Socioeconomic differences in the utilization of diagnostic imaging and non-pharmaceutical conservative therapies for spinal diseases.

BACKGROUND: A different utilization of health care services due to socioeconomic status on the same health plan contradicts the principle of equal treatment. We investigated the presence and magnitude of socioeconomic differences in utilization of diagnostic imaging and non-pharmaceutical conservative therapies for patients with spinal diseases. METHODS: The cohort study based on routine healthcare data from Germany with 11.7 million patient-years between 2012 and 2016 for patients with physician-confirmed spinal diseases (ICD-10: M40-M54), occupation and age 20 to 64 years. A Poisson model estimated the effects of the socioeconomic status (school education, professional education and occupational position) for the risk ratio of receiving diagnostic imaging (radiography, computed tomography, magnetic resonance imaging) and non-pharmaceutical conservative therapies (physical therapy including exercise therapy, manual therapy and massage, spinal manipulative therapy, acupuncture). RESULTS: Patients received diagnostic imaging in 26%, physical therapy in 32%, spinal manipulative therapy in 25%, and acupuncture in 4% of all patient-years. Similar to previous survey-based studies higher rates of utilization were associated with higher socioeconomic status. These differences were most pronounced for manual therapy, exercise therapy, and magnetic resonance imaging. CONCLUSIONS: The observed differences in health care utilization were highly related to socioeconomic status. Socioeconomic differences were higher for more expensive health services. Further research is necessary to identify barriers to equitable access to health services and to take appropriate action to decrease existing social disparities.

Drug-induced Myopathies. / Arzneimittelinduzierte Myopathien.

Differential diagnosis of muscle pain and weakness is extensive, including neurological, vertebral, arthrogenic, vascular, traumatic, immunological, endocrine, genetic and infectious aetiologies, as well as medication or toxin-related causes. Muscles are highly sensitive to a large number of drugs, especially with high doses. Although many drug classes can cause toxic myopathy, a significant number of cases are caused by lipid-lowering drugs, long-term use of corticosteroids, and, most often, alcohol misuse. Some drug interactions, e.g. those that are metabolised via the enzyme CYP3A4, can increase the serum levels of the drugs and drug-induced toxicity. A careful history of patient's drug and alcohol consumption is therefore vital. Clinical symptoms depend on the drug, dosage and patient's sensitivity. They can vary from asymptomatic increase in serum levels of creatine kinase, mild myalgia and cramps to muscle weakness, rhabdomyolysis, kidney failure and even death. The pathogenesis is often only partially known and multifactorial. Toxic myopathy is often reversible once the drug is discontinued, alternative drug therapy is started or a different dosage regimen is chosen. Complications such as acute kidney failure must be avoided, and analgesic therapy may be indicated.

Biological Reconstruction of Localized Full-Thickness Cartilage Defects of the Knee: A Systematic Review of Level 1 Studies with a Minimum Follow-Up of 5 Years.

OBJECTIVE: The objective of this study was to evaluate the best available mid- to long-term evidence of surgical procedures for the treatment of localized full-thickness cartilage defects of the knee. DESIGN: Systematic review using Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines of Level 1 randomized clinical trials (RCTs), meta-analyses of RCTs and systematic reviews with a minimum follow-up of 5 years. Data extracted included patient demographics, defect characteristics, clinical and radiological outcomes, as well as treatment failures. RESULTS: Six RCTs and 3 Level 1 systematic reviews were included. Two RCTs compared microfracture (MFx) to periosteum-covered autologous chondrocyte implantation (ACI-P), 1 to matrix-associated ACI (M-ACI) and 2 to osteochondral autograft transplantation (OAT). One study compared OAT to collagen membrane covered ACI (ACI-C). The 3 Level 1 systematic reviews/meta-analyses assessed the outcome of MFx, OAT, and various ACI methods in RCTs. OAT showed significantly better outcomes compared with MFx. In the 2 RCTs comparing ACI-P and MFx, no significant differences in clinical outcomes were seen, whereas significantly better outcomes were reported for M-ACI versus MFx in 1 study including patients with larger defects (5 cm2), and for ACI-C versus OAT in terms of Cincinnati Score. Higher failure rates were reported for MFx compared with OAT and for OAT compared with ACI-C, while no significant differences in failure rates were observed for ACI-P compared to MFx. CONCLUSION: Restorative cartilage procedures (ACI-C or M-ACI and OAT) are associated with better long-term clinical outcomes including lower complication and failure rates when compared with reparative techniques (MFx). Among the restorative procedures, OAT seems to be inferior to ACI especially in larger defects after longer follow-up periods. LEVEL OF EVIDENCE: Level I: Systematic review of Level I studies.

