STUDY DESIGN: Secondary analysis of a randomized clinical trial (RCT). OBJECTIVES: To perform a secondary analysis on the treatment arm of a larger RCT to determine differences in treatment outcomes, adverse reactions, and effect sizes between patients who received cervical thrust manipulation and those who received only nonthrust manipulation as part of an impairment-based, multimodal treatment program of manual physical therapy (MPT) and exercise for patients with mechanical neck pain. BACKGROUND: A treatment regimen of MPT and exercise has been effective in patients with mechanical neck pain. Limited research has compared the effectiveness of cervical thrust manipulations and nonthrust mobilizations for this patient population, and no studies have investigated the added benefit of cervical thrust manipulations as part of an overall MPT treatment plan. METHODS: Treatment outcomes from 47 patients in the treatment arm of a larger RCT, with a primary complaint of mechanical neck pain, were analyzed. Twenty-three patients (49%) received cervical thrust manipulations as part of their MPT treatment, and 24 patients (51%) received only cervical nonthrust mobilizations. All patients received up to 6 clinic sessions, twice weekly for 3 weeks, and a home exercise program. Primary outcome measures were the Neck Disability Index (NDI), 2 visual analog scales for cervical and upper extremity pain, and a 15-point global rating of change scale. Blinded outcome measurements were collected at baseline and at 3-, 6- and 52-week follow-ups. RESULTS: Consistent with the larger RCT, both subgroups in this secondary analysis demonstrated improvement in short- and long-term pain and disability scores. Low statistical power (β≤.28) and the resultant small effect size indices (–0.21 to 0.17) preclude the identification of any between-group differences. No serious adverse reactions were reported by patients in either subgroup. CONCLUSIONS: Clinically meaningful and statistically significant improvements in both subgroups of patients over time suggest that cervical thrust manipulation, as part of the MPT treatment plan, did not influence the results of the treatment arm of the larger RCT from which this study was drawn. Although no between-group differences can be identified, the small observed effect sizes in this study may benefit future studies with sample size estimation for larger RCTs and indicate the need to incorporate clinical prediction rule criteria as a means to improve statistical power. LEVEL OF EVIDENCE: Therapy, level 4.

J Orthop Sports Phys Ther 2010;40(3):133-140, Epub 5 February 2010. doi:10.2519/jospt.2010.3106

The Orthopaedic Section of the American Physical Therapy Association presents this second set of clinical practice guidelines on neck pain, linked to the International Classification of Functioning, Disability, and Health (ICF). The purpose of these practice guidelines is to describe evidence-based orthopaedic physical therapy clinical practice and provide recommendations for (1) examination and diagnostic classification based on body functions and body structures, activity limitations, and participation restrictions, (2) prognosis, (3) interventions provided by physical therapists, and (4) assessment of outcome for common musculoskeletal disorders.

J Orthop Sports Phys Ther. 2008;38(9):A1-A34. doi:10.2519/jospt.2008.0303

The original article was corrected in April 2009, and the amended article PDF is provided here. Please see: April 2009 Errata

KEY WORDS: APTA, cervical spine, clinical practice guidelines, ICD, ICF, Orthopaedic Section

Letters to the Editor-in-Chief of the JOSPT as follows:

• Regional Interdependence: A Musculoskeletal Examination Model Whose Time Has Come. J Orthop Sports Phys Ther. 2008;38(3):159-161. doi:10.2519/jospt.2008.0201
• Authors' response. J Orthop Sports Phys Ther. 2008;38(3):159-161. doi:10.2519/jospt.2008.0202
• Slipped Capital Femoral Epiphysis in a Patient Referred to Physical Therapy for Knee Pain. J Orthop Sports Phys Ther. 2008;38(3):159-161. doi:10.2519/jospt.2008.0203
• Authors' response. J Orthop Sports Phys Ther. 2008;38(3):159-161. doi:10.2519/jospt.2008.0204

