Rahaman Sk, Halder Rc, Tayaba T, Mamun Mba, Islam Ms, K. Mmr, Rahman Mm, Hossain Gmj, Kamruzzaman M
Background: The Anterior Cruciate Ligament (ACL) is one of the most vital parts for sustaining knee joint stability. But, the frequency of ACL injuries is increasing alarmingly. The Peroneus Longus Tendon (PLT) is now considered to be a promising graft which is a safe and efficient alternative to other grafting methods. Methods: This was a prospective interventional study conducted at a tertiary care orthopaedic teaching hospital, during the period of March, 2019-August, 2022. The sample size for this study was 64. For statistical analysis, SPSS version 20 was used as a statistical tool. Result: There were 9(14.1%) respondents who were <18 years of age, followed by 22(34.4%) who were aged between 18-20 years, while the remaining 33(51.6%) were aged >20 years. The mean ± SD diameter (mm) was 8.3 ± 0.8, length (mm) was 8.5 ± 0.4, height (cm) was 174.1 ± 8.6, weight (kg) was 76.2 ± 13.2 and BMI was 25.0 ± 3.4. The majority of the patients (50%) were injured 1-3 months prior to the surgery. At the 6-month follow-up period, according to Lachman indicators after the surgery, 59(92.2%) of the respondents were graded 0, and the remaining 5(7.8%) were graded I. At the 12-month follow-up, the majority (93.8%) were graded 0, and 4(6.3%) graded I. At the 18-months follow-up, 59(92.2%) were graded 0 and 5(7.8%) were graded I. At the 6-month follow- up period by KT- 2000 indicators (mm) after the surgery, 57(89.1%) of the respondents were graded 0-2 mm, followed by 7(10.9%) graded 3-5 mm. At 12-months followed up the most 59(92.2%) were graded 0-2 mm and followed by 5(7.8%) graded 3-5 mm at the 18-month followed up, 57(89.1%) graded 0-2 mm, and followed by 7(10.9%) graded 3-5 mm. Conclusion: Peroneus longus tendon autograft in ACL reconstruction is a safe procedure that has a satisfactory result which was proved by the Lachman’s Test and the IKDC (KT-2000) score. PLT can prove to be an effective alternative autograft for ACL reconstruction.
{"title":"Peroneus Longus Tendon Autograft for Anterior Cruciate Ligament Reconstruction: A Safe and Effective Alternative in Nonathletic Patients","authors":"Rahaman Sk, Halder Rc, Tayaba T, Mamun Mba, Islam Ms, K. Mmr, Rahman Mm, Hossain Gmj, Kamruzzaman M","doi":"10.26502/josm.511500091","DOIUrl":"https://doi.org/10.26502/josm.511500091","url":null,"abstract":"Background: The Anterior Cruciate Ligament (ACL) is one of the most vital parts for sustaining knee joint stability. But, the frequency of ACL injuries is increasing alarmingly. The Peroneus Longus Tendon (PLT) is now considered to be a promising graft which is a safe and efficient alternative to other grafting methods. Methods: This was a prospective interventional study conducted at a tertiary care orthopaedic teaching hospital, during the period of March, 2019-August, 2022. The sample size for this study was 64. For statistical analysis, SPSS version 20 was used as a statistical tool. Result: There were 9(14.1%) respondents who were <18 years of age, followed by 22(34.4%) who were aged between 18-20 years, while the remaining 33(51.6%) were aged >20 years. The mean ± SD diameter (mm) was 8.3 ± 0.8, length (mm) was 8.5 ± 0.4, height (cm) was 174.1 ± 8.6, weight (kg) was 76.2 ± 13.2 and BMI was 25.0 ± 3.4. The majority of the patients (50%) were injured 1-3 months prior to the surgery. At the 6-month follow-up period, according to Lachman indicators after the surgery, 59(92.2%) of the respondents were graded 0, and the remaining 5(7.8%) were graded I. At the 12-month follow-up, the majority (93.8%) were graded 0, and 4(6.3%) graded I. At the 18-months follow-up, 59(92.2%) were graded 0 and 5(7.8%) were graded I. At the 6-month follow- up period by KT- 2000 indicators (mm) after the surgery, 57(89.1%) of the respondents were graded 0-2 mm, followed by 7(10.9%) graded 3-5 mm. At 12-months followed up the most 59(92.2%) were graded 0-2 mm and followed by 5(7.8%) graded 3-5 mm at the 18-month followed up, 57(89.1%) graded 0-2 mm, and followed by 7(10.9%) graded 3-5 mm. Conclusion: Peroneus longus tendon autograft in ACL reconstruction is a safe procedure that has a satisfactory result which was proved by the Lachman’s Test and the IKDC (KT-2000) score. PLT can prove to be an effective alternative autograft for ACL reconstruction.","PeriodicalId":73881,"journal":{"name":"Journal of orthopaedics and sports medicine","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69349747","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Shaila Sharmin Shahnewaz, Supriya Sarker, Tahmeed Kamal, Naima Akhter Dina