Indication for spinal surgery: associated factors and regional differences in Germany.

BACKGROUND: Rising surgery rates have raised questions about the indications for spinal surgery. The study investigated patient-level and regional factors associated with spinal surgery for patients with spinal diseases. METHODS: We undertook a cohort study based on routine healthcare data from Germany of 18.4 million patients within 60.9 million episodes of two patient-years before a possible spinal surgery in the time period 2008 to 2016. Using a Poisson model, the effects of a broad range of patient-related (sociodemographic, morbidity, social status), disease- and healthcare-related (physicians' specialty, conservative treatments) and regional variables were analyzed. RESULTS: There was substantial regional heterogeneity in the occurrence of spinal surgery which decreased by only one quarter when controlling for the various determinants assessed. Previous musculoskeletal and mental health disorders as well as physical therapy were associated with a lower probability of surgery in the fully-adjusted model. Prescriptions for pain medication and consultations of specialists were associated with a higher probability of surgery. However, the specific severity of the vertebral diseases could not be taken into account in the analysis. Furthermore, a substantial proportion of patients with surgery did not receive a consultation with an outpatient specialist (29.5%), preoperative diagnostics (37.0%) or physical therapy (48.3%) before hospital admission. CONCLUSION: This large study on spinal diseases in Germany highlights important patterns in medical care of spinal diseases and their association with the probability of spinal surgery. However, only a relatively small proportion of the regional heterogeneity in spinal surgery could be explained by the extensive consideration of confounders, which suggests the relevance of other unmeasured factors like physicians' preferences.

Cross-sectoral Analysis of 1.4 Million AOK-insured Patients with Back Pain in Baden-Württemberg - What Influence does Outpatient Specialist Care Have? / Sektorenübergreifende Rückenschmerz-Versorgungsanalyse von 1,4 Mio. AOK-Versicherten in Baden-Württemberg ­ welchen Einfluss hat die ambulante fachärztliche Versorgung?

BACKGROUND: Back pain is one of the leading causes of disability globally and the most common musculoskeletal pain in Germany. The lifetime prevalence of back pain ranges from 74% to 85%, and the point prevalence ranges from 32% to 49%. One in five individuals with statutory health insurance visits a doctor at least once a year for back pain, and 1 in 20 individuals is on sick leave at least once a year. The question as to what extent can different outpatient care concepts substantially contribute to improving care and avoiding inpatient hospital treatment has repeatedly been the subject of controversial political discussions. This study aimed to present a description of the reality of care in Baden-Württemberg (BW), Germany, based on claims data. MATERIAL AND METHODS: Anonymised routine billing data of AOK Baden-Württemberg were analysed in compliance with data protection regulations. The billing data cover the outpatient and inpatient care sectors. All AOK patients in BW who received at least one ICD10 diagnosis from their physician in the first half of 2015 were considered for the analysis. Patients with at least one diagnosis of back pain were evaluated as patients with back pain, whereby the assignment to the diagnosis group of specific or non-specific back pain was made based on the code. RESULTS: In the first half of 2015, nearly 988 925 patients with back pain were registered in the 6696 primary care clinics in BW, approximately 302 524 patients in 1172 orthopaedic clinics and 17 043 patients in 89 neurosurgical clinics. Primary care clinics reported back pain diagnosis in 34.6%, orthopaedic clinics in 51.9% and neurosurgical clinics in 78.6% of cases. Primary care clinics diagnosed a specific cause in approximately one-third of patients with back pain, orthopaedic clinics in approximately 40% of their patients and neurosurgery clinics in one in two cases. Overall, approximately 1.2% of 1.3 million patients with back pain (January to December 2015 in BW) were hospitalised. Inpatient therapy consisted of surgical therapy and conservative therapy. Nucleotomy, decompression and spondylodesis were the three most common surgical procedures performed. Pain medication and remedy prescriptions decreased pain after spinal surgery. There are significant regional differences in referral and surgery rates. The mean inpatient referral rate was 535 of 100 000 AOK insurants, and the median was 536 of 100 000 AOK insurants. The mean surgery rate among all admitted patients with back pain was 49.9%, and the median was 49.8%. CONCLUSION: The vast majority of patients with back pain are treated as outpatients. Only approximately 1.2% of all patients with back pain were treated as inpatients in 2015. Of these, approximately half underwent surgery. Spinal surgeries led to a decrease in pain medication and remedy prescription postoperatively. The three most frequent surgical procedures were 'decompression', 'excision of disc tissue' and 'spondylodesis'. There were significant regional differences.

