Background: There was strong association with chondral lesions and meniscal tears. Generally, we know little about this condition. 2021 Aug 21;33(1):26. doi: 10.1186/s43019-021-00110-6. However, the authors did not report whether there were any other patients with symptomatic instability. Bookshelf 2022 Nov 24. doi: 10.1007/s00402-022-04659-z. official website and that any information you provide is encrypted On physical exam, the Lachman test for ACL instability is negative with an ACL ganglion. Instrumental treatment. ACL mucoid degeneration is an uncommon pathological condition; the pathogenesis, prevalence, and association with other intra-articular knee structural damage are still poorly understood. Loss to follow up was not mentioned in the other five studies [3, 6, 15, 17, 19]. The aetiology of MDACL is not fully understood, hence, there are multiple theories on this. Only three studies mentioned failed conservative treatment as an inclusion criterion [14, 15, 18]. Dietary management and various treatments Scanning and diagnostic . and transmitted securely. Unauthorized use of these marks is strictly prohibited. Mucoid degeneration of the anterior cruciate ligament. Mucoid degeneration is characterized by an increase in the mucoid ground substance in the connective tissue containing glycoprotein and mucoprotein [ 4 ]. Orthop Traumatol Surg Res. An official website of the United States government. Lintz F, Pujol N, Dejour D, Boisrenoult P, Beaufils P. Orthop Traumatol Surg Res. Knee Surg Sports Traumatol Arthrosc. Ligaments are very tough, fibrous tissue structures. A positive Lachman test and a negative pivot shift were noted after surgery in all cases. 2 ). mucoid degeneration acl symptoms. Epub 2021 Mar 8. J Orthop. Postoperative follow-up included standard radiography and dynamic examination, measuring laxity with a Telos device. Postoperative pain relief was reported in seven studies. Correspondence to in 1999 [ 1 ]. 2022 Nov 24. doi: 10.1007/s00402-022-04659-z. in 1999 [1]. The minimum follow-up was 3 years. The pathogenesis remains controversial. What Is Mucoid Degeneration of the ACL? 2011. Arthroscopy. The appearance can mimic acute or chronic interstitial partial tears of the ACL. The anterior cruciate ligament (ACL) is the most commonly injured of the major knee ligaments. They reported that a biopsy indicated mucoid degeneration and a relief of symptoms could be obtained through arthroscopic partial resection of the ligament. The site is secure. It may lead to knee pain. Check for errors and try again. J Sports Med Phys Fitness 48(4):483487, PubMed Mucoid degeneration of the ACL is suspected when an apparently thickened and ill-defined ligament with increased signal intensity on all sequences in MRI is identified in a patient with physically intact ligament and no obvious trauma history. Read more, Physiopedia 2023 | Physiopedia is a registered charity in the UK, no. Mucoid degeneration (MD) of the anterior cruciate ligament (ACL) is a benign knee pathology, which is often indicated for surgical treatment if symptomatic. Clipboard, Search History, and several other advanced features are temporarily unavailable. Anterior Cruciate Ligament, is an important structure of the knee joint. J Knee Surg. Learn how we can help 704 views Reviewed >2 years ago Thank Physiopedia is not a substitute for professional advice or expert medical services from a qualified healthcare provider. Disclaimer. Partial resection of the anterior cruciate ligament was done in seven cases and a complete resection in 18 cases. Tamer Sweed. Before Anterior cruciate ligament mucoid degeneration: a review of the literature and management guidelines. The site is secure. CAS Mucoid degeneration of the anterior cruciate ligament: a case report. Complete resection of the ACL without ACL reconstruction is a reliable treatment for symptomatic cases of mucoid degenerated ACL. The extracted data were heterogeneous in terms of outcome assessment. Careers. All nine included studies utilized MRI of the knee to establish a radiological diagnosis as an inclusion criterion. Arthroscopic debridement may help relieve the anterior knee pain. 42 Mucoid degeneration of the anterior cruciate ligament with erosion of the lateral femoral condyle P. Melloni, R. Valls, M. Yuguero, A. Saez Medicine Knee Surg Sports Traumatol Arthrosc 21(3):658663. The aim of this study was to detail the clinical, radiological, arthroscopic, and pathological findings of mucoid degeneration of the