STUDY DESIGN: Prospective cohort/predictive validity study. OBJECTIVE: To determine the predictive validity of selected clinical exam items and to develop a clinical prediction rule (CPR) to determine which patients with patellofemoral pain syndrome (PFPS) have a positive immediate response to lumbopelvic manipulation. BACKGROUND: Quadriceps muscle function in patients with PFPS was recently shown to improve following treatment with lumbopelvic manipulation. No previous study has determined if individuals with PFPS experience symptomatic relief of activity-related pain immediately following this manipulation technique. METHODS AND MEASURES:  Fifty subjects (26 male, 24 female; age range, 18-45 years) with PFPS underwent a standardized history and physical examination. After the evaluation, each subject performed 3 typically pain-producing functional activities (squatting, stepping up a 20-cm step, and stepping down a 20-cm step). The pain level perceived during each activity was rated on a numerical pain scale (0 representing no pain and 10 the worst possible pain). Following the assessment, all subjects were treated with a lumbopelvic manipulation, which was immediately followed by retesting the 3 functional activities to determine if there was any change in pain ratings. An immediate overall 50% or greater reduction in pain, or moderate or greater improvement on a global rating of change questionnaire, was considered a treatment success. Likelihood ratios (LRs) were calculated to determine which examination items were most predictive of treatment outcome. RESULTS: Data for 49 subjects were included in the data analysis, of which 22 (45%) had a successful outcome. Five predictor variables were identified. The most powerful predictor of treatment success was a side-to-side difference in hip internal rotation range of motion greater than 14^º (+LR, 4.9). If this variable was present, the chance of experiencing a successful outcome improved from 45% to 80%. CONCLUSION: A CPR was developed to predict an immediate successful response to lumbopelvic manipulation in patients with PFPS. However, in light of a limited sample size and omission of potentially meaningful predictor variables, future studies are necessary to validate the CPR. LEVEL OF EVIDENCE: Prognosis, level 2b.

This article features an invited commentary by Christopher M. Powers, PT, PhD, as well as an authors' response.

J Orthop Sports Phys Ther. 2008;38(6):297-312, published online 22 January 2008. doi:10.2519/jospt.2008.2669

KEY WORDS: anterior knee pain, physical examination, rehabilitation, spinal manipulation

For physical therapists to justify our services for patients with musculoskeletal problems, we need to achieve clinical outcomes superior to those associated with natural history or due to the passage of time. If a patient's presentation is unclear or if the response to intervention is less favorable than expected, practical application of the regional-interdependence model may add clarity to the patient's clinical picture and guide subsequent interventions. Likewise, further investigation of the regional-interdependence concept in a systematic fashion may add clarity to the nature of many musculoskeletal problems and guide subsequent decision making in clinical care.

J Orthop Sports Phys Ther 2007;37(11):658-660. doi:10.2519/jospt.2007.0110

KEY WORDS: regional interdependence

The diagnosis and nonoperative management of hip disorders are important clinical issues. Physical therapists can provide an alternative to surgical and pharmacological solutions for patients with lower quarter musculoskeletal complaints with noninvasive, low-risk interventions that are effective for reducing pain and disability. These interventions have none of the health risks associated with medications, surgery, and other invasive treatment options. Although effective low-risk physical therapy interventions exist for these patients, the real question is whether patients know about physical therapy and whether they are afforded an opportunity to access this type of care. Equally important is whether we physical therapists are adequately delivering it.

J Orthop Sports Phys Ther. 2007;37(9):511-513. doi:10.2519/jospt.2007.0108

It is has been said that close only counts in a game of horseshoes. The reason being, of course, that when playing horseshoes you get points for having the shoe closest to the stake even if it isn't touching. In reality, this saying is true for many psychomotor activities. For example, a baseball pitch only counts as a strike if it is within the strike zone, a thrown dart counts as a bull's-eye only if it hits somewhere within the red center, and a field goal in football is only worth 3 points if it passes between the uprights. In each of these tasks, there is a certain margin of error that is acceptable, and the margin of error for each has been operationally defined. Likewise, the clinical examination, which is comprised of the history and physical examination, consists of psychomotor tasks that are performed on a regular basis by all practicing clinicians. The ultimate goal, of course, is to accurately establish a diagnosis, direct the choice of intervention, and establish a prognosis. The practical question that the clinician must ask is, ‘‘Should I include this clinical test or measure as part of my examination?'' Often the answer is based on whether the test or measure being considered has a reliability coefficient that surpasses some predefined threshold. But is this the proper approach? If only one could get a straight answer!

