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Lorente A, Mariscal G, Lorente R. Incidence and risk factors for complex regional pain syndrome in radius fractures: meta-analysis. Arch Orthop Trauma Surg 2023; 143:5687-5699. [PMID: 37209231 DOI: 10.1007/s00402-023-04909-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/18/2023] [Accepted: 05/10/2023] [Indexed: 05/22/2023]
Abstract
PURPOSE This meta-analysis aimed to evaluate the incidence and risk factors for complex regional pain syndrome (CRPS) in radius fractures. METHODS The meta-analysis was performed using the PubMed, Embase, Scopus, and Cochrane Collaboration Library databases. Studies focusing on patients with conservative or surgically treated radius fractures leading to CRPS were included. A control group consisting of patients with radius fractures and no CRPS (-) was included. The outcome measures were incidence and risk factors. Comparative studies were also included. Data were combined using Review Manager 5.4. RESULTS Out of 610 studies, nine studies were included. The incidence of CRPS after radius fractures ranged from 0.19 to 13.63% (95% CI: 11.12-16.15%). Open fractures, high-energy mechanisms in radial head fractures, and associations with ulnar fractures were risk factors for CRPS [(RR: 0.98; 95% CI: 0.97-1.00), (RR: 0.18; 95% CI: 0.07-0.47), and (RR: 1.25; 95% CI: 1.17-1.35), respectively]. Other risk factors were female sex and high body mass index [(RR: 1.20; 95% CI: 1.05-1.37) and (MD: 1.17; 95% CI: 0.45-1.88)]. Psychiatric factors also increased the incidence of CRPS (RR: 2.04; 95% CI: 1.83-2.28). On the other hand, the type of surgery (external fixation or open reduction and internal fixation) and manipulations; associated comorbidities (diabetes and hypertension) together with tobacco and alcohol abuse; marital status, educational level, employment status, and socioeconomic status were not risk factors (p > 0.05). CONCLUSION The incidence of CRPS in radius fractures was 13.63%. Fractures with greater complexity or greater associated tissue damage, female sex, high BMI, and psychiatric disorders were risk factors for the development of CRPS. LEVEL OF EVIDENCE Meta-analysis of cohort and case series studies; II.
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Affiliation(s)
- Alejandro Lorente
- Department of Traumatology and Orthopaedic Surgery, University Hospital Ramón y Cajal, Madrid, Spain
| | - Gonzalo Mariscal
- Institute for Research on Musculoskeletal Disorders, School of Medicine, Valencia Catholic University, Carrer de Quevedo, 2, 46001, València, Valencia, Spain.
- Mediterranean Observatory for Clinical and Health Research, Valencia, Spain.
| | - Rafael Lorente
- Department of Orthopedic Surgery and Traumatology, University Hospital of Badajoz, Badajoz, Spain
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2
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Diepold J, Deininger C, Von Amelunxen BC, Deluca A, Siegert P, Freude T, Wichlas F. Comparison of Epidemiological Data of Complex Regional Pain Syndrome (CRPS) Patients in Relation to Disease Severity-A Retrospective Single-Center Study. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2023; 20:946. [PMID: 36673702 PMCID: PMC9859309 DOI: 10.3390/ijerph20020946] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Revised: 12/29/2022] [Accepted: 12/31/2022] [Indexed: 06/17/2023]
Abstract
A retrospective data analysis of 159 complex regional pain syndrome (CRPS) patients (n = 116 women, 73.0%, mean age 60.9 ± 14.4 years; n = 43 men, 27.0%, mean age 52.3 ± 16.7 years) was performed from 2009 to 2020. The right side was affected in 74 patients (46.5%), the left in 84 patients (52.8%), and 1 patient (0.7%) developed a bilateral CRPS. Data were analyzed for the frequency and distribution of symptoms. The number of reduction maneuvers and the number of Budapest criteria were compared in relation to the severity of CRPS. Hand and wrist (n = 107, 67.3%), followed by foot and ankle (n = 36, 22.6%) and other locations (n = 16, 10.1%) were mainly affected by CRPS. The main causes included direct trauma (n = 120, 75.5%), surgery without previous trauma (n = 25, 15.7%), other causes (n = 9, 5.7%), and spontaneous development (n = 3, 1.9%); there was also missing documentation (n = 2, 1.3%). The most common symptoms were difference in temperature (n = 156, 98.1%), limitation of movement (n = 149, 93.7%), and swelling (n = 146, 91.8%). There was no correlation between the number of reduction maneuvers and the number of Budapest criteria. In summary, patients with the following constellation are at increased risk of CRPS: a female, over 60 years old, who has fallen and has sustained a fracture in the hand or wrist with persistent pain and has been immobilized with a cast for approx. 4 weeks.
