MRI Allows Accurate Measurement of Glenoid Bone Loss

Sgroi, Mirco; Huzurudin, Hashuka; Ludwig, Marius; Zippelius, Timo; Reichel, Heiko; Kappe, Thomas

doi:10.1097/corr.0000000000002215

Cited by 11 publications

(5 citation statements)

References 49 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…An alternative to 3D CT imaging is 3D MRI which was used in the Owens et al study [20]. MRI is often used for diagnosis of concomitant soft‐tissue injuries in shoulder instability and does not expose patients to radiation [24]. Our analysis was inconsistent with that of Giles et al [13] who compared their CT‐based formula to the MRI‐based formula and demonstrated good agreement when both sexes were considered together (ICC = 0.82).…”

Section: Discussionmentioning

confidence: 99%

Calculating glenoid bone loss based on glenoid height using ipsilateral three-dimensional computed tomography

Rayes

Sparavalo

et al. 2022

Knee Surg Sports Traumatol Arthrosc

View full text Add to dashboard Cite

Purpose To investigate the relationship between glenoid width and other morphologic parameters using three-dimensional (3D) computed tomography (CT) images of native shoulders, and to create a new measurement tool to assess glenoid defects in a Canadian population with established anterior shoulder instability. Methods Forty-three glenoid CT scans were analyzed for patients who underwent contralateral shoulder glenoid reconstruction for anterior shoulder instability between 2012 and 2020. Demographic data were obtained including age, gender and BMI. The subjects were excluded if they had a prior history of ipsilateral shoulder instability, shoulder fractures, or bone tumors. The following glenoid parameters were measured: width (W), height (H), anteroposterior (AP) depth, superior-inferior (SI) depth and version. The shape of the glenoid was also classiied into pear, inverted comma or oval. Results There were 35 male and 8 females with a mean age of 34.5 ± 12.9 years. The glenoid width was strongly correlated with the height (R 2 = 0.9) and a regression model equation was obtained: W (mm) = 2.5 + 0.7*H (mm). There was also strong correlation with gender (P < 0.001), glenoid shape (P = 0.030), AP and SI depths (P = 0.006 and P < 0.001, respectively). Male gender was associated with higher measurement values for all parameters. The most common glenoid shapes were the pear (46.5%) and oval morphotypes (39.6%) for the whole study group. ConclusionThe native glenoid width can be estimated based on glenoid height using ipsilateral 3D CT. This may help with preoperative planning and surgical decision-making for patients with anterior shoulder instability and glenoid bone loss. Level of evidence III.

show abstract

Section: Discussionmentioning

confidence: 99%

Calculating glenoid bone loss based on glenoid height using ipsilateral three-dimensional computed tomography

Rayes

Sparavalo

et al. 2022

Knee Surg Sports Traumatol Arthrosc

View full text Add to dashboard Cite

show abstract

“…That conclusion was confirmed with our present study’s results, demonstrating strong repairs in all three single anchor groups. In a recent biomechanical study of Fox‐Romeo grade III tears (full thickness tears of the upper 50%) no differences were found between knotted and knotless single anchor repair techniques [24]. A further positive aspect of single anchor techniques is its cost‐effectiveness compared to double anchor techniques, which was not investigated in this study.…”

Section: Discussionmentioning

confidence: 79%

Arthroscopic single anchor repair techniques for upper third subscapularis tears provide sufficient biomechanical stability

Borbas

Cammarata

Loucas

et al. 2021

Knee Surg Sports Traumatol Arthrosc

View full text Add to dashboard Cite

PurposeUpper third tears of the subscapularis tendon can be repaired successfully with a single anchor according to previous literature. The aim of the present study was to compare three single anchor repair techniques regarding fixation strength, footprint coverage and contact pressure in a biomechanical test set‐up on human cadaveric shoulders. MethodsEighteen human cadaveric shoulders were randomized in three groups with respect to the repair technique; group 1: knotted lasso‐loop mattress, group 2: knotted mattress and group 3: knotless tape repair. Upper third tears of the subscapularis tendon (Lafosse type 2) were created and repairs were performed with additional contact pressure and area measurement using a pressure mapping system. Cyclic testing was performed by loading the subscapularis from 10 to 100 N for 300 cycles. A position‐controlled ramp protocol up to 30 and 50 N was used to allow for pressure measurements. Finally, specimens were loaded to failure and failure modes were recorded. ResultsThe three groups were not significantly different regarding age, gender, bone mineral density at the lesser tuberosity, subscapularis footprint size and defect area created at the upper subscapularis insertion. A significant difference was detected between group 1 (48.6 ± 13.8%) and group 2 (25.9 ± 5.7%) regarding pressurized footprint coverage (p = 0.028).Ultimate load to failure was 630.8 ± 145.3 N in group 1, 586.9 ± 220.7 N in group 2 and 678.2 ± 236.5 N in group 3, respectively. Cyclic displacement was similar in all three groups with an average displacement of 1.2 ± 0.6 mm. The highest stiffness was found in group 1 with 88 ± 30.3, which was not statistically significantly different to group 2 (65 ± 27 N/mm) and group 3 (83.9 ± 32.9 N/mm).The most common mode of failure was suture cut‐through at the suture–tendon interface (44%). Failures in group 3 were less common associated with suture cut‐through (33% vs. 50% in group 1 and 2), but no significant differences were found. ConclusionsAll three tested single anchor repair techniques of upper third subscapularis tears were able to provide sufficient biomechanical stability. Knotted lasso‐loop mattress and knotless tape repair were superior regarding pressurized footprint coverage compared to a knotted horizontal mattress technique and are, therefore, preferable techniques for upper subscapularis repair.