J Orthop Sports Phys Ther. 2003; 33(9):488-491.

Key Words: history, physical examination, psychomotor tasks

Single leg hop tests are commonly used as physical performance measures of function and are also commonly used to evaluate progress in knee rehabilitation programs, particularly for individuals recovering from anterior cruciate ligament injury or reconstructive surgery. While there is some evidence that hop tests may show promise as a predictive measure for identifying individuals who are at risk for recurrent dynamic instability, further work is needed to clearly define the role of hop test measurements for this purpose. The purposes of this clinical commentary are to review the research that has been done to establish hop tests as a physical performance measure of function, to discuss neuromuscular and biomechanical considerations related to hop performance and dynamic knee stability, to discuss existing evidence that supports the potential for hop tests as a predictor of dynamic knee stability, and to discuss considerations for future studies that are designed to more clearly define the role of hop tests in predicting dynamic knee stability.

J Orthop Sports Phys Ther. 200l;31(10):588-597.

Key Words: anterior cruciate ligament, functional performance testing, hop tests

Study Design: One group pretest-posttest exploratory design. Objectives: Primary purposes of this study were to examine the short-term effect of hip mobilizations on pain and range of motion (ROM) measurements in patients with knee osteoarthritis (OA) and to determine the prevalence of painful hip and squat test findings in both patients with knee OA and asymptomatic subjects. The secondary purposes were to assess intrarater reliability and to determine whether fewer subjects experienced painful test findings following hip mobilization. Background: Conservative intervention, including manual physical therapy applied to the lower extremity, has been shown to reduce impairments associated with knee OA. Methods and Measures: One rater pair administered 4 clinical hip tests to 22 patients with knee OA (mean age, 61.2 years; SD, 6.1 years) and 17 subjects without lower extremity symptoms or known pathology (mean age, 64.0 years; SD, 7.9 years). Intrarater reliability was examined for each clinical test. Patients with knee OA and painful-hip and squat test findings received hip mobilizations. Pain and ROM responses for each test were dependent variables. Results: Intraclass correlation coefficients for all tests were greater than 0.87. Composite and individual test pain scores and ROM scores improved significantly following hip mobilization. All clinical test findings were more frequent in the group with knee OA, except for those of the FABER test, and the number of subjects with painful test findings following hip mobilization was reduced for all tests except the hip flexion test. Conclusions: Patients experienced increases in ROM, decreased pain, and fewer subjects had painful test findings immediately following a single session of hip mobilizations. Examination and intervention of the hip may be indicated in patients with knee OA.

J Orthop Sports Phys Ther. 2004;34(11):676-685. doi:10.2519/jospt.2004.1432

The original article was corrected in September 2007, and the amended article PDF is provided here. Please see Correction: Altman's criteria for osteoarthritis of the hip and knee. J Orthop Sports Phys Ther. 2007; 37(9):573.