{"title":"Comparison of Musculoskeletal Manifestations Between Diabetes and Hypothyroidism Patients","authors":"Shaila Sharmin Shahnewaz, Supriya Sarker, Tahmeed Kamal, Naima Akhter Dina","doi":"10.26502/josm.511500116","DOIUrl":"https://doi.org/10.26502/josm.511500116","url":null,"abstract":"","PeriodicalId":73881,"journal":{"name":"Journal of orthopaedics and sports medicine","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69349804","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The Latarjet procedure represents a successful treatment option for patients with recurrent shoulder instability with glenoid bone loss, and its indications are expanding. One of the most important steps of the Latarjet procedure with respect to outcome is the positioning of the coracoid graft in both the oblique axial and sagittal planes. In the axial plane, a graft placed too medial can result in recurrent instability, whereas a graft placed too lateral can result in development of osteoarthritis. In the sagittal plane, the coracoid graft is ideally positioned in a subequatorial position to best restore stability as a graft positioned too inferior or too superior could result in recurrent instability. In this review, we discuss the outcomes of coracoid graft positioning with respect to surgical approach, including the open, mini-open, arthroscopically assisted, and all-arthroscopic approaches to the Latarjet procedure.
{"title":"Outcomes of Coracoid Bone Graft Positioning During the Latarjet Procedure with Respect to Surgical Approach","authors":"Gary Ulrich MD, Shariff Bishai DO, MS","doi":"10.26502/josm.511500121","DOIUrl":"https://doi.org/10.26502/josm.511500121","url":null,"abstract":"The Latarjet procedure represents a successful treatment option for patients with recurrent shoulder instability with glenoid bone loss, and its indications are expanding. One of the most important steps of the Latarjet procedure with respect to outcome is the positioning of the coracoid graft in both the oblique axial and sagittal planes. In the axial plane, a graft placed too medial can result in recurrent instability, whereas a graft placed too lateral can result in development of osteoarthritis. In the sagittal plane, the coracoid graft is ideally positioned in a subequatorial position to best restore stability as a graft positioned too inferior or too superior could result in recurrent instability. In this review, we discuss the outcomes of coracoid graft positioning with respect to surgical approach, including the open, mini-open, arthroscopically assisted, and all-arthroscopic approaches to the Latarjet procedure.","PeriodicalId":73881,"journal":{"name":"Journal of orthopaedics and sports medicine","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69349834","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-01Epub Date: 2023-09-14DOI: 10.26502/josm.511500122
Connor Diaz, Finosh G Thankam, Devendra K Agrawal
Rotator Cuff Tendinopathies (RCT) are debilitating conditions characterized by alterations in the extracellular matrix (ECM) of the shoulder tendon, resulting in pain, discomfort, and functional limitations. Specific mediators, including HIF-1α, TGF-β, MMP-9 and others have been implicated in the morphological changes observed in the tendon ECM. These mediators rely on karyopherins, a family of nuclear proteins involved in nucleo-cytoplasmic transport; however, the role of karyopherins in RCT remains understudied despite their potential role in nuclear transport mechanisms. Also, the understanding regarding the precise contributions of karyopherins in RCT holds great promise for deciphering the underlying pathophysiological mechanisms of the disease and potentially fostering the development of targeted therapeutic strategies. This article critically discusses the implications, possibilities, and perspectives of karyopherins in the pathophysiology of RCT.
