Staying in the Game: Interventions for Managing Achilles Tendinopathy in the In-Season Athlete

ABSTRACT

Achilles tendinopathy is a common overuse injury that is traditionally managed with activity modification and a progressive eccentric strengthening program. This narrative review describes the available evidence for adjunctive procedural interventions in the management of midportion and insertional AT, specifically in the athletic population. Safety and efficacy data from available literature on extracorporeal shockwave therapy, platelet-rich plasma, high-volume injectate with or without tendon scraping, and percutaneous needle tenotomy are used to propose an algorithm for treatment of Achilles tendinopathy for the in-season athlete.

Use of extracorporeal shockwave therapies for athletes and physically active individuals: a systematic review

OBJECTIVE

To determine the efficacy of extracorporeal shockwave therapy (ESWT) and investigate outcomes following the use of ESWT for athletes and physically active individuals.

DESIGN

Systematic review.

DATA SOURCES

We followed the Preferred Reporting Items for Systematic Reviews and Meta-Analyses and searched four databases: PubMed (NLM), Embase (Elsevier), CINAHL Complete (EBSCO) and Web of Science (Clarivate).

ELIGIBILITY CRITERIA FOR SELECTING STUDIES

Included studies were randomised controlled trials, cohort and case-control studies, cases series and reports that evaluated outcomes following ESWT for athletes, physically active individuals and occupational groups requiring regular physical activity such as military cadets.

RESULTS

56 studies with 1874 athletes or physically active individuals were included. Using the Oxford level of evidence rating, included studies were 18 level I (32.1%), 3 level II (5.4%), 10 level III (17.9%), 13 level IV (23.2%) and 12 level V (21.4%). Based on the level I studies, ESWT may be effective alone in plantar fasciitis, lateral epicondylitis and proximal hamstring tendinopathy and as an adjunct to exercise treatment in medial tibial stress syndrome and osteitis pubis in athletes or physically active individuals. In most studies, athletes were allowed to continue activities and training and tolerated ESWT with minimal side effects.

CONCLUSION

ESWT may offer an efficacious treatment alone or as an adjunct to concurrent exercise therapy in selected sports-related injuries and without major adverse events. Further high-level research is needed to better define the role and clinical outcomes of ESWT.

Swimming Anatomy and Lower Back Injuries in Competitive Swimmers: A Narrative Review

CONTEXT

Competitive swimmers are at high risk of overuse musculoskeletal injuries due to their high training volumes. Spine injuries are the second most common musculoskeletal injury in swimmers and are often a result of the combination of improper technique, high loads on the spine in strokes that require hyperextension, and repetitive overuse leading to fatigue of the supporting trunk muscles. The purpose of this review is to summarize the current evidence regarding swimming biomechanics, stroke techniques, and common injuries in the lumbar spine to promote a discussion on the prevention and rehabilitation of lower back injuries in competitive swimmers.

EVIDENCE ACQUISITION

From a PUBMED/MEDLINE search, 16 articles were identified for inclusion using the search terms "swimming," "low back" or "lumbar," and "injury" or "injuries."

STUDY DESIGN

Narrative review.

LEVEL OF EVIDENCE

Levels 4 and 5.

RESULTS

The trunk muscles are integral to swimming stroke biomechanics. In freestyle and backstroke, the body roll generated by the paraspinal and abdominal muscles is integral to efficient stroke mechanics by allowing synergistic movements of the upper and lower extremities. In butterfly and breaststroke, the undulating wave like motion of the dolphin kick requires dynamic engagement of the core to generate repetitive flexion and extension of the spine and is a common mechanism for hyperextension injuries. The most common lower back injuries in swimming were determined to be lumbar strain, spondylolysis and spondylolisthesis, facet joint pain, and disc disease. Most overuse swimming injuries can be treated conservatively with physical therapy and training adjustments.

CONCLUSION

Managing swimmers with low back pain requires a basic knowledge of swimming technique and a focus on prevention-based care. Since most swimming injuries are secondary to overuse, it is important for providers to understand the mechanisms underlying the swimming injury, including an understanding of the biomechanics involved in swimming and the role of spine involvement in the 4 strokes that assist in stabilization and force generation in the water. Knowledge of the biomechanics involved in swimming and the significant demands placed on the spinal musculoskeletal system will aid the clinician in the diagnosis and management of injuries and assist in the development of a proper rehabilitation program aimed at correction of any abnormal swimming mechanics, treatment of pain, and future injury prevention.

