Superior Labrum From Anterior To Posterior Research Articles

Glenohumeral Pathologies following Primary Anterior Traumatic Shoulder Dislocation-Comparison of Magnetic Resonance Arthrography and Arthroscopy.

We assessed intraarticular injuries in patients after primary anterior traumatic shoulder dislocation by comparing magnetic resonance arthrography (MRA) results with concomitant arthroscopic findings. All patients with primary traumatic shoulder dislocation who underwent arthroscopic surgery between 2001 and 2020 with preoperative MRA were included in this study. MRA was retrospectively compared with arthroscopic findings. Postoperative shoulder function was prospectively assessed using the Disabilities of Arm, Shoulder and Hand score (quick DASH), the Oxford Shoulder Score (OSS), the Subjective Shoulder Value (SSV), as well as the rate of return to sports. A total of 74 patients were included in this study. A Hill-Sachs lesion was consistently found in the corresponding shoulders on MRA and arthroscopy in 35 cases (p = 0.007), a Bankart lesion in 37 shoulders (p = 0.004), and a superior labrum from anterior to posterior (SLAP) lesion in 55 cases (p = 0.581). Of all cases, 32 patients were available for a clinical and functional follow-up evaluation. A positive correlation was found between the level of sport practiced and the Oxford Shoulder Score (redislocation subset) (p = 0.032) and between the age at the time of surgery and the follow-up SSV (p = 0.036). Conversely, a negative correlation was observed between the age at the time of surgery and the Oxford Instability Score (redislocation subset) (p = 0.038). The results of this study show a good correlation between MRA and arthroscopy. Therefore, MRA is a valid tool for the detection of soft tissue pathologies after primary anterior traumatic shoulder dislocation and can aid in presurgical planning.

Clinical Outcomes Following Arthroscopic Decompression and Repair versus Repair Alone in Patients with a Concomitant Spinoglenoid Cyst and SLAP Lesion: A Systematic Review.

(1) Background: Patients with a superior-labrum-from-anterior-to-posterior (SLAP) tear associated with a spinoglenoid ganglion cyst have undergone various procedures. The purpose of this study is to evaluate clinical outcomes following arthroscopic treatment in patients with a concomitant spinoglenoid ganglion cyst and SLAP lesion. (2) Methods: This study followed PRISMA (preferred reporting items for systematic reviews and meta-analyses) guidelines, utilizing the PubMed, EMBASE, Cochrane Library, and Scopus databases. The keywords included shoulder, SLAP, labral tear, spinoglenoid notch, paralabral cyst, arthroscopy, and treatment. (3) Results: A total of 14 articles (206 patients) were included. Repair alone was administered in 114 patients (Group R), and 92 patients underwent additional cyst decompression (Group RD). Both groups showed excellent and similar clinical scores. The rate of the complete resorption of the cyst was 95.5% in Group RD, and 92.2% in Group R. The complication rate was 3.5% in Group RD, and 11.4% in Group R. The reoperation rate was 0% in Group RD, and 5.3% in Group R. (4) Conclusion: Reliable clinical outcomes without serious complications were obtained from the use of both procedures. The decompression of the cyst is a safe method that will alleviate pressure on the suprascapular nerve.

Poster 178: Outcomes of SLAP Repair vs. Biceps Tenodesis of SLAP Lesions in Females: A Retrospective Review

