JBJS Reviews最新文献

Background: Cauda equina syndrome (CES) is a rare but life-altering disease resulting from compression of the nerve roots at the spinal cord's terminus. CES typically presents with low back pain, sciatica, sensorimotor deficits, and bowel and bladder dysfunction. Owing to its rarity, the condition is often missed, leading to significant morbidity and potential legal implications for physicians.

Methods: This review synthesizes the current literature on CES, including its epidemiology, pathophysiology, classifications, and management strategies. Emphasis is placed on the diagnosis and treatment of CES as well as the legal implications of CES for spine surgeons.

Results: The literature reveals variability in the reported prevalence of CES, with incidence rates ranging from 0.34 to 7 per 100,000 individuals annually. The timing of decompression remains debated. Some studies report no significant difference in outcomes between decompression within 24 hours vs. 48 hours, while others emphasize the importance of immediate intervention. Legal cases related to CES frequently involve delayed diagnosis, with significant ramifications for physicians.

Conclusions: Surgical decompression remains the definitive treatment of CES, though the timing of surgery requires careful consideration to balance the urgency of intervention with the risks of complications. Further research is needed to explore strategies that would allow for improvement in identifying and treating patients with CES in a timely manner.

Level of evidence: Level V. See Instructions for Authors for a complete description of levels of evidence.

Background: Since its inception, activity level and bone quality have been essential considerations for patients undergoing hip resurfacing arthroplasty (HRA). Moreover, younger patients tend to experience fewer complications, lower revision rates, and better outcomes after any surgery. This study aims to compare the clinical outcomes, complication rates, and survivorship rates between younger and older patients undergoing HRA, providing insights into whether active older patients with appropriate bone quality can still achieve significant benefits from HRA.

Methods: A literature search was conducted using PubMed, Embase, and Scopus databases. Articles were screened by title and abstract, followed by full-text review. A meta-analysis was performed using a random effects model to compare UCLA scores and odds of prosthesis survivorship between younger (<50 years of age) and older (>50 years of age) patients in studies comparing both age groups. Statistical significance was defined as a 95% confidence interval that does not include 1. In addition, the average complication and prosthesis survivorship rates were calculated and compared between younger and older hips using both comparative and noncomparative studies.

Results: From an initial pool of 1,286 articles, 31 met inclusion criteria, encompassing 22,691 patients. Analysis revealed a pooled mean age of 33.65 years for the younger cohort and 63 years for the older cohort, and a complication rate of 5.37% in younger compared with 3.83% in older hips. The difference in postoperative UCLA scores was deemed statistically insignificant based on meta-analysis. However, the difference in mean survivorship rates was found to be statistically significant at 86% for younger and 94.9% for older patients through univariate analysis and meta-analysis.

Conclusion: There is no significant difference in postoperative outcomes between younger and older patients undergoing HRA. In fact, older patients seem to experience higher prosthesis survivorship rates compared with younger cohorts. Older patients who are active and possess good bone quality can achieve outcomes comparable to their younger counterparts, indicating that HRA may be viable for a broader age range than previously considered.

Level of evidence: Level III, systematic review of Level II, III, and IV studies. See Instructions for Authors for a complete description of levels of evidence.

» Ossification of the posterior longitudinal ligament (OPLL) is a hyperostotic condition that results in ectopic bone formation and calcification of the posterior longitudinal ligament.» OPLL can present in any race/ethnicity but historically has been reported in the East Asian population.» OPLL predisposes patients to spinal cord injury in the setting of minor trauma.» Asymptomatic patients typically can be managed nonoperatively. Surgical treatment is reserved for patients presenting with myelopathy and worsening radiculopathy that has not responded to conservative treatment.» The decision to use anterior, posterior, or combined anterior-posterior approaches should be an individualized decision that considers the degree of OPLL pathology, K-line imaging findings, and other patient-specific risk factors.

» Although spine surgery is effective in reducing pain and improving functional status, it is associated with unacceptably high rates of complications, thus necessitating comprehensive preoperative patient optimization.» Numerous risk factors that can impact long-term surgical outcomes have been identified, including malnutrition, cardiovascular disease, osteoporosis, substance use, and more.» Preoperative screening and personalized, evidence-based interventions to manage medical comorbidities and optimize medications can enhance clinical outcomes and improve patient satisfaction following spine surgery.» Multidisciplinary team-based approaches, such as enhanced recovery after surgery protocols and multidisciplinary conferences, can further facilitate coordinated care from across specialties and reduce overall hospital length of stay.

Background: Reverse shoulder arthroplasty (RSA) is increasingly used in the treatment of proximal humerus fractures (PHFs) with reliable clinical improvement. Lateralized RSA implants have conferred superior outcomes compared with the original Grammont design in patients with nontraumatic indications. However, in the setting of a PHF, lateralized components can place increased tension across the tuberosity fracture site and potentially compromise tuberosity healing and outcomes. This systematic review and meta-analysis sought to determine the effect of implant design on clinical outcomes after RSA for PHFs.

Methods: A systematic review was performed per Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. PubMed/MEDLINE, EMBASE, Web of Science, and Cochrane were queried for clinical studies on RSA performed for PHFs that reported implant manufacturer details. Our primary outcomes included postoperative external rotation (ER), forward elevation (FE), abduction, Constant score, rate of greater tuberosity (GT) healing, and the incidence of complications compared between medialized vs. lateralized global implant design.