anterior cruciate ligament and report the clinical outcomes following arthroscopic treatment. Typically patients present with knee pain or restricted movement, although often other potential causes for the patient's symptoms are found. The extracted data were assessed for meta-analysis. Its signal is increased on all sequences. . Every time when patient flexes the knee, thickened ACL impinges over posterior cruciate ligament (PCL) in the knee, causing knee pain and limited motion. Characteristic: "celery stalk" appearance. PubMed Mucoid degeneration of the anterior cruciate ligament: MRI, clinical, intraoperative, and histological findings. MeSH With cruciate ligament ganglia, intact ACL fibers can often be visualized coursing through or around the cyst. Mucoid degeneration of the ACL is a rare cause of knee pain.1-8) This lesion of the ACL was first reported by Kumar et al.3) in 1999. The prevalence of mucoid degeneration of the ACL has been reported to be 0.43% [ 5 ]. Thirteen patients were treated with complete ACL resection for symptomatic MD of the ACL from 2006-2016. 2011 Jun;25(6):650-2. (A) Bulging of the hypertrophied anterior cruciate ligament. Kim TH, Lee DH, Lee SH, Kim JM, Kim CW, Bin SI. Physical therapy typically begins 7-10 days after the procedure. Int J Curr Res Aca Rev 4(11):1824 http://www.ijcrar.com/abstractview.php?ID=228&vol=4-11-2016&SNo=3, Kim TH, Lee DH, Lee SH, Kim JM, Kim CW, Bin SI (2008) Arthroscopic treatment of mucoid hypertrophy of the anterior cruciate ligament. The ligament is mainly responsible for restraining anterior translation of knee. Online ahead of print. government site. In contrast to the tear, mucoid degeneration of the ACL characteristically does not cause knee instability [20, 21, 22]. Slim K, Nini E, Forestier D, Kwiatkowski F, Panis Y, Chipponi J (2003) Methodological index for non-randomized studies (MINORS): development and validation of a new instrument. Later studies reported that changes consist of mucoid Results degeneration, neovascularisation, and tendon sheath hyper- Nineteen patients met the inclusion criteria and were inclu- trophy. I have multiple issues - spondylolisthesis in L4/L5 and L5/S1, osteopenia and osteoarthritis. Instrumental treatment. Epub 2021 Nov 24. official website and that any information you provide is encrypted just over two decades ago [], the interest in this condition has quickly gathered pace in the orthopaedic community.Little is known about this condition that affects 1.8-5.3% of the population as per magnetic resonance imaging (MRI) diagnosis [2, 3]. We herein describe a case of PCL mucoid degeneration presented with secondary ACL . Sasaki R, Nagashima M, Takeshima K, Otani T, Okada Y, Aida S, Ishii K. J Int Med Res. 2010 Jun;96(4):400-6. doi: 10.1016/j.otsr.2010.02.008. https://doi.org/10.1186/s43019-021-00110-6, DOI: https://doi.org/10.1186/s43019-021-00110-6. Would you like email updates of new search results? Arthroscopic management of mucoid degeneration of anterior cruciate ligament. . GG and AM interpreted the results and reviewed the manuscript. 2022 Oct 23;34(1):40. doi: 10.1186/s43019-022-00169-9. Conclusion: 1. Would you like email updates of new search results? Preoperative magnetic resonance imaging (MRI), Fig. -, Hsu CJ, Wang SC, Fong YC, Huang CY, Chiang IP, Hsu HC. 8600 Rockville Pike Disclaimer. MM and A performed the literature search, and data analysis. 2008;24(6):642649. Mucoid degeneration of ACL Justamom21 Feb 17, 2023 7:27 AM Among other conditions - osteoarthritis, osteopenia, spondylolisthesis- an MRI report showed "severe mucoid degeneration of the ACL" in my left knee. The .gov means its official. The aim of this study was to detail the clinical, radiological, arthroscopic, and pathological findings of mucoid degeneration of the anterior cruciate ligament and report the clinical outcomes following arthroscopic treatment. Answer (1 of 2): Most of the time mucoid degenrative changes in the ACL does not cause any problemonly if u have sign of ACL instability or the bending of the knee is reduced you may need a arthroscopic evaluation usually u may skip without ACL reconstruction but some of us will need AcL recons. -, Fealy S, Kenter K, Dines JS, Warren RF. Arthroscopic debridement of the anterior cruciate ligament (ACL) results in satisfactory pain relief and improvement in knee outcome scores. Symptomatic ACL mucoid degeneration in middle-age athletes. National Library of Medicine MDACL is differentiated from synovial cysts of the anterior cruciate ligament (ACL) where, in MDACL, mucoid tissue intermingles within ACL fibres and is not contained within a cyst [3]. http://www.crd.york.ac.uk/PROSPERO/display_record.php?ID=CRD42018087782. 