Objectives: When surgically managing superior labrum from anterior to posterior (SLAP) tears, there is no consensus on whether SLAP repair or biceps tenodesis yields superior long term outcomes. Additionally, no previous studies have specifically examined outcomes of these procedures in female patients, despite evidence of sex-based differences in recovery following orthopedic surgery. The purpose of this study was to retrospectively compare outcomes after SLAP repair and biceps tenodesis in females. Prior to the start of the study, it was predicted that outcomes between patients who undergo SLAP repair and biceps tenodesis as a treatment will not significantly differ. Methods: Female patients who underwent arthroscopic SLAP repair or biceps tenodesis for treatment of an SLAP lesion between 1/1/2014 and 9/1/2019 at a single institution were retrospectively reviewed. Patients were queried using CPT codes for arthroscopic SLAP repair or biceps tenodesis: for those identified, electronic medical records were reviewed to confirm they met inclusion criteria. Exclusion criteria included: age less than 18 years old at the time of surgery, revision surgery, and concomitant rotator cuff repair at the time of surgery. Patients were contacted at a minimum of two-years post- surgery and asked to complete the standardized American Shoulder and Elbow Surgeons (ASES) score, single assessment numerical evaluation (SANE) survey, and visual analog scale (VAS) for pain. Patients were also given a custom survey assessing return to activity and level of activity following the operation. Patient demographics collected included age at time of surgery, BMI, laterality, and procedure type. Differences in post-operative function between the procedures were assessed using T-tests or Mann- Whitney U tests for numerical data and Chi-Square testing for categorical data. Results: The study included 118 patients. 61 (51.7%) underwent arthroscopic SLAP repair, and 57 (48.3%) underwent open or arthroscopic biceps tenodesis. Comparing demographic data for SLAP repair versus biceps tenodesis groups, mean age was 35.2±8.93 years versus 45.5±10.2 years (p<0.001), mean BMI was 27.5 versus 29.2 (p=0.095), the rates of left shoulder repairs was 30 (50.8%) versus 14 (26.4%), and the rates of right shoulder repairs was 29 (49.2%) versus 39 (73.6%) (p=0.014). Concomitant pathologies were recorded in 68.9% of SLAP repairs and in 88.0% of biceps tenodesis (p=0.030). Concomitant procedures (including bursectomy, capsular release, and acromioplasty) were performed in 74.6% of SLAP repairs and in 92.0% of biceps tenodesis (p=0.033). The two groups showed no differences in two-year ASES scores (81.5 in SLAP repair vs 83.3 in biceps tenodesis, p=0.461), SANE scores (75.6 in SLAP repair vs 79.7 in biceps tenodesis, p=0.344) and VAS scores (20.2 in SLAP repair vs 21.1 in biceps tenodesis, p=0.645). Furthermore, rates of participation in sports prior to surgery was similar (55.4% in SLAP repair vs 42.6% in biceps tenodesis , p=0.251); of those who reported participation prior to surgery, rates of return to participation in sport following surgery was also similar (77.4% in SLAP repair vs 78.3% in biceps tenodesis, p=1.000). Conclusions: This is the first study to evaluate the outcomes of SLAP repair and biceps tenodesis for SLAP lesions in female patients. Female patients who underwent surgical treatment of SLAP lesions with SLAP repair or biceps tenodesis show comparable minimum two-year results with respect to level of function, self-reported pain, and ability to return to sports after these procedures. The incidence of concomitant pathologies and concomitant procedures at the time of SLAP repair and biceps tenodesis differed between the two groups, possibly related to group age disparity. Further research is necessary to define precise treatment indications for this pathology in this specific patient population.

The Impact of Lateral Decubitus vs. Beach Chair Positioning on the Clinical Outcome of the Patients with Isolated SLAP Type II Repair: A Systematic Review and Meta-analysis.

