medicare Standard Analytic Files PearlDiver data set was used to identify geriatric patients sustaining hip fracture. From that cohort, those who had a DEXA scan before or after their fracture were defined. For the defined cohorts, patient age, sex, Elixhauser Comorbidity Index, race/ethnicity, and income (based on zip code) were defined and compared with univariate and multivariate analyses.

Results: Of 58,099 hip fracture patients, only 19.8% had had a DEXA scan before fracture and 3.9% of the remaining group had the DEXA scan after fracture. Of the hip fracture population, 91.0% identified as White and 9.0% as non-White (Native American, Black, Hispanic, Asian, or Other). Before hip fracture, controlling for other variables and compared with White patients, all non-White categories were at lesser odds of having had the DEXA scan. After hip fracture, Black, Hispanic, and other patients were also at lesser odds of having the DEXA scan.

Discussion: Using a large Medicare data set, controlling for patient age, sex, Elixhauser Comorbidity Index, and income marker, this study revealed disparities in DEXA scan utilization across race/ethnic groups before and after presenting with a hip fragility fracture. Identification of such disparities highlights the needs for improved medical access and care for this at-risk hip fracture population.