Key Words: arthritis, lower extremity, manual therapy, provocation

Study Design: A prospective, criterion-based validity study. Objectives: To assess the diagnostic properties of the carpal compression test (CCT) when performed with the Durkan carpal tunnel syndrome (CTS) gauge, and to determine the measurement validity of the gauge. Background: The CCT has been reported to be highly sensitive (.87-.89) and specific (.93-1.0) in the diagnosis of CTS when it is done with thumb pressure. The accuracy of measurements with the Durkan CTS gauge, however, has not been established and the diagnostic sensitivity and specificity of the CCT when the gauge is used has not been independently confirmed. Methods and Measures: The study sample included 33 women and 19 men, aged 18 to 85 years (45.7 ± 13.5 years). The accuracy of the gauge was determined with a force dynamometer and holding frame. Standard nerve conduction studies (NCS) and the CCT were performed on the symptomatic extremity of all subjects. A compatible history and the NCS results were used to confirm CTS. Results: The Durkan gauge registered pressures of 11.94 psi and 15.25 psi at the 12 and 15 psi gauge marks, respectively. Test sensitivity and specificity were 0.36 (95% CI = 0.17-.54) and 0.57 (95% CI = 0.39-0.74), respectively. Conclusions: Pressure measurements obtained with the Durkan CTS gauge were accurate. The CCT when performed with the Durkan gauge, however, was neither sensitive nor specific for the diagnosis of CTS.

J Orthop Sports Phys Ther. 2000;30(11):676-682.

Key Words: carpal compression test, carpal tunnel syndrome

Study Design: Qualitative, comprehensive literature review. Objective: To discuss and summarize the current peer-reviewed literature related to the management of patients with cervical radiculopathy. Background: Cervical radiculopathy is a lesion of the cervical spinal nerve root with a reported prevalence of 3.3 cases per 1000 people; peak annual incidence is 2.1 cases per 1000 and occurs in the fourth and fifth decades of life. Nerve root injury has the potential to produce significant functional limitations and disability. Methods and Measures: A search of the MEDLINE, CINAHL, and Web of Science databases for the periods 1966, 1982, and 1996, respectively, to December 1999 was conducted using selected keywords and MeSH headings. The bibliographies of all retrieved articles were searched and pertinent articles were obtained. The Cochrane Database of Systematic Reviews was also searched. Literature related to the diagnosis, prognosis, and treatment of cervical radiculopathy were thoroughly reviewed and summarized using a critical appraisal approach. Results: Although cervical radiculopathy remains largely a clinical diagnosis, the true diagnostic accuracy of the clinical examination for cervical radiculopathy is unknown. Imaging and electrophysiologic tests are capable of detecting clinically significant problems in many patients and each modality has inherent strengths and weaknesses; technical as well as practical factors affect the choice of procedure. The natural course of cervical radiculopathy appears to be generally favorable but no prognostic or risk factors have been firmly established and the efficacy of various nonoperative treatments for the condition is unknown. Conclusion: A clear definition of terms and further research are required to establish definitive diagnostic criteria and effective treatment for the management of patients with cervical radiculopathy.

J Orthop Sports Phys Ther. 2000;30(12):728-744.

Key Words: cervical radiculopathy, diagnosis, treatment

Growing evidence supports the effectiveness of manual therapy interventions in patients with neck pain; however, considerable attention has also been afforded to the potential risks, such as vertebrobasilar insufficiency (VBI). Despite the existence of guidelines advocating specific screening procedures, research does not support the ability to accurately identify patients at risk. The logical question becomes, ‘‘How does one proceed in the absence of certainty?’’ Given the lack of clear direction for decision making in the peer-reviewed literature, this commentary discusses the uncertainties that exist regarding the ability to identify patients at risk for VBI. The authors hope that this commentary adds additional perspective on manual therapy decision-making strategies in the presence of uncertainty.

J Orthop Sports Phys Ther. 2005;35(5):300-306. doi:10.2519/jospt.2005.1312

Key Words: cervical spine, diagnostic accuracy, manipulation, mobilization, vertebral artery

Calcific deposits located within the tendons of the rotator cuff are frequently seen in patients presenting with shoulder pain. The pathogenesis of calcific tendinitis and the optimum management of patients presenting with acute symptoms are unclear. This paper reviews the incidence, proposed etiologies, and a unique treatment approach of rotator cuff calcific tendinitis. A case report of a patient with acute calcific tendinitis and subsequent shoulder motion and strength deficits is presented. A rational evaluation and treatment plan is outlined, which includes management and posttreatment changes, and radiographic findings are discussed. A team-management approach by physical therapy and orthopaedics services is emphasized.

