Comparison of short- and mid-term outcomes in patients following ream-and-run and anatomic total shoulder arthroplasties.

BACKGROUND: Anatomic total shoulder arthroplasty (aTSA) may not be an ideal treatment option for young and active patients due to potential activity restriction and concerns about glenoid loosening. The Ream-and-run (RnR) allows for the continuance of high-level activity without concerns of a glenoid component failure. Initial RnR publications are promising though more outcomes studies are needed. Therefore, our primary purpose was to compare outcomes at multiple timepoints between matched aTSA and RnR cohorts. Secondarily, we sought to examine relationships between patient-reported outcomes and preoperative glenoid pathoanatomy in our RnR cohort. Lastly, we examined postoperative radiographs to determine if the RnR successfully corrected glenoid pathoanatomy and humeral head decentering. METHODS: We performed a retrospective matched-cohort study comparing patients who underwent a RnR versus patients who underwent the aTSA procedure between 2017-2019. All patients had primary diagnoses of shoulder osteoarthritis and a minimum of 2-year follow-up. Simple Shoulder Test, American Shoulder and Elbow Surgeons (ASES), and daily and worst pain outcomes were compared between groups at 3- and 6-months, and 1- and 2-years post-arthroplasty. Pre- and Postoperative glenoid anatomy and humeral decentering were measured radiographically, and correlation analyses were conducted to explore relationships between these factors and 2-year pain and function scores. RESULTS: Forty-six shoulders (23 RnR/ 23aTSA) belonging to 43 male patients with an average age of 56.2±8.3 were included. Eighteen matched pairs were available at 3- and 6- months, 21 matched pairs at 1 year, and all 23 matched pairs at the 2-year timepoint. RnR patients reported significantly higher daily pain ratings (P = .047) and lower ASES scores (P = .031) compared to the aTSA group 3 months after arthroplasty but reported similar outcomes at 6 months and beyond. Preoperative pathoantatomy outcomes were not directly related to final reported pain or function in RnR group. Additionally, the RnR was able to correct posterior humeral head decentering in our cohort. CONCLUSIONS: Young male patients undergoing RnR can likely expect similar short-term results as young male patients who undergo aTSA. Additionally, the RnR outcomes were not affected by preoperative glenoid wear or humeral head decentering. Our findings support the RnR as a viable surgical alternative for young, active patients with shoulder arthritis.

Side-to-side differences in postoperative function and patient satisfaction after bilateral total shoulder arthroplasties.

BACKGROUND: As the number of anatomic and reverse total shoulder arthroplasty (TSA) procedures increase, there will be a natural increase in patients who undergo staged bilateral TSA procedures. Bilateral TSAs have been shown to improve patient outcomes; however, it is unknown whether these patients experience side-to-side differences in clinical outcomes and satisfaction between shoulders. Understanding these differences is imperative for accurate patient and provider expectations. METHODS: An international multicenter registry was used to identify patients who underwent staged bilateral TSAs from April 2007 to October 2019 with a minimum of 2-year follow-up. American Shoulder and Elbow Surgeons Standardized Shoulder Assessment Form (ASES) outcomes and satisfaction ratings were compared between dominant and nondominant shoulders, and first and second arthroplasties. Side-to-side differences in postoperative ASES and unequal satisfaction ratings were also explored by using regression analyses to identify potential factors influencing these differences. RESULTS: A total of 60 patients (22 bilateral anatomic TSAs, 38 bilateral reverse TSAs) were identified for inclusion. Group analyses revealed that bilateral TSA patients demonstrated similar functional outcomes and satisfaction regardless of dominance and surgery sequence. Type of TSA, specifically bilateral reverse TSAs, significantly predicted greater side-to-side differences in postoperative ASES scores (P = .025), indicating reverse TSA patients demonstrated greater between-sides differences in postoperative functional outcomes compared with those undergoing anatomic TSAs. Additionally, a larger proportion of bilateral reverse TSA patients reported unequal satisfaction between shoulders (31.6%) compared with anatomic TSA patients (9.1%). Logistic regression analysis revealed that greater side-to-side differences in postoperative ASES scores were found to increase the likelihood of reporting unequal satisfaction between shoulders (odds ratio 1.11, P < .001), which may explain this outcome. CONCLUSIONS: Most patients who undergo bilateral TSAs can expect similar outcomes on both shoulders regardless of dominance and surgery sequence. However, we did find patients who had discordant results between shoulders. Those who underwent reverse TSAs more frequently reported unequal satisfaction with their TSA procedures, which is likely due to larger side-to-side differences in postoperative function. It is unclear why these differences occurred, but this information may be important for providers to remember when counseling these patients for accurate postoperative expectations.