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Affiliation(s)
- Julian Diepold
- Department of Orthopedics and Traumatology, University Hospital Salzburg, Müllner Hauptstraße 48, 5020 Salzburg, Austria
| | - Christian Deininger
- Department of Orthopedics and Traumatology, University Hospital Salzburg, Müllner Hauptstraße 48, 5020 Salzburg, Austria
- Institute of Tendon and Bone Regeneration, Spinal Cord Injury & Tissue Regeneration Center Salzburg, Paracelsus Medical University, Strubergasse 21, 5020 Salzburg, Austria
| | - Berndt-Christian Von Amelunxen
- Department of Orthopedics and Traumatology, University Hospital Salzburg, Müllner Hauptstraße 48, 5020 Salzburg, Austria
| | - Amelie Deluca
- Institute of Tendon and Bone Regeneration, Spinal Cord Injury & Tissue Regeneration Center Salzburg, Paracelsus Medical University, Strubergasse 21, 5020 Salzburg, Austria
| | - Paul Siegert
- 1st Orthopaedic Department, Orthopaedic Hospital Speising, Speisinger Straße 109, 1130 Wien, Austria
| | - Thomas Freude
- Department of Orthopedics and Traumatology, University Hospital Salzburg, Müllner Hauptstraße 48, 5020 Salzburg, Austria
| | - Florian Wichlas
- Department of Orthopedics and Traumatology, University Hospital Salzburg, Müllner Hauptstraße 48, 5020 Salzburg, Austria
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Melf-Marzi A, Böhringer B, Wiehle M, Hausteiner-Wiehle C. Modern Principles of Diagnosis and Treatment in Complex Regional Pain Syndrome. DEUTSCHES ARZTEBLATT INTERNATIONAL 2022; 119:879-886. [PMID: 36482756 PMCID: PMC10011717 DOI: 10.3238/arztebl.m2022.0358] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Revised: 04/21/2022] [Accepted: 10/17/2022] [Indexed: 12/15/2022]
Abstract
BACKGROUND Background: Complex regional pain syndrome (CRPS) is a relatively common complication, occurring in 5% of cases after injury or surgery, particularly in the limbs. The incidence of CPRS is around 5-26/100 000. The latest revision of the International Statistical Classification of Diseases and Related Health Problems (ICD-11) now categorizes CRPS as a primary pain condition of multifactorial origin, rather than a disease of the skeletal system or the autonomic nervous system. METHODS Method: Based on a selective search of the literature, we summarize current principles for the diagnosis and treatment of CRPS. RESULTS Results: Regional findings in CRPS are accompanied by systemic symptoms, especially by neurocognitive disorders of body perception and of symptom processing. The therapeutic focus is shifting from predominantly passive peripheral measures to early active treatments acting both centrally and peripherally. The treatment is centered on physiotherapy and occupational therapy to improve sensory perception, strength, (fine) motor skills, and sensorimotor integration/ body perception. This is supported by stepped psychological interventions to reduce anxiety and avoidance behavior, medication to decrease inflammation and pain, passive physical measures for reduction of edema and of pain, and medical aids to improve functioning in daily life. Interventional procedures should be limited to exceptional cases and only be performed in specialized centers. Spinal cord and dorsal root ganglion stimulation, respectively, are the interventions with the best evidence. CONCLUSION Conclusion: The modern principles for the diagnosis and treatment of CRPS consider both, physiological and psychological mechanisms, with the primary goal of restoring function and participation. More research is needed to strengthen the evidence base in this field.
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Affiliation(s)
- Alexandra Melf-Marzi
- Department for BG Rehabilitation; Outpatient CRPS Clinic; BG Trauma Center Murnau; Department for Anesthesiology, Intensive Care Medicine and Pain Therapy; Multimodal Pain Therapy; BG Trauma Center Murnau; Department for Neurology, Clinical Neurophysiology and Stroke Unit; BG Trauma Center Murnau; Clinic and Polyclinic for Psychosomatic Medicine and Psychotherapy, Klinikum rechts der Isar, Technical University of Munich
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4
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Farzad M, MacDermid JC, Packham T, Khodabandeh B, Vahedi M, Shafiee E. Factors associated with disability and pain intensity in patients with complex regional pain syndrome. Disabil Rehabil 2022; 44:8243-8251. [PMID: 34870547 DOI: 10.1080/09638288.2021.2009045] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
PURPOSE To examine the associations between psychological factors (pain catastrophizing, pain-related anxiety, and fear of pain) and level of pain and disability in patients with complex regional pain syndrome (CRPS). METHODS One hundred and two patients with CRPS were recruited from tertiary care centers with the different upper limb injuries were evaluated for pain, disability, and psychological factors. Patients completed the Disabilities of the Arm, Shoulder, and Hand (DASH) Questionnaire, Patient Rated Wrist Evaluation (PRWE), Pain Catastrophizing Scale (PCS), Tampa Scale of Kinesiophobia (TSK-11), and Depression, Anxiety, and Stress Scale (DASS). The associations of pain and disability with presence of these behavioral and mental health factors were examined using bivariate and multivariable analyses. These models were adjusted for age, sex, injured dominant hand, and previous surgery. RESULTS A higher pain catastrophizing score (β = 0.55, p = 0.00) was associated with greater disability. A higher pain catastrophizing score (β = 0.35, p = 0.001) and female gender (β = 0.24, p = 0.01) were associated with greater pain at rest (PAR). A higher pain catastrophizing score and having a surgical history were associated with greater pain with movement (β = 0.25, p = 0.02). Scores of ≥18.5 in PCS, ≥57.5 on TSK, and ≥15.5 on DASS were associated with higher risk of experiencing pain and disability. CONCLUSIONS Pain catastrophizing, female sex, and surgical intervention are associated with poor outcomes. Physiologic, psychological factors, and treatment factors interact to influence outcomes. The results of this study further validate the associations of chronic pain and disability with pain catastrophizing in patients with CRPS. The novel finding of this study is introducing cut-off scores for TSK, PCS, and DASS as a screening tool to predict pain, functional limitations.Implication for rehabilitationPain catastrophizing has a vital role in the magnitude of disability and pain in patients with CRPS.The novel finding of this paper was the cut-off scores on the psychological evaluations that can enable using them as screening tool for bad outcomes in patients with CRPS.Cut off scores from different psychological evaluations can be used as a yellow flag for clinician's for detecting patients with increased risk of pain and disability.The identification of a cut-off can also have implications for implementing change in clinical practice by identifying the need for early and intensive interventions.