{"title":"Karyopherins in the Remodeling of Extracellular Matrix: Implications in Tendon Injury.","authors":"Connor Diaz, Finosh G Thankam, Devendra K Agrawal","doi":"10.26502/josm.511500122","DOIUrl":"10.26502/josm.511500122","url":null,"abstract":"<p><p>Rotator Cuff Tendinopathies (RCT) are debilitating conditions characterized by alterations in the extracellular matrix (ECM) of the shoulder tendon, resulting in pain, discomfort, and functional limitations. Specific mediators, including HIF-1α, TGF-β, MMP-9 and others have been implicated in the morphological changes observed in the tendon ECM. These mediators rely on karyopherins, a family of nuclear proteins involved in nucleo-cytoplasmic transport; however, the role of karyopherins in RCT remains understudied despite their potential role in nuclear transport mechanisms. Also, the understanding regarding the precise contributions of karyopherins in RCT holds great promise for deciphering the underlying pathophysiological mechanisms of the disease and potentially fostering the development of targeted therapeutic strategies. This article critically discusses the implications, possibilities, and perspectives of karyopherins in the pathophysiology of RCT.</p>","PeriodicalId":73881,"journal":{"name":"Journal of orthopaedics and sports medicine","volume":"5 3","pages":"357-374"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10569131/pdf/nihms-1933456.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41222314","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Omri Zilberberg, Dr. Sheehan N MISCP MMedSE PhD, Dr. Sanocka D MD PhD
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{"title":"Dry Needling as a Treatment for Hallux Valgus – A Case Report","authors":"Omri Zilberberg, Dr. Sheehan N MISCP MMedSE PhD, Dr. Sanocka D MD PhD","doi":"10.26502/josm.511500097","DOIUrl":"https://doi.org/10.26502/josm.511500097","url":null,"abstract":",","PeriodicalId":73881,"journal":{"name":"Journal of orthopaedics and sports medicine","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69349333","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Estimation of Ivermectin Treatment Demand for the Management of Strongyloidiasis Cases Worldwide: A Systematic Review","authors":"Heron Gezahegn Gebretsadik","doi":"10.26502/josm.511500103","DOIUrl":"https://doi.org/10.26502/josm.511500103","url":null,"abstract":",","PeriodicalId":73881,"journal":{"name":"Journal of orthopaedics and sports medicine","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69349501","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
David E. Bellin, Damien MY Tam, Gordon Cheung, Emannual Wong
There is considerable evidence to support the importance of cervicogenic spinal dysfunction in musculoskeletal complaints, and the development of atypical symptoms including dizziness, dysphagia, angina, and visual disturbances. However, there are other possible causes for these symptoms, and secondary adaptive changes should also be considered in differential diagnosis. Understanding the pathophysiology of these symptoms and differential diagnosis of their potential origin is important for therapy. In addition to symptoms, the evaluation of potential impairments (altered cervical joint position and movement sense, static and dynamic balance, and ocular mobility and coordination) should become an essential part of the routine assessment of those with traumatic neck pain, including those with concomitant injuries such as concussion and vestibular or visual pathology or deficits. Once adequately assessed, appropriate tailored management should be implemented. Research to further assist differential diagnosis and to understand the most important contributing factors associated with abnormal cervical afferent input and a subsequent disturbance to the sensorimotor control system, as well as the most efficacious management of such symptoms and impairments, is important for the future.
{"title":"Spinal Manipulative Therapy for Atypical Cervicogenic Symptoms: A Review","authors":"David E. Bellin, Damien MY Tam, Gordon Cheung, Emannual Wong","doi":"10.26502/josm.511500079","DOIUrl":"https://doi.org/10.26502/josm.511500079","url":null,"abstract":"There is considerable evidence to support the importance of cervicogenic spinal dysfunction in musculoskeletal complaints, and the development of atypical symptoms including dizziness, dysphagia, angina, and visual disturbances. However, there are other possible causes for these symptoms, and secondary adaptive changes should also be considered in differential diagnosis. Understanding the pathophysiology of these symptoms and differential diagnosis of their potential origin is important for therapy. In addition to symptoms, the evaluation of potential impairments (altered cervical joint position and movement sense, static and dynamic balance, and ocular mobility and coordination) should become an essential part of the routine assessment of those with traumatic neck pain, including those with concomitant injuries such as concussion and vestibular or visual pathology or deficits. Once adequately assessed, appropriate tailored management should be implemented. Research to further assist differential diagnosis and to understand the most important contributing factors associated with abnormal cervical afferent input and a subsequent disturbance to the sensorimotor control system, as well as the most efficacious management of such symptoms and impairments, is important for the future.","PeriodicalId":73881,"journal":{"name":"Journal of orthopaedics and sports medicine","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69349608","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Halder Rc, Rahaman Sk, K. Mmr, Mamun Mba, Faruqe O, Islam Ms, Hoque M, Rashid Mmo, Hossain Gmj