A superior labrum from anterior to posterior (SLAP) repairs can be performed in either beach chair (BC) or lateral decubitus (LD).The purpose of this study was to perform a systematic review and meta-analysis to compare the outcomes of surgical repair of type II SLAP injuries between the BC vs. LD positions. We hypothesized no statistically significant differences in the functional, pain, and motion outcomes between the BC vs. LD positions after type II SLAP repair. A comprehensive literature search was performed using MEDLINE, Scopus, Web of Science, Embase, and Cochrane to identify studies reporting outcomes after type II SLAP repair. Outcome measures consisted of pain using the visual analog score (VAS), range of motion (ROM), and functional scores, including the University of California at Los Angeles Shoulder (UCLA) score, American Shoulder and Elbow Surgeons (ASES), and Constant score. The outcomes were pooled and analyzed for eligibility and stratified into two subgroups for a random-effects model meta-analysis. Of the 8,016 identified studies through a database search, 13 papers (378 patients) were eligible for statistical analysis in the BC and 10 articles (473 patients) were included in the LD group. The mean follow-up for BC and LD was 35 and 44 months, respectively. The SLAP repair in both positions demonstrated improvements in postoperative clinical outcomes and ROM. Comparing the two positions, the LD group demonstrated significantly greater improvements in VAS which contributed to better functional outcomes, while the BC group showed a significantly greater improvement in abduction. No other differences were identified including ASES, UCLA, and Constant score as well as remaining ROM. Based on the findings of this systematic review and meta-analysis, both the BC and LD positions provide patients better outcomes following operative repair of type II SLAPs. While LD represented a better improvement in functional outcome measures, the BC position demonstrated better abduction with no other significant differences between both positions. An individualized approach to position selection concerning the patient's complaint (pain vs. motion) as well as the surgeon's discretion is recommended.

Trends in Repair vs. Biceps Tenodesis for Superior Labrum From Anterior to Posterior (SLAP) Tear: An Epidemiological Study.

BackgroundThe purpose of this epidemiologic study was to report general trends in the number of superior labrum from anterior to posterior (SLAP) tear repairs and biceps tenodesis performed along with the patient and hospital characteristics within the period of 2016-2018.MethodsNational Ambulatory Surgery Sample (NASS) database was used as the source of data for this epidemiologic study of the United States population. Current Procedural Terminology (CPT) codes were utilized to identify patients that underwent SLAP repair or biceps tenodesis between 2016 and 2018.ResultsThe national estimates of encounters from the NASS database reported 29,931 SLAP repairs in 2016 and each subsequent year saw a decline to 26,509 repairs in 2017 and 23,451 repairs in 2018 (p<0.0001). Conversely, in 2016 there were 19,221 biceps tenodeses and each subsequent year saw an increase to 21,625 biceps tenodeses in 2017 and 22,867 biceps tenodeses in 2018 (p<0.0001).ConclusionThe results of our epidemiologic study found that the total number of SLAP repairs is decreasing while biceps tenodesis is increasing. SLAP repairs were performed for younger patients and biceps tenodeses were performed for older patients. This study demonstrates that clinical practice reflective of recent evidence regarding optimal age for SLAP repair is slow to change. While there is ongoing debate as to the gold standard for the surgical management of SLAP tear lesions, our study confirms that there is an increasing trend among orthopedic surgeons favoring biceps tenodesis which may reflect the increasing literature evidence supporting better clinical outcomes after biceps tenodesis compared to SLAP repair.

Midterm Outcomes After Arthroscopic Repair of Type VIII SLAP Lesions in Active Duty Military Patients Younger Than 35 Years.

Background:Superior labrum from anterior to posterior (SLAP) lesions represent a significant cause of shoulder pain and disability among active duty members of the US military. However, few data exist regarding the surgical management of type VIII SLAP lesions.Hypothesis:We hypothesized that arthroscopic repair would decrease pain and increase function at the midterm follow-up and allow for a high rate of maintenance of active duty status.Study Design:Case series; Level of evidence, 4.Methods:Consecutive active duty military patients were identified from January 2011 through June 2015 who underwent arthroscopic repair of type VIII SLAP lesions performed by a single surgeon. Patients were excluded if they underwent glenoid microfracture, other capsulolabral repair, or rotator cuff repair. Outcome measures were completed by patients within 1 week before surgery and at latest follow-up: pain visual analog scale, Single Assessment Numeric Evaluation, American Shoulder and Elbow Surgeons shoulder score, and Rowe instability score.Results:A total of 30 patients met the inclusion criteria for the study. The mean ± SD follow-up was 96.60 ± 10.91 months. At final follow-up, the mean visual analog scale score improved from 8.17 ± 1.6 to 1.63 ± 1.90 (P < .0001), the Single Assessment Numeric Evaluation score from 41.65 ± 16.78 to 87.63 ± 13.02 (P < .0001), the American Shoulder and Elbow Surgeons score from 36.47 ± 10.26 to 88.07 ± 13.94 (P < .0001), and the Rowe score from 35.33 ± 6.56 to 90.00 ± 14.68 (P < .0001). Three patients reported postoperative complications, and 1 progressed to further surgery. Overall, 90% of patients remained on active duty military service and were able to return to preinjury levels of work and recreational activity. The failure rate, defined as persistent instability or activity-limiting pain, was 10%.Conclusion:The results of this study demonstrated favorable outcomes for the majority of patients after arthroscopic repair of type VIII SLAP lesions at midterm follow-up, supporting repair as a viable treatment option for type VIII SLAP tears in this patient population.

