Physical Therapists Forward Deployed on Aircraft Carriers: A Retrospective Look at a Decade of Service

Point of Care Ultrasound Guided Management of Lateral Ankle Sprains: A Case Series

Background

Lateral ankle sprain (LAS) is a common injury with incidence rates reported at 7.2 per 1000 person-years. Physical examination strategies provide limited information to guide rehabilitation that can maximize clinical outcomes. Early and accurate diagnostic information using ultrasound imaging enables individualized care and the ability to monitor healing along with its response to activity and rehabilitation.

Purpose

The purpose of this study was to describe and observe the outcomes associated with Point of Care Ultrasound (POCUS) guided early management of acute and sub-acute lateral ankle sprains.

Study Design

Case series.

Methods

Individuals with a LAS within the prior 28 days underwent a clinical evaluation to include a POCUS exam to assess ligamentous integrity. Objective and POCUS findings were integrated to classify each LAS into one of four categories. Each grade of ankle sprain corresponded to levels of bracing for the protection of injured structures with each patient receiving physical therapy care based on rehabilitation guidelines. Participants completed the Foot and Ankle Ability Measure (FAAM) activities of daily living and Sports subscale, the Foot and Ankle Outcome Score (FAOS), Patient Reported Outcomes Measurement Information Systems Global Health, Tampa Scale of Kinesiophobia (TSK-11), Cumberland Ankle Instability Tool (CAIT), and the Numeric Pain Rating Scale as well as the Ankle Lunge Test and Figure 8 measurements at baseline, 4 weeks, 8 weeks and 12 weeks post enrollment. The FAAM Sport subscale, all FAOS subscales, and the TSK-11 were also collected at 24 weeks while the CAIT was collected at baseline and 24 weeks.

Results

Fourteen participants were enrolled with 11 participants completing all data collection. FAAM Sport scores significantly improved at 4, 8, 12 and 24 weeks. All components of the FAOS significantly increased except for Sport scores at four weeks and Quality of Life scores at four and eight weeks.

Conclusion

POCUS guided early management and ligamentous protection of LASs resulted in significant short and long-term improvement in function and return to sporting activity. This case series highlights the feasibility of using ultrasound imaging to assess the severity of ligamentous injury and align bracing strategies for ligamentous protection. The observations from this case series suggest that functional bracing strategies focused on ligamentous protection to promote healing and reduce re-injury rates does not delay improvement in functional outcomes.

Level of Evidence

Level IV, Case Series.

Physical Therapists Ordering Imaging and Making Direct Referrals in a Military Healthcare Setting; Two Case Studies

Physical therapists in the military are allowed some of the widest scope-of-practice privileges in the USA. These privileges include ordering imaging, making direct referrals, and serving as direct-access providers. This independent functioning model may help contribute to more efficient and effective patient care. In this study, two cases are presented to highlight the decision-making process of physical therapists who were able to order imaging and make direct referrals that contributed to successful patient outcomes. The purpose of this study is 2-fold: (1) to highlight physical therapists ordering diagnostic imaging and (2) to correlate physical therapists making direct referrals. The first case involves an active duty military female who sustained an ankle injury. She was referred to physical therapy and underwent conservative treatment with minimal progress. The physical therapist used her privileges to order imaging, interpreted the findings, and referred the patient to an experienced podiatric surgeon. The second case involves an active duty military male who sustained a knee injury. He was referred directly to physical therapy by the hospital urgent care. The military physical therapist evaluated him and determined that an orthopedic referral was necessary. Both of the prior mentioned cases resulted in successful outcomes, with patients returning to their prior level of function. In the military healthcare setting, physical therapists have a unique set of practice privileges that can contribute to timely patient management, improved patient satisfaction, and more efficient and effective care. This healthcare model may be considered in civilian settings in the future as well.

Incidence and Mechanisms of Musculoskeletal Injuries in Deployed Navy Active Duty Service Members Aboard Two U.S. Navy Air Craft Carriers

INTRODUCTION

This brief report describes the number and nature of cases of musculoskeletal pain and injury among sailors and marines presenting to the ship's physical therapist during recent, respective deployments of two U.S. Navy aircraft carriers.

MATERIALS AND METHODS

The case definition for this study was cases of work-limiting medical complaints involving the musculoskeletal system presenting, or referred, to the ship's physical therapy services for evaluation and treatment. The population for this study was drawn from ship's company from two Nimitz class carriers on their respective deployments. Potential subjects were recruited at their index visit for their complaint. Participants completed a survey of their symptoms while at the ship's medical department. Data for analysis consist of counts of cases, body part affected, self-reported mechanism of injury, age, and gender of the subject. Data were analyzed by generating descriptive tables.

RESULTS

One hundred ninety-seven cases were captured across the two carriers. Injury to the low back was the most frequent (34%), followed by shoulder (25%) and knee (15%). Twenty one cases (11%) were reported to be exacerbation of previous injuries and the rest new injuries. Of the 176 new injury cases, 93 (53%) were of an insidious onset and the remainder had a specific, identifiable onset. Of the 82 cases with a specific identifiable onset, 38 cases (46%) occurred during participation in sport and exercise activity on board ship, and the remainder of the cases occurred during the performance of duty-related work. None of the cases required evacuation off of the ship.

CONCLUSION

Care should be used interpreting the results since participants were volunteers and a small proportion of eligible subjects chose not to participate in the study. Nevertheless, our data are generally consistent with other studies of musculoskeletal injury on board U.S. Navy ships and are useful for health care planning purposes and for planning for future studies that may take place on board U.S. Navy vessels. The novel and important finding of this study suggests that sports and exercise activity on board ship may warrant a new area of attention for safety.