Background: The shoulder is the most commonly dislocated major joint, affecting roughly 2% of the general population. Long-term studies have demonstrated a correlation between the number of instability episodes and the risk of degenerative arthritis. In an effort to treat the unstable shoulder, orthopedic surgeons have described several different operations that may help to prevent recurrent subluxation or dislocation in chronic instability cases. This study has been undertaken to assess the short-term functional outcome of Arthroscopic repair of Bankart’s Lesion in patients with Chronic Anterior Instability of the Shoulder using Constant Murley’s Score. Material and Method: This prospective observational study was carried out at the National Institute of Traumatology and Orthopedic Rehabilitation (NITOR), from July 2017 to June 2019. Twenty cases of chronic anterior shoulder dislocation meeting the inclusion and exclusion criteria were taken in this study and underwent arthroscopic repair of bankart lesion. Here, 3 or 4 anchors were used. Cases were followed up for 6 months. The outcome was assessed with Constant Murley Scoring. Results: The mean age was 26.716.83 years with a male predominance (95%). Most cases were students (50%) and the main cause of injury was sports (50%). The mean recurrence number was 10.65 ± 4.75 times and was significantly associated with decreasing age. The mean interval between 1 injury and surgery was 3 ± 1.89 years. Bankart lesions were found in 20% of cases in pre-operative imaging. At the final follow-up, 2 (10%) cases of limited movement were found. In 18 (90%) cases, 3 anchors were used. Finally, there was significant improvement regarding pain status, activity of daily living, forward flexion, abduction, external rotation, internal rotation and power of shoulder muscle. In the last follow-up, 2 (10%) cases of limited movement were found. The mean CMS pre-operatively and post-operatively were 63.05 ± 5.23 and 88.25 6.29 respectively (p<0.05). In the final outcome, 16 (80%) scored excellent, 3 (15%) were found good and 1 (5%) was found poor. Conclusion: It may be concluded that arthroscopic Repair of Bankart Lesion with suture anchors in chronic anterior instability of the shoulder is a safe surgery regardless of shoulder function or range of motion.
{"title":"Results of Arthroscopic Repair of Bankart Lesion in Chronic Anterior Instability of the Shoulder","authors":"Halder Rc, Rahaman Sk, K. Mmr, Mamun Mba, Faruqe O, Islam Ms, Hoque M, Rashid Mmo, Hossain Gmj","doi":"10.26502/josm.511500095","DOIUrl":"https://doi.org/10.26502/josm.511500095","url":null,"abstract":"Background: The shoulder is the most commonly dislocated major joint, affecting roughly 2% of the general population. Long-term studies have demonstrated a correlation between the number of instability episodes and the risk of degenerative arthritis. In an effort to treat the unstable shoulder, orthopedic surgeons have described several different operations that may help to prevent recurrent subluxation or dislocation in chronic instability cases. This study has been undertaken to assess the short-term functional outcome of Arthroscopic repair of Bankart’s Lesion in patients with Chronic Anterior Instability of the Shoulder using Constant Murley’s Score. Material and Method: This prospective observational study was carried out at the National Institute of Traumatology and Orthopedic Rehabilitation (NITOR), from July 2017 to June 2019. Twenty cases of chronic anterior shoulder dislocation meeting the inclusion and exclusion criteria were taken in this study and underwent arthroscopic repair of bankart lesion. Here, 3 or 4 anchors were used. Cases were followed up for 6 months. The outcome was assessed with Constant Murley Scoring. Results: The mean age was 26.716.83 years with a male predominance (95%). Most cases were students (50%) and the main cause of injury was sports (50%). The mean recurrence number was 10.65 ± 4.75 times and was significantly associated with decreasing age. The mean interval between 1 injury and surgery was 3 ± 1.89 years. Bankart lesions were found in 20% of cases in pre-operative imaging. At the final follow-up, 2 (10%) cases of limited movement were found. In 18 (90%) cases, 3 anchors were used. Finally, there was significant improvement regarding pain status, activity of daily living, forward flexion, abduction, external rotation, internal rotation and power of shoulder muscle. In the last follow-up, 2 (10%) cases of limited movement were found. The mean CMS pre-operatively and post-operatively were 63.05 ± 5.23 and 88.25 6.29 respectively (p<0.05). In the final outcome, 16 (80%) scored excellent, 3 (15%) were found good and 1 (5%) was found poor. Conclusion: It may be concluded that arthroscopic Repair of Bankart Lesion with suture anchors in chronic anterior instability of the shoulder is a safe surgery regardless of shoulder function or range of motion.","PeriodicalId":73881,"journal":{"name":"Journal of orthopaedics and sports medicine","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69349795","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The Posterior Interosseous Nerve (PIN) represents a critical neurovascular structure within the surgical field of the lateral approaches to the elbow. The PIN innervates the extensor muscles of the forearm, while also sending sensory fibers to the dorsal wrist capsule, and iatrogenic injury during surgical exposure can compromise these functions. Thus, a thorough understanding of how to localize the PIN with anatomic landmarks is needed to best avoid this complication. The literature describes utilizing the radiocapitellar joint, radial tuberosity, lateral epicondyle, and the transepicondylar distance to localize the PIN. Moreover, pronation relocates the PIN to more distal position due to tethering within the supinator muscle, and this protects the nerve regarding surgical work in the lateral elbow vicinity, such as on the radial head and neck. In this review, we report the literature describing the strategies to localize the PIN from anatomic landmarks with respect to surgical approaches of the lateral elbow.