show abstract

“…Although utilization of 2 different modalities (MRI in patients with C1 shoulders and CT in control patients to measure osseous shoulder girdle anatomy) may seem to alter the comparability of our results, 3D-MRIs are described in the literature as reliable and as accurate as conventional CT in the diagnosis and evaluation of osseous pathologies of the shoulder girdle. 7,27,28,30 The small sample size of the C1 group may underpower our results. Nonetheless, the differences were substantial enough to reach statistical significance even with a small sample size.…”

Section: Discussionmentioning

confidence: 97%

Differences in Osseous Shoulder Morphology, Scapulothoracic Orientation, and Muscle Volume in Patients With Constitutional Static Posterior Shoulder Instability (Type C1) Compared With Healthy Controls

Akgün,

Gebauer,

Paksoy

et al. 2024

Am J Sports Med

View full text Add to dashboard Cite

Background: Constitutional static posterior humeral decentering (type C1 according to ABC Classification) has been recognized as a pre–osteoarthritic deformity that may lead to early-onset posterior decentering osteoarthritis at a young age. Therefore, it is important to identify possible associations of this pathologic shoulder condition to find more effective treatment options. Purpose: To perform a comprehensive analysis of all parameters reported to be associated with a C1 shoulder—including the osseous shoulder morphology, scapulothoracic orientation, and the muscle volume of the shoulder girdle in a single patient cohort. Study Design: Cross-sectional study; Level of evidence, 3. Methods: A retrospective, comparative study was conducted analyzing 17 C1 shoulders in 10 patients who underwent magnetic resonance imaging (MRI) with the complete depiction of the trunk from the base of the skull to the iliac crest, including both humeri. The mean age of the patients was 33.5 years, and all patients were men. To measure and compare the osseous shoulder morphology (glenoid version, glenoid offset, humeral torsion, anterior acromial coverage, posterior acromial coverage, posterior acromial height, and posterior acromial tilt) and scapulothoracic orientation (scapular protraction, scapular internal rotation, scapular upward rotation, scapular translation, scapular tilt, and thoracic kyphosis), these patients were matched 1 to 4 according their age, sex, and affected side with shoulder-healthy patients who had received positron emission tomography (PET)-computed tomography. To measure and compare the muscle volume of the shoulder girdle (subscapularis, infraspinatus/teres minor, supraspinatus, trapezius, deltoid, latissimus dorsi/teres major, pectoralis major, and pectoralis minor), patients were matched 1 to 2 with patients who had received PET-MRI. Patients with visible pathologies of the upper extremities were excluded. Results: The C1 group had a significantly higher glenoid retroversion, increased anterior glenoid offset, reduced humeral retrotorsion, increased anterior acromial coverage, reduced posterior acromial coverage, increased posterior acromial height, and increased posterior acromial tilt compared with controls ( P < .05). Decreased humeral retrotorsion showed significant correlation with higher glenoid retroversion ( r = −0.742; P < .001) and higher anterior glenoid offset ( r = −0.757; P < .001). Significant differences were found regarding less scapular upward rotation, less scapular tilt, and less thoracic kyphosis in the C1 group ( P < .05). The muscle volume of the trapezius and deltoid was significantly higher in the C1 group ( P < .05). Conclusion: Patients with C1 shoulders differ from healthy controls regarding osseous scapular and humeral morphology, scapulothoracic orientation, and shoulder girdle muscle distribution. These differences may be crucial in understanding the delicate balance of glenohumeral centering.

show abstract

MRI Allows Accurate Measurement of Glenoid Bone Loss

Cited by 11 publications

References 49 publications

Calculating glenoid bone loss based on glenoid height using ipsilateral three-dimensional computed tomography

Calculating glenoid bone loss based on glenoid height using ipsilateral three-dimensional computed tomography

Arthroscopic single anchor repair techniques for upper third subscapularis tears provide sufficient biomechanical stability

Differences in Osseous Shoulder Morphology, Scapulothoracic Orientation, and Muscle Volume in Patients With Constitutional Static Posterior Shoulder Instability (Type C1) Compared With Healthy Controls

Contact Info

Product

Resources

About