2021 Sep;50(9):1837-1843. doi: 10.1007/s00256-021-03750-7. PROSPERO. reported the largest percentage of patients (27.5%) with a positive pivot test. Mucoid degeneration,: like degenerative arthritis of a joint, generally occurs as a results of aging. These appearances must be differentiated from mucoid degeneration of the intact ACL. We report a case of mucoid degeneration of the anterior cruciate ligament (ACL). Recent studies have reported that the prevalence of ACL mucoid degeneration is approximately 2-14% [20, 23, 24, 25]. No treatment is usually required. Arthroscopy. A June 2018 MRI of the cervical spine found multilevel degenerative changes of the cervical spine, most pronounced at 6-7 and small disc herniations at 5-6 and C4-5, with slight interval progression at 5-6. . Postoperative Lachman test was positive in 40% of patients, and 6% of patients had symptomatic instability. 2022 Apr 11;31:67-71. doi: 10.1016/j.jor.2022.04.004. Sagittal T2-weighted MRI view showing intact anterior, Fig. Indian J Orthop 48(2):197202. 2018. http://journals.sagepub.com/doi/10.1177/2325967118786930, Pandey V, Suman C, Sharma S, Rao SP, Kiran Acharya K, Sambaji C (2014) Mucoid degeneration of the anterior cruciate ligament: management and outcome. Not really known: Mucoid degeneration of the ACL is seen most commonly in adults (35-55 years of age). Google Scholar, Lintz F, Pujol N, Boisrenoult P, Bargoin K, Beaufils P, Dejour D (2011) Anterior cruciate ligament mucoid degeneration: a review of the literature and management guidelines. Bookshelf Does Femoral Intercondylar Notch Volume Differ in Anterior Cruciate Ligament-Injured Adult Patients Compared to the Uninjured? Mucinous material within the substance of ACL produces pain and limited motion in the knee. Reeducation. I get PT and acupuncture, have had several epidural injections, and am trying hard to avoid osteoporosis meds (was on bisphosphonates for many years many years ago) as well as spinal fusion. ACL tears don't heal as such. Kwee RM, Hafezi-Nejad N, Roemer FW, Zikria BA, Hunter DJ, Guermazi A, Demehri S. Association of Mucoid Degeneration of the Anterior Cruciate Ligament at MR Imaging with Medial Tibiofemoral Osteoarthritis Progression at Radiography: Data from the Osteoarthritis Initiative. Eight patients (72.7%, n=8) reported an improvement of knee instability, while three patients (27.3%, n=3) experienced an unchanged knee stability. Epub 2013 Aug 27. All rights reserved. (100%). Radiologic findings associated with mucoid degeneration of the anterior cruciate ligament. What is Anterior Cruciate Ligament Mucoid Degeneration? 6. Disclaimer. Anatomically, it is arranged in a crossed pattern with the Posterior Cruciate Ligament, forming an 'X', therefore, it is also known as cruciform ligament. Google Scholar, Cha JR, Lee CC, Cho SD, Youm YS, Jung KH (2013) Symptomatic mucoid degeneration of the anterior cruciate ligament. Sweed T, Mussa M, El-Bakoury A, Geutjens G, Metcalfe A. Knee Surg Relat Res. Federal government websites often end in .gov or .mil. The ACL appears on MRI to be enlarged with cystic changes throughout, however it is intact. W B Saunders Co. (2005) ISBN:0721602703. Our study provides further evidence that arthroscopic total or partial excision of anterior cruciate ligament is a safe and effective treatment for mucoid degeneration of the anterior cruciate ligament, improving patient satisfaction and function without causing clinical instability in daily activities. 2. Unable to process the form. Imaging: Plain radiographs Skeletal Radiology. Histological diagnosis was established by tissue biopsy in all patients in five studies, with a total of 87 knees. It is commonly identified on MRI in association with other pathological findings and can be confused with partial ACL tears. Google Scholar, Chudasama CH, Chudasama VC, Prabhakar MM (2012) Arthroscopic management of mucoid degeneration of anterior cruciate ligament. Association between magnetic resonance imaging characteristics and pathological findings in entire posterior cruciate ligament with mucoid degeneration. The PubMed wordmark and PubMed logo are registered trademarks of the U.S. Department of Health and Human Services (HHS). https://doi.org/10.1007/s002560100336, Narvekar A, Gajjar S (2004) Mucoid degeneration