Injury-Related Fear in Individuals With and Without Chronic Ankle Instability: A Systematic Review.

CONTEXT: Injury-related fear has recently been recognized to exist in ankle sprain populations. It is unclear, however, if injury-related fear levels differ between those who develop chronic ankle instability (CAI) and those who do not and the best tools for assessing these differences. OBJECTIVE: The purpose of this study was to conduct a comprehensive systematic review investigating differences in injury-related fear between individuals with and without CAI. EVIDENCE ACQUISITION: Relevant studies from CINAHL Plus with full text, PubMed, and SPORTDiscus through November 2020 were included. All studies used the Tampa Scale of Kinesiophobia, Fear-Avoidance Beliefs Questionnaire, or Athlete Fear Avoidance Questionnaire as either a descriptor or a main outcome and provided comparison data between a CAI group and ankle sprain copers (COP) or controls (CON). The authors independently assessed methodological quality using the modified Downs and Black Quality Index. Studies were then grouped by between-group comparisons including CAI and CON, CAI and COP, and COP and CON. The authors calculated Hedge g effect sizes and 95% confidence intervals to examine group differences. EVIDENCE SYNTHESIS: A total of 11 studies were included in this review. In total, 8 studies provided data for the CAI and CON comparison, 7 for CAI and COP comparisons, and 4 for COP and CON comparisons. Methodological quality scores ranged from 60.0% to 86.7%, with 2 high-, and 9 moderate-quality studies. Overall, the evidence suggests that physically active individuals with CAI report higher levels of injury-related fear when compared with both COP and CON. Although limited, ankle sprain COP do not seem to differ from CON. CONCLUSION: Available evidence emphasizes the importance of injury-related fear in individuals who develop chronicity after ankle sprain injury. The Fear-Avoidance Beliefs Questionnaire and Tampa Scale of Kinesiophobia are useful for the identification of injury-related fear in individuals after sustaining an ankle sprain and should be used to inform rehabilitation strategies and to monitor efficacy in fear reduction.

Influences of Athletic Trainers' Return-to-Activity Assessments for Patients With an Ankle Sprain.

CONTEXT: Athletic trainers (ATs) inconsistently apply rehabilitation-oriented assessments (ROASTs) when deciding return-to-activity readiness for patients with an ankle sprain. Facilitators and barriers that are most influential to ATs' assessment selection remain unknown. OBJECTIVE: To examine facilitators of and barriers to ATs' selection of outcome assessments when determining return-to-activity readiness for patients with an ankle sprain. DESIGN: Cross-sectional study. SETTING: Online survey. PATIENTS OR OTHER PARTICIPANTS: We sent an online survey to 10 000 clinically practicing ATs. The survey was accessed by 676 individuals, of whom 574 submitted responses (85% completion rate), and 541 respondents met the inclusion criteria. MAIN OUTCOME MEASURE(S): The survey was designed to explore facilitators and barriers influencing ATs' selection of pain; ankle-joint swelling, range of motion, arthrokinematics, and strength; balance; gait; functional capacity; physical activity level; and patient-reported outcome assessments when making return-to-activity decisions for patients after an ankle sprain. The survey asked for reasons that participants chose to use or not use each measure (eg, previous education, personal comfort, most appropriate, available or feasible, perceived value, and other). The survey contained 12 demographic items that characterized the sample of respondents and were examined as potential influences on the facilitators and barriers. Chi-square analysis was used to identify relationships among participant demographics and facilitators of or barriers to assessment selection. RESULTS: Selection of each ROAST and non-ROAST was most commonly facilitated by previous education, availability or feasibility, or perceived value. Avoidance of each ROAST was most often caused by the lack of previous education, availability or feasibility, or perceived value. The presence of facilitators and barriers was affected by various demographic variables. CONCLUSIONS: A variety of facilitators and barriers affected ATs' implementation of expert-recommended assessments when determining return-to-activity readiness in patients with an ankle sprain. Some subpopulations of ATs experienced more favorable or prohibitive conditions for assessment use.