STRENGTH OF RECOMMENDATIONS

B. Recommendation based on limited quality or inconsistent patient-oriented evidence.

The Combination of Depression and Obesity was Associated with Increased Incidence of Subsequent Total Knee Arthroplasty

OBJECTIVE

Compare the incidence of total knee arthroplasty (TKA) within the first 5 years after knee OA diagnoses between matched groups of individuals with or without comorbid diagnoses of obesity and/or depression. We hypothesized that the greatest incidence of TKA within 5 years of OA diagnosis would be in the cohort of individuals with combined obesity and depression.

METHODS

The PearlDiver Mariner Ortho157 database was used to identify four cohorts of individuals with knee OA based on diagnosis codes that were matched by age, sex, and Charlson Comorbidity Index: a group without diagnoses associated with depression or obesity (Control), those with obesity but not depression (Obesity), those with depression but not obesity (Depression), and those with diagnoses of both obesity and depression (Depression+Obesity). The incidence of subsequent TKA within the first 5 years after the index OA diagnosis were compared between the four matched cohorts.

RESULTS

Each cohort was comprised of 274,403 unique individuals (180,563 females, 93,840 males; age=55±7 y). The incidence of TKA was greatest for the Depression+Obesity group (11.9%) when compared to the Control group (8.3%, p<0.0001, RR=1.43 [95%CI:1.41,1.45]), the Obesity group (10.2%, p<0.0001, RR=1.13 [95%CI:1.11,1.14], p<0.0001) or Depression (7.8%, p<0.0001, RR=1.53 [95%CI:1.50,1.55], p<0.0001).

CONCLUSION

The incidence of subsequent TKA was greatest for those with the combination of obesity and depression when compared to the Control group and those with individual diagnosis of obesity or depression.

Aging Affects the Efficacy of Platelet-Rich Plasma Treatment for Osteoarthritis

OBJECTIVE

Despite the increased use of platelet-rich plasma in the treatment of osteoarthritis, whether and how age of the platelet-rich plasma donor affects therapeutic efficacy is unclear.

DESIGN

In vitro, male osteoarthritic human chondrocytes were treated with platelet-rich plasma from young (18-35 yrs) or old (≥65 yrs) donors, and the chondrogenic profile was evaluated using immunofluorescent staining for two markers of chondrogenicity, type II collagen and SOX-9. In vivo, we used a within-subjects design to compare Osteoarthritis Research Society International scores in aged mouse knee joints injected with platelet-rich plasma from young or old individuals.

RESULTS

In vitro experiments revealed that platelet-rich plasma from young donors induced a more youthful chondrocyte phenotype, as evidenced by increased type II collagen ( P = 0.033) and SOX-9 expression ( P = 0.022). This benefit, however, was significantly blunted when cells were cultured with platelet-rich plasma from aged donors. Accordingly, in vivo studies revealed that animals treated with platelet-rich plasma from young donors displayed a significantly improved cartilage integrity when compared with knees injected with platelet-rich plasma from aged donors ( P = 0.019).

CONCLUSIONS

Injection of platelet-rich plasma from a young individual induced a regenerative effect in aged cells and mice, whereas platelet-rich plasma from aged individuals showed no improvement in chondrocyte health or cartilage integrity.

Utilizing Extracorporeal Shockwave Therapy for in-Season Athletes

An athlete’s health and availability to train and compete at an optimal performance level is a growing focus for professional sports organizations [...]

Knee Extensor Mechanism Tendinopathy: Evaluation, Treatment, and Prevention

ABSTRACT

Knee extensor mechanism tendinopathy, including patellar and quadriceps tendinopathy, is common among athletes and those involved in jumping sports. It is largely a clinical diagnosis that presents as anterior knee pain and stiffness with associated tenderness over the affected tendon. Imaging modalities, including ultrasound and/or magnetic resonance imaging, may be helpful with the diagnosis of difficult cases or in the planning of interventional procedures. Focused and structured rehabilitation using eccentric or heavy slow resistance exercise in conjunction with load management is important for recovery. Adjuvant therapies (e.g., injections or surgery) may be necessary in recalcitrant cases or those with insufficient response to rehabilitation efforts. Prevention strategies focus on improving biomechanics, landing mechanism and lower-extremity balance, flexibility, and strength.

