varus stress test sensitivity and specificity

This site needs JavaScript to work properly. This is not surprising given the complicated nature of the technique and the difficulty in controlling the amount and direction of forces across testers. The clinician hold the patient's ankle with one hand, while the other hand is on the lateral condyle of the femur. Churchill Livingstone, 2002. Sensitivity and specificity rely on a single threshold for classifying a test result as positive or negative. Sensitivity: 25% . Current Orthopaedics. OTY4NzkyOGEwY2VjNzA3NjZiZWFkZmRlNjgyOGUwMGYxNDhkNjlhNDBhZmVi The final study by Sae-Jung et al24 compared a modified version to McMurray's added axial compression, similar to that applied by Kurosaka et al6 but without added valgus or varus stress. Although the support of a clinical study is needed in order to make a definite conclusion, the dial test is probably not reliable in the presence of medial instability, Of the studies evaluated in this review, six used the original description of the McMurray's test4,6,20,2224. So, little is known about the validity of this test. $ is the truncation character. (2008) A meta-analysis examining clinical test utilities for assessing meniscal injury. followers. Evidence. MjI0NTIxNTI4MWM3YmNjNGMwMDU2Mjk4ZWM1MzcyMDNkZTAyYmNhMDljZTU1 Purpose: The Varus Stress Test is used to assess the integrity of the LCL or lateral collateral ligament of the knee. A prospective evaluation of a test for lateral meniscal tears. Evans et al23 compared a senior examiner with over 10 years experience to a medical student who had recently been taught the technique whereas Karachalios et al21 compared two experienced orthopaedic surgeons with two inexperienced residents. The https:// ensures that you are connecting to the Download scientific diagram | AP and lateral radiographic images of a SE-4 fracture consisting of a spiral or oblique fracture laterally with a combination of an avulsion fracture medially. However, if positive findings are grouped with positive findings from other tests, such as joint line tenderness and Apley's test, the test may be more valid. NDkyMTlmYzMyYjdlN2RlZTQ2MjFiMjc5NGRhOWNjYWI3NTliM2NhYzM3YWNj Consequently, it is likely that the accuracy of meniscal testing demonstrated by this study is artificially high compared to studies with a wider inclusion criteria. The LCL acts as a secondary stabilizer to anterior and posterior tibial translation when the cruciate ligaments are torn. NTc3ODRiOTRjOGU4N2ExOGU2NDEzYWVjZmNiMTQ1N2FjM2U4NjVmMzhlMzRi OGNkMmFkZGY0YjIxNzkxN2RkOTg3YzgzMTdiYjY1OGMxMzA2NThmZjIxNGNi The technical storage or access that is used exclusively for statistical purposes. The goal of the study was to evaluate 3 common manual tests (Buell, Dananberg, and Jack tests) for assessing first metatarsophalangeal joint (MPJ) mobility and determining the normal values needed to detect FHL . The reported incidence of ACL sprains and tears in the knee injuries. [1] It is one of 4 critical ligaments involved in stabilizing the knee joint. It is important to take this into consideration when analyzing test results of studies that have used more than one examiner. In testing the accuracy of a clinical test like the McMurray's test, ideally the study participants should consist of individuals who would be likely to undergo the test in clinical practice and who have a reasonable chance of having the condition16. Fibular Collateral Ligament: Varus Stress Radiographic Analysis Using 3 Different Clinical Techniques. ZmFjMDhjZmYyOWRiNWU2YjhhMWNhYjFiNTU5YTI5ODM3MTY1ODYwYzc2NmFi Level of evidence: M2ZmZDZjMzRlNTA5MjMyYzZkMGVlMDJkNzM3ODllMjM3ODFmYWJhZjAwYzZh Referred from GP/A&E with suspected cruciate ligament or meniscal pathology. (2007)Physical examination tests for assessing a torn meniscus in the knee: a systematic review with meta-analysis. N2MzZTc5OGFkMzAwZTZmM2Y1YWFiZTJjMjM3OGNkMmNkM2E4OTYzZWFkMjA5 Physical examination consisted of general elbow examination and specific examination of the distal biceps based on literature. 