CONTINUOUS PASSIVE MOTION IN COMPUTER-ASSISTED AUSCULTATION OF THE KNEE

DA BARR, L LONG, George Kernohan, RAB MOLLAN

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

A study of physiological patellofemoral crepitus (PPC) signal recorded from adolescent knees has yielded information which suggests that decay time of PPC amplitude due to continuous passive motion (CPM) activity is a consistent and useful signature variable for a given knee. The PPC vibrational signal was induced in each case by 1 min of static load on the patella and postural variables during the examination were carefully controlled. The speed of CPM has been noted as a factor directly influencing the rate of PPC amplitude decay; specifically, a higher CPM speed contributes to an increased decay constant at a cost of increased inter-subject variability. It is proposed that CPM might form an important basis for the ultimate development of a computer-based auscultation technique for diagnosis of patellofemoral joint disorders.
LanguageEnglish
Pages159-169
JournalComputer Methods and Programs in Biomedicine
Volume43
Issue number3-4
Publication statusPublished - Jun 1994

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Auscultation
Knee
Patellofemoral Joint
Patella
Costs
Costs and Cost Analysis

Cite this

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title = "CONTINUOUS PASSIVE MOTION IN COMPUTER-ASSISTED AUSCULTATION OF THE KNEE",
abstract = "A study of physiological patellofemoral crepitus (PPC) signal recorded from adolescent knees has yielded information which suggests that decay time of PPC amplitude due to continuous passive motion (CPM) activity is a consistent and useful signature variable for a given knee. The PPC vibrational signal was induced in each case by 1 min of static load on the patella and postural variables during the examination were carefully controlled. The speed of CPM has been noted as a factor directly influencing the rate of PPC amplitude decay; specifically, a higher CPM speed contributes to an increased decay constant at a cost of increased inter-subject variability. It is proposed that CPM might form an important basis for the ultimate development of a computer-based auscultation technique for diagnosis of patellofemoral joint disorders.",
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CONTINUOUS PASSIVE MOTION IN COMPUTER-ASSISTED AUSCULTATION OF THE KNEE. / BARR, DA; LONG, L; Kernohan, George; MOLLAN, RAB.

In: Computer Methods and Programs in Biomedicine, Vol. 43, No. 3-4, 06.1994, p. 159-169.

Research output: Contribution to journalArticle

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AU - BARR, DA

AU - LONG, L

AU - Kernohan, George

AU - MOLLAN, RAB

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