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Affiliation(s)
- Maryam Farzad
- Department of Health and Rehabilitation Sciences, School of Physical Therapy, University of Western Ontario, London, Canada.,Roth
- McFarlane Hand and Upper Limb Centre, St Joseph's Health Care, London, Canada
| | - Joy C MacDermid
- Physical Therapy and Surgery, Western University, London, Canada.,Clinical Research Lab, Hand and Upper Limb Center, St. Joseph's Health Center, London, Canada.,Rehabilitation Science, McMaster University, Hamilton, Canada
| | - Tara Packham
- School of Rehabilitation Sciences, Faculty of Health Sciences, McMaster University, Hamilton, Canada
| | - Behzad Khodabandeh
- Department of Occupational Therapy, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran
| | - Mohsen Vahedi
- Department of Biostatistics and Epidemiology, University of Social Welfare and Rehabilitation Science, Tehran, Iran
| | - Erfan Shafiee
- Department of Health and Rehabilitation Sciences, School of Physical Therapy, University of Western Ontario, London, Canada
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Roberts T, Kocialcowski C, Cowey A. Dorsal bridging plates for the treatment of high and low energy distal radius fractures. J Clin Orthop Trauma 2022; 35:102048. [PMID: 36340961 PMCID: PMC9634010 DOI: 10.1016/j.jcot.2022.102048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/03/2022] [Revised: 09/13/2022] [Accepted: 10/18/2022] [Indexed: 11/06/2022] Open
Abstract
Distal radius fractures are common and treatment of complex fracture pattens can be challenging. We assessed functional outcomes, radiographic analysis, and complications of 26 distal radius fractures treated with dorsal bridging plate (DBP) at a mean of 14 months post plate removal (6-34 months). Radiographic parameters were measured pre- and post-operatively and patient reported wrist evaluation scores, patient reported wrist range of movement and satisfaction scores. Mean post-operative total PRWE was 26 (range 0-76) and mean wrist mobility 52° flexion (range 10°-85°) and 50° extension (range 10°-85°). Mean post-operative patient satisfaction score was 89% (range 50-100%). Four patients developed complications (one EPL rupture and three developed CRPS). DBP can reliably restore distal radius anatomy and is associated with good functional outcome scores, return of functional range of wrist movement and high levels of patient satisfaction. Level of Evidence III.
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Affiliation(s)
- Tobias Roberts
- Corresponding author. Trauma & Orthopaedic Department, St. George's Hospital, London, SW17 0QT, UK.
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6
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Ring D. Priorities for Advancing Mental and Social Health Among People Presenting for Care of Musculoskeletal Symptoms : International Consortium for Mental and Social Health in Musculoskeletal Care. J Clin Psychol Med Settings 2022; 30:197-203. [PMID: 35318572 DOI: 10.1007/s10880-022-09865-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/21/2022] [Indexed: 11/28/2022]
Abstract
An international group of clinicians and researchers formed a consortium to advance mental and social health among people seeking musculoskeletal specialty care: The International Consortium for Mental and Social Health in Musculoskeletal Care (I-MESH). As a first step to organize the work of the consortium, we sought to identify important, appropriate, and feasible interventions to address mental and social health. Members of I-MESH responded to a list of 10 queries intended to elicit mental and social health priorities. Open text answers were analyzed by 2 researchers to elicit individual themes. A modified RAND/UCLA Delphi Appropriateness process was conducted of 32 candidate social and mental health priorities using a 15-person panel of I-MESH members, using 2 rounds of independent voting with intervening discussion via surveys and video teleconferences. Panelists rated each potential priority for importance, feasibility, and appropriateness on a 9-point Likert scale. Top level priorities scored both mean and median greater than 7 in all 3 categories. Second level priorities scored a median 7 or greater on the final scoring in all 3 categories. Candidate priorities were organized into 9 themes: viable business model, coordination of specialty and non-specialty care, actionable measurement, public health/cultural interventions, research, adequate and timely access, incorporating assessment in care, strategies to develop the patient-clinician relationship, communication strategies that can directly enhance health, and support for mental and social health. Twelve top level (met mean and median criteria) and 17 s level priorities (met median criterion) were identified. Implementing evidence-based strategies to efficiently diagnose, prioritize, and begin addressing mental and social health opportunities has the potential for notable impact on both musculoskeletal and overall health. It is our hope that the results of this Delphi panel will generate enthusiasm and collaboration for implementing the mounting evidence that social and mental health are integral to musculoskeletal health.
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Affiliation(s)
- David Ring
- Health Discovery Building, Dell Medical School-The University of Texas at Austin, HDB 6.706, 1701 Trinity St., Austin, TX, 78712, USA.
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7
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Taylor SS, Noor N, Urits I, Paladini A, Sadhu MS, Gibb C, Carlson T, Myrcik D, Varrassi G, Viswanath O. Complex Regional Pain Syndrome: A Comprehensive Review. Pain Ther 2021; 10:875-892. [PMID: 34165690 PMCID: PMC8586273 DOI: 10.1007/s40122-021-00279-4] [Citation(s) in RCA: 77] [Impact Index Per Article: 25.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Accepted: 06/03/2021] [Indexed: 12/22/2022] Open
Abstract
Complex regional pain syndrome (CRPS) is a chronic pain condition often involving hyperalgesia and allodynia of the extremities. CRPS is divided into CRPS-I and CRPS-II. Type I occurs when there is no confirmed nerve injury. Type II is when there is known associated nerve injury. Female gender is a risk factor for developing CRPS. Other risk factors include fibromyalgia and rheumatoid arthritis. Unfortunately, the pathogenesis of CRPS is not yet clarified. Some studies have demonstrated different potential pathways. Neuropathic inflammation, specifically activation of peripheral nociceptors of C-fibers, has been shown to play a critical role in developing CRPS. The autonomic nervous system (ANS) is involved. Depending on whether it is acute or chronic CRPS, norepinephrine levels are either decreased or increased, respectively. Some studies have suggested the importance of genetics in developing CRPS. More consideration is being given to the role of psychological factors. Some association between a history of depression and/or post-traumatic stress disorder (PTSD) and the diagnosis of CRPS has been demonstrated. Treatment modalities available range from physical therapy, pharmacotherapy, and interventional techniques. Physical and occupational therapies include mirror therapy and graded motor imagery. Medical management with non-steroidal anti-inflammatory drugs (NSAIDs) has not shown significant improvement. There have been supporting findings in the use of short-course steroids, bisphosphonates, gabapentin, and ketamine. Antioxidant treatment has also shown some promise. Other pharmacotherapies include low-dose naltrexone and Botulinum toxin A (BTX-A). Sympathetic blocks are routinely used, even if their short- and long-term effects are not clear. Finally, spinal cord stimulation (SCS) has been used for decades. In conclusion, CRPS is a multifactorial condition that still requires further studying to better understand its pathogenesis, epidemiology, genetic involvement, psychological implications, and treatment options. Future studies are warranted to better understand this syndrome. This will provide an opportunity for better prevention, diagnosis, and treatment of CRPS.