Results: Globally lateralized RSA cohorts (478 RSAs total with cumulative lateral offset achieved through humeral or glenoid lateralization or both humeral and glenoid lateralization) were found to have a greater mean postoperative Constant score compared with globally medialized (medialized glenoid and medialized humerus) RSA cohorts with 1,494 total medialized RSAs (66 vs. 59, p = 0.006), but there was no significant difference regarding mean postoperative ER (30° vs. 22°, p = 0.078), FE (117° vs. 119°, p = 0.708), or abduction (103° vs. 107°, p = 0.377). On meta-regression, neither implant design nor tuberosity status significantly influenced postoperative ER, FE, abduction, or Constant score on meta-regression independent of mean follow-up and age at surgery. The rate of GT healing was greater in lateralized compared with medialized RSAs (88% vs. 72%, p < 0.001). On meta-regression, medialized RSA design was associated with a 73% lower odds of GT healing (odds ratio = 0.27, 95% confidence interval = 0.11-0.68, p = 0.007) independent of mean follow-up and age at surgery.

Conclusion: Lateralized RSA implants conferred no significant functional benefit over medialized implants when used in patients with PHFs.

Level of evidence: Therapeutic Level IV. See Instructions for Authors for a complete description of levels of evidence.

» Lumbar spine pathology is a known cause of referred pain to the lower extremities and should be investigated as a possible source of knee pain, especially with patients in their sixth decade.» While primary knee pathology is common, spinal pathology should always be considered in older patients presenting with knee pain, especially in atraumatic cases where knee imaging does not correlate with complaints or examination findings.» Lumbar (L) 3-4 pathology is most commonly affected in referred knee pain, with the 2 most common pathologies being spinal stenosis and disc herniation.» If knee radiographs do not demonstrate major pathology that correlates with a patient's history and examination, a thorough spine examination should then be performed with attention paid to patellar tendon reflex, quadriceps muscle strength, and any loss of sensation, as these can be hallmarks of L3-4 pathology.

» Anemia is a common comorbidity in orthopaedic trauma patients with important clinical consequences, significantly negatively affecting a patient's course following orthopaedic trauma.» Anemia remains relatively understudied in the orthopaedic trauma population with a large amount of current literature focused solely on geriatric hip fracture patients.» Greater investigation into alternatives to blood transfusions such as iron therapy or cell salvaging for treatment of anemia in the orthopaedic trauma population is needed.

» Increased professional, personal, and emotional stress can have compounding negative effects on physicians, which can be detrimental to teamwork dynamics, workplace environment, productivity, and personal well-being. Orthopaedic surgery, in particular, is a medical specialty that demonstrates high workplace demands, elevated rates of burnout, and low workplace diversity.» Professional coaching can help combat these challenges and facilitate professional success by providing an outlet for discussion and planning toward one's career development and goals. Coaches, generally nonphysicians, are trained and certified to advise and guide physicians in their professional career paths.» There has been demonstrated success in the utilization of professional coaching in various medical specialties and groups, including anesthesiology, primary care, general surgery, and female surgeon organizations.» The purpose of this review is to evaluate existing models of professional coaching to inform its use within orthopaedic surgery as a means of promoting well-being, physician success, and workforce diversity.

» Patients with diabetes mellitus (DM) undergoing shoulder arthroplasty (SA) have a unique risk profile, which must be considered by clinicians.» The presence of DM as a comorbidity is associated with longer length of stay following SA, greater likelihood of nonhome discharge, and a higher rate of 90-day readmission.» Though the incidence is low, patients with DM are at an increased risk of serious postoperative cardiovascular complications, such as pulmonary embolism, venous thromboembolism, and myocardial infarction.» DM has generally been associated with increased risk of postoperative infection. The optimal hemoglobin A1c threshold in patients undergoing SA remains inconclusive. When extrapolating from lower limb arthroplasty, the literature indicates that this threshold is most likely in the range of 7.5% to 8%.» Patients with DM are more likely to require revision surgery after SA and report lower postoperative satisfaction.

Background: Iliopsoas injuries are a common cause of anterior hip and groin pain and can be successfully managed with conservative treatment. Corticosteroid and local anesthetic injections can also be offered in conjunction with nonoperative management. Given the variability in reported injection guidelines, composition, and techniques, the purpose of this study was to systematically review the literature to assess progression to surgery and patient outcomes following iliopsoas injections.

Methods: Four online databases (PubMed, Cochrane Library, MEDLINE, and Scopus) were searched for studies investigating the outcomes of iliopsoas injections from database inception until January 2024 in accordance with the Preferred Reporting Items for Systematic Meta-Analyses guidelines. Three reviewers screened titles, abstracts, and full-text articles independently and in duplicate. Recorded data included demographic data, patient-reported outcomes, complications, injection traits, and progression to surgery.

Results: Six articles were included in the review (follow-up time = 28.6 months). These studies included patients with iliopsoas bursitis, tendinopathy, and snapping hip. Five studies used the iliopsoas bursa as the injection target. All studies used local anesthetics in their injection formulations, with 5 also adding a corticosteroid. In 3 studies, the Numeric Rating Scale improved from preinjection (mean = 7.33) to postinjection (mean = 2.47). Three studies demonstrated an improvement in Harris Hip Score from a mean of 58.49 preinjection to 89.91 postinjection. Following injections, 28.9% (68/235) of patients progressed to surgery, with psoas tenotomy (38.3%, 26/68) being the most common procedure. There were no complications reported in all of the included studies.

Conclusion: This study demonstrates that iliopsoas injections are a clinically effective treatment of a variety of pathologies, including bursitis, tendinopathy, and snapping hip, and have a low rate of complications. Physicians should consider using iliopsoas injections in patients whose symptoms are refractory to conservative management, including physical therapy.

Level of evidence: Level III. See Instructions for Authors for a complete description of levels of evidence.