The Painful Anterior Apprehension Test - an Indication of Occult Shoulder Instability.

Introduction:To evaluate the clinical relevance of the painful anterior apprehension test in shoulder instability.Materials and methods:We performed a retrospective study of 155 patients that underwent arthroscopic anterior Bankart repair between 2014–2016. Exclusion criteria were previous ipsilateral shoulder surgery, bony Bankart lesions, glenohumeral osteoarthritis and concomitant surgery involving rotator cuff tears, biceps tendon pathology and superior labrum from anterior to posterior (SLAP) lesions. The study cohort was divided into three groups: apprehension test with apprehension only, apprehension test with pain only, and apprehension test with both apprehension and pain. Patient demographics, clinical characteristics, radiological imaging, arthroscopy findings and surgical outcomes (Constant, American Shoulder and Elbow Surgeons (ASES), SF-36 scores) were evaluated.Results:A total of 115 (74.2%) had apprehension only, 26 (16.8%) had pain only and 14 (9.0%) had pain and apprehension with the apprehension test. Univariate analysis showed significant differences between the groups in patients with traumatic shoulder dislocation (p=0.028), patients presenting with pain (p=0.014) and patients presenting with recurrent dislocations (p=0.046). Patients with a purely painful apprehension test were more likely to have a traumatic shoulder dislocation, more likely to present only with pain, and less likely to present with recurrent shoulder dislocations. Multivariate analysis showed that none of these factors alone were significant as single predictors for shoulder instability. All three groups were otherwise similar in patient profile, MRI and arthroscopic assessments, and clinical outcomes of surgery. Excellent clinical outcomes were achieved in all groups with no difference in pre-operative and post-operative scores across all groups at all time points.Conclusion:The painful apprehension test may suggest underlying shoulder instability.

Return to Play in Adolescent Baseball Players after SLAP Repair (131)