Effects of the COVID-19 Pandemic on the Management of Spinal Disorders - Results of a National Survey. / Auswirkungen der COVID-19-Pandemie auf die Behandlung von Wirbelsäulenerkrankungen ­ Ergebnisse einer nationalen Umfrage.

INTRODUCTION: Far-reaching political steps to contain the COVID-19 pandemic have been undertaken in recent weeks. These also impact on surgical specialties not directly involved in the management of patients infected with the coronavirus. The Spine Section, the interdisciplinary professional political arm of the German Spine Society (DWG), the Professional Association for Orthopedic and Trauma Surgery (BVOU), and the Federal Association of German Neurosurgeons (BDNC) conducted a survey on the collateral effects of the pandemic on spine surgery in Germany. METHOD: This cross-sectional study included outpatient, day-patient and inpatient facilities caring for patients with spinal disorders during the COVID-19 pandemic. The survey was designed to analyse the impact of the COVID-19 pandemic on the management of inpatients and outpatients with spinal disorders and to assess the economic ramifications in the various settings. RESULTS: All members of the Spine Section (n = 134) were invited to participate in the questionnaire consented by BVOU and BDNC. The questions were answered anonymously, and the personal data entered did not permit any de-anonymisation. All in all, 68% (n = 91) of the respondents completed the survey in full. Based on the type of employment (practice 30%, practice/staff: 45% and staff: 25%) and range of activities (conservative: 5%, conservative/operative: 75%, operative: 20%) the survey by the Spine Section can be regarded as representative. 95% of the practices/outpatient clinics reported a decline in their number of patients. In addition, the number of operations performed fell by 36% (SD 17%). The percentage of elective procedures declined from approximately 78% to 6%. As a result, more than half of the physicians anticipated moderate (20 - 40%) economic challenges and 25% major (> 50%) financial problems. CONCLUSION: In order to cushion collateral damage in the wake of future pandemic management, any implications in the interdisciplinary management of patients with spinal disorders should be based on these results.

Collateral effect of COVID-19 on orthopedic and trauma surgery.

OBJECTIVES: The purpose of this study was to assess the impact of the COVID-19 pandemic on orthopedic and trauma surgery in private practices and hospitals in Germany. DESIGN: In this cross-sectional study, an online-based anonymous survey was conducted from April 2th to April 16th 2020. SETTING: The survey was conducted among 15.0000 of 18.000 orthopedic and trauma surgeons in Germany, both in private practices and hospitals. PARTICIPANTS: All members of the German Society of Orthopedic and Trauma Surgery (DGOU) and the Professional Association for Orthopedic and Trauma Surgery (BVOU). were invited by e-mail to participate in the survey. MAIN OUTCOME MEASURES: Out of 50 questions 42 were designed to enquire a certain dimension of the pandemic impact and contribute to one of six indices, namely "Preparedness", "Resources", "Reduction", "Informedness", "Concern", and "Depletion". Data was analyzed in multiple stepwise regression, aiming to identify those factors that independently influenced the indices. RESULTS: 858 orthopedic and trauma surgeons participated in the survey throughout Germany. In the multiple regression analysis, being employed at a hospital was identified as an independent positive predictor in the indices for "Preparedness", "Resources", and "Informedness" and an independent negative predictor regarding "Depletion". Self-employment was found to be an independent positive predictor of the financial index "Depletion". Female surgeons were identified as an independent variable for a higher level of "Concern". CONCLUSIONS: The study confirms a distinct impact of the COVID-19 pandemic on orthopedic and trauma surgery in Germany. The containment measures are largely considered appropriate despite severe financial constraints. A substantial lack of personal protective equipment (PPE) is reported. The multiple regression analysis shows that self-employed surgeons are more affected by this shortage as well as by the financial consequences than surgeons working in hospitals. WHAT ARE THE NEW FINDINGS: The COVID-19 pandemic has a profound impact on orthopedic and trauma surgery as an unrelated specialty. Self-employed surgeons are affected especially by a shortage of PPE and financial consequences. HOW MIGHT IT IMPACT ON CLINICAL PRACTICE IN THE NEAR FUTURE: Political and financial support can now be applied more focused to subgroups in the field of orthopedics and trauma surgery with an increased demand for support. A special emphasis should be set on the support of self-employed surgeons which are a more affected by the shortage of PPE and financial consequences than surgeons working in hospitals.

