Resting TcPO2 levels decrease during liner wear in persons with a transtibial amputation

Autor: Michael Hofer, Felix W A Waibel, Tobias Götschi, Michèle Jundt-Ecker, Martin C Berli, Madlaina Schöni, Ilker Uçkay, Margrit R Meier, Thomas Böni
Přispěvatelé: University of Zurich, Waibel, Felix W A
Rok vydání: 2020
Předmět:
Male
030506 rehabilitation
Supine position
medicine.medical_treatment
Silicones
Orthopedic Surgery
Dentistry
030204 cardiovascular system & hematology
0302 clinical medicine
Transtibial amputation
Medicine and Health Sciences
Surgical Amputation
Aged
80 and over
Ulcers
Prosthetics
Multidisciplinary
Physics
Amputation Stumps
Age Factors
Classical Mechanics
Middle Aged
medicine.anatomical_structure
Physical Sciences
Medicine
Engineering and Technology
10046 Balgrist University Hospital
Swiss Spinal Cord Injury Center
Smoking status
Female
Anatomy
0305 other medical science
Research Article
Biotechnology
Soft Tissues
Science
Rest
Pain
610 Medicine & health
Surgical and Invasive Medical Procedures
Bioengineering
1100 General Agricultural and Biological Sciences
Amputation
Surgical
03 medical and health sciences
Peripheral Arterial Disease
Sex Factors
Signs and Symptoms
Musculoskeletal System Procedures
1300 General Biochemistry
Genetics and Molecular Biology
medicine
Pressure
Hydrostatic Pressure
Humans
Tibia
Aged
1000 Multidisciplinary
business.industry
technology
industry
and agriculture
Biology and Life Sciences
Blood flow
equipment and supplies
Sagittal plane
body regions
Assistive Technologies
Biological Tissue
Amputation
Phantom Limb
Body Limbs
Medical Devices and Equipment
Clinical Medicine
business
Blood Gas Monitoring
Transcutaneous
Residual limb
Zdroj: PLoS ONE
PLoS ONE, Vol 15, Iss 9, p e0239930 (2020)
PLoS ONE, 15 (9)
ISSN: 1932-6203
Popis: Background In our clinic, a substantial number of patients present with transtibial residual limb pain of no specific somatic origin. Silicone liner induced tissue compression may reduce blood flow, possibly causing residual limb pain. Thus, as a first step we investigated if the liner itself has an effect on transcutaneous oxygen pressure (TcPO2). Methods Persons with unilateral transtibial amputation and residual limb pain of unknown origin were included. Medical history, including residual limb pain, was recorded, and the SF-36 administered. Resting TcPO2 levels were measured in the supine position and without a liner at 0, 10, 20 and 30 minutes using two sensors: one placed in the Transverse plane over the tip of the Tibia End (= TTE), the other placed in the Sagittal plane, distally over the Peroneal Compartment (= SPC). Measurements were repeated with specially prepared liners avoiding additional pressure due to sensor placement. Statistical analyses were performed using SPSS. Results Twenty persons (9 women, 11 men) with a mean age of 68.65 years (range 47–86 years) participated. The transtibial amputation occurred on average 43 months prior to study entry (range 3–119 months). With liner wear, both sensors measured TcPO2 levels that were significantly lower than those measured without a liner (TTE: p < 0.001; SPC: p = 0.002) after 10, 20 and 30 minutes. No significant differences were found between TcPO2 levels over time between the sensors. There were no significant associations between TcPO2 levels and pain, smoking status, age, duration of daily liner use, mobility level, and revision history. Conclusion Resting TcPO2 levels decreased significantly while wearing a liner alone, without a prosthetic socket. Further studies are required to investigate the effect of liner wear on exercise TcPO2 levels.
PLoS ONE, 15 (9)
ISSN:1932-6203
Databáze: OpenAIRE
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