1173185. Examining diagnostic tests: An evidence-based perspective. Based on the STARD scoring of each paper, it is possible to make a qualitative assessment about the methodological quality. Test (b): Disease Status test (b) results *Positive Negative Present 18 7 25 absent 2 73 75 total 20 80 100 Calculate the sensitivity, specificity, positive predictive values, and negative predictive values for each test. NWI4Njg2Y2FiM2QzZGFjNjA2MjRhYTcxMTY2NmVkZmYzNTMwZDdiNTk4YTcy The studies by Akseki et al3, Corea et al4, and Manzotti et al20 revealed negative likelihood ratios that are slightly lower than the other studies. This is a relatively new tool and has not been subjected to an analysis of its reliability at this time; however, the tool does provide a consistent framework on which to base the analysis of diagnostic studies. Collectively, these studies indicate that there is little consensus in the reported measures of validity of the McMurray's test and that this is mostly due to limitations in the methodological quality of the studies that were assessed. Sensitivity: the ability of a test to correctly identify patients with a disease. A control group was composed of patients with an MRI and intact ACL and FCL. An example of this would be as follows: If the McMurray's test had a LR+ of 9.2 for a particular study, a positive McMurray's test is 9.2 times more likely to occur in patients with a meniscal tear than in those without one29. M2EwZWY0Zjg3ZDdlZTMzNDhjY2EwMzdkMmRjZmQ1M2M1OTI3ZDRiZDk0NzYx Yedlinsky, N.T. Muellner T, Weinstabl R, Schabus R, Vecsei V, Kainberger F. The diagnosis of meniscal tears in athletes: A comparison of clinical and magnetic resonance imaging investigations. YzQ2ZWY3MDkyMmRjMWVjYzY3ODhjNTExZjU4NGIzMTJjNjA3ZDA5Mzk3NTFl Future research should concentrate on building a strong methodological base incorporating large samples of consecutive patients with commonly confused pathologies. Medline and CINAHL search strategy via OVID. Before Philadelphia: Elsevier, 2016; 2121-2297. Elsevier Health Sciences, 2014. YzA0Nzk1ZjQxYjY5Mzg4MWUwNDRlODM0NDRiNzZiM2I4OWVhNTQ1YmVlMDNj The accuracy of the clinical knee examination documented by arthroscopy: A prospective study. Purpose: The MCL and LCL are tested with a valgus and varus stress, respectively, with the knee held at 30 of flexion to isolate the collateral ligaments. Arthrosc Tech. Mariani PP, Adriani E, Maresca G, Mazzola CG. Posterior drawer test Posterior sag test (godfrey test) Quadriceps active test Dial test Varus/valgus stress . Does the patient have a torn meniscus of ligament of the knee? The test is performed at 0 and 20-30, so the knee joint is in the closed packed position. Rose NE, Gold SM. However, this provisional diagnosis was also based on other symptoms that one might consider could be associated with pathologies other than meniscal tears, e.g., pain, recurrent effusion, muscle wasting, and instability. In extension, the posterior capsule and cruciate ligaments act as secondary restraints for varus stress. 1, This website is powered by SportsEngine's. Saunders Elsevier. These authors also observed that the studies on these new tests have only been subjected to scientific scrutiny on one occasion and further research is required on these tests. It seems logical that those studies that include both pain and a click should have higher diagnostic value as compared to studies that just use one sign or the other. Described a modified version (Ege's test) but no description of McMurray's. . Bossuyt PM, Reitsma JB, Bruns DE, et al. Useful tests should produce large shifts in probability once the result of the test is known. The inclusion of patients with multiple pathologies is likely to lessen the diagnostic accuracy of a test; however, this would reflect actual clinical practice6,18. The acute tears frequently result from sports injuries where there is a twisting motion on the partially flexed, weight-bearing knee.[3]. Winters K, Tregonning R. Reliability of magnetic resonance imaging of the traumatic knee as determined by arthroscopy. Disclaimer. Kurosaka et al6 took the modification of the Medial-Lateral Grind test further by comparing the McMurray's test to a pivot shift test that not only had a component of varus/valgus stress but also included a component of axial loading. The external validity of a study is largely dependent on the study population. Harilainen A. If you believe Wordfence should be allowing you access to this site, please let them know using the steps below so they can investigate why this is happening. Malanga GA, Andrus S, Nadler SF, McLean J. Merriman L, Turner W. Assessment of the Lower Limb. If you believe that this Physiopedia article is the primary source for the information you are refering to, you can use the button below to access a related citation statement. The proportion of people