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Early effects of a microprocessor-controlled knee joint on functional mobility and user satisfaction in veterans with limb loss.

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Title: Early effects of a microprocessor-controlled knee joint on functional mobility and user satisfaction in veterans with limb loss.
Authors: Kuzu, Ceren (AUTHOR), Topuz, Semra (AUTHOR), Aydemir, Koray (AUTHOR)
Source: Clinical Rehabilitation. Feb2026, Vol. 40 Issue 2, p182-192. 11p.
Subjects: Amputation, Physical therapy, Traumatic amputation, Repeated measures design, Leg, Academic medical centers, T-test (Statistics), Data analysis, Pilot projects, Functional assessment, Questionnaires, Clinical trials, Functional status, Amputees, Tertiary care, Descriptive statistics, Microprocessors, Knee joint, Pre-tests & post-tests, Rehabilitation centers, Veterans, Artificial joints, Total knee replacement, Statistics, Patient satisfaction, Data analysis software, Physical mobility
Geographic Terms: Turkey
Abstract: Objective: To evaluate the effects of a polycentric microprocessor-controlled knee joint on functional mobility and user satisfaction. Design: Before–after pilot trial. Setting: Tertiary-level physical therapy and rehabilitation hospital. Participants: Ten adults with unilateral transfemoral or through-knee amputations due to trauma. Intervention: Transition from various monocentric microprocessor-controlled knees to a polycentric microprocessor-controlled hydraulic knee. Main measures: Functional performance assessed using the Timed Up and Go, 6-Minute Walk Test, Hill Assessment Index, Stair Assessment Index, and user satisfaction measured by the Satisfaction with Prosthesis Questionnaire. Results: The Time Up and Go and 6-Minute Walk Test showed nonsignificant improvements with moderate effect sizes (Cohen's d = 0.43 and 0.58; p =.205 and.098, respectively). No significant change was observed in the Stair Assessment Index. A statistically significant improvement was found in the descend-specific Hill Assessment Index, accompanied by a significant reduction in task duration (r = 0.95; p =.034; Cohen's d = 0.85; p =.025, respectively). User satisfaction demonstrated a positive trend, with a moderate-to-large effect size (Cohen's d = 0.68; p =.059), although this did not reach statistical significance. Conclusions: Transitioning to the polycentric microprocessor-controlled knee joint may enhance incline-related mobility in active prosthesis users. The positive trend in user satisfaction suggests potential benefits; however, this requires confirmation in larger studies. Outcomes may be influenced by learning effects and socket comfort variability. These preliminary findings support the need for individualized prosthetic prescriptions and warrant larger, controlled trials with extended follow-up. [ABSTRACT FROM AUTHOR]
Copyright of Clinical Rehabilitation is the property of Sage Publications Inc. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Psychology and Behavioral Sciences Collection
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DbLabel: Psychology and Behavioral Sciences Collection
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PubType: Academic Journal
PubTypeId: academicJournal
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  Label: Title
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  Data: Early effects of a microprocessor-controlled knee joint on functional mobility and user satisfaction in veterans with limb loss.
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  Data: <searchLink fieldCode="AR" term="%22Kuzu%2C+Ceren%22">Kuzu, Ceren</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Topuz%2C+Semra%22">Topuz, Semra</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Aydemir%2C+Koray%22">Aydemir, Koray</searchLink> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22Clinical+Rehabilitation%22">Clinical Rehabilitation</searchLink>. Feb2026, Vol. 40 Issue 2, p182-192. 11p.
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  Label: Subjects
  Group: Su
  Data: <searchLink fieldCode="DE" term="%22Amputation%22">Amputation</searchLink><br /><searchLink fieldCode="DE" term="%22Physical+therapy%22">Physical therapy</searchLink><br /><searchLink fieldCode="DE" term="%22Traumatic+amputation%22">Traumatic amputation</searchLink><br /><searchLink fieldCode="DE" term="%22Repeated+measures+design%22">Repeated measures design</searchLink><br /><searchLink fieldCode="DE" term="%22Leg%22">Leg</searchLink><br /><searchLink fieldCode="DE" term="%22Academic+medical+centers%22">Academic medical centers</searchLink><br /><searchLink fieldCode="DE" term="%22T-test+%28Statistics%29%22">T-test (Statistics)</searchLink><br /><searchLink fieldCode="DE" term="%22Data+analysis%22">Data analysis</searchLink><br /><searchLink fieldCode="DE" term="%22Pilot+projects%22">Pilot projects</searchLink><br /><searchLink fieldCode="DE" term="%22Functional+assessment%22">Functional assessment</searchLink><br /><searchLink fieldCode="DE" term="%22Questionnaires%22">Questionnaires</searchLink><br /><searchLink fieldCode="DE" term="%22Clinical+trials%22">Clinical trials</searchLink><br /><searchLink fieldCode="DE" term="%22Functional+status%22">Functional status</searchLink><br /><searchLink fieldCode="DE" term="%22Amputees%22">Amputees</searchLink><br /><searchLink fieldCode="DE" term="%22Tertiary+care%22">Tertiary care</searchLink><br /><searchLink fieldCode="DE" term="%22Descriptive+statistics%22">Descriptive statistics</searchLink><br /><searchLink fieldCode="DE" term="%22Microprocessors%22">Microprocessors</searchLink><br /><searchLink fieldCode="DE" term="%22Knee+joint%22">Knee joint</searchLink><br /><searchLink fieldCode="DE" term="%22Pre-tests+%26+post-tests%22">Pre-tests & post-tests</searchLink><br /><searchLink fieldCode="DE" term="%22Rehabilitation+centers%22">Rehabilitation centers</searchLink><br /><searchLink fieldCode="DE" term="%22Veterans%22">Veterans</searchLink><br /><searchLink fieldCode="DE" term="%22Artificial+joints%22">Artificial joints</searchLink><br /><searchLink fieldCode="DE" term="%22Total+knee+replacement%22">Total knee replacement</searchLink><br /><searchLink fieldCode="DE" term="%22Statistics%22">Statistics</searchLink><br /><searchLink fieldCode="DE" term="%22Patient+satisfaction%22">Patient satisfaction</searchLink><br /><searchLink fieldCode="DE" term="%22Data+analysis+software%22">Data analysis software</searchLink><br /><searchLink fieldCode="DE" term="%22Physical+mobility%22">Physical mobility</searchLink>
