Ian Barner-Rasmussen

ORCID: 0000-0001-6294-4988
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About
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Research Areas
  • Reconstructive Surgery and Microvascular Techniques
  • Sarcoma Diagnosis and Treatment
  • Muscle activation and electromyography studies
  • Surgical site infection prevention
  • Musculoskeletal synovial abnormalities and treatments
  • Knee injuries and reconstruction techniques
  • Total Knee Arthroplasty Outcomes
  • Prosthetics and Rehabilitation Robotics
  • Orthopedic Surgery and Rehabilitation
  • Stroke Rehabilitation and Recovery
  • Orthopaedic implants and arthroplasty
  • Diabetic Foot Ulcer Assessment and Management
  • Musculoskeletal Disorders and Rehabilitation
  • Foot and Ankle Surgery
  • Traumatic Brain Injury Research
  • Bone Tumor Diagnosis and Treatments
  • Autopsy Techniques and Outcomes
  • Hip and Femur Fractures
  • Management of metastatic bone disease
  • Traumatic Ocular and Foreign Body Injuries
  • Head and Neck Surgical Oncology
  • Beetle Biology and Toxicology Studies
  • Neuroscience and Neural Engineering
  • Trauma and Emergency Care Studies
  • Trauma Management and Diagnosis

University of Helsinki
2015-2024

Helsinki University Hospital
2009-2024

Scottish Parliament
2020

Central Finland Health Care District
2020

University of Jyväskylä
2020

Hospital District of Helsinki and Uusimaa
2020

University of Eastern Finland
2020

Töölö Hospital
2009

In this work, we present a myoelectric interface that extracts natural motor synergies from multi-muscle signals and adapts in real-time with new user inputs. With unsupervised adaptive myocontrol (UAM) system, optimal for control are continuously co-adapted changes control, or as function of perturbed conditions via online non-negative matrix factorization guided by physiologically informed sparseness constraints lieu explicit data labelling.UAM was tested set virtual target reaching tasks...

10.1109/tbme.2022.3150665 article EN cc-by IEEE Transactions on Biomedical Engineering 2022-02-15

Abstract Background Limb-sparing surgery and satisfactory functional outcome is the goal of extremity soft tissue sarcoma (STS) surgery. Tissue defects after tumour excision are often extensive, microvascular reconstruction frequently required. Methods Seventy-three patients with STS leg requiring were treated between 1985 2006. Radiotherapy was delivered if microscopic surgical margin less than 2·5 cm. Results Mean follow-up 65·9 months. Seventy-five free flaps performed, a success rate 95...

10.1002/bjs.6581 article EN British journal of surgery 2009-04-08

Treatment of gunshot wounds the brain (GSWB) remains controversial and there is high variation in reported survival rates (from < 10 to > 90%) depending on etiology country. We retrospectively analyzed outcome a series consecutive GSWB patients admitted alive level 1 trauma center safe high-income welfare country with low rate homicidal gun violence. Patients due HUS Helsinki University Hospital during 2000–2012 were identified from hospital discharge registry log books emergency room ICU....

10.1007/s00701-019-03952-y article EN cc-by Acta Neurochirurgica 2019-05-25

Background Reconstruction of extensive bone and compound defects in the foot ankle is challenging. This cross-sectional study aimed to assess outcomes free iliac crest flap reconstruction. Methods We retrospectively reviewed patient records identified 13 cases with 1 osseous 12 composite grafts for fracture (n = 3) or sequelae 10) ankle. applied visual analogue scale ankle, Oswestry disability index, 15D health-related quality life (HRQoL) instruments. Results The average follow-up period...

10.1055/s-0036-1571441 article EN Journal of Reconstructive Microsurgery 2016-02-05

Few studies have focused on patient-related factors in analyzing long-term functional outcome and health-related quality of life (HRQoL) patients with postoperative lower extremity soft tissue sarcoma (STS).The purpose this study was to investigate associated HRQoL STS.This cross-sectional performed a tertiary referral center using the Toronto Extremity Salvage Score (TESS), Quality-of-Life Questionnaire (QLQ)-C30 15 Dimension (15D) measures. Functional data were collected prospectively. All...

