The Patient-Specific Functional Scale: Psychometrics, Clinimetrics, and Application as a Clinical Outcome Measure

Horn, Katyana Kowalchuk; Jennings, Sophie; Richardson, Gillian; Vliet, Ditte van; Hefford, Cheryl; Abbott, J. Haxby

doi:10.2519/jospt.2012.3727

Cited by 351 publications

(290 citation statements)

References 74 publications

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“…For purposes of analysis, the responses were grouped into two broad categories of either ''never/rarely'' or ''sometimes/often/frequent,'' similar to the methodology described by Bourne et al [3]. The Patient-Specific Functional Scale [4,6,13] was incorporated to determine whether there were one or more activities critical to the patient in their recreation that they had to limit participation in before surgery because of their knees. We then examined the percentage of patients who returned to this critical activity after surgery.…”

Section: Methodsmentioning

confidence: 99%

High Level of Residual Symptoms in Young Patients After Total Knee Arthroplasty

Parvızı

Nunley

Berend

et al. 2014

Clinical Orthopaedics &Amp; Related Research

234

135

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Background TKA is among the fastest growing interventions in medicine, with procedure incidence increasing the most in younger patients. Global knee scores have a ceiling effect and do not capture the presence of difficulty or dissatisfaction with specific activities important to patients. Questions/purposes We quantified the degree of residual symptoms and specific functional deficits in young patients who had undergone TKA.

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Section: Methodsmentioning

confidence: 99%

High Level of Residual Symptoms in Young Patients After Total Knee Arthroplasty

Parvızı

Nunley

Berend

et al. 2014

Clinical Orthopaedics &Amp; Related Research

234

135

View full text Add to dashboard Cite

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“…Patients were asked whether their operated knee felt normal to them, as described by Noble et al [46]. The Patient-Specific Functional Scale [15,25,60] was incorporated to determine whether there were one or more activities critical to the patient in their recreation that they had to limit participation in before surgery because of their knee. We then examined the percentage of patients who returned to this critical activity after surgery.…”

Section: Methodsmentioning

confidence: 99%

Impact of Socioeconomic Factors on Outcome of Total Knee Arthroplasty

Barrack¹,

Ruh²,

Chen³

et al. 2014

Clinical Orthopaedics &Amp; Related Research

148

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Background Few data exist regarding the impact of socioeconomic factors on results of current TKA in young patients. Predictors of TKA outcomes have focused primarily on surgical technique, implant details, and individual patient clinical factors. The relative importance of these factors compared to patient socioeconomic status is not known. Questions/purposes We determined whether (1) socioeconomic factors, (2) demographic factors, or (3) implant factors were associated with satisfaction and functional outcomes after TKA in young patients. MethodsWe surveyed 661 patients (average age, 54 years; range, 18-60 years; 61% female) 1 to 4 years after undergoing modern primary TKA for noninflammatory arthritis at five orthopaedic centers. Data were collected by an independent third party with expertise in collecting healthcare data for state and federal agencies. We examined specific questions regarding satisfaction, pain, and function after TKA and socioeconomic (household income, education, employment) and demographic (sex, minority status) factors. Multivariable analysis was conducted to examine the relative importance of these factors for each outcome of interest. One of the authors certifies that he (RLB) has or may receive payments or benefits, during the study period, an amount of more than USD 1,000,001 from Smith & Nephew, Inc, and an amount of more than USD 1,000,001 from Stryker Orthopaedics. One of the authors certifies that he (AVL) has or may receive payments or benefits, during the study period, an amount of more than USD 1,000,001 from Biomet Inc, and an amount of USD 10,000 to 100,000 from Innomed, Inc (Savannah, GA, USA). One of the authors certifies that he (KRB) has or may receive payments or benefits, during the study period, an amount of more than USD 1,000,001 from Biomet Inc.One of the authors certifies that he (JP) has or may receive payments or benefits, during the study period, an amount of USD 10,000 to 100,000 from Smith & Nephew, Inc, an amount of USD 10,000 to 100,000 from 3 M, an amount of USD 10,000 to 100,000 from Cadence Pharmaceuticals, Inc (San Diego, CA, USA), an amount of USD 10,000 to 100,000 from CeramTec (Laurens, SC, USA), an amount of USD 10,000 to 100,000 from Pfizer (New York, NY, USA), an amount of USD 10,000 to 100,000 from Salient Surgical (Minneapolis, MN, USA), an amount of USD 10,000 to 100,000 from TissueGene (Rockville, MD, USA), and an amount of USD 10,000 to 100,000 from Zimmer Inc. One of the authors certifies that he (CDV) has or may receive payments or benefits, during the study period, an amount of USD 10,000 to 100,000 from Biomet Inc, an amount of USD 10,000 to 100,000 from Smith & Nephew, Inc, an amount of less than USD 10,000 from ConvaTec (Skillman, NJ, USA), and an amount of less than USD 10,000 from CD Diagnostics (Wynnewood, PA, USA). One of the authors certifies that he (WGH) has or may receive payments or benefits, during the study period, an amount of USD 100,001 to 1,000,000 from DePuy, a Johnson and Johnson company, and an amount of USD 1...