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  Data: <searchLink fieldCode="DE" term="%22Turkey%22">Turkey</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Objective: To evaluate the effects of a polycentric microprocessor-controlled knee joint on functional mobility and user satisfaction. Design: Before–after pilot trial. Setting: Tertiary-level physical therapy and rehabilitation hospital. Participants: Ten adults with unilateral transfemoral or through-knee amputations due to trauma. Intervention: Transition from various monocentric microprocessor-controlled knees to a polycentric microprocessor-controlled hydraulic knee. Main measures: Functional performance assessed using the Timed Up and Go, 6-Minute Walk Test, Hill Assessment Index, Stair Assessment Index, and user satisfaction measured by the Satisfaction with Prosthesis Questionnaire. Results: The Time Up and Go and 6-Minute Walk Test showed nonsignificant improvements with moderate effect sizes (Cohen's d = 0.43 and 0.58; p =.205 and.098, respectively). No significant change was observed in the Stair Assessment Index. A statistically significant improvement was found in the descend-specific Hill Assessment Index, accompanied by a significant reduction in task duration (r = 0.95; p =.034; Cohen's d = 0.85; p =.025, respectively). User satisfaction demonstrated a positive trend, with a moderate-to-large effect size (Cohen's d = 0.68; p =.059), although this did not reach statistical significance. Conclusions: Transitioning to the polycentric microprocessor-controlled knee joint may enhance incline-related mobility in active prosthesis users. The positive trend in user satisfaction suggests potential benefits; however, this requires confirmation in larger studies. Outcomes may be influenced by learning effects and socket comfort variability. These preliminary findings support the need for individualized prosthetic prescriptions and warrant larger, controlled trials with extended follow-up. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Clinical Rehabilitation is the property of Sage Publications Inc. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.1177/02692155251389469
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 11
        StartPage: 182
    Subjects:
      – SubjectFull: Amputation
        Type: general
      – SubjectFull: Physical therapy
        Type: general
      – SubjectFull: Traumatic amputation
        Type: general
      – SubjectFull: Repeated measures design
        Type: general
      – SubjectFull: Leg
        Type: general
      – SubjectFull: Academic medical centers
        Type: general
      – SubjectFull: T-test (Statistics)
        Type: general
      – SubjectFull: Data analysis
        Type: general
      – SubjectFull: Pilot projects
        Type: general
      – SubjectFull: Functional assessment
        Type: general
      – SubjectFull: Questionnaires
        Type: general
      – SubjectFull: Clinical trials
        Type: general
      – SubjectFull: Functional status
        Type: general
      – SubjectFull: Amputees
        Type: general
      – SubjectFull: Tertiary care
        Type: general
      – SubjectFull: Descriptive statistics
        Type: general
      – SubjectFull: Microprocessors
        Type: general
      – SubjectFull: Knee joint
        Type: general
      – SubjectFull: Pre-tests & post-tests
        Type: general
      – SubjectFull: Rehabilitation centers
        Type: general
      – SubjectFull: Veterans
        Type: general
      – SubjectFull: Artificial joints
        Type: general
      – SubjectFull: Total knee replacement
        Type: general
      – SubjectFull: Statistics
        Type: general
      – SubjectFull: Patient satisfaction
        Type: general
      – SubjectFull: Data analysis software
        Type: general
      – SubjectFull: Physical mobility
        Type: general
      – SubjectFull: Turkey
        Type: general
    Titles:
      – TitleFull: Early effects of a microprocessor-controlled knee joint on functional mobility and user satisfaction in veterans with limb loss.
        Type: main
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          Name:
            NameFull: Kuzu, Ceren
      – PersonEntity:
          Name:
            NameFull: Topuz, Semra
      – PersonEntity:
          Name:
            NameFull: Aydemir, Koray
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          Dates:
            – D: 01
              M: 02
              Text: Feb2026
              Type: published
              Y: 2026
          Identifiers:
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              Value: 02692155
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              Value: 40
            – Type: issue
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          Titles:
            – TitleFull: Clinical Rehabilitation
              Type: main
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