10.1245/s10434-021-09774-6 article EN cc-by Annals of Surgical Oncology 2021-03-19

The present standard of care in treating lower extremity soft tissue sarcomas is function-sparing, limb-preserving resection and reconstruction with or without oncological therapy. aim this pilot study was to test the suitability adequacy Finnish translations two functional outcome questionnaires (Toronto Extremity Salvage Score Musculoskeletal Tumor Society score) perform a preliminary investigation outcomes lower-limb sarcoma patients after operative treatment.Between June 2015 December...

10.1177/1457496918798210 article EN Scandinavian Journal of Surgery 2018-09-06

We report the suitability of free flap reconstruction in defects around knee joint caused by soft tissue sarcoma (STS) excisions. The importance collateral ligament is also evaluated.Between years 1993 and 2005, 15 STS patients having a at area with need for were treated Helsinki University Hospital. Eleven musculocutaneous latissimus dorsi, 3 fasciocutaneous anterolateral thigh flaps, 1 osteomusculocutaneous dorsi used. ligaments was performed 7 patients, 4 medial lateral; 6...

10.1097/sap.0b013e3181a20adf article EN Annals of Plastic Surgery 2009-12-21

Objective This study aimed to present the results of a series forequarter amputations (FQAs) and evaluate reconstructive methods used. Summary Background Data Although FQA has become rare procedure in era limb-sparing treatment extremity malignancies, it is useful option when resection shoulder girdle or proximal upper tumor cannot be performed so as retain functional limb. Methods Thirty-four patients were treated with 1989 2017. Various techniques used, including free fillet flaps from...

10.1097/sap.0000000000002204 article EN Annals of Plastic Surgery 2020-01-10

Interest in functional outcome (FO) and health-related quality of life (HRQL) extremity soft-tissue sarcoma (STS) patients has increased. The aim this study was to validate two FO questionnaires for upper STS patients: the Toronto Extremity Salvage Score (TESS) short version Disability Arm, Shoulder Hand (QuickDASH), based on Finnish population data.A multi-center conducted at academic centers. Surgically treated were invited participate. Patients completed TESS QuickDASH with HRQL 15D...

10.1016/j.bjps.2021.11.081 article EN cc-by Journal of Plastic Reconstructive & Aesthetic Surgery 2021-12-01

Head and neck cancer (HNC) its treatment can result in permanent changes to a patient's appearance, speaking, eating, psychosocial well-being. To better assess the impact of disease on HNC patients, FACE-Q Neck Cancer Module, health-related quality-of-life instrument, was developed. The aim this study produce linguistically validate Finnish version module. module translated into following International Society for Pharmacoeconomics Outcomes Research (ISPOR) guidelines. A total 51 patients...

10.2340/jphs.v59.40518 article EN cc-by Journal of Plastic Surgery and Hand Surgery 2024-11-06

ABSTRACT Introduction Two different versions of the Prosthesis Evaluation Questionnaire (PEQ) are available. This study aimed to assess measurement properties original 13-item Mobility Section Finnish version PEQ on a visual analogue scale (PEQ-VAS, 0–100 points) and its modified 12-item with five response categories (PEQ-MS12/5, 0–60 points). Methods Patients having undergone major lower-limb amputation completed PEQ, PEQ-MS12/5, Locomotor Capabilities Index–5, Houghton Scale, 15D...

10.1097/jpo.0000000000000323 article EN JPO Journal of Prosthetics and Orthotics 2020-06-15

The Finnish language has no function-related cancer-specific outcome measures. authors translated the Toronto Extremity Salvage Score (TESS) and Musculoskeletal Tumor Society (MSTS) into pilot tested versions. Translation transcultural adaptation was adhered to guidelines of International for Pharmacoeconomics Outcomes Research (ISPOR). Lower-limb TESS MSTS measures underwent forward-backward translation Finnish. A multidisciplinary panel reviewed process proposed pre-final Between March May...

10.1016/j.jval.2015.09.1253 article EN publisher-specific-oa Value in Health 2015-10-20

Major amputation may be required when limb-sparing surgery is not possible for musculoskeletal tumors, or has failed. The authors aimed to assess the function and health-related quality of life (HRQoL) after major lower extremity due tumors. Thirteen non-consecutive adult patients (two men 11 women; mean age 66 years) who had been fitted with a prosthesis having undergone tumor. Participants completed general health survey on 0-100mm (best-worst) visual analog scale, Locomotor Capabilities...

10.1016/j.jval.2017.08.313 article EN publisher-specific-oa Value in Health 2017-10-01
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