Perceived Instability, Pain, and Psychological Factors for Prediction of Function and Disability in Individuals With Chronic Ankle Instability.

CONTEXT: Chronic ankle instability (CAI) is associated with residual instability, pain, decreased function, and increased disablement. Injury-related fear has been associated with CAI, although its relationship to other impairments is unclear. The fear-avoidance model is a theoretical framework hypothesizing a relationship among pain catastrophizing, injury-related fear, chronic pain, and disability. It has been useful in understanding fear's influence in other musculoskeletal conditions but has yet to be studied in those with CAI. OBJECTIVE: To explore relationships among instability, pain catastrophizing, injury-related fear, pain, ankle function, and global disability in individuals with CAI. DESIGN: Cross-sectional study. SETTING: Anonymous online survey. PATIENTS OR OTHER PARTICIPANTS: A total of 259 people, recruited via email and social media, with a history of ankle sprain completed the survey; of those, 126 participants (age = 32.69 ± 4.38 years, females = 84.92%, highly active = 73.81%) were identified as having CAI and were included in the analysis. MAIN OUTCOME MEASURE(S): Demographics of gender identity, age, and physical activity level were recorded. Assessments used were the Identification of Functional Ankle Instability questionnaire (instability), the Pain Catastrophizing Scale (pain catastrophizing), the Tampa Scale of Kinesiophobia-11 (injury-related fear), a numeric pain rating scale and activity-based question (pain presence), the Quick Foot and Ankle Ability Measure (ankle function), and the modified Disablement in the Physically Active Scale (disability). Relationships among variables were explored through correlation and regression analyses. RESULTS: After we controlled for instability and pain, pain catastrophizing and injury-related fear were significantly related to function and disability ratings in individuals with CAI. Together, the variables predicted 48.7% (P < .001) of the variance in function and 44.2% (P < .001) of the variance in disability. CONCLUSIONS: Greater instability, pain catastrophizing, injury-related fear, and pain predicted decreased function and greater disability in those with CAI. These findings are consistent with the hypothesized relationships in the fear-avoidance model, although further investigation is needed to determine causality of these factors in the development of CAI.

Assessments Used by Athletic Trainers to Decide Return-to-Activity Readiness in Patients.

CONTEXT: Patients with ankle sprains are often cared for by athletic trainers (ATs). Expert consensus was previously established for Rehabilitation-Oriented Assessments (ROASTs) that should be included in ankle sprain evaluations. However, it is unknown what methods ATs use to determine return-to-activity readiness following an ankle sprain. OBJECTIVE: Our purpose was to identify ATs' methods for determining patients' return-to-activity readiness following an ankle sprain and demographic determinants of ATs' methods. SETTING: Online survey Study Design: Cross-sectional study Level of Evidence: CEBM Level 1 Participants: We recruited 10,000 clinically practicing ATs. A total of 676 accessed the survey, 574 submitted responses (85% completion rate), and 541 respondents met inclusion criteria. MAIN OUTCOME MEASURES: We distributed an online survey to participants to ask them about their assessment of pain, swelling, range of motion, arthrokinematics, strength, balance, gait, functional capacity, physical activity level, and patient-reported outcomes in deciding return-to-activity. Descriptive statistics characterized participant demographics and frequencies of assessment measures used by ATs. Chi-square analyses identified relationships between demographics and assessment selection. RESULTS: Pain, swelling, range of motion, strength, balance, gait, and functional capacity were assessed by 76-97% of ATs. Arthrokinematics, physical activity level, and patient-reported outcomes were assessed by 25-36% of participants. When selecting specific assessment methods, ATs often did not use recommended ROASTs. ATs with higher degrees, more advance educational programs, employment in non-traditional settings, more clinical experience, and familiarity with expert consensus recommendations were more likely to use ROASTs. CONCLUSIONS: Before approving return-to-activity for patients with ankle sprains, some recommended outcomes and assessment methods are not evaluated by ATs. Practice in non-traditional settings, more advanced degrees, more clinical experience, and familiarity with expert-consensus guidelines appear to facilitate use of ROASTs.