Objectives:Superior labrum from anterior to posterior (SLAP) tears are increasingly common shoulder injuries in adolescent athletes who participate in repetitive overhead throwing. The purpose of this study is to evaluate adolescent baseball athletes who undergo SLAP repair in order to determine their long-term progression of play, surgical outcomes, and overall satisfaction with surgery.Methods:Patients between the ages of 10-19 who underwent a SLAP repair over a 10-year period from 2008-2018 with minimum two year follow-up were identified by a database query in the medical records of a single institution. From this cohort, non-baseball athletes and injuries to non-throwing shoulders were excluded. After identifying the cohort, patients were contacted via phone to complete functional outcome scores including Conway Score, Western Ontario Shoulder Instability (WOSI) Index, Kerlan-Jobe Orthopedic Clinic (KJOC) Shoulder and Elbow Score, Short Form 12 Mental (MCS)/Physical (PCS) survey and a custom return to play questionnaire.Results:During this time period, 59 baseball players met the inclusion criteria for this study and 76.3% (45/59) of patients were available to be contacted to complete final follow-up surveys at a minimum of 2 years. All patients were male with a mean age of 17.4 +/- 1.5 (14-19) years. The mean follow-up of this cohort was 5.3 +/- 2.6 (2.1-12.1) years. The overall return to play rate was 75.6% (34/45). The average time from surgery to initiation of throwing was 5.9 +/- 2.0 (2-12) months and the average time to return to full competition was 11.3 +/- 3.5 (6-22) months after the surgery. After the SLAP repair, those who returned to play continuing playing baseball competitively for 3.0 +/- 1.9 (0.5-8.0) years after surgery. At the time of final follow-up, 71.1% (32/45) of players had stopped playing baseball. Of those who had stopped playing competitive baseball, 12 (37.5%) reported it was because they were not recruited to the next level, 10 (31.3%) reported they lost the desire to play and 10 (31.3%) reported their shoulder prevented them from playing. The overall mean KOJC, WOSI, SF-12 MCS and SF-12 PCS scores were 60.0 +/- 27.4 (range, 0-100), 21.0+/-20.6% (0-73.8%), 55.2+/-3.9 (37.4-59.8) and 55.2+/-5.6 (range, 37.9-65.7) respectively. The overall satisfaction score was 83.2% with 86.7% (39/45) saying they given the opportunity they would undergo surgery again.Conclusions:The results of this study demonstrated a low return to play rate and low patient reported outcomes on baseball specific surveys among adolescent baseball players who underwent a SLAP repair. Mean functional outcome scores between pitchers and position players were not found to be significantly different. Based on these findings, orthopedic surgeons can better counsel their adolescent baseball players on expectations for future return to play and functional outcomes after SLAP repair.

Analysis of common shoulder injuries in collegiate baseball players

ABSTRACT Objectives: Baseball players are highly susceptible to shoulder injuries due to repetitive overhead throwing. The purpose of this study was to investigate men’s collegiate baseball shoulder injury rates and associated risk factors. Methods: Using the NCAA Injury Surveillance Program (ISP) database, shoulder injury data for men’s baseball players was analyzed from 2009-2010 through 2013–2014. Only the most common shoulder injuries were examined, including acromioclavicular (AC) sprain, anterior dislocation, biceps tear, biceps tendinitis, SLAP (superior labrum from anterior to posterior) tear, non-SLAP labral tear, rotator cuff tear, rotator cuff tendinitis, and shoulder impingement. Statistical analysis was performed using proportion ratios (PR). Statistical significance was initially defined as p < 0.05; a post-hoc Bonferroni adjustment was applied using a p < 0.005 threshold balancing the likelihood of false positive and false negative findings. Results: Overall, 138 shoulder injuries were identified of which 51.4% occurred during practice. Rotator cuff pathology represented 45.6% of all injuries, with rotator cuff tears significantly more likely to be season-ending injuries (PR 2.5, 95% CI 1.2–5.6, p = 0.019). Pitching or throwing was the mechanism of injury in 100% of players with rotator cuff tendonitis, 87.5% of SLAP tears, 70% of players with biceps tendinitis, and 67% of players with rotator cuff tears. Biceps tendinitis (PR 3.9, 95% CI 1.2–12.5, p = 0.024) and SLAP tears (PR 6.4, 95% CI 1.6–25.0, p = 0.008) were significantly more likely to be chronic. SLAP tears were significantly more likely to be recurrent (PR 5.5, 95% CI = 1.5–20.4, p = 0.010). Being a freshman or sophomore was significantly associated with a lower proportion of biceps tendinitis (PR = 0.2, 95% CI = 0.04–0.8, p = 0.028). All anterior shoulder dislocations occurred while running the bases or sliding, and AC sprains were significantly associated with contact (PR 20.6, 95% CI = 2.5–168.7, p = 0.0048). Conclusions: Repetitive overhead throwing in college baseball is a common cause of overuse shoulder injuries. These athletes are especially susceptible to rotator cuff pathology, which is significantly more likely to cause season-ending injuries. While we have to interpret these results in light of both adjusted and unadjusted p-values, this information signifies the importance of shoulder injury prevention strategies by physicians and trainers taking care of collegiate baseball players.