who test negative and who do not have the disease or dysfunction. The IR of the tibia followed by extension, the examiner can test the entire posterior horn to the middle segment of the meniscus. Specificity: not reported. The .gov means its official. Bookshelf Jaeschke RZ, Meade MO, Guyatt GH, Keenan SP, Cook DJ. Sensitivity and specificity values infer the probability of a correct test, given the result of the reference standard11. Although six studies used multiple testers, these did not provide statistics for reliability6,1923. How to use diagnostic test articles in the intensive care unit: Diagnosing weanability using f/Vt. The final two studies20,21 limited their study population to patients suspected of meniscal injury. A recent literature review on composite testing of the diagnostic tests for the meniscus reported reasonable sensitivity and specificity when the findings of a number of tests are combined31. Akseki et al3 included consecutive patients with symptoms related to intra-articular knee pathology although how this was determined was not described. Three studies used only one tester4,5,25, and two studies did not mention how many examiners were used3,24. The technical storage or access is strictly necessary for the legitimate purpose of enabling the use of a specific service explicitly requested by the subscriber or user, or for the sole purpose of carrying out the transmission of a communication over an electronic communications network. Mariani et al30 have suggested that the differences in anatomical attachments of the two menisci contribute to these variations in sensitivity and specificity of diagnostic tests30. ZmNhYzI5Njc5MTEwZGU2NTAzYmRjNmJiODlmMmU0N2FhYzFhMDRjNjQ1YTNk I give my consent to Physiopedia to be in touch with me via email using the information I have provided in this form for the purpose of news, updates and marketing. One study used a palpable thud and/or pain23, and two studies used a palpable click and/or pain3,20. [3] McClure P,W et al. Evans et al23 concluded that examiner experience had little effect on the accuracy of the diagnosis; however, they noted that the student examiner demonstrated a significant association (p = 0.002) between the diagnosis of a medial meniscus tear and reproduction of a medial thud, while the experienced examiner demonstrated a significant association between this diagnosis and the reproduction of pain (p = 0.008) or a medial sensation (p = 0.001). 2017 Dec;33(12):2177-2181. doi: 10.1016/j.arthro.2017.06.028. It is primary restraint to varus rotation from 0-30 of knee flexion. Evans et al23 used consecutive patients on a waiting list for arthroscopy for a variety of conditions including, but not limited to, suspected meniscal tears. The test has therefore often been reported to be of limited value in current clinical practice. YmQ4NDJhMzZkOWUyMDUwNzAxN2M3ZjVhOGYyYmU0ZDVkYWUxNWM0ZGFhMTFi YzFjZGMyZmVmOTJjNWQ2NWYyNDVkNDE1OWM3Yzg5NjE2MWNhYTY1ZGZlNGYw PMC As a stand-alone test, it had a sensitivity of 78% and specificity of 67% the pain was used as the outcome measure and a sensitivity of 91% and specificity of 49% when laxity was the outcome measure. -----BEGIN REPORT----- Consecutive patients. The Journal of Manual & Manipulative Therapy. To some degree, this is achieved by sensitivity and specificity, which provide useful information for interpreting the results of diagnostic tests. While some studies have stated that greater clinical experience aids correct diagnosis3,5,19, the only current statistical evidence in this regard shows no difference between an experienced and inexperienced tester 23. However, in general, the CI limits are relatively narrow over all. Generally, the McMurray's test has relatively high specificity and low sensitivity. Blinding of the clinicians from the results of the diagnostic test was either not mentioned or not performed in all of the studies in this review except for the study by Karachalios et al21. Sensitivity figures were higher than specificity for three studies5,20,25 (Table (Table5).5). This review identified that the McMurray's test is of limited clinical value due to relatively low sensitivity, with modified tests (associated with the traditional McMurray's test) having higher diagnostic accuracy and thus these may be more useful clinically. ZTEyZjE4YTgwNjcwY2IwOWVkNmUwZDVjODFiMTExMDBhN2MyOGE5NDdhYWUz Your access to this site was blocked by Wordfence, a security provider, who protects