Bergchappell3445

Although signals could be detected, there was no reproducibility in electromyographic signal activation for the HFP. The most rapid MLR was observed for the PM (quadriceps 37 milliseconds).

Each stimulated structure displayed an individual MLR response, which allowed us to create neuromapping combining the anatomical and quantitative representations of the individual muscular activation patterns after isolated mechanical stimulation of the capsuloligamentous knee joint structures, corroborating our hypothesis.

Diagnostic - Level II.

Diagnostic - Level II.

To investigate the biomechanical influence of differential loading of suture strands (torque) on the fixation strength of knotted and knotless all-suture anchors.

The biomechanical strength of 48 all-suture anchors was evaluated for 4 conditions in polyurethane foam blocks (1) 12 knotted all-suture anchors loaded proportionately, (2) 12 knotted all-suture anchors with 1 suture strand bearing 50% of total force (partial torque), (3) 12 knotted all-suture anchors with 1 strand fixated and the other loaded (full torque), and (4) 12 knotless all-suture anchors with the loop kept open via a fixed rod. Force for 1 mm and 2 mm of displacement and ultimate failure load were assessed.

For 1 mm of displacement, groups 2, 3, and 4 showed significantly lower forces than group 1 (all

< .001), with no statistically significant difference between groups 2 and 3 (

= .516); for 2 mm of displacement, all groups showed significantly lower forces than group 1 (

< .001), which positively correlated with applied alance on anchor fixation is variable and should be considered during placement and fixation of the repair constructs in a clinical setting.

To quantify the magnetic resonance arthrography (MRA) findings in rugby players during preoperative workup for anterior surgical stabilization for glenohumeral instability.

All patients who underwent glenohumeral instability surgery in our institution between 2008 and 2018 were considered for inclusion. Rugby players were identified using the patient's medical notes, with subsequent identification of all professional players. All rugby player's preoperative MRA findings were recorded and analyzed.

Overall, 267 rugby players were included, 261 of whom were male (97.8%), with a mean age of 22.7 years (range 13-55 years). There were 58 professional rugby players (21.7%). The mean number of pathologies in nonprofessional rugby players was 5.0 pathologies versus 6.2 pathologies in the professional rugby players, with a significant difference in nonprofessional rugby players with up to 3 pathologies versus professional rugby players (26.3% vs 10.3%,

= .01). Professional rugby players had a statistically significant increased incidence of bicipital tendon lesions (25.9% vs 13.9%,

= .009), acromioclavicular joint degeneration (60.3% vs 42.1%,

= .016), glenohumeral bone loss (87.9% vs 69.9%,

= .006), and degenerative changes (67.2% vs 44.0%,

= .002) on their MRAs.

Rugby players undergoing surgical stabilization for glenohumeral instability often have a significant number of pathologies identified on MRA at the time of surgery. Professional rugby players showed concerningly greater frequencies of early degenerative changes when compared with nonprofessional rugby players.

III; Retrospective Cohort Study.

III; Retrospective Cohort Study.

To use validated outcome measures to evaluate the clinical results of surgical repair of distal triceps tendon ruptures using transosseous tunnels and high-strength sutures with proximally based knots.

A consecutive series of traumatic distal triceps tendon ruptures at a single institution was studied. All cases were surgically repaired by 1 surgeon using high-strength suture with a bone tunnel-based repair technique. Repair knots were oriented proximally instead of in the traditional distal position. All patients were evaluated at long-term follow-up with a physical examination performed by the orthopaedic surgeon and the following validated outcome measures Disabilities of the Arm, Shoulder and Hand score; Mayo Elbow Performance Score; and visual analog scale score.

Seven male patients with a mean age of 38 years (range, 19-50 years) and mean follow-up period of 4.1 ± 1.2 years underwent distal triceps tendon repair with bone tunnels and high-strength sutures with proximally positioned knots. Glutathione Of the repairs, 4 involved the dominant arm. At final follow-up, the mean Disabilities of the Arm, Shoulder and Hand score was 1.3 ± 3.1; the mean Mayo Elbow Performance Score was 99.3 ± 1.9; and the mean visual analog scale score was 0. One additional patient who declined participation in the study had wound dehiscence and infection with an associated partial rerupture.

This case series of triceps tendon repairs using transosseous tunnels and proximally based knots showed favorable postoperative elbow function based on validated outcome measures.

Level IV, therapeutic case series.

Level IV, therapeutic case series.

To assess the current national rate of medial ulnar collateral ligament (MUCL) repair of the elbow and delineate the patient demographics of those undergoing repair.

A retrospective review and analysis of a national private insurance database was conducted covering 2007-2017 using Pearl Diver technologies. All patients diagnosed with a MUCL injury and those who underwent repair were included using Clinical Modification and Current Procedural Terminology code 24345, referencing repair of the ulnar collateral ligament of the elbow with local tissue. The extracted data included patient age at time of procedure, sex, race, region, year of surgery, insurance type, hospital setting, and any associated diagnoses with 90 days of the repair procedure. Standard descriptive methods characterized our study sample to calculate frequency counts and percentages. Means with respective standard deviations and/or standard errors, and 95% confidence intervals were calculated and reported for continuous variables, whereas frquicker return to sport and fewer complications, largely due to recent improvements in surgical technique for MUCL repair. As anticipated, the incidence of MUCL repair had steadily increased in the United States from 2007 to 2014, with a subsequent relatively inexplicable decrease primarily in 2017, according to the database utilized in this study. The 15-24 year-old age group encompassing young athletes has the greatest incidence of repair by a significant margin.

IV, Therapeutic Case Series.

IV, Therapeutic Case Series.