Arthroscopic treatment of isolated type 2 SLAP lesions in athletes: A systematic review

Superior Labrum From Anterior to Posterior (SLAP) lesions refer to a tear of the superior portion of the glenoid labrum that begins posteriorly and extends anteriorly to the mid-glenoid notch. Patients who sustain traumatic injuries to the shoulder girdle and also who undergo repetitive, overhead motions are at risk for SLAP lesions. Among the various types of SLAP lesions, type 2 lesion is the most common lesion encountered and is defined by 'superior labral fraying with stripping of the superior part of the labrum and attached biceps tendon from the underlying glenoid cartilage”. In superior labrum anterior and posterior (SLAP) tears, a common concern for patients is being able to return to their previous levels of activity after surgery, whereas clinicians are concerned with providing a consistent prognosis of successful return to participation after surgery. Thus, return to play (RTP) and patient satisfaction can be used as a vital measure of treatment success which has been evaluated by significantly fewer studies, especially in isolated type 2 SLAP repairs. The published outcomes of surgical treatment are inconsistent, with variable and suboptimal patient satisfaction rates and RTP. Thus, we wanted to address and reevaluate the current treatment, rehabilitation protocols, and outcome following arthroscopic repairs in order to expand the knowledge and give further insight into providing better management plan in these patients. This study used a systematic review of papers reporting arthroscopic treatment of isolated type 2 SLAP lesions with the main objective in trying to assess the effectiveness of arthroscopic repair, to determine patient satisfaction and RTP at previous level of activity, and to analyze the rehabilitation protocols being followed among all athletes who underwent repair of type 2 SLAP tears using various types of fixation.

Characteristics of Operative Shoulder Injuries in the National Collegiate Athletic Association, 2009-2010 Through 2013-2014.

Background:Injuries to the upper extremity among collegiate athletes are reported to account for approximately 20% of all injuries; however, little is known about the proportion of these injuries that require surgery.Purpose/Hypothesis:The purpose of this study was to examine all shoulder injuries that required a surgical intervention and were recorded in the National Collegiate Athletic Association (NCAA) Injury Surveillance Program (ISP). We hypothesized that contact would be the mechanism causing injuries most at risk for needing surgery and that dislocations would be the injuries most likely to require an operative intervention.Study Design:Cross-sectional study; Level of evidence, 3.Methods:Injury surveillance data between 2009-2010 and 2013-2014 for operative collegiate shoulder injuries and their associated sport exposures were analyzed.Results:A total of 185 operative shoulder injuries occurred over 3,739,004 athlete-exposures (AEs), for an overall incidence of 0.49 per 10,000 AEs. The sports with the highest incidence of operative injuries were men’s football (1.31/10,000 AEs), men’s wrestling (1.14/10,000 AEs), men’s ice hockey (0.60/10,000 AEs), women’s gymnastics (0.44/10,000 AEs), and men’s swimming (0.41/10,000 AEs). Men were significantly more likely than women to sustain operative injuries for all sports combined. Of the injuries that required surgical treatment, superior labrum from anterior to posterior (SLAP) tears (46.4%), other non-SLAP glenoid labrum tears (46.2%), anterior shoulder dislocations (33.3%), and posterior shoulder dislocations (30.0%) were seen most often. There was no significant difference in injury proportion ratios (IPRs) for injuries requiring surgery when comparing contact versus noncontact mechanisms of injury (IPR, 1.0 [95% CI, 0.6-1.6]). The incidence of operative injuries sustained during competition was significantly higher compared with during practice.Conclusion:The sports with the highest incidence of operative shoulder injuries were men’s football, men’s wrestling, men’s ice hockey, and women’s gymnastics. Operative shoulder injuries were more likely to occur during competition. SLAP tears, other non-SLAP glenoid labrum tears, and anterior shoulder dislocations had the highest incidence of requiring surgery. Athletes sustaining these injuries, along with their coaches and medical providers, may benefit from identifying collegiate sport participants who are at highest risk for sustaining an operative injury. This may assist in planning medical care and setting expectations, which may be critical to a young athlete’s career.