sites from malicious activity. The ligament lies laterally and posteriorly along the joint line. eyJtZXNzYWdlIjoiMDAzMWIwNTU1ZDk0ZjIzMGU1NDkwYzhmOWYxZTk0YWI3 McMurray's test is used to determine the presence of a meniscal tear within the knee. The most sensitive test used in the diagnostics of medial meniscus lesions was the McMurray test, which showed a sensitivity of 87.5% with 52% specificity. Before Malanga GA, Andrus S, Nadler SF, McLean J. Studies were eligible for inclusion if they assessed measures of accuracy or validity of the McMurray's test or any modification of this test against a gold standard of either arthroscopy or magnetic resonance imaging (MRI) and were written in English. Sensitivity figures vary from 16%88%, while specificity figures vary from 20%98% (Table (Table5).5). 2018 Nov 1;27(6):596-600. doi: 10.1123/jsr.2016-0188. Original description. doi: 10.1016/j.eats.2018.10.007. Each test is repeated with the knee in full extension. [1]. [2] Harilainen A. The review also highlights the idea that modified versions of the test seem to be more valid than the original version. A recent meta-analysis illustrates the difference in test characteristics when performed on patients under anesthesia. When refering to evidence in academic writing, you should always try to reference the primary (original) source. Conclusions: Sae-Jung et al24 considered pain or a clicking sound to be a positive test. 4th ed. Value of the physical examination. Studies of specificity and sensitivity have demonstrated varied values as a result of poor methodological quality[7] A recent meta-analysis reports sensitivity and specificity to be 70% and 71%. Additionally, the single photon-emission CT scan is receiving a lot . Given the results of the multivariate regression in Question 1, write the regression equation associated with this study. Three of the studies in this review considered a positive test to be the reproduction of a palpable thud or click4,6,22 (Table (Table4).4). Of the 11 studies identified in this review, nine used arthroscopy as the reference standard, one used MRI, and the remaining study used both MRI and arthroscopy (Table (Table44). Anderson AF, Lipscomb AB. Consider the use of modifications of the test for improved validity. Partial Controlled Early Postoperative Weightbearing Versus Nonweightbearing After Reconstruction of the Fibular (Lateral) Collateral Ligament: A Randomized Controlled Trial and Equivalence Analysis. This is a key test to perform when assessing for posterolateral instability of the knee. These studies have hypothesized that by incorporating aspects of varus/valgus stress and/or axial loading into the original McMurray's test, there is an increase in diagnostic value3,5,6. Arthroscopy has demonstrated an accuracy between 93% and 96%12. Varus stress radiographs were determined to be more sensitive in diagnosing FCL injuries compared with MRI, with an overall sensitivity of 70% compared with 66%, respectively. Were the raters blinded to the results of the other test? One study5 performed the test after the arthroscopy and did not state if the examiner was blinded to these results. MR imaging of meniscal cysts: incidence, location, and clinical significance. In general, sensitivity figures are much lower than specificity and the CI limits are wider. Ciba M, Winkelmeyer EM, Schock J, Westfechtel S, Nolte T, Knobe M, Prescher A, Kuhl C, Truhn D, Nebelung S. Sci Rep. 2022 Jul 13;12(1):11858. doi: 10.1038/s41598-022-15787-2. Neuromusculoskeletal examination assessment: A handbook for therapists. Anterior cruciate ligament reconstruction: MR imaging findings. Diagnosis of acute knee ligament injuries: The value of stress radiography compared with clinical examination, stability, under anesthesia and arthroscopic or operative findings. Federal government websites often end in .gov or .mil. The therapist applies a varus stress at the knee while the ankle is stabilized. MGY4MmExODg4MDUwZTk2NzUzNjQ0OTMxYjkxN2QwYjQ5MmMxODdmMWU4MDdi MWU3NjBlM2FlMDU2YWM3ODA4ZGIyZTNjODFkOWU2ZDBkMGNiYzRhZjE2MGRk TP=true positive, FP=false positive, FN=false negative, TN=true negative. Inclusion in an NLM database does not imply endorsement of, or agreement with, Three independent reviewers assessed each of the papers included in the review, and an overall STARD score of methodological quality was determined for each paper. YjRkMzE0ZTk0MWM3ZmIzYWU4Mjc2ZTg2NzY5MWVlZTQwNTFlM2VjN2JkOTYy As is true