Deficient knee joint biomechanics in bilateral jumping after anterior cruciate ligament reconstruction.

BACKGROUND: The purpose of this study was to analyze sagittal-plane knee biomechanics in individuals with ACL reconstructions in bilateral countermovement jumps. This aimed to determine potential knee compensation strategies during a high-demanding symmetrical movement task from pre to six months post-ACL reconstruction. METHODS: 20 ACL-reconstructed individuals were tested pre-operatively, and then seven weeks, three months, and six months after reconstruction. Additionally, a matched control group was analyzed. Data were sampled with 3D motion capture and two force plates. The following kinematic data were analyzed: peak knee flexion during countermovement, knee angle at toe-off, and knee flexion excursion during landing. The following kinetic data were analyzed: peak knee extension moments during countermovement and landing. FINDINGS: ACL-reconstructed individuals showed significant increases in knee flexion during countermovement and knee flexion excursion during landing from six weeks to six months after reconstruction but they remained significantly below the level of the controls. The reconstructed knee joint showed increased flexion at toe-off compared to the non-injured leg at all test sessions. Knee extension moments during countermovement increased up to six months after reconstruction, but remained deficient in ACL-reconstructed individuals during countermovement and landing compared to the controls. INTERPRETATION: Although ACL-reconstructed individuals showed increases in most kinematic and kinetic variables, they remained below the controls at six months post-ACL reconstruction. The deficits between contralateral legs and compared to the controls show that six months post-ACL reconstruction, knee joint functionality was still not equal between reconstructed and non-injured legs or in comparison to controls.

[Hip Osteoarthritis - Epidemiology and Current Medical Care Situation - Health Care Data of 2.4 Million AOK Baden-Württemberg Insurees Aged 40 Years or Older]. / Koxarthrose ­ Epidemiologie und Versorgungsrealität ­ Versorgungsdatenanalyse von 2,4 Millionen Versicherten der AOK Baden-Württemberg ab 40 Jahren.

BACKGROUND: Due to demographic changes an increasing number of hip osteoarthritis can be expected with corresponding effects on the health care system. Hence, the objectives of our study were to obtain substantiated evidence about current medical care situation of hip osteoarthritis patients including outpatient care situation and hip replacement surgery. PATIENTS AND METHODS: Overall, the medical care data of 2.4 million insurees of the AOK Baden-Württemberg for the years 2007 to 2016 were analyzed. Lower limit of age was 40 years. The data includes outpatient and inpatient healthcare claims. RESULTS: The age standardized prevalence of hip osteoarthritis in adults aged 40 years or older is 6.18% (95% CI: ± 0.09%) among women and 6.02% (95% CI: ± 0.09%) among men. From the age of 75, sex differences become significant. The maximum number of newly diagnosed cases of hip osteoarthritis (women: 1.31%, men: 1.16%) is found in the 80 - 84-year-olds. From the age of 85, 17.4% of all women and 16.5% of all men show a hip osteoarthritis. The maximum number of hip replacement surgery among osteoarthritis patients (women: 5.2%, men: 4.3%) appears in the 75- to 79-year-olds. After the initial diagnosis of a hip osteoarthritis, every eighth (13.0%) AOK insured person receives a hip replacement surgery within the first year and one in four (24.8%) insurees within 8 years. Irrespective of the main diagnosis, numbers of hip replacement surgery did not increase between 2009 and 2016. On average, 300.9 (women) and 275.8 (men) hip replacement surgeries were performed per 100 000 insured years. From the age of 80, hip osteoarthritis drops back as the main diagnosis fur surgery. Consequently, from the age of 85 more than 70% of all hip replacement patients show a femoral fracture as main diagnosis. Only about ¾ of the hip osteoarthritis patients were in outpatient specialist care in the year before surgery, and far less than half of hip osteoarthritis patients received a referral to physiotherapy. CONCLUSION: Osteoarthritis of the hip occurs approximately equally often in women and men up to the age of 75 years. Nevertheless, women underwent surgery more frequently. Overall, the number of hip replacement surgery has not increased in the last eight years. Within the first eight years after initial diagnosis of hip osteoarthritis 24.8% of all patients receive a hip TEP. Hence, the majority of patients is treated conservatively in the first eight years. A direct comparison between incidence and prevalent hip osteoarthritis patients reveals that after many years of therapeutic care in the last 1 - 2 years prior to surgery, both the specialist care as well as the referral to physiotherapy are reduced. A reassessment of conservative treatment options over time seems to be necessary.

