Physical medicine and rehabilitative services are designed to improve, maintain, prevent, or slow further deterioration of an individual's current condition after loss of physical functioning due to disease, injury, or loss of a body part. Clinicians use the clinical history, systems review, physical examination, and a variety of evaluations to determine the impairments, functional limitations, and disabilities of the individual. Impairments, functional limitations, and disabilities thus identified are then addressed by the design and implementation of a plan of care tailored to the specific needs of the individual. Specific interventions are selected, applied, or modified based on examination data, evaluation, diagnosis and prognosis, and anticipated goals and expected outcomes.
Physical medicine and rehabilitation services are covered when performed with the expectation of improving, restoring, and/or compensating for loss or reduction of the individual's physical function due to injury or illness. Therapy performed repetitively to maintain the same level of function is not eligible for reimbursement.
A maintenance program consists of activities that preserve the individual's present level of function and prevent regression of that function. During the last visits for rehabilitative treatment, it is reasonable and medically necessary for the clinician to develop a maintenance program and to instruct the individual, family member(s), or caregiver(s) in carrying out the maintenance program. Additionally, individuals with long-term, chronic conditions may occasionally need skilled input to update or revise their home maintenance program and to assess the need for new (or changes to existing) assistive or adaptive equipment.
Physical therapy (PT) is a medically prescribed treatment for physical disabilities or impairments that result from disease, injury, congenital anomaly, and/or prior therapeutic intervention. PT employs the use of therapeutic exercise and other interventions that focus on locomotion, strength, endurance, balance, coordination, joint mobility, flexibility, and the functional activities of daily living. The most commonly used interventions are exercise, heat, cold, electric energy, electric stimulation, ultraviolet light, ultrasound, hydrotherapy, manual therapy, and massage.
Occupational therapy (OT) is a medically prescribed intervention that involves the therapeutic use of self-care and other purposeful activities designed to help individuals with physical or developmental impairments increase independence with activities of daily living, enhance development, and/or prevent disability. OT does not include services specifically directed toward the improvement of vocational skills and social functioning.
Orthotic management and prosthetic management is used to enhance the performance of tasks or movements, support weak or ineffective joints or muscles, reduce/correct joint limitations/deformities, and/or protect body parts from injury.
Prosthetic evaluation to ensure correct fit during functional activities (e.g., checking for skin integrity where the prosthetic device may apply pressure) is one test and measurement for orthotic and prosthetic management.
Therapeutic procedures are time-based physical medicine procedures that require direct one-on-one contact. These procedures are part of a short-term, goal-directed plan of care for an acute problem or condition that requires skilled intervention. These include treatments that attempt to reduce impairments and improve, restore, and/or compensate for loss of function through the application of clinical skills and services.
LOW VISION
According to the American Optometric Association (AOA), low vision is defined as noncorrectable reduced vision. The AOA stratifies low vision by level of visual impairment as outlined below:
- Near-Normal Vision (20/30 to 20/60)
- Moderate Low Vision (20/70 to 20/160)
- Severe Low Vision (20/200 to 20/400)
- Profound Low Vision (20/500 to 20/1,000)
- Near-Total Blindness (less than 20/1,000)
- Total Blindness (no light perception)
Diagnostic examinations for low vision may include visual acuity testing, ocular motility assessments, and visual field integrity assessments. Services provided for individuals with low vision may include training to improve skills and functioning for activities of daily living. These services are provided by or under the supervision of an organized staff of eligible professional providers.
SCHROTH THERAPY
Schroth therapy, or physiotherapy scoliosis-specific exercises (PSSEs) (as this intervention is sometimes referred to in the literature), is a treatment modality for adolescent idiopathic scoliosis (AIS) developed by Katharina Schroth in the early 20th century. While the modality has been modified over the years, the key principles have remained constant and involve auto correction, elongation, and chest wall expansion with integration of the “corrected” posture into daily life activities.
A 2012 Cochrane collaboration meta-analysis comprises the most comprehensive review of this intervention to date. In that study, Romano et al. reported the findings of a review of the literature investigating the efficacy and utility of PSSEs in the treatment of adolescents with AIS. Upon searching numerous databases for randomized controlled trials (RCTs) and prospective cohort studies, the authors' final review ultimately included two studies reporting on outcomes in 154 individuals. The primary outcomes of interest were progression of scoliosis (measured by Cobb angle in degrees), cosmetic issues, quality of life and disability, back pain, and psychological issues. Secondary outcomes were adverse events as identified in clinical trials. The authors found that there is a scarcity of high-quality evidence (only one RCT and one prospective cohort study). The included RCT found low-quality evidence that PSSE exercises as an adjunctive to other conservative treatments increase the efficacy of these treatments (thoracic curve reduced: mean difference [MD], 9.00; confidence interval [CI], 5.47–12.53); lumbar curve reduced: MD, 8.00; 5.08–10.92). The prospective cohort study similarly found that PSSEs structured with in an exercise program can reduce brace prescription (RR: 0.24; 0.06–1.04) as compared to typical physiotherapy. The authors concluded that there is a lack of high-quality evidence to recommend the use of PSSE for AIS and that better quality research needs to be conducted before the use of PSSE can be recommended in clinical practice.