The aging athlete

Aging athletes, those 60 years and older, are a growing population of mature, active individuals who value sports and exercise participation throughout their lifespan. Although recommendations for younger and masters athletes have been extrapolated to this population, there remains a paucity of specific guidelines, treatment algorithms, and considerations for aging athletes. The benefits of living an active lifestyle must be weighed against the risks for unique cardiovascular, metabolic, and musculoskeletal injuries requiring diagnostic and therapeutic interventions. In this article, we review the unique cardiovascular and muscular physiology of aging athletes and how it influences the risk of specific medical conditions. We also discuss general prevention and treatment strategies. Finally, we identify areas of future research priorities and emerging treatments.

A Systematic Review of Systematic Reviews on the Epidemiology, Evaluation, and Treatment of Plantar Fasciitis

The number of systematic review and meta-analyses on plantar fasciitis is expanding. The purpose of this review was to provide a comprehensive summary of reviews on the topic pertaining to plantar fasciitis, identify any conflicting and inconsistent results, and propose future research direction. A qualitative review of all systematic reviews and meta-analyses related to plantar fasciitis up to February 2021 was performed using PubMed, Embase, Web of Science, and the Cochrane Database. A total of 1052 articles were initially identified and 96 met the inclusion criteria. Included articles were summarized and divided into the following topics: epidemiology, diagnosis, and treatment. While the majority of reviews had high level of heterogeneity and included a small number of studies, there was general consensus on certain topics, such as BMI as a risk factor for plantar fasciitis and extracorporeal shockwave therapy as an effective mode of therapy. A qualitative summary of systematic reviews and meta-analyses published on plantar fasciitis provides a single source of updated information for clinicians. Evidence on topics such as the epidemiology, exercise therapy, or cost-effectiveness of treatment options for plantar fasciitis are lacking and warrant future research.

American Medical Society for Sports Medicine Position Statement: Principles for the Responsible Use of Regenerative Medicine in Sports Medicine

ABSTRACT

Many sports medicine physicians are currently considering introducing regenerative medicine into their practice. Regenerative medicine and the subclassification of orthobiologics are a complicated topic and have produced widely varying opinions. Although there is concern by government regulators, clinicians, scientists, patient advocacy organizations, and the media regarding the use of regenerative medicine products, there is also excitement about the potential benefits with growing evidence that certain regenerative medicine products are safe and potentially efficacious in treating musculoskeletal conditions. Sports medicine physicians would benefit from decision-making guidance about whether to introduce orthobiologics into their practice and how to do it responsibly. The purpose of this position statement is to provide sports medicine physicians with information regarding regenerative medicine terminology, a brief review of basic science and clinical studies within the subclassification of orthobiologics, regulatory considerations, and best practices for introducing regenerative medicine into clinical practice. This information will help sports medicine physicians make informed and responsible decisions about the role of regenerative medicine and orthobiologics in their practice.

Research and Industry Partnerships in Physiatry

ABSTRACT

The Association of Academic Physiatrists, the home of academic physiatry, is interested in advancing industry partnerships in research among academic physiatrists. There are limited existing resources that outline opportunities for academic physiatrists in engaging the translational research continuum through industry partnerships and the skill sets that academic physiatrists need to successfully navigate these partnerships. In 2019, then President of the Association of Academic Physiatrists, John Chae, MD, ME, assembled a group of interested physician-scientists in physical medicine and rehabilitation to form the Research and Industry Partnerships Task Force to address this problem. The Task Force implemented a live educational session titled "Collaborating with industry" at Physiatry '19, the Annual Meeting of the Association of Academic Physiatrists held in Puerto Rico. To extend the reach of this valuable information, the Task Force is creating resources that can be easily distributed and accessed by all physiatrists. The goal of this white paper is to provide a roadmap to help academic physiatrists begin to navigate the field of academia-industry relationships with the ultimate goal of accelerating discovery for the benefit of physiatry and rehabilitation patients.

Achilles Tendinopathy: Evaluation, Rehabilitation, and Prevention

ABSTRACT

Achilles tendinopathy is a common overuse condition that is characterized by degenerative, cumulative tissue microtrauma. It is largely a clinical diagnosis in which the patient typically presents with localized pain that is worse with tendon-loading activities. Imaging modalities may be helpful with the diagnosis of difficult cases or in the planning of interventional procedures. Midportion (noninsertional) and insertional tendinopathy have distinct features and differences for therapeutic paradigms. Overall, Achilles tendinopathy has a good clinical prognosis with most patients improving with activity modification and rehabilitation, with a focus on progressive tendon-loading. Recalcitrant cases may require adjuvant treatment with procedures (e.g., injections, shockwave therapy) and rarely surgical intervention.