Pharmacological treatment of knee osteoarthritis: Special considerations of the new German guideline.

The pharmacological treatment of knee osteoarthritis (OA) is a purely symptomatic therapy, which often ensures that the mobility of the patient is successfully retained. This article refers to the recommendations and opinions regarding the pharmacotherapy of knee OA contained in the new guideline of the Association of the Scientific Medical Societies in Germany (AWMF), highlighting several important aspects and describing the considerations underlying the decision-making process. With this article it is hoped that therapeutic effectiveness can be realistically estimated, that any risks of medication errors and avoidable side effects can be reduced, and that further helpful measures can be taken into consideration.

[Structured Outpatient Care in a New Orthopaedic Healthcare Program: Patients' Experiences as Criterion for Quality]. / Strukturierte ambulante Patientenversorgung im Facharztvertrag Orthopädie: die Erfahrungen der Patienten als Qualitätskriterium.

Background In 2015 a survey was conducted in Baden-Württemberg (Germany) among patients treated by orthopaedic specialists participating in a medical specialists' contract between doctors and statutory health insurance funds, in accordance with § 73c of the German Social Code, Book V (SGB V). This contract aims to improve orthopaedic care by structured cooperation between orthopaedic specialists and general practitioners, who are the central coordinators of care, and refer patients to a specialist if necessary. The program is intended to achieve patient-centred care by taking into account the physical, psychological and social aspects of the patients' orthopaedic complaints, as well as informing and motivating patients for self-management and health promoting activities. The survey was intended to receive feedback on the quality of care from the patients enrolled in this medical specialists' program, particularly concerning the specific aims of the program. A feedback report with individual results and a comparison with the overall results of all participating medical practices was sent out to those practices that provided at least 20 analysable questionnaires. Material and Methods The anonymous survey was conducted using a questionnaire specifically developed for the project. Participating practices handed out questionnaires to up to 100 patients who were enrolled in the program and consulted their orthopaedic or surgical specialist within 3 months of the start of the survey. Completed questionnaires were collected and sent to the research institute for data analysis in a sealed box. Results A total of 10,010 patients from 267 practices took part in the survey. Data analysis (including an anonymous comparison of the results of participating practices) was conducted on the basis of patients' responses from 183 practices that had obtained at least 20 completed questionnaires (8,988 patients, response rate 49.1%). Survey results are presented on doctor-patient communication, scheduling appointments, waiting times, cooperation with general practitioner, referral and treatment. On the whole, patients were satisfied with the care provided by their orthopaedic or surgical specialist. The comparison between the practices revealed significant differences in the patients' sociodemographic features and their feedback on the medical care received. Patients' evaluation of information and the counselling received from their orthopaedic/surgical specialist showed the strongest correlation with overall satisfaction. Referral by their general practitioner had a positive influence on patients' intentions to consult their orthopaedic/surgical specialist again. From the patients' point of view, doctors' information and counselling on self-help activities (e.g. eating habits, physical activity) had the largest potential for improvement. Conclusions The survey's results confirm the objectives of this new orthopaedic health care program, especially motivational counselling on adequate physical activity and self-management. They provide a basis for the further development of the quality of care, in accordance with both the contractual aims and the patients' needs.