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Affiliation(s)
- Samantha-Su Taylor
- grid.134563.60000 0001 2168 186XUniversity of Arizona College of Medicine-Phoenix, Phoenix, AZ USA
| | - Nazir Noor
- Department of Anesthesiology, Mount Sinai Medical Center, 4300 Alton Road, Miami Beach, FL, 33130, USA.
| | - Ivan Urits
- grid.492905.3Southcoast Physician Group Pain Medicine, Southcoast Health, North Dartmouth, MA USA ,grid.64337.350000 0001 0662 7451Department of Anesthesiology, Louisiana State University Health Shreveport, Shreveport, LA USA
| | - Antonella Paladini
- grid.158820.60000 0004 1757 2611Department of MESVA, University of L’Aquila, 67100 L’Aquila, Italy
| | - Monica Sri Sadhu
- grid.134563.60000 0001 2168 186XUniversity of Arizona College of Medicine-Phoenix, Phoenix, AZ USA
| | - Clay Gibb
- grid.260024.2Midwestern University Chicago College of Osteopathic Medicine, Chicago, IL USA
| | - Tyler Carlson
- grid.134563.60000 0001 2168 186XUniversity of Arizona College of Medicine-Phoenix, Phoenix, AZ USA
| | - Dariusz Myrcik
- grid.411728.90000 0001 2198 0923Department of Internal Medicine, Medical University of Silesia, 42-600 Katowice, Bytom Poland
| | | | - Omar Viswanath
- grid.134563.60000 0001 2168 186XUniversity of Arizona College of Medicine-Phoenix, Phoenix, AZ USA ,grid.64337.350000 0001 0662 7451Department of Anesthesiology, Louisiana State University Health Shreveport, Shreveport, LA USA ,Valley Pain Consultants-Envision Physician Services, Phoenix, AZ USA ,grid.254748.80000 0004 1936 8876Department of Anesthesiology, Creighton University School of Medicine, Omaha, NE USA
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DeFrancesco CJ, Wilson L, Lebrun DG, Memtsoudis SG, Fabricant PD. Pediatric Tibial Spine Fractures: Exploring Case Burden by Age and Sex. Orthop J Sports Med 2021; 9:23259671211027237. [PMID: 34552990 PMCID: PMC8450686 DOI: 10.1177/23259671211027237] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/09/2021] [Accepted: 02/28/2021] [Indexed: 11/16/2022] Open
Abstract
Background Pediatric tibial spine fractures (TSFs) are a well-known clinical entity, but the epidemiology of these injuries is not fully understood. Further, there are limited data on outcomes after TSF treatment, specifically the proportion of patients requiring subsequent anterior cruciate ligament (ACL) reconstruction. Purpose To describe the distribution of TSF case burden by age and sex and to determine the proportion of patients undergoing subsequent ACL reconstruction or developing ACL insufficiency. Study Design Descriptive epidemiology study. Methods The Truven Health MarketScan database was queried to identify patients aged 7 to 18 years with TSFs between 2016 and 2018. Diagnosis and initial treatment (surgical vs nonoperative) were recorded based on database coding. Case burden by age and sex was calculated. The database, which includes longitudinal data, was then queried for subsequent diagnoses of ACL insufficiency as well as subsequent ACL reconstruction procedures performed among the patients. Results We found 876 cases of TSF, 71.3% of which were treated nonoperatively. The male to female ratio for case burden was 2.2:1. Cases peaked at age 13 to 14 years for boys and age 11 to 12 years for girls. Of all cases identified, 3.7% also had either a diagnosis code for ACL laxity entered in a delayed fashion into the database or a later procedure code for ACL reconstruction (considered together to represent "subsequent ACL insufficiency"). Only 15 subsequent ACL reconstructions (1.7% of cases) were found, all of which were among boys and 9 of which were among boys aged 13 to 14 years. Conclusion This longitudinal study is the largest epidemiological analysis of pediatric TSFs to date. We found low rates of subsequent ACL insufficiency and ACL reconstruction, with boys aged 13 to 14 years accounting for most of those cases. Rates of subsequent ACL reconstruction were lower than previously reported. Boys accounted for more than two times as many TSF cases as girls.
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Affiliation(s)
| | - Lauren Wilson
- Division of Biostatistics, Hospital for Special Surgery, New York, New York, USA
| | - Drake G Lebrun
- Division of Pediatric Orthopedic Surgery, Hospital for Special Surgery, New York, New York, USA
| | - Stavros G Memtsoudis
- Division of Anesthesiology, Critical Care & Pain Management, Hospital for Special Surgery, New York, New York, USA
| | - Peter D Fabricant
- Division of Pediatric Orthopedic Surgery, Hospital for Special Surgery, New York, New York, USA
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9
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Abstract
Distal radial fractures are associated with good outcomes; however, although they occur at low rates, complications can significantly impair treatment success. Therefore, the treating surgeon should be aware of potential complications associated with each treatment type and how to best prevent them. Although certain patient-specific and fracture-specific factors may increase the risk of adverse outcomes, most are nonmodifiable risk factors at the time of presentation, so it is imperative that every effort is made to mitigate these risk factors to prevent long-term morbidity. Patients should be well-informed about these complications and potential symptoms so that they can be addressed expeditiously.