A Narrative Review Evaluating Extracorporeal Shockwave Therapy as a Potential Regenerative Treatment for Musculoskeletal Conditions in Military Personnel

INTRODUCTION

Extracorporeal shockwave therapy (ESWT) has a wide variety of clinical applications ranging from urology to orthopedics. Extracorporeal shockwave therapy is of particular interest to military medicine in the treatment of diverse musculoskeletal injuries, including recalcitrant tendinopathy. Much of the evidence for ESWT is from studies in the civilian population, including athletes. A few investigations have been conducted within military personnel. Musculoskeletal conditions within military personnel may contribute to pain and physical limitations. Optimal functional outcomes could be achieved through ESWT. The purpose of this narrative review is to summarize the current evidence on the efficacy of ESWT the in management of lower extremity musculoskeletal injuries in the military. Further, we explore the relative efficacy of ESWT compared to regenerative medicine procedures, including studies with treatment using platelet-rich plasma.

MATERIALS AND METHODS

A literature review was performed in April 2020 to identify studies evaluating the use of ESWT for lower extremity conditions commonly observed in military personnel, including plantar fasciitis, Achilles tendinopathy, patellar tendinopathy, medial tibial stress syndrome, and knee arthritis. The literature search was completed by two researchers independently, using PubMed and Embase databases and same search terms. Disagreements were adjudicated by a senior author. Due to the paucity of relevant search results, the search term parameters were expanded to incorporate active participants.

RESULTS

Two studies evaluated the use of ESWT in a military population for lower extremity injuries. This included a randomized control trial in active military with medial tibial stress syndrome and an unblinded retrospective study for the chronic plantar fasciitis condition. Both studies in the military had favorable outcomes in the use of ESWT compared to other treatment arms. The remaining studies predominantly included athletes. Although heterogeneity on the quality of the studies may prevent meta-analysis and limit the generalization of the findings, the majority of studies demonstrated an improvement in pain and return to activity using ESWT. Two studies using platelet-rich plasma as a treatment arm identified similar short-term outcomes compared to ESWT for Achilles tendinopathy and patellar tendinopathy.

CONCLUSION

Our findings suggest that ESWT is a safe and well-tolerated intervention with positive outcomes for lower extremity conditions commonly seen in the military. The few studies comparing ESWT to PRP suggest regenerative benefits similar to orthobiologics in the shorter term. More robust quality designed research may enable the evaluation of ESWT efficacy within the military population. In summary, the use of ESWT may provide pain reduction and improved function in active populations with lower extremity musculoskeletal injuries. Further research in the military is needed to evaluate shockwave efficacy in order to advance musculoskeletal care and improve outcomes.

Non-operative orthobiologic use for rotator cuff disorders and glenohumeral osteoarthritis: A systematic review

BACKGROUND

Shoulder pain from rotator cuff pathology and glenohumeral osteoarthritis is a common entity encountered in musculoskeletal practices. Orthobiologic agents are being increasingly used as a treatment option and understanding their safety and efficacy is necessary.

OBJECTIVE

To systematically evaluate the available evidence for orthobiologic use in rotator cuff and glenohumeral pathology.

METHODS

A systematic review was undertaken following PRISMA guidelines. Randomized clinical trials (RCTs) and prospective cohort studies evaluating non-operative treatment with prolotherapy, platelet-rich plasma (PRP), or medicinal signaling cells (MSCs) for rotator cuff pathology and glenohumeral osteoarthritis were included. Bias risk assessments used were the Cochrane tool and Newcastle-Ottawa score.

RESULTS

The search yielded 852 potential articles, of which 20 met the inclusion criteria with a breakdown of 5 prolotherapy, 13 PRP, and 2 MSC. Sixteen studies were RCTs and 4 were cohort studies. Six studies were deemed "low risk of bias or good quality". Efficacy results were mixed, and no serious adverse events were reported from orthobiologic treatment.

CONCLUSIONS

Orthobiologics offer a relatively safe management option with inconclusive evidence for or against its use for rotator cuff pathology. No studies on glenohumeral osteoarthritis met the inclusion criteria. Adoption of standardized preparation reporting and consistent use of functional outcome measures is imperative for future studies to consider.

Functional outcomes in the inpatient rehabilitation setting following severe COVID-19 infection

OBJECTIVE

To characterize the functional impairments of a cohort of patients undergoing inpatient rehabilitation after surviving severe COVID-19 illness, in order to better understand the ongoing needs of this patient population.