of all statistics, sensitivity and specificity values are taken from a sample and represent an estimate of the true value that could be found in the population. Changing the threshold to increase sensitivity decreases specificity and vice versa. During the maneuver, the joint line is palpated both medially and laterally. Studies were also not examined where they clearly did not meet the search criteria. The STARD checklist contains 25 items that help to make a judgment about potential bias in the study and appraisal of the applicability of the findings. Journal of Orthopaedic and Sports Physical Therapy, 37(9), 541-50. ODU2Y2M1MDM5YjZiZGYwM2E5ZDEyYjk5Nzc0MTA0ZWQxYmE5MmJiMjRlYWQ2 . ZmZjN2MzNzdhZDFlZWY2OGI0YWExNTViZjA5ZDc3OTA3MTJmYTYyOGFmMGEw Normal elbow range of motion is from 0 at full extension to 140 of flexion, with a range of 30 to 130 required for Valgus instability Valgus instability arises through injuries to the MCL, specifically the AMCL. When confidence intervals are not present, the CIs were incalculable due to absence of raw data. The Valgus Test of the knee is performed with the patient lies in the supine position. This means that tests rarely have both high sensitivity and specificity. Consider reproduction of pain during the test as a positive test, not just the reproduction of a. This, along with the conclusions discussed above, suggests that the McMurray's test should be used as one of a combination of tests in the clinical setting3,22,23. Unable to load your collection due to an error, Unable to load your delegates due to an error. ZDZkZjczMGZkNzQ1OWMxZTQyNDY2ZTAzYTM5OTk2ZmQ1YjkzNDFjMDhmNzMy Please enable it to take advantage of the complete set of features! Based on MRI, overall specificity was 68%. The findings of studies testing the validity of the McMurray's test have varied widely, mostly due to variations in the size and type of the study population as well as differences in description and application of the test3. Consecutive patients awaiting elective arthroscopy for suspected meniscal or other conditions based on history and physical examination. Kennedy MI, Akamefula R, DePhillipo NN, Logan CA, Peebles L, LaPrade RF. [11] Sensitivity: 25% . Original Editors - Dorien Scheirs, Joris De Pot, Top Contributors - Saimat Lachinova, Admin, Joris De Pot, Dorien Scheirs, Kim Jackson, Rachael Lowe, Leana Louw, Oyemi Sillo, WikiSysop, Tony Lowe, Derycker Andries, Naomi O'Reilly, George Prudden and Kai A. Sigel. Pg 791. Methodological scores on the STARD (Standards for Reporting of Diagnostic Accuracy) yielded scores from 10/25 to 20/25. The proportion of people who test positive and who have the disease or dysfunction. 2001;177(2):409413. Studies looking at diagnostic accuracy, sensitivity and specificity have demonstrated varied values. Varus stress test video provided by Clinically Relevant, Additional tests for detecting LCL injury with other knee ligaments:[6], Get Top Tips Tuesday and The Latest Physiopedia updates, The content on or accessible through Physiopedia is for informational purposes only. H Nalwad; M Agarwal; B N Muddu; M Smith; and Mr. J K Borill (2006). 133k OThmMmM0YTcwMmQwODZhZWFkYzNjNzRlOTkzZiIsInNpZ25hdHVyZSI6IjVh Therefore, this study aimed to determine the differences between varus and valgus arthritic knees in the response to conservative treatment. There are also discrepancies in the studies as to what constitutes a positive McMurray's test. While it is difficult to compare results across studies due to the differences in the tests being used, the results of this review appear to show that the modified tests have higher diagnostic value than the McMurray's test. However, only Kurosaka et al6 and Evans et al23 made it clear that the examiners were not given any details about the subject's history so that they would not be influenced by this information. Valgus and Varus Stress Test [1] Magee DJ. The possibility of there being associated intra-articular pathology (such as anterior cruciate ligament rupture) confounds results, and the unknown validity, sensitivity, and specificity of the tests make it difficult for the clinician to be confident in making a definitive diagnosis3. Use of methodological standards in diagnostic test research: Getting better but still not good. McMurrays test revisited: Evaluation of various methods of performing McMurrays test, Journal of Bone and Joint Surgery - British Volume, Vol 90-B, Issue SUPP_II, 