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Affiliation(s)
- Hayden S Holbrook
- Department of Orthopaedic Surgery & Biomedical Engineering, University of Tennessee-Campbell Clinic, Memphis, TN, USA.
| | - Travis A Doering
- Department of Orthopaedic Surgery & Biomedical Engineering, University of Tennessee-Campbell Clinic, Memphis, TN, USA
| | - Benjamin M Mauck
- Department of Orthopaedic Surgery & Biomedical Engineering, University of Tennessee-Campbell Clinic, Memphis, TN, USA
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10
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Dutton LK, Rhee PC. Complex Regional Pain Syndrome and Distal Radius Fracture: Etiology, Diagnosis, and Treatment. Hand Clin 2021; 37:315-322. [PMID: 33892884 DOI: 10.1016/j.hcl.2021.02.013] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Complex regional pain syndrome (CRPS) is a chronic pain condition characterized by a constellation of signs and symptoms including pain out of proportion to the injury or insult, autonomic dysfunction, trophic changes, and impaired function. CRPS may occur following either conservative or surgical management of distal radius fractures and can significantly complicate the trajectory of a patient's recovery. Although the incidence, diagnosis, prevention, and treatment of this condition have been extensively studied, optimal methods to identify, prevent, and treat this condition remain controversial. This article reviews the available literature on the diagnosis and treatment of CRPS in distal radius fractures.
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Affiliation(s)
- Lauren Kate Dutton
- Department of Orthopedic Surgery, Mayo Clinic, 200 1st Street Southwest, Rochester, MN 55905, USA
| | - Peter Charles Rhee
- Department of Orthopedic Surgery, Mayo Clinic, 200 1st Street Southwest, Rochester, MN 55905, USA.
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11
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DeGeorge BR, Van Houten HK, Mwangi R, R Sangaralingham L, Kakar S. Outcomes and complications of operative versus non-operative management of distal radius fractures in adults under 65 years of age. J Hand Surg Eur Vol 2021; 46:159-166. [PMID: 32752977 DOI: 10.1177/1753193420941310] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
To compare the outcomes of non-operative versus operative treatment for distal radius fractures in patients aged from 18 to 64 years, we performed a retrospective analysis using the OptumLabs® Data Warehouse using International Classification of Diseases, Ninth Revision, Clinical Modification (ICD-9-CM) diagnosis codes of distal radius fracture. Of the 34,184 distal radius fractures analysed, 11,731 (34%) underwent operative management. Short-term complications within 90 days of fracture identified an overall complication rate of 16.6 per 1000 fractures and the 1-year upper extremity-specific complication rate was 287 per 1000 fractures. Overall, post-injury stiffness was the most common 1-year upper extremity-specific complication and was associated with operative management (202.8 vs. 123.4 per 1000 fractures, operative vs. non-operative, p < 0.01). Secondary procedures were significantly more common following non-operative management (8.7% vs. 43%, operative vs. non-operative, p < 0.01) with carpal tunnel release representing the most common secondary procedure. Operative management of distal radius fractures resulted in significantly fewer secondary procedures at the expense of increased overall 1-year complication rates, specifically stiffness.Level of evidence: III.
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Affiliation(s)
- Brent R DeGeorge
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN, USA
| | - Holly K Van Houten
- Robert D. and Patricia E. Kern Center for the Science of Health Care Delivery, Mayo Clinic, Rochester, MN, USA.,OptumLabs, Cambridge, MA, USA
| | - Raphael Mwangi
- Robert D. and Patricia E. Kern Center for the Science of Health Care Delivery, Mayo Clinic, Rochester, MN, USA
| | - Lindsey R Sangaralingham
- Robert D. and Patricia E. Kern Center for the Science of Health Care Delivery, Mayo Clinic, Rochester, MN, USA.,OptumLabs, Cambridge, MA, USA
| | - Sanjeev Kakar
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN, USA
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12
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Chang C, McDonnell P, Gershwin ME. Complex regional pain syndrome - Autoimmune or functional neurologic syndrome. J Transl Autoimmun 2020; 4:100080. [PMID: 33490941 PMCID: PMC7804982 DOI: 10.1016/j.jtauto.2020.100080] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Revised: 12/17/2020] [Accepted: 12/21/2020] [Indexed: 12/23/2022] Open
Abstract
Complex regional pain syndrome (CRPS) purports to explain extremity pain accompanied by a variety of subjective complaints, including sensitivity to touch, fatigue, burning sensations, allodynia and signs consistent with voluntary immobilization, including skin changes, edema and trophic changes. By its own definition, CRPS pain is disproportionate to any inciting event or underlying pathology, which means that the syndrome describes non-anatomic and exaggerated symptoms. Although CRPS was coined in the early 1990s, physicians have described unexplained exaggerated pain for centuries. Before a small group of researchers assigned this historical phenomenon with the name CRPS, other physicians in various subspecialties investigated the existence of a common pathophysiologic mechanism but found none. The literature was searched for evidence of a reproducible pathologic mechanism for CRPS. Although some have suggested that CRPS is an autoimmune disease, there is a paucity of evidence to support this. While cytokines such as IL-1β, IL-6 and TNF-α have been detected during the early phases of CRPS, this cannot lead to the conclusion that CRPS is an autoimmune disease, nor that it is an autoinflammatory disorder. Moreover, intravenous immunoglobulin has showed inconsistent results in the treatment of CRPS. On the other hand, CRPS has been found to meet at least three out of four criteria of malingering, which was previously a DSM-IV diagnosis; and its diagnostic criteria are virtually identical to current DSM-5 Functional Neurological Disorder ("FND"), and proposed ICD-11 classification, which includes FND as a distinct neurological diagnosis apart from any psychiatric condition. Unfortunately, the creation of CPRS is not merely misguided brand marketing. It has serious social and health issues. At least in part, the existence of CRPS has led to the labeling of many patients with a diagnosis that allows the inappropriate use of invasive surgery, addictive opioids, and ketamine. The CRPS hypothesis also ignores the nature and purpose of pain, as a symptom of some organic or psychological process. Physicians have long encountered patients who voice symptoms that cannot be biologically explained. Terminology historically used to describe this phenomenon have been medically unexplained symptoms ("MUS"), hysterical, somatic, non-organic, psychogenic, conversion disorder, or dissociative symptoms. The more recent trend describes disorders where there is a functional, rather than structural cause of the symptoms, as "functional disorders." Physicians report high success treating functional neurological symptoms with reassurance, physiotherapy, and cognitive behavior therapy measured in terms of functional improvement. The CRPS label, however, neither leads to functional improvement in these patients nor resolution of symptoms. Under principles of evidence-based medicine, the CRPS label should be abandoned and the syndrome should simply be considered a subset of FNDs, specifically Functional Pain Disorder; and treated appropriately.