METHODS

This study consisted of a retrospective chart review of consecutive patients hospitalized for COVID-19 and admitted to a regional inpatient rehabilitation hospital from April 29th to May 22nd, 2020. Patient demographics, clinical characteristics and complications from acute hospitalization were examined. Measures of fall risk (Berg Balance Scale), endurance (6 Minute Walk Test), gait speed (10 Meter Walk Test), mobility (transfer and ambulation independence), cognition, speech and swallowing (American Speech and Hearing Association National Outcomes Measurement System Functional Communication Measures) were assessed at rehabilitation admission and discharge.

RESULTS

The study population included 29 patients and was 70% male, 58.6% white and with a mean age of 59.5. The mean length of acute hospitalization was 32.2 days with a mean of 18.7 days intubated. Patients spent a mean of 16.7 days in inpatient rehabilitation and 90% were discharged home. Patients demonstrated significant improvement from admission to discharge in measures of fall risk, endurance, gait speed, mobility, cognition, speech and swallowing, (p< 0.05). At discharge, a significant portion of the population continued to deficits in cognition (attention 37%; memory 28%; problem solving 28%), balance (55%) and gait speed (97%).

CONCLUSION

Patients admitted to inpatient rehabilitation after hospitalization with COVID-19 demonstrated deficits in mobility, cognition, speech and swallowing at admission and improved significantly in all of these domains by discharge. However, a significant number of patients exhibited residual deficits at discharge highlighting the post-acute care needs of this patient population.

Prevalence of total hip and knee arthroplasty in former National Football League players: comparison with the general US population and other populations of professional athletes

Objectives: To evaluate the prevalence of total hip arthroplasty (THA) and total knee arthroplasty (TKA) in a population of former National Football League (NFL) players. Methods: Participants were 3913 former NFL players (participation in years 1960–2019) who completed either an online or mailed survey that included self-reported TKA and THA, year(s) of surgery and date of birth. The prevalence of TKA and THA was reported by age category and compared to published cohorts of athlete populations and general population of non-athletes in the USA. Results: 12.3% and 8.1% of sample reported TKA and THA, respectively. The prevalence of both TKA and THA was higher in former NFL players compared to US non-athletes across all ages. Prevalence of TKA was not statistically higher than in other former athlete cohorts but performed at younger ages. The prevalence of TKA and THA was higher than in other cohorts of former NFL players. Conclusion: Former NFL players had higher prevalence of arthroplasty than the general population, suggesting prior participation in American-style football may contribute to elevated risk for arthroplasty at younger ages. Understanding risk factors in style of play, lifestyle and other contributors is important to improve joint health of this population.

Telemedicine During COVID-19 for Outpatient Sports and Musculoskeletal Medicine Physicians

Introduction

The global pandemic due to SARS‐CoV‐2 has resulted in an expansion of telemedicine. Measures of quality and barriers for rapid use by patients and physicians are not well described.

Objective

To describe results from a quality improvement initiative during a rapid adoptive phase of telemedicine during the pandemic.

Design

Patient and physician satisfaction with synchronous audiovisual telemedicine visits was measured during the early adoptive phase (6 April 2020‐17 April 2020) within the division of sports medicine in an academic Physical Medicine and Rehabilitation (PM&R) department. Patients were invited to participate in a quality improvement initiative by completing an online survey at the end of a telemedicine visit. Physicians completed a separate survey.

Primary Outcome Measures

Patient measures included visit type, duration of encounter, quality, and satisfaction. Physicians reported on experiences performed telemedicine.

Results

Surveys were completed by 119 patients (293 telemedicine encounters, response rate 40.6%) and 14 physiatrists. Telemedicine was utilized primarily for follow‐up visits (n = 74, 70.6%), and the most common duration was 15 to 29 minutes. Patients rated their telemedicine visit as “excellent” or “very good” across measures (91.6%‐95.0%) including addressing concerns, communication, developing a treatment plan, convenience, and satisfaction. Value of completing a future telemedicine visit was measured at 84.9%. Most reported estimated travel time saved was in excess of 30 minutes. Rate of no‐show was 2.7%. Most physicians (57.1%) had no prior experience with telemedicine visits, and most were comfortable performing these visits after completing 1 to 4 sessions (71%). Nearly all physicians (92.9%) rated their telemedicine experience as very good or excellent. The key barrier identified for telemedicine was technical issues. All physicians reported plans to perform telemedicine visits if reimbursement continues.

Conclusions

In summary, rapid expansion of telemedicine during the COVID‐19 pandemic was well‐received by a majority of patients and physicians. This suggests feasibility in rapid expansion of telemedicine for other outpatient sports medicine practices.