A technique for an arthroscopic proximal biceps tenodesis using a fork anchor.

Pathology to the proximal biceps tendon has the potential to be a major source of pain in the shoulder, secondary to complex superior labrum from anterior to posterior (SLAP) lesions, partial biceps tears, and subluxations. In order to restore function and improve the patient's quality of life, repair of these injuries is crucial. Tenodesis has long been the ideal treatment of persistent pain caused by pathology of the proximal biceps tendon. A biceps tenodesis helps prevent biceps pain and cramping during movement and avoids the cosmetic deformity associated with a biceps tenotomy. However, the location of the tenodesis and technique of the procedure itself have been debated throughout the literature. We present an arthroscopic biceps tenodesis technique in which the tendon is secured to the implant prior to implantation into the humerus to gain complete control of the tendon and ensure adequate fixation and tension.

Anterior Shoulder Instability with Concomitant Superior Labrum from Anterior to Posterior (SLAP) Lesion Compared to Anterior Instability without SLAP Lesion.

BackgroundThe aims of this study were to investigate the clinical characteristics of patients with combined anterior instability and superior labrum from anterior to posterior (SLAP) lesions, and to analyze the effect of concomitant SLAP repair on surgical outcomes.MethodsWe retrospectively reviewed patients who underwent arthroscopic stabilization for anterior shoulder instability between January 2004 and March 2013. A total of 120 patients were available for at least 1-year follow-up. Forty-four patients with reparable concomitant detached SLAP lesions (group I) underwent combined SLAP and anterior stabilization, and 76 patients without SLAP lesions (group II) underwent anterior stabilization alone. Patient characteristics, preoperative and postoperative pain scores, Rowe scores, and shoulder ranges of motion were compared between the 2 groups.ResultsPatients in group I had higher incidences of high-energy trauma (p = 0.03), worse preoperative pain visual analogue scale (VAS) (p = 0.02), and Rowe scores (p = 0.04). The postoperative pain VAS and Rowe scores improved equally in both groups without significant differences. Limitation in postoperative range of motion was similar between the groups (all p-value > 0.05).ConclusionsAnterior instability with SLAP lesion may not be related to frequent episodes of dislocation but rather to a high-energy trauma. SLAP fixation with anterior stabilization procedures did not lead to poor functional outcomes if appropriate surgical techniques were followed.

Magnetic resonance imaging arthrography following type II superior labrum from anterior to posterior repair: interobserver and intraobserver reliability.

BackgroundArthroscopic repair of type II superior labrum from anterior to posterior (SLAP) lesions is a common surgical procedure. However, anatomic healing following repair has rarely been investigated. The intraobserver and interobserver reliability of magnetic resonance imaging arthrography (MRA) following type II SLAP repair has not previously been investigated. This is of particular interest due to recent reports of poor clinical results following type II SLAP lesion repair.PurposeTo evaluate the MRA findings following arthroscopic type II SLAP lesion repair and determine its intraobserver and interobserver reliability.Study designCohort study (diagnosis), Level of Evidence, 2.MethodsTwenty-five patients with an isolated type II SLAP lesion (confirmed via diagnostic arthroscopy) underwent standard suture anchor-based repair. At a mean of 25.2 months post-operatively, patients underwent a standardized MRA protocol to investigate the integrity of the repair. MRAs were independently reviewed by two radiologists and a fellowship trained shoulder surgeon. The outcomes were classified as healed SLAP repair or re-torn SLAP repair.ResultsOn average, 54% of MRAs were interpreted as healed SLAP repairs while 46% of MRAs were interpreted as having a re-torn SLAP repair. Overall, only 43% of the studies had 100% agreement across all interpretations. The intraobserver reliability ranged from 0.71 to 0.81 while the interobserver reliability between readers ranged from 0.13 to 0.44 (Table 1).ConclusionThe intraobserver agreement of MRA in the evaluation of type II SLAP repair was substantial to excellent. However, the interobserver agreement of MRA was poor to fair. As a result, the routine use of MRA in the evaluation of type II SLAP lesion repair should be utilized with caution. A global evaluation of the patient, including detailed history and physical examination, is paramount in determining the cause of failure and one should not rely on MRA alone.