Lumbopelvic Stability and Trunk Muscle Contractility of Individuals with Chronic Ankle Instability.

BACKGROUND: Chronic ankle instability (CAI) results in hip neuromuscular impairments that can perpetuate dysfunction through reduced lumbopelvic stability and subsequent malpositioning of the lower body during functional movement. Lumbopelvic stability might be further impaired through changes in trunk muscular contractility. However, lumbopelvic stability and trunk muscle morphology have not been compared between individuals with and without CAI. PURPOSE: To compare lumbopelvic stability and trunk muscle contractility between individuals with and without chronic ankle instability (CAI) and determine if lumbopelvic stability and trunk muscle contractility are associated with self-reported function. STUDY DESIGN: Case-control study. METHODS: Ten individuals with CAI, 10 ankle sprain copers (COP), and 10 healthy controls (CON) participated. Diagnostic ultrasound imaging was used to assess transversus abdominis (TrA) and lumbar multifidus (LM) muscle contractility. A percent change in contraction thickness from rested to contracted conditions was calculated for each muscle. Lumbopelvic stability was assessed using unilateral hip bridge, trunk flexion endurance, Biering-Sorensen, and side plank tests. Self-reported function was measured with the Foot and Ankle Ability Measure Activity of Daily Living (FAAM-ADL) and Sport (FAAM-S) subscales. One-way ANOVAs and Cohen's d effect sizes compared scores on clinician and patient-reported outcomes between groups. Pearson product moment correlations analyzed associations between self-reported function and trunk muscle contractility and lumbopelvic stability. Significance was set a priori at P<0.05. RESULTS: COP had significantly greater TrA contractility than CAI (P<0.01, d=2.65[1.45,3.85]) and CON (P=0.03, d=1.05[0.08,1.94]). Although not statistically significant, a large effect size suggest that CAI had lower TrA contractility than CON (P=0.12, d=0.92[-0.03,1.80]). No differences existed for LM contractility or lumbopelvic stability tests. A moderate direct correlation (r=0.65, P=0.04) existed between CON's TrA contractility and FAAM-ADL scores. CONCLUSION: Deficits in TrA contractility are a novel finding among individuals with CAI. While LM contractility and lumbopelvic stability did not differ between groups, future research should continue to examine their relevance to CAI. LEVEL OF EVIDENCE: 3b.

Neural excitability of lower extremity musculature in individuals with and without chronic ankle instability: A systematic review and meta-analysis.

This systematic review and meta-analysis examined differences in lower extremity neural excitability between ankles with and without chronic ankle instability (CAI). We searched the literature for studies that compared corticomotor or spinal reflexive excitability between a CAI group and controls or copers, or between limbs of a CAI group. Random effects meta-analyses calculated pooled effect sizes for each outcome. Nineteen studies were included. Meta-analyses of motor thresholds of the fibularis longus (Z = 1.17, P = 0.24) and soleus (Z = 0.47, P = 0.64) exhibited no differences between ankles with and without CAI. Pooled data indicate that ankles with CAI had reduced soleus spinal reflexive excitability (Z = 2.18, P = 0.03) and significantly less modulation of the soleus (Z = 6.96, P < 0.01) and fibularis longus (Z = 4.75, P < 0.01) spinal reflexive excitability when transitioning to more challenging stances. Pre-synaptic inhibition was facilitated in ankles with CAI (Z = 4.05, P < 0.01), but no difference in recurrent inhibition existed (Z = 1.50, P = 0.13). Soleus spinal reflexive activity is reduced in those with CAI. Reduced ability of ankles with CAI to modulate soleus and fibularis longus reflexive activity may contribute to impaired balance.