BiPOD arthroscopically assisted bidirectional stabilisation technique for high-grade acromioclavicular joint injury: two-year clinical and radiological outcomes

Murphy, Richard; Ambuehl, Benedikt; Schaer, Michael; Weihs, Johannes; Moor, Beat K.; Zumstein, Matthias A.

doi:10.1007/s00402-021-03768-5

Cited by 5 publications

(3 citation statements)

References 22 publications

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“…When practicing Taijiquan, the knee joint relies on these two axes to complete different Taijiquan movements. Due to the characteristics of Taijiquan, the knee joint always maintains a state of flexion during the movement, that is, most of the movement of the knee joint is carried out around the vertical axis [16,17].…”

Section: Exercise Characteristics Of Taijiquan and Mechanism Of Knee ...mentioning

confidence: 99%

Joint Injury of Taijiquan Based on Computer Image Analysis

Wen

Bai

Zhao

2022

Mathematical Problems in Engineering

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With people’s attention to physical health and health preservation, more and more people practice Taijiquan to achieve the purpose of physical fitness and self-cultivation. However, many people do not fully understand the principles of Taijiquan in the early stage of practicing Taijiquan, rely on imitation to practice, and ignore the action essentials and characteristics of Taijiquan, resulting in joint pain. At the same time, many beginners ignore the causes of these situations, resulting in joint damage. Therefore, this paper proposes the research on the joint injury of Taijiquan based on computer image analysis and carries out the dependent research and analysis through the joint image processing model based on the improved Robert’s edge detection algorithm. The experimental results show that the action cycle time of wrong action is longer than the total time of correct action due to the increase of action displacement, and the long displacement distance increases the pressure on the knee joint and improves the probability of knee joint damage. In addition, there are obvious differences between wrong action and correct action in knee adduction and abduction, flexion and extension, internal rotation, and external angle. Wrong action knee joint movement does not conform to the natural movement law of human body, which increases the pressure or tension to the knee joint and surrounding related tissues and improves the probability of knee joint damage.

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Section: Exercise Characteristics Of Taijiquan and Mechanism Of Knee ...mentioning

confidence: 99%

Joint Injury of Taijiquan Based on Computer Image Analysis

Wen

Bai

Zhao

2022

Mathematical Problems in Engineering

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“…In the chronic setting, the use of tendon grafts is recommended [ 20 , 21 , 22 ]. Independent of the interval since injury, coracoclavicular and AC ligament addressment is essential to restore bidirectional ACJ stability [ 23 , 24 ].…”

Section: Introductionmentioning

confidence: 99%

Concomitant Glenohumeral Pathologies in Patients with Acromioclavicular Joint Dislocations: How Do Acute and Chronic Instabilities Differ?

Vetter,

Massih,

Bellmann

et al. 2024

JCM

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Background: Concomitant glenohumeral pathologies may be present in patients with acromioclavicular joint (ACJ) dislocations. This study aims to record and compare the prevalence and treatment of CGP in cases with acute and chronic ACJ dislocations. Methods: This retrospective cross-sectional binational, bicentric study included patients that underwent arthroscopically assisted stabilization for acute (group A) and chronic (group C) ACJ dislocations. Intraoperatively, CGPs and eventual treatments (debridement and reconstructive measures) were recorded. Results: The study included 540 patients (87% men; mean age 39.4 years), with 410 (75.9%) patients in group A and 130 (24.1%) in group C. Patients in group C were older (p < 0.001). The CGP prevalence was 30.7%, without a difference between groups A and C (p = 0.19). Supraspinatus tendon (SSP) and labral lesions were most common. Within group C, CGPs were more prevalent in surgery-naïve patients (p = 0.002). Among 49 patients with previous surgical treatment, CGPs tended to be more common in patients with prior open surgery than arthroscopically assisted surgery (p = 0.392). Increased CGP prevalence was associated with higher age (r = 0.97; p = 0.004) (up to 63% in the oldest age group, but also 17% for youngest age group) and higher in cases with Rockwood type-IIIB injuries compared to type-V injuries (p = 0.028), but type-IIIB injuries included more group C cases (p < 0.001). The most frequently found CGPs were treated by debridement rather than reconstructive interventions (SSP and labrum: p < 0.001, respectively). Conclusions: This study shows that one in three patients with ACJ instabilities has a CGP, especially elderly patients. Most of the CGPs were treated by debridement rather than constructive interventions.

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“…Usually failed conservative therapy over a time period of months is the indication for AC-joint resection or resection of the lateral clavicle [ 14 ]. This procedure can be performed either in an open fashion or arthroscopically [ 21 , 28 , 31 ]. Because of the preservation of the superior capsule, the preference and better outcome are attributed to the arthroscopic technique nowadays [ 4 , 7 , 15 , 23 , 26 ].…”

Section: Introductionmentioning

confidence: 99%

Morphology of the acromioclavicular-joint score (MAC)

Fal

Junker

Mader

et al. 2022

Arch Orthop Trauma Surg

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Introduction To date there is no generally accepted specific definition or classification of acromioclavicular (AC) joint osteoarthritis. The aim of this study is to analyze morphological parameters using magnetic resonance imaging (MRI) and to develop a scoring system as a basis for decision making to perform an AC-joint resection. Materials and methods In a retrospective-monocentric matched pair study, healthy and affected subjects were investigated using T2 MRI scans in the transverse plane. There were two groups, group 1 (n = 151) included healthy asymptomatic adults with no history of trauma. In group 2, we included n = 99 patients with symptomatic AC joints, who underwent arthroscopic AC-joint resection. The central and posterior joint space width and the AC angle were measured. Morphological changes such as cartilage degeneration, cysts and bone edema were noted. Malalignment of the joint was defined as: posterior joint space width < 2 mm in conjunction with an AC angle > 12°. A scoring system consisting of the measured morphologic factors was developed. Results Symptomatic and asymptomatic patients showed significant differences in all measured items. We observed a significant difference in the MAC score for symptomatic and asymptomatic patients (mean 10.4 vs. 20.6, p = 0.0001). The ROC (receiver operator characteristic) analysis showed an excellent AUC of 0.899 (p = 0.001). The sensitivity of the MAC score was 0.81 and the specificity 0.86. The MAC score shows a significant moderate correlation with age (r = 0.358; p = 0.001). The correlation of age and the development of symptoms was only weak (r = 0.22, p = 0.001). Symptomatic patients showed significantly more frequent malalignment compared to asymptomatic patients (p = 0.001), but the positive predictive value that a patient with malalignment is also symptomatic is only 55%. Conclusion Patients with symptomatic AC joints showed a typical pattern of morphological changes on axial MRI scans with early posterior contact of the joint surfaces, reduction of joint space and malalignment as the basis for the development of a scoring system. The MAC score shows excellent test characteristics, and therefore, proved to be both an appropriate guidance for clinical practice as well as an excellent tool for comparative studies and is superior to the assessment of malalignment alone. Level of evidence Level IV, retrospective diagnostic study.

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BiPOD arthroscopically assisted bidirectional stabilisation technique for high-grade acromioclavicular joint injury: two-year clinical and radiological outcomes

Cited by 5 publications

References 22 publications

Joint Injury of Taijiquan Based on Computer Image Analysis

Joint Injury of Taijiquan Based on Computer Image Analysis

Concomitant Glenohumeral Pathologies in Patients with Acromioclavicular Joint Dislocations: How Do Acute and Chronic Instabilities Differ?

Morphology of the acromioclavicular-joint score (MAC)

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