{"title":"Localizing the Posterior Interosseous Nerve with Anatomic Landmarks During Surgical Approaches of the Lateral Elbow","authors":"Gary Ulrich MD, Srinath Kamineni MD","doi":"10.26502/josm.511500119","DOIUrl":"https://doi.org/10.26502/josm.511500119","url":null,"abstract":"The Posterior Interosseous Nerve (PIN) represents a critical neurovascular structure within the surgical field of the lateral approaches to the elbow. The PIN innervates the extensor muscles of the forearm, while also sending sensory fibers to the dorsal wrist capsule, and iatrogenic injury during surgical exposure can compromise these functions. Thus, a thorough understanding of how to localize the PIN with anatomic landmarks is needed to best avoid this complication. The literature describes utilizing the radiocapitellar joint, radial tuberosity, lateral epicondyle, and the transepicondylar distance to localize the PIN. Moreover, pronation relocates the PIN to more distal position due to tethering within the supinator muscle, and this protects the nerve regarding surgical work in the lateral elbow vicinity, such as on the radial head and neck. In this review, we report the literature describing the strategies to localize the PIN from anatomic landmarks with respect to surgical approaches of the lateral elbow.","PeriodicalId":73881,"journal":{"name":"Journal of orthopaedics and sports medicine","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69349824","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Infraspinatus tendon is the most affected tendon of the rotator cuff, being an important posterior component of the shoulder joint. Hyperlipidemia is a predisposing factor in the progression of rotator cuff tears and retear. We studied the effect of hyperlipidemia on the biomechanical properties of rotator cuff tendons. The infraspinatus tendon of the rotator cuff from hyperlipidemic swine were collected and tested for ultimate tensile strength (UTS) and modulus of elasticity. Dynamic mechanical analysis was performed to examine viscoelastic properties. The findings revealed no significant difference in UTS but had significantly lower modulus of elasticity in the infraspinatus tendon of the hyperlipidemic group compared to the control group. Moreover, differences in the dynamic modulus, storage modulus, and loss modulus were not statistically significant between the hyperlipidemic and control swine. There was no difference in water content between the groups but the hyperlipidemic group had fatty infiltration aiding the initial decrease in mechanical properties. These findings suggest an association between fat deposition and early changes in the biomechanical properties of the tendons in the shoulder rotator cuff in hyperlipidemic state.
{"title":"Hyperlipidemia Lowers the Biomechanical Properties of Rotator Cuff Tendon","authors":"Merlin Rajesh Lal L. P, Devendra K. Agrawal","doi":"10.26502/josm.511500126","DOIUrl":"https://doi.org/10.26502/josm.511500126","url":null,"abstract":"Infraspinatus tendon is the most affected tendon of the rotator cuff, being an important posterior component of the shoulder joint. Hyperlipidemia is a predisposing factor in the progression of rotator cuff tears and retear. We studied the effect of hyperlipidemia on the biomechanical properties of rotator cuff tendons. The infraspinatus tendon of the rotator cuff from hyperlipidemic swine were collected and tested for ultimate tensile strength (UTS) and modulus of elasticity. Dynamic mechanical analysis was performed to examine viscoelastic properties. The findings revealed no significant difference in UTS but had significantly lower modulus of elasticity in the infraspinatus tendon of the hyperlipidemic group compared to the control group. Moreover, differences in the dynamic modulus, storage modulus, and loss modulus were not statistically significant between the hyperlipidemic and control swine. There was no difference in water content between the groups but the hyperlipidemic group had fatty infiltration aiding the initial decrease in mechanical properties. These findings suggest an association between fat deposition and early changes in the biomechanical properties of the tendons in the shoulder rotator cuff in hyperlipidemic state.","PeriodicalId":73881,"journal":{"name":"Journal of orthopaedics and sports medicine","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135059044","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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