of the anterior cruciate ligament. Demographic, radiological, and histological findings, type of surgery, and clinical pre- and postoperative data were analyzed. Lintz F, Pujol N, Boisrenoult P, Bargoin K, Beaufils P, Dejour D. Knee Surg Sports Traumatol Arthrosc. Items are scored as 0 (not reported), 1 (reported but inadequate) or 2 (reported and adequate). Unauthorized use of these marks is strictly prohibited. https://doi.org/10.4055/cios.2018.10.3.307, University Hospitals of Derby and Burton, Uttoxeter Rd, Derby, DE22 3NE, UK, Trauma and Orthopaedic Speciality Trainee, West Midlands Deanery, Birmingham Rotation, Birmingham, UK, University Hospitals Plymouth NHS Trust, Plymouth, UK, University of Alexandria, Alexandria, Egypt, University Hospital Coventry and Warwickshire, Clifford Bridge Road, Walsgrave, Coventry, CV2 2DX, UK, You can also search for this author in https://doi.org/10.4103/0019-5413.128765, Article Average postoperative International Knee Documentation Committee (IKDC) and Knee Injury and Osteoarthritis Outcome Scores (KOOS) were 71.2 (42.5 to 92.0) and 78.2 (26.4 to 99). The anterior cruciate ligament (ACL) is one of the more vital and more easily injured ligaments within our knee. 2018;4(4):875-80. Each study was scored 02 on each question, with a global ideal score of 16. What you feel (symptoms) You feel heaviness in knee joint. To our knowledge, this is the first systematic review to look into the results of the management of MDACL. 2022 Mar;14(1):76-89. doi: 10.4055/cios20163. HHS Vulnerability Disclosure, Help Accessibility Possible etiologies include: It is postulated that mucoid degeneration may be a predisposing factor in the formation of ACL ganglion cysts. Epub 2008 Apr 18. Coronal proton density-weighted magnetic resonance imaging shows a thickening of the anterior cruciate ligament. Palmer W, Bancroft L, Bonar F, Choi JA, Cotten A, Griffith JF, Robinson P, Pfirrmann CW. Arthroscopic debridement of the ACL was the intervention in eight studies, whereas Morice et al. 2023 BioMed Central Ltd unless otherwise stated. Patients and methods: 2011. -Delivered Pre-rehab care for breast cancer and thoracic cancer cases. Bone and joint imaging. Epub 2018 Aug 22. report that one patient had ACL reconstruction simultaneously after the ACL debridement. MeSH This bicentric, retrospective cohort study with an average follow-up of 6years involved 27 patients (29 knees) presenting with symptomatic ACL mucoid degeneration validated by magnetic resonance imaging (MRI). ACL mucoid degeneration is present on ~10% (range 9-12%) of 3 T MRI examinations and 2% of 1.5 T MRI examinations 6. This study concerns complete ACL resection as a treatment of mucoid degenerated ACL. Anterior cruciate ligament ganglia and mucoid degeneration: Coexistence and clinical correlation. JBR-BTR. The https:// ensures that you are connecting to the 2019 Jun;32(6):577-583. doi: 10.1055/s-0038-1660514. Shimasaki K, Yoshioka T, Kanamori A, Yamazaki M. Case Rep Orthop. 2007;90(3):1923. Post-debridement arthroscopic view showing yellowish lesion of the anterior cruciate ligament which was debrided. Epub 2011 Feb 18. Hide glossary Glossary. The site is secure. The visual analogue scale score, the International Knee Documentation Committee score, and the Tegner Lysholm Knee Score were collected preoperatively, postoperatively, and during the follow-up period. Role of ultrasound-guided decompression in management of mucoid degeneration of the anterior cruciate ligament. 1173185. Before Physiotherapy. eCollection 2022 May-Jun. 2001;17(9):E37. 8600 Rockville Pike Role of debulking mucoid ACL in unicompartmental knee arthroplasty: a prospective multicentric study. The PubMed wordmark and PubMed logo are registered trademarks of the U.S. Department of Health and Human Services (HHS). At last follow-up, the mean visual analogue scale score, International Knee Documentation Committee score, and Tegner Lysholm Knee score improved (p < 0.01). Sep 2017 - Feb 20186 months. Along with that, it also controls the internal rotation. Arthroscopic resection of ACL mucoid degeneration is effective for treating pain and flexion limitation, but at the expense of anterior laxity. 2011 Mar;25(3):262-5. 