J Orthop Sports Phys Ther. 1998;27(3):231-237.

Key Words: calcific tendinitis, shoulder, treatment

Spinal manipulation for low back complaints is an intervention supported by randomized clinical trials and its use recommended by clinical practice guidelines. Physical therapists in this country and internationally have used thrust spinal manipulation at much lower-than-expected rates, despite evidence supporting its efficacy for the treatment of acute low back pain (LBP). The purpose of this clinical commentary is to describe a physical therapist professional degree curriculum in thrust spinal manipulation and outline a method of monitoring ongoing student performance during the clinical education experience.

Increased emphasis on evidence-based decision making and on the psychomotor skills of thrust spinal manipulation was introduced into a physical therapist professional degree curriculum. As part of ongoing student performance monitoring, physical therapy students on their first full-time (8-week) clinical education experience, collected practice pattern and outcome data on individuals with low back complaints. Eight of 18 first-year students were in outpatient musculoskeletal clinical settings and managed 61 individuals with low back complaints. Patients were seen for an average (±SD) of 6.2 ± 4.0 visits. Upon initial visit, the student therapists employed spinal manipulation at a rate of 36.2% and spinal mobilization at 58.6%. At the final visit, utilization of manipulation and mobilization decreased (13% and 37.8%, respectively), while the utilization of exercise interventions increased, with 75% of patients receiving some form of lumbar stabilization training.

Physical therapist students used thrust spinal manipulation at rates that are more consistent with clinical practice guidelines and substantially higher then previously reported by practicing physical therapists. Education within an evidence-based framework is thought to contribute to practice behaviors and outcomes that are more consistent with best practice guidelines.

J Orthop Sports Phys Ther. 2006;36(8):577-587. doi:10.2519/jospt.2006.2159

Key Words: curriculum, low back pain, outcomes, physical therapy education, spinal manipulation

Study Design: Predictive validity/diagnostic test study.
Objective: To determine the predictive validity and interrater reliability of selected clinical exam items and to develop a clinical prediction rule (CPR) to determine which patients respond successfully to patellar taping.
Background: Patellar taping is often used to treat patients with PFPS. However, the characteristics of the patients who respond best to patellar taping intervention have not been identified.
Methods and Measures: Fifty volunteers (27 males, 23 females) with PFPS underwent a standardized clinical examination. Diagnosis of PFPS was based on the complaint of retropatellar pain that was provoked by a partial squat or stair ascent/descent. Subjects performed 3 functional activities and rated their pain during each activity on a numerical rating scale (NPRS). All subjects received treatment with a medial glide patellar-taping technique and repeated the functional activities and pain ratings. An immediate 50% reduction in pain or moderate improvement on a global rating of change (GRC) questionnaire was considered a treatment success. Likelihood ratios (LRs) were calculated to determine which examination items were most predictive of treatment outcome. Logistic regression analysis identified items included in the CPR.
Results: Twenty-six subjects (52%) had an immediate successful response to the intervention. Two examination items (positive patellar tilt test or tibial varum greater than 5°, +LR = 4.4) comprised the CPR. Application of the CPR improved the probability of a successful outcome from 52% to 83%. Fifty-eight percent of the lower extremity measures were associated with moderate to good reliability (reliability coefficient range, 0.52-0.84). The reliability coefficients for the items that comprised the CPR were 0.49 (patellar tilt) and 0.66 (tibial varum).
Conclusion: A CPR was developed to predict an immediate successful response to a medial glide patellar taping technique. Validation of the CPR in an independent sample is necessary before widespread clinical use can be recommended.

J Orthop Sports Phys Ther. 2006; 36(11):854-866. doi:10.2519/jospt.2006.2208

Key Words: bracing, knee pain, physical examination, physical therapy, rehabilitation