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“…32 Furthermore, the patient specific functional scale was administered, 33 which is a reliable and valid instrument to determine change in activities that are deemed difficult by the patient. 34 Two separate 10 cm Figure 2. A: Tendon gliding exercises as described by Wehbé et al 21 .…”

Section: Interventionmentioning

confidence: 99%

Effect of splinting and exercise on intraneural edema of the median nerve in carpal tunnel syndrome—an MRI study to reveal therapeutic mechanisms

Schmid

Elliott

Strudwick

et al. 2012

Journal Orthopaedic Research

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Splinting and nerve and tendon gliding exercises are commonly used to treat carpal tunnel syndrome (CTS). It has been postulated that both modalities reduce intraneural edema. To test this hypothesis, 20 patients with mild to moderate CTS were randomly allocated to either night splinting or a home program of nerve and tendon gliding exercises. Magnetic resonance images of the wrist were taken at baseline, immediately after 10 min of splinting or exercise, and following 1 week of intervention. Primary outcome measures were signal intensity of the median nerve at the wrist as a measure of intraneural edema and palmar bowing of the carpal ligament. Secondary outcome measures were changes in symptom severity and function. Following 1 week of intervention, but not immediately after 10 min, signal intensity of the median nerve was reduced by $11% at the radioulnar level for both interventions (p ¼ 0.03). This was accompanied by a mild improvement in symptoms and function (p < 0.004). A similar reduction in signal intensity is not observed in patients who only receive advice to remain active. No changes in signal intensity were identified further distally (p > 0.28). Ligament bowing remained unchanged (p > 0.08). Intraneural edema reduction is a likely therapeutic mechanism of splinting and exercise. Keywords: MRI; nerve and tendon gliding exercises; splinting; carpal tunnel syndrome; neurodynamics Carpal tunnel syndrome (CTS) is a peripheral neuropathy at the level of the wrist. Despite considerable efforts, the pathophysiology of CTS is not yet fully understood. 1 There is however a well-established link between an elevated pressure in the carpal tunnel and the development of CTS. 2,3 When the pressure on a peripheral nerve is experimentally increased, a reduction of intraneural microcirculation occurs with subsequent breakdown of the blood nerve barrier and the formation of intraneural and extraneural edema. 4 In CTS, swelling of the median nerve has been identified intra-operatively, 5,6 with ultrasound imaging 7 and with conventional magnetic resonance imaging (MRI). 8,9 If present for prolonged periods, intraneural edema may lead to potentially irreversible fibrotic changes. 4 These fibrotic changes are present in patients with severe CTS. 9 Edema reduction to prevent progression to a fibrotic stage is therefore a plausible target in the management of patients with mild to moderate CTS.Besides advice, splinting and nerve and tendon gliding exercises are the most frequently performed noninvasive treatment modalities for CTS. 10 The beneficial effect of night splinting in a neutral wrist position is commonly attributed to the avoidance of end-range positions associated with high carpal tunnel pressures. 11,12 Maintenance of a neutral wrist position is believed to promote adequate blood circulation with a subsequent reduction of edema. 13 Although further research is required, recent systematic reviews indicate that conservative management with nerve and tendon gliding exercises may be beneficial for patie...

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The Patient-Specific Functional Scale: Psychometrics, Clinimetrics, and Application as a Clinical Outcome Measure

Abstract: T T CONCLUSION:Although the use of the PSFS as an outcome measure is increasing in physiotherapy practice, there are gaps in the research literature regarding its validity, reliability, and responsiveness in many health conditions.

Cited by 351 publications

References 74 publications

High Level of Residual Symptoms in Young Patients After Total Knee Arthroplasty

High Level of Residual Symptoms in Young Patients After Total Knee Arthroplasty

Impact of Socioeconomic Factors on Outcome of Total Knee Arthroplasty

Effect of splinting and exercise on intraneural edema of the median nerve in carpal tunnel syndrome—an MRI study to reveal therapeutic mechanisms

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