2013 Oct;99(6):693-7. doi: 10.1016/j.otsr.2013.04.010. This site needs JavaScript to work properly. Fourteen knees (48%) had limited flexion, on average 97 degrees. -Provided skilled hands on in post-op rehabilitation to various population including Head and neck cancers, Lymph edema management, Bone cancers. Coronal proton density-weighted magnetic resonance, Coronal proton density-weighted magnetic resonance imaging shows a thickening of the anterior cruciate, Sagittal proton density-weighted magnetic resonance, Sagittal proton density-weighted magnetic resonance image shows ill-defined anterior cruciate ligament with increased, Coronal T2 weighted fat suppressed fast spin echo image showed complex anterior cruciate, Pre-debridement arthroscopic view showing yellowish. Mucoid Degeneration of the Anterior Cruciate Ligament: Characterization of Natural History, Femoral Notch Width Index, and Patient Reported Outcome Measures. and Ventura et al. (B) Partial resection, MeSH A systematic literature search in the databases MEDLINE, Embase, Google Scholar, Cochrane, ISI web of science and Scopus was performed through July 2020 by three independent reviewers. Resnick D, Kransdorf MJ. Management of mucoid degeneration of the anterior cruciate ligament: a systematic review, https://doi.org/10.1186/s43019-021-00110-6, https://doi.org/10.1302/0301-620X.81B2.0810304, https://doi.org/10.1007/s00167-011-1433-0, https://doi.org/10.2214/ajr.182.5.1821283, https://doi.org/10.1007/s00167-012-1991-9, https://doi.org/10.1016/j.arthro.2003.11.030, https://doi.org/10.1016/j.jclinepi.2009.06.005, http://www.crd.york.ac.uk/PROSPERO/display_record.php?ID=CRD42018087782, https://doi.org/10.1046/j.1445-2197.2003.02748.x, http://journals.sagepub.com/doi/10.1177/2325967118786930, http://www.ijcrar.com/abstractview.php?ID=228&vol=4-11-2016&SNo=3, https://doi.org/10.1016/j.arthro.2008.02.004, https://doi.org/10.1016/j.jajs.2015.12.001, https://doi.org/10.4055/cios.2018.10.3.307, http://creativecommons.org/licenses/by/4.0/, http://creativecommons.org/publicdomain/zero/1.0/. The https:// ensures that you are connecting to the Federal government websites often end in .gov or .mil. Exclusion criteria were (1) case reports, literature reviews and conference abstracts and (2) studies written in languages other than English. Careers. in 1999 [ 1 ]. Unauthorized use of these marks is strictly prohibited. Before Noninfiltrating synovial cysts of the ACL were excluded. The purpose of this study was to investigate the outcomes of management of mucoid degeneration of the anterior cruciate ligament (MDACL) by performing a systematic review of methods of treatment that have been reported. The retrospective study by Kim et al. . HHS Vulnerability Disclosure, Help reported total resection of the ACL in 68% of patients: one young patient had disabling instability and subsequent ACL reconstruction. Unable to load your collection due to an error, Unable to load your delegates due to an error. eCollection 2021. National Library of Medicine The cause is not really known, but patients usually do not complain of instability. Knee Surgery, Sports Traumatology, Arthroscopy. Lintz F, Pujol N, Boisrenoult P, Bargoin K, Beaufils P, Dejour D. Knee Surg Sports Traumatol Arthrosc. An official website of the United States government. Epidemiology The likelihood of mucoid change within ligaments and tendons increases with age 1. [Diagnosis and treatment of anterior cruciate ligament cysts]. Mucoid degeneration of both ACL and PCL. Second, methodological quality assessment showed that three studies had low methodological quality. Therefore, indications for ACL resection must be carefully selected. Accessibility The mean follow up ranged from 13 to 72months. Anterior cruciate ligament mucoid degeneration: selecting the best treatment option. Google Scholar, Salvati F, Rossi F, Limbucci N, Pistoia ML, Barile A, Masciocchi C (2008) Mucoid metaplastic-degeneration of anterior cruciate ligament. Arthroscopy. The prevalence of MDACL on magnetic resonance imaging (MRI) ranges from 1.8 to 5.3% [4, 5]. A 48-year-old-male patient presented with knee pain and limitation of motion. 2011 Aug;19(8):1326-33. doi: 10.1007/s00167-011-1433-0. Sagittal proton density-weighted magnetic resonance image shows ill-defined anterior cruciate ligament with increased signal intensity and a celery stalk appearance of intact fibers. Arthroscopy 24(6):642649. The patient presented with extension block of the knee. had the largest number of patients (91) with a mean age of 61 years, which was the oldest study population amongst the nine studies [16]. 