Notable professional societies in the field of scoliosis treatment similarly note the dearth of high-quality evidence for Schroth therapy in the literature presently: the Scoliosis Research Society (SRS), in a 2014 statement, for example, states that there is presently insufficient evidence to advocate the use of PSSE programs in lieu of bracing (the conventional physiotherapeutic method in this cohort) in treating progressive idiopathic scoliosis; the society, nonetheless, remains interested in further research in to the role of PSSEs in plans of care.
Berdishevsky et al. (2016) concluded that the evidence supporting the effectiveness of PSSE is growing, with more high-quality research studies being published in recent years. The research must continue in order to further study the effectiveness of the various schools and to determine which methods and which exercises are most beneficial for individuals.
LOW-LEVEL LASER THERAPY
Low-level laser therapy (LLLT), also referred to as photobiomodulation therapy (PBMT), is a light therapy in which lasers or light-emitting diodes (LEDs) are used to improve tissue repair and reduce pain and inflammation wherever the beam is applied. LLLT is also known as “cold laser" therapy because the power densities used in this treatment modality are lower than those needed to produce heating of tissue (as is the case in thermal ablation treatments, for example).
According to Chung et al. (2012), although LLLT is used to treat a wide variety of ailments (e.g., there are studies reporting on this intervention's use in individuals with neck pain, chronic wounds, arthritis, tuberculosis, smoking cessation, epicondylitis), this treatment remains controversial for two main reasons: its underlying mechanisms have not been fully elucidated, and effective treatment parameters (e.g., wavelength, fluence, power density) are not efficiently described and delineated in the literature. As such, this treatment is largely investigational.
INFRARED THERAPY
Infrared therapy is a treatment modality in which monochromatic infrared energy, using an array of juxtaposed infrared diodes, is affixed to a flexible pad to retain skin contact. Infrared therapy is used in the treatment of various conditions, including cutaneous ulcers, diabetic neuropathy, musculoskeletal and soft tissue injuries, including temporomandibular disorders, tendonitis, capsulitis, and myofascial pain. Although the mechanism of action has not been well elucidated, it is postulated that this treatment probably exerts its therapeutic effect through photobiostimulation, as well as increased circulation resulting from increased plasma concentration of the potent vasodilator nitric oxide.
A 2008 systematic review by Li et al. reported the findings of a collective analysis of clinical studies, including prospective and retrospective studies, evaluating infrared therapy in the treatment of diabetic neuropathy. Their search of the literature yielded 10 studies including four retrospective chart reviews, five studies with an experimental research design, and two RCTs. Although overall the review found that infrared therapy improved some outcomes including lower-extremity sensation, balance, gait, and decreased fall risk, the authors concluded that the external validity of these studies was severely limited by poor study design methodologies of the assessed studies; for example, about 60% of the included studies had fewer than 50 individuals; concomitant use of other physical therapy modalities could have confounded the results as well. Additionally, there was incomplete information regarding treatment volume or intensity. These limitations point to the need for better-designed studies to evaluate this treatment in this cohort.
A 2011 systematic review assessing the use of physical therapy for balance dysfunction in individuals with diabetic neuropathy similarly evaluated the role of infrared therapy in this cohort. The authors concluded that there is insufficient evidence to recommend infrared therapy as a treatment for balance dysfunction.
TESTS AND MEASUREMENTS
Physical performance tests or measurements are used to provide objective documentation of an individual's condition or status that requires them to receive PT/OT services. Results of these tests may provide additional information that enables the therapist to develop or change the plan of care. These tests and measurements are over and above the typical evaluations that are performed.
Isokinetic muscle tests (i.e., quantitative muscle tests, isokinetic dynamometry) have been used in clinical research to quantify muscle strength and an individual’s response to rehabilitation and therapy. Several isokinetic devices (e.g., MedX Lumbar and Cervical Extension Devices, Isostation B-200 Lumbar Dynamometer, Kin-Com Physical Therapy Isokinetic Equipment, Cybex Back System, Biodex System 3, JTECH Tracker Freedom Wireless Muscle Testing) have received FDA approval; however, isokinetic muscle testing using an isokinetic dynamometry has not been medically proven to be more effective than established methods of muscle strength.
Assistive technology assessments are conducted to provide information about the interface between the individual's needs and the technology that is best suited to maximize function. The individual's voluntary motions (e.g., motor strength, range of motion and strength, motor control, and the individual's ability to use the accessibility components and systems) are identified and assessed. Multiple systems/components are tested to determine the optimal interface between the individual and various technology applications. Appropriateness and/or modification of commercial components are also evaluated.