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Affiliation(s)
- Christopher Chang
- Division of Rheumatology, Allergy and Clinical Immunology, University of California, Davis, 451 Health Sciences Drive, Suite 6510, Davis, CA, 95616, USA.,Division of Immunology, Allergy and Rheumatology, Joe DiMaggio Children's Hospital and Memorial Healthcare System, 1131 N 35th Avenue, Suite 220, Hollywood, FL, 33021, USA
| | | | - M Eric Gershwin
- Division of Rheumatology, Allergy and Clinical Immunology, University of California, Davis, 451 Health Sciences Drive, Suite 6510, Davis, CA, 95616, USA
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Quadlbauer S, Pezzei C, Jurkowitsch J, Rosenauer R, Pichler A, Schättin S, Hausner T, Leixnering M. Functional and radiological outcome of distal radius fractures stabilized by volar-locking plate with a minimum follow-up of 1 year. Arch Orthop Trauma Surg 2020; 140:843-852. [PMID: 32221705 DOI: 10.1007/s00402-020-03411-9] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Indexed: 12/22/2022]
Abstract
INTRODUCTION Distal radius fractures (DRF) are the most common fractures of the upper extremities and incidence is expected to continue rising as life expectancy increases. Palmar locking plate stabilizing has since become the standard treatment for dorsally displaced DRF. Main aim of this study was to investigate correlation between radiological and clinical outcome in patients stabilized by palmar locking plate with a minimum follow-up of one year. METHODS A total of 524 patients with DRF, stabilized using palmar angular stable locking plate fixation were included in the study. Of these, 117 patients had to be excluded and another 177 were not accessible. The study group thus compromised 230 patients who returned for the follow-up investigation and were followed-up clinically and radiologically with a mean follow-up interval of 20 months. Outcome was evaluated using pain, range of motion (ROM) and grip strength parameters. In addition, self-assessment by patients was registered on the QuickDASH, PRWE and Mayo Score. The immediate postoperative and final checkup radiographs were scrutinized for alignment and intra-articular step-off. RESULTS Bivariant correlation analysis showed a significant correlation between ulnar variance and QuickDASH (r = 0.18, p = 0.01), grip strength (r = - 0.18, p = 0.04) and Mayo Score (r = - 0.23, p = 0.001). No significant differences could be found between an unacceptable (> 2 mm) and acceptable (< 2 mm) ulnar variance in respect of pain, ROM, grip strength and patient-reported outcome measurements. Age, gender, additional fracture to the ulnar styloid, or type of postoperative immobilization showed no significant or clinical important impact on the final patient-reported outcome. No significant differences in incidence of complications, ROM or loss of reduction could be found in any patients over or under 65 years of age. CONCLUSIONS Stabilization of DRF by palmar angular stable locking plate is a safe form of treatment and results in a good clinical and radiological outcome with low complication rate. Ulnar variance showed a significant correlation to grip strength, QuickDASH and Mayo Score, but an unacceptable ulnar variance (> 2 mm) was not associated with a worse clinical important outcome. Age (< 65/> 65 years), gender and type of immobilization had no impact on the complication rate or in the final functional or radiological outcome.
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Affiliation(s)
- Stefan Quadlbauer
- AUVA Trauma Hospital Lorenz Böhler, European Hand Trauma Center, Donaueschingenstrasse 13, 1200, Vienna, Austria. .,Ludwig Boltzmann Institute for Experimental Und Clinical Traumatology, AUVA Research Center, 1200, Vienna, Austria. .,Austrian Cluster for Tissue Regeneration, Vienna, Austria.