2011;19(3):408411. Keywords: That is usually the journal article where the information was first stated. Epub 2008 Dec 17. Conclusions Our study provides further evidence that arthroscopic total or partial excision of anterior cruciate ligament is a safe and effective treatment for mucoid degeneration of the anterior . Mucoid cystic degeneration of the cruciate ligament. TS designed the project, literature search and wrote the manuscript. This study hypothesized that arthroscopic debridement of MDACL would provide patients with improvement in pain, range of movement and functional outcome scores. Individuals with mucoid degeneration of the ACL were excluded. Anterior cruciate ligament ganglia and mucoid degeneration: coexistence and clinical correlation. (Table 3). #radiologycpd #medicalimaging #imaging #radcme #rheumatology #arthritis #rheumatologist #orthopaedic #painphysician #physiotherapy #sportsmed #orthopaedic #mskmri. The authors declare that they have no competing interests. volume33, Articlenumber:26 (2021) 2004 Feb;20(2):141-6. doi: 10.1016/j.arthro.2003.11.030. This was lowest in the study of Cha et al. However, in most studies a proportion of patients simultaneously underwent other arthroscopic procedures for associated pathological knee conditions (44% meniscectomies in the study of Cha et al.). The review was performed according to the Preferred Reporting Items for Systematic Reviews and Meta-analyses (PRISMA) guidelines and registered in the PROSPERO database (CRD42018087782). Sometimes, it is mislead as ACL tear on MRI findings, hence requires probing and histopathology for definitive diagnosis. PMC ACL debridement was partial in all studies except for those by Lintz et al. Mucoid degeneration of the anterior cruciate ligament. Mucoid degeneration of the ACL is suspected when an apparently thickened and ill-defined ligament with increased signal intensity on all sequences in MRI is identified in a patient with physically intact ligament and no obvious trauma history. This infiltrating lesion is included in the mucoid pathology of the intercondylar fossa. government site. Three reviewers (an experienced librarian and two of the authors) independently searched these databases. -, Hensen JJ, Coerkamp EG, Bloem JL, De Schepper AM. No reconstruction was performed at the same time. 3. When refering to evidence in academic writing, you should always try to reference the primary (original) source. A long duration of non-specific knee pain in a patient should be evaluated with MRI. Mucoid degenerated anterior cruciate ligament (ACL) managed by arthroscopic ACL reconstruction: A case series. All studies focused on the outcome of arthroscopic debridement of MDACL, with no studies on conservative treatment. Clipboard, Search History, and several other advanced features are temporarily unavailable. Would you like email updates of new search results? J Chin Med Assoc. Kumar A, Bickerstaff DR, Grimwood JS, Suvarna SK (1999) Mucoid cystic degeneration of the cruciate ligament. Unlike meniscal tears and chondral defects, the mucoid degeneration of the anterior cruciate ligament (ACL) is a rare cause of knee pain and there have been no case reports of mucoid degeneration of both the ACL and the posterior cruciate ligament (PCL). Treatment modalities for ACL ganglion cyst include arthroscopic excision or puncture, CT scan, and ultrasound-guided aspiration [25-26]. 5. Epub 2010 May 8. Cho SD, Youm YS, Lee CC et-al. Radiologic findings associated with mucoid degeneration of the anterior cruciate ligament. Am J Roentgenol 182(5):12831287. Several authors have identified this condition, described their experiences, and suggested their own guidelines for management. Hypothesis: Arthroscopic findings. An official website of the United States government. Meniscectomy was undertaken in 11 cases (41%). The .gov means its official. Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. MDACL is not uncommon, however, it is rarely symptomatic [4, 5]. the degree of laxity, and the patient's age and willingness to pursue vigorous postoperative physical therapy are other major determinants. The rate of simultaneous meniscectomy ranged from 13 to 44%. Five studies demonstrated improved postoperative functional outcome scores compared to preoperative scores [6, 14, 16, 18, 19]. Twelve partial and 17 total resections were performed. Clinical outcome was reported using a variety of scores (the Lysholm and International Knee Documentation Committee (IKDC) score, the Knee Injury and Osteoarthritis Outcome Score (KOOS) and the visual analogue scale (VAS) score) in the different studies; these are summarized in Table 4.