SLAP 병변의 이학적 검사법

With the increasing use of arthroscopy and MRI for the diagnosis of shoulder problems, SLAP (superior labrum from anterior to posterior) lesions are more commonly diagnosed, and the incidence of SLAP repair surgery is increasing. Clinical diagnosis of SLAP is difficult to achieve, and many specific physical exam maneuvers have been described. However, neither these exam maneuvers nor history can provide a definitive diagnosis of a SLAP lesion. Despite this limitation, it is helpful to establish a more precise and accurate examination and to construct a preoperative plan. The purpose of this article is to review the original descriptions for specific physical exam maneuvers in SLAP, along with statistical analysis where available. This will help clinicians in deciding which tests are useful, how they should be implemented, and how to interpret the results.

Mobility and Stability Adaptations in the Shoulder of the Overhead Athlete

Overhead athletes require a delicate balance of shoulder mobility and stability in order to meet the functional demands of their respective sport. Altered shoulder mobility has been reported in overhead athletes and is thought to develop secondary to adaptive structural changes to the joint resulting from the extreme physiological demands of overhead activity. Researchers have speculated as to whether these structural adaptations compromise shoulder stability, thus exposing the overhead athlete to shoulder injury. Debate continues as to whether these altered mobility patterns arise from soft-tissue or osseous adaptations within and around the shoulder. Researchers have used quantitative techniques in an attempt to better characterize these structural adaptations in the shoulders of overhead athletes. Throwing athletes have been shown to display altered rotational range of motion (ROM) patterns in the dominant shoulder that favour increased external rotation and limited internal rotation ROM. Throwers also show a loss of horizontal or cross-body adduction in the throwing shoulder when compared with the non-throwing shoulder. This posterior shoulder immobility in the throwing shoulder is thought by some researchers to be associated with reactive scarring or contracture of the periscapular soft-tissue structures (e.g. posterior capsule and/or cuff musculature); however, evidence of reactive scarring or contractures of the posterior-inferior capsule or cuff musculature from anatomic or noninvasive imaging studies is lacking. Conversely, translational ROM (laxity) has been consistently shown to be symmetric between dominant and non-dominant shoulders of overhead athletes. From a skeletal perspective, throwing shoulders are shown to have more humeral retroversion when compared with the non-throwing shoulder. Alterations in humeral retroversion are thought to develop over time in young pre-adolescent throwers when the proximal humeral epiphysis is not yet completely fused. Even though the evidence is inconclusive at the present time, there is more compelling evidence that leads us to believe that altered shoulder mobility in the overhead-throwing athlete is more strongly associated with adaptive changes in proximal humeral anatomy (i.e. retroversion) than to structural changes in the articular and periarticular soft tissue structures. In addition, this retroversion is thought to account for the observed shift in the arc of rotational ROM in overhead athletes. However, in some athletes, capsulo-ligamentous adaptations such as anterior-inferior stretching or posterior-inferior contracture may become superimposed upon the osseous changes. This may ultimately lead to pathological manifestations such as secondary impingement, type II superior labrum from anterior to posterior (SLAP) lesions and/or internal (glenoid) impingement. Overuse injuries in the overhead athlete are a common and perplexing clinical problem in sports medicine and, therefore, it is imperative for sports medicine clinicians to have a thorough understanding of the short- and long-term effects of overhead activity on the shoulder complex. It is our intention that the information presented will serve as a guide for clinicians who treat the shoulders of overhead athletes.