| | - Ch Pezzei
- AUVA Trauma Hospital Lorenz Böhler, European Hand Trauma Center, Donaueschingenstrasse 13, 1200, Vienna, Austria
| | - J Jurkowitsch
- AUVA Trauma Hospital Lorenz Böhler, European Hand Trauma Center, Donaueschingenstrasse 13, 1200, Vienna, Austria
| | - R Rosenauer
- AUVA Trauma Hospital Lorenz Böhler, European Hand Trauma Center, Donaueschingenstrasse 13, 1200, Vienna, Austria.,Ludwig Boltzmann Institute for Experimental Und Clinical Traumatology, AUVA Research Center, 1200, Vienna, Austria.,Austrian Cluster for Tissue Regeneration, Vienna, Austria
| | - A Pichler
- AUVA Trauma Hospital Lorenz Böhler, European Hand Trauma Center, Donaueschingenstrasse 13, 1200, Vienna, Austria
| | - S Schättin
- AUVA Trauma Hospital Lorenz Böhler, European Hand Trauma Center, Donaueschingenstrasse 13, 1200, Vienna, Austria
| | - T Hausner
- AUVA Trauma Hospital Lorenz Böhler, European Hand Trauma Center, Donaueschingenstrasse 13, 1200, Vienna, Austria.,Ludwig Boltzmann Institute for Experimental Und Clinical Traumatology, AUVA Research Center, 1200, Vienna, Austria.,Austrian Cluster for Tissue Regeneration, Vienna, Austria.,Department for Orthopedic Surgery and Traumatology, Paracelsus Medical University, 5020, Salzburg, Austria
| | - M Leixnering
- AUVA Trauma Hospital Lorenz Böhler, European Hand Trauma Center, Donaueschingenstrasse 13, 1200, Vienna, Austria
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Eraghi AS, Khazanchin A, Hosseinzadeh N, Pahlevansabagh A. A randomized controlled trial on Aspirin and complex regional pain syndrome after radius fractures. Eur J Transl Myol 2020; 30:8643. [PMID: 32499879 PMCID: PMC7254428 DOI: 10.4081/ejtm.2019.8643] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2019] [Accepted: 11/24/2019] [Indexed: 11/23/2022] Open
Abstract
Complex regional pain syndrome (CRPS) is often diagnosed in patients who are recovered with surgery or injury. CRPS is usually diagnosed in patients recovering from distal radius fractures. The aim of study was the effects of aspirin in prevention of the complex regional pain syndrome (CRPS) following a fracture of distal radius. In a double-blind, randomized controlled trial, 91 patients with unilateral extra-articular distal radius fractures were randomly allocated to receive either placebo (PLA) or 500 mg of aspirin (ASA) daily for 7 days. The effect of aspirin on the occurrence of CRPS was evaluated. The patients were assessed clinically and radiographically in the second, fourth and twelfth weeks by a physician who was unaware of the treatment allocation. Ninety-one patients (ASA, n=44; PLA, n=47) were enrolled in the study. The prevalence of CRPS in all patients was 16.5%. The prevalence of CRPS in the aspirin group was lower (13.6%) than the placebo group (19.1%), but this difference was not statistically significant. The only significant difference was the lower rate of regional osteoporosis seen in the radiographs of aspirin group. Mean age was significantly higher in the patients with CRPS. Also, comminuted distal radius fractures (A3-type) were significantly more common in the patients with CRPS. Administration of aspirin in patients with a distal radius fracture was associated with a lower incidence of CRPS, but, not statistically significant. Further investigations needs to be done with a larger sample size, longer follow-up period and multi-center design.
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Affiliation(s)
- Amir Sobhani Eraghi
- Department of Orthopaedics Surgery, Rasoul Akram Hospital, Iran University of Medical Sciences, Tehran, Iran
| | - Amir Khazanchin
- Bone and Joint Reconstruction Research Center, Shafa Orthopedic Hospital, Iran University of Medical Sciences, Tehran, Iran
| | - Nima Hosseinzadeh
- Department of Orthopaedics Surgery, Rasoul Akram Hospital, Iran University of Medical Sciences, Tehran, Iran.,Bone and Joint Reconstruction Research Center, Shafa Orthopedic Hospital, Iran University of Medical Sciences, Tehran, Iran
| | - Alireza Pahlevansabagh
- Department of Orthopaedics Surgery, Rasoul Akram Hospital, Iran University of Medical Sciences, Tehran, Iran
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Nguyen A, Vather M, Bal G, Meaney D, White M, Kwa M, Sungaran J. Does a Hand Strength-Focused Exercise Program Improve Grip Strength in Older Patients With Wrist Fractures Managed Nonoperatively?: A Randomized Controlled Trial. Am J Phys Med Rehabil 2020; 99:285-290. [PMID: 32195715 DOI: 10.1097/phm.0000000000001317] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVE Distal radius fractures in the older population significantly impair grip strength. The aim of the study was to investigate whether a hand strength focused exercise program during the period of immobilization for nonoperatively managed distal radius fractures in this population improved grip strength and quality of life. DESIGN This is a single-center randomized controlled trial with concealed allocation, assessor blinding, and intention-to-treat analysis. Fifty-two patients older than 60 yrs who experienced distal radius fractures managed nonoperatively with cast immobilization. The intervention group (n = 26) received a home hand strength-focused exercise program from 2 and 6 wks after injury while immobilized in a full short arm cast. The control group (n = 26) performed finger range of motion exercises as per protocol. Primary outcome was grip strength ratio of injured arm compared with uninjured arm. Secondary outcome included functional scores of the 11-item shortened version of the Disabilities of the Arm, Shoulder and Hand. Outcomes were measured at 2, 6, and 12 wks after injury. RESULTS The intervention group significantly improved grip strength ratio at both 6 and 12 wks (6 wks: 40% vs 25%, P = 0.0044, and 12 wks: 81% vs 51%, P = 0.0035). The intervention group improved the 11-item Disabilities of the Arm, Shoulder and Hand score at 12 wks; however, this was not statistically significant (25 vs 40, P = 0.066). CONCLUSIONS A hand strength-focused exercise program for elderly patients with distal radius fractures while immobilized significantly improved grip strength.
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Affiliation(s)
- Antony Nguyen
- From the Liverpool Hospital, Liverpool, New South Wales, Australia (AN); Concord Hospital, Sydney, New South Wales, Australia (AN, MV, GB, DM, MW, MK, JS); and Royal North Shore Hospital, Sydney, New South Wales, Australia (GB, MK)
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Schmidt I. Functional Outcomes After Salvage Procedures for Wrist Trauma and Arthritis (Four-Corner Fusion, Proximal Row Carpectomy, Total Wrist Arthroplasty, Total Wrist Fusion, Wrist Denervation): A Review of Literature. Open Orthop J 2019. [DOI: 10.2174/1874325001913010217] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/09/2023] Open
Abstract
Background:
Several salvage procedures for the arthritically destroyed wrist exist. Each of these has advantages as well as disadvantages.
Aims:
The aim of this article is to give practical insights for the clinician on: (1) biomechanical and clinical fundamentals of normal and impaired wrist motion; (2) difficulties in assessment of postoperative outcome between measured motion by the surgeon and self-reported outcome by the patient; (3) indications for each procedure; and (4) differences in functional outcome between partial and complete motion-preserving as well as complete motion-restricting salvage procedures.