How does functionality proceed in ACL reconstructed subjects? Proceeding of functional performance from pre- to six months post-ACL reconstruction.

This is the first study examining functionality of subjects with anterior cruciate ligament (ACL) tears and a subsequent reconstruction comprehensively by multiple test sessions from pre- to six months post-reconstruction. The purpose was to evaluate if a generally applied rehabilitation program restores functionality to levels of healthy controls. Subjects with unilateral tears of the ACL were compared to matched healthy controls throughout the rehabilitation. 20 recreational athletes were tested: T1 (preoperative), 6 weeks after tear; T2, 6 weeks, T3, 3 months, T4, 6 months post-reconstruction. At all test sessions, subjects self-evaluated their activity level with the Tegner activity score and their knee state with the Knee Injury and Osteoarthritis Outcome Score. Passive range of motion during knee flexion and extension and leg circumference were measured as functional clinical tests. Bilateral countermovement jumps, one-leg jumps for distance and isometric force tests in knee flexion and extension with 90° and 110° knee angle were conducted as functional performance tests. For determination of functionality, leg symmetry indices (LSIs) were calculated by dividing values of the injured by the uninjured leg. In the ACL group most LSIs decreased from T1 to T2, and increased from T2 and T3 to T4. LSIs of ACL subjects remained lower than LSIs of healthy controls at 6 months post-reconstruction in nearly all parameters. Self-evaluation of ACL subjects showed, additionally, that activity level was lower than the pre-injury level at 6 months post-reconstruction. Low LSIs and low self-evaluation indicate that knee joint functionality is not completely restored at 6 months post-reconstruction. The study shows that multiple comprehensive testing throughout the rehabilitation gives detailed images of the functional state. Therefore, the functional state of ACL reconstructed individuals should be evaluated comprehensively and continuously throughout the rehabilitation to detect persisting deficiencies detailed and adapt rehabilitation programs individually depending on the functionality.

Evidence of an Eicosanoid Contribution to IL-1 Induction of IL-6 in Human Articular Chondrocytes.

It has been demonstrated previously that interleukin-1 (IL-1) induces articular cartilage explants and chondrocytes in culture to produce elevated levels of inflammatory mediators such as interleukin-6 (IL-6) and prostaglandins. Previous studies have also demonstrated a relationship between IL-6 secretion and the ability of IL-1 to modulate proteoglycan synthesis by chondrocytes. In this study we have utilized an alginate culture system in an effort to investigate a role for eicosanoids in IL-1 induction of IL-6 expression in human articular chondrocytes. IL-1 treatment of chondrocytes cultured in alginate resulted in increased synthesis of IL-6 and prostaglandins, but not leukotrienes. Cyclo-oxygenase inhibitor, indomethacin (5 &mgr;g ml(minus sign1)), was able to inhibit prostaglandin synthesis to below basal levels with no significant effect on the levels of IL-6 released by chondrocytes in response to IL-1. When chondrocytes were treated with 5 &mgr;g ml(minus sign1) indomethacin and 10 &mgr;M of the general lipoxygenase inhibitor, nordihydroguiaretic acid (NDGA), an approximate 50% decrease in IL-1-induced IL-6 expression was observed. Alone, levels of NDGA specific for lipoxygenase inhibition (10 &mgr;M) did not affect IL-1-induced IL-6 expression, but higher levels of NDGA (50 &mgr;M) which inhibited both prostaglandin and leukotriene biosynthesis reduced IL-1-induced IL-6 expression to the same extent as that observed with 5 &mgr;g ml(minus sign1) indomethacin and 10 &mgr;M NDGA. This inhibition of IL-6 expression by NDGA and indomethacin was dose responsive and also reversible with the addition of exogenous prostaglandin E(2) (PGE(2)) or leukotriene B(4) (LTB(4)). Although IL-1-induced IL-6 expression was only affected when both prostaglandin and leukotriene biosynthesis were inhibited, elevated levels of PGE(2) but not leukotriene B(4), C(4), D(4), or E(4) were observed in the culture medium of IL-1-treated chondrocytes. These findings may indicate that cyclo-oxygenase products such as PGE(2) normally contribute to IL-1 induction of IL-6 expression in chondrocytes, and under conditions when cyclo-oxygenase is inhibited, lipoxygenase products alternatively contribute to this response.