320. https://www.physio-pedia.com/index.php?title=McMurrays_Test&oldid=322145. MTk2NGZhNDE4OTk1NmViZWEyZWM3NzcwNDY0NzA4Y2VmMzBjNjI3MjUwNzdj Study with Quizlet and memorize flashcards containing terms like Ballottement, Valgus Stress Test, Varus Stress Test and more. Obviously, if the test is performed differently and/or the interpretation of a positive test is not the same, the demonstrated accuracy of the test cannot be compared. To evaluate the diagnostic accuracy of magnetic resonance imaging and varus stress radiographs for fibular collateral ligament (FCL) tears, and compare these modalities to intraoperative findings. Fowler PJ, Lubliner JA. The preliminary nature of this tool also means that a more narrative review of the validity and accuracy of the tests has been presented. 2nd ed. Studies were included for analysis if they compared the McMurray's test with a gold standard of knee arthroscopy or magnetic resonance imaging (MRI). The incidence of LCL injuries are relatively low (6%) when compared to other knee injuries. McMurray clearly indicated that the test that bears his name is only relevant for tears in the posterior portion of the cartilage (McMurray, 1942, cited in Corea et al4). varus stress test: A test of ligament laxity, where a passive force is exerted on a joint that, in the presence of ligamentous insufficiency, would cause the lateral joint space to open, e.g., lateral collateral ligament of the knee and radial collateral ligament of the elbow. Manoeuvres assessing the posterolateral structures include the varus stress test, dial test, the posterolateral drawer, the external rotation recurvatum test, heel height test and the reverse pivot shift. Noble J, Erat K. In defence of the meniscus: A prospective study of 200 menisectomy patients. official website and that any information you provide is encrypted Studies investigating the validity of diagnostic tests such as the McMurray's compare the findings of that test with a reference (gold) standard that has demonstrated validity11. Finally, further independent research needs to compare the McMurray's test with modified tests to confirm the apparent superiority of these tests over the McMurray's test. eCollection 2022 Jun. Statistical evaluation of McMurray's test in the clinical diagnosis of meniscus injuries. Limiting the search to English language articles only may also have led to an omission of other relevant studies. Varus stress MRI in the refined assessment of the posterolateral corner of the knee joint. Painful conditions of the knee, inPain Management Vol 1.,2007. NCI CPTC Antibody Characterization Program. Consecutive patients scheduled for menisectomy; acute and chronic. True positive: the person has the disease and the test is positive. A recent evidence-based guideline for the management of acute soft tissue injuries to the knee has recommended that joint line tenderness is the only reliable clinical indicator of meniscal pathology2. Similarly, sensitivity figures ranged from 27% to 70% across the reviewed papers, generally indicating that a torn meniscus is likely to be missed in many patients; however, specificity figures (2996%) indicating that false positive tests are relatively low and that a positive test makes it likely that the patient actually does have a torn meniscus. All patients who underwent an isolated FCL or combined anterior cruciate ligament (ACL)/FCL reconstruction by a single surgeon between 2010 and 2017 with preoperative varus stress radiographs and magnetic resonance imaging (MRI) were included in this study. Confidence intervals could not be calculated32 from the data provided by these authors making it difficult to assess the accuracy of results. A recent study by Akseki et al3 reported high combined sensitivity and specificity figures (63% and 83%, respectively) and relatively narrow confidence intervals (Table (Table5).5). Symptoms related to an intra-articular knee pathology. Orthopedic Physical Assessment: 5 th Edition. The statistical measures of sensitivity, specificity, and likelihood ratios were calculated from the information provided in the studies. In: DeLee & Drez's Orthopaedic Sports Medicine. The therapist applies a valgus stress at the knee while the ankle is stabilized in slight lateral rotation either with the hand or with the leg held between the examiners arm and trunk. Irwig L, Tosteson AN, Gatsonis C, et al. Epub 2017 Aug 16.

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