Methods:
In trend, Proximal Row Carpectomy (PRC) is slightly superior over four-corner fusion (4CF) in terms of functional outcome, but the methodology-related postoperative motion is decreased for both procedures. Furthermore, PRC is easier to perform, needs lower costs, and has fewer complications than 4CF. Total Wrist Arthroplasty (TWA) has the advantage compared to PRC and 4CF that the preoperative motion values are preserved, but it is limited by decreased load-bearing capacity for the wrist. Total Wrist Fusion (TWF) is associated with a higher load-bearing capacity for the wrist than TWA, but it is limited for carrying out essential activities of daily living. Both PRC and 4CF can be combined primarily by wrist denervation. Wrist denervation alone does not impair the movement of the wrist.
Results and Conclusion:
Salvage procedures for the arthritically destroyed wrist should be detected regarding patients age- and gender-related claims in work and leisure. Not all of them can be successfully re-employed in their original occupations associated with high load-bearing conditions.
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What Is the Effect of Vitamin C on Finger Stiffness After Distal Radius Fracture? A Double-blind, Placebo-controlled Randomized Trial. Clin Orthop Relat Res 2019; 477:2278-2286. [PMID: 32142501 PMCID: PMC6999927 DOI: 10.1097/corr.0000000000000807] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND It is proposed that vitamin C administration can reduce disproportionate pain and stiffness after distal radius fracture; however, randomized trials that tested this hypothesis have had inconsistent results. QUESTIONS/PURPOSES (1) Is administering vitamin C after distal radius fracture associated with better ROM, patient-reported upper extremity function, and pain scores? (2) What factors are associated with post-fracture finger stiffness and worse upper extremity function? METHODS This is a double-blind, randomized, placebo-controlled, noncrossover study. Between August 2014 and July 2017, we approached 204 consecutive patients, of which 195 were eligible, and 134 chose to participate. Participants were randomized to receive once-daily 500 mg vitamin C (67 participants) or placebo (67 participants) within 2 weeks after distal radius fracture. All patients received usual care at the discretion of their surgeon. The mean age of participants was 49 ± 17 years, 99 patients (74%) were women, and 83 (62%) were treated nonoperatively. The primary outcome was the distance between the fingertip and distal palmar crease 6 weeks after fracture. This measure is easy to obtain and previously has been shown to correlate with aggregate ROM of all finger joints. The secondary outcomes were total active finger motion, total active thumb motion, upper extremity-specific limitations, and pain intensity.An a priori power analysis suggested 126 patients would provide 80% power to detect a difference of 2 cm (SD 4.0) fingertip distance to palmar crease with α set at 0.05 using a two-tailed Student's t-test. Accounting for 5% lost to followup, we included 134 patients.All analyses were intention-to-treat. Ten participants of the intervention group and five of the placebo group were lost to followup. Their missing data were addressed by multiple imputation, after which we performed linear regression analysis for our outcome variables. RESULTS Administration of vitamin C was not associated with ROM, function, or pain scores at 6 weeks (distance to palmar crease: β -0.23; 95% CI -1.7 to 1.2; p = 0.754; finger ROM: β 4.9; 95% CI, -40 to 50; p = 0.829; thumb ROM: β 0.98; 95% CI, -18 to 20; p = 0.918, Patient-Reported Outcomes Measurement Information System [PROMIS] score: β 0.32; 95% CI, -2.6 to 3.2; p = 0.828; pain score: β -0.62; 95% CI, -0.62 to 0.89; p = 0.729) nor at 6 months (PROMIS score: β -0.21; 95% CI, -3.7 to 3.3; p = 0.904; pain score: β 0.31; 95% CI, -0.74 to 1.4; p = 0.559). At 6 weeks, we found that more finger stiffness was mildly associated with greater age (β -1.5; 95% CI, -2.8 to -0.083; p = 0.038). Thumb stiffness was mildly associated with greater age (β -0.72; 95% CI, -1.3 to -0.18; p = 0.009) and strongly associated with operative treatment (β -32; 95% CI, -50 to -13; p = 0.001). Greater pain interference was modestly associated with greater functional limitations at 6 weeks (β -0.32; 95% CI, -0.52 to -0.12; p = 0.002) and 6 months (β -0.36; 95% CI, -0.60 to -0.11; p = 0.004). CONCLUSIONS Vitamin C does not seem to facilitate recovery after distal radius fracture, but amelioration of maladaptation to nociception (pain interference) merits greater attention. LEVEL OF EVIDENCE Level I, therapeutic study.
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Incidence of and Risk Factors for Complex Regional Pain Syndrome Type 1 after Surgery for Distal Radius Fractures: A Population-based Study. Sci Rep 2019; 9:4871. [PMID: 30890732 PMCID: PMC6425010 DOI: 10.1038/s41598-019-41152-x] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2018] [Accepted: 02/28/2019] [Indexed: 12/14/2022] Open
Abstract
This study aimed to evaluate the incidence rates of and risk factors for complex regional pain syndrome type 1 (CRPS-1) after surgery for distal radius fractures (DRFs). Using data from January 2007 to December 2014, we analysed the data from the Korean Health Insurance Review and Assessment (HIRA) service. After extracting the data of patients aged ≥18 years whose diagnostic and operation codes for DRFs were entered into the HIRA database, we analysed the incidence rates of and risk factors for CRPS-1. From 2007 to 2014, 172,194 DRFs were treated surgically. Within 1 year postoperatively, 1,103 CRPS-1 cases were diagnosed, with an incidence of 0.64%. On univariate and multivariate analyses, the risk factors that significantly correlated with the incidence of CRPS-1 included female sex, rheumatoid arthritis, open reduction, open fracture, and accompanying ulnar fracture, whereas old age, psychiatric disease, and external fixation were not statistically significant. The incidence of CRPS-1 after surgery for DRF was very low (0.64%) in South Korea. Careful monitoring is necessary for patients with complex fractures and rheumatoid arthritis who are at increased risk of developing CRPS-1.
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