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1

Modification of poly(L-lactides) by blending: mechanical and hydrolytic behavior

Mari Hiljanen-Vainio, Paula Varpomaa, Jukka Seppälä, Pertti Törmälä

Journal:

Macromolecular Chemistry and Physics

Year:

1996

Language:

english

File:

PDF, 2.60 MB

english, 1996

2

A method to measure the fusion strength between expanded polystyrene (EPS) beads

Pentti JÄrvelÄ, Juha Sarlin, Pirkko JÄrvelÄ, Pertti TörmÄlÄ

Journal:

Journal of Materials Science

Year:

1986

Language:

english

File:

PDF, 985 KB

english, 1986

3

Melt impregnation parameters

Petri Peltonen, Pertti Törmälä

Journal:

Composite Structures

Year:

1994

Language:

english

File:

PDF, 505 KB

english, 1994

4

New generation biodegradable plate for fracture fixation: Comparison of bending strengths of mandibular osteotomies fixed with absorbable self-reinforced multi-layer poly-l-lactide plates and metallic plates — an experimental study in sheep

Riitta Suuronen, Timo Pohjonen, Laura Wessman, Pertti Törmälä, Seppo Vainionpää

Journal:

Clinical Materials

Year:

1992

Language:

english

File:

PDF, 1.28 MB

english, 1992

5

Strength retention properties of self-reinforced poly l-lactide (SR-PLLA) sutures compared with polyglyconate (MaxonR) and polydioxanone (PDS) sutures. An in vitro study

Pirkka Mäkelä, Timo Pohjonen, Pertti Törmälä, Timo Waris, Nureddin Ashammakhi

Journal:

Year:

2002

Language:

english

File:

PDF, 126 KB

english, 2002

6

The polymerization of a phenolformaldehyde resin in a porous glasswool composite

Pentti K. Järvelä, Pertti Törmälä, Jaakko Purola, Pirkko Järvelä

Journal:

Polymer Engineering & Science

Year:

1986

Language:

english

File:

PDF, 586 KB

english, 1986

7

Polyamide 6/wollastonite composites: Strength properties and their dependence on humidity and temperature

Pentti Järvelä, Jean C. Le Bell, Björn Sandelin, Pirkko Järvelä, Pertti Törmälä

Journal:

Journal of Materials Science

Year:

1986

Language:

english

File:

PDF, 1.21 MB

english, 1986

8

Bioabsorbable screw fixation for the treatment of ankle fractures

Antti Joukainen, Esa K. Partio, Pekka Waris, Jaakko Joukainen, Heikki Kröger, Pertti Törmälä, Pentti Rokkanen

Journal:

Journal of Orthopaedic Science

Year:

2007

Language:

english

File:

PDF, 251 KB

english, 2007

9

Use of Internal Bioabsorbable PLGA "Finger-Type" Stents in a Rabbit Tracheal Reconstruction Model

Robey, Thomas C., Välimaa, Tero, Murphy, Hedwig S., Tôrmâlâ, Pertti, Mooney, David J., Weatherly, Robert A.

Journal:

Archives of Otolaryngology - Head and Neck Surgery

Year:

2000

Language:

english

File:

PDF, 350 KB

english, 2000

10

Bioabsorbable Self-reinforced Poly-l-Lactide, Metallic, and Silicone Stents in the Management of Experimental Tracheal Stenosis

Korpela, Antti, Aarnio, Pertti, Sariola, Hannu, Törmälä, Pertti, Harjula, Ari

Journal:

Year:

1999

Language:

english

File:

PDF, 1.04 MB

english, 1999

11

Self-Reinforced Absorbable Screws in the Fixation of Displaced Ankle Fractures

Partio, Esa K., Böstman, Ole, Hirvensalo, Eero, Vainionpää, Seppo, Vihtonen, Kimmo, Pätiälä, Hannu, Törmälä, Pertti, Rokkanen, Pentti

Journal:

Journal of Orthopaedic Trauma

Year:

1992

File:

PDF, 569 KB

1992

12

Initial stability of femoral neck osteosynthesis with absorbable self-reinforced poly-L-lactide (SR-PLLA) and metallic screws: A comparative study on 21 cadavers

Jarkko Vasenius, Timo Pohjonen, Pertti Törmälä, Antti Penttilä, Pentti Rokkanen

Journal:

Journal of Biomedical Materials Research Part B: Applied Biomaterials

Year:

1998

Language:

english

File:

PDF, 137 KB

english, 1998

13

The effect of an intramedullary carbon-fiber-reinforced liquid crystalline polymer implant on bone: An experimental study on rabbits

Jukka Kettunen, Antero Mäkelä, Hannu Miettinen, Timo Nevalainen, Mika Heikkilä, Pertti Törmälä, Pentti Rokkanen

Journal:

Journal of Biomedical Materials Research Part B: Applied Biomaterials

Year:

1998

Language:

english

File:

PDF, 187 KB

english, 1998

14

Application of a self-reinforced polyglycolic acid (SR-PGA) membrane to the closure of an abdominal fascial defect in rats

Antero Heino, Anita Naukkarinen, Timo Pietiläinen, Minna E. Merasto, Pertti Törmälä, Timo Pohjonen, E. Antero Mäkelä

Journal:

Journal of Biomedical Materials Research Part B: Applied Biomaterials

Year:

1999

Language:

english

File:

PDF, 230 KB

english, 1999

15

Comparison of strength properties of poly-L/D-lactide (PLDLA) 96/4 and polyglyconate (Maxon®) sutures: In vitro, in the subcutis, and in the achilles tendon of rabbits

Jarmo Kangas, Senja Paasimaa, Pirkka Mäkelä, Johana Leppilahti, Pertti Törmälä, Timo Waris, Nureddin Ashammakhi

Journal:

Journal of Biomedical Materials Research Part B: Applied Biomaterials

Year:

2001

Language:

english

File:

PDF, 83 KB

english, 2001

16

Bioabsorbable surgical composite materials

Prof. Pertti Törmälä

Journal:

Advanced Materials

Year:

1992

Language:

english

File:

PDF, 283 KB

english, 1992

17

On the dynamic state of plasticized poly(vinyl chloride)

Pertti Törmälä

Journal:

Macromolecular Materials and Engineering

Year:

1974

Language:

english

File:

PDF, 271 KB

english, 1974

18

Carbon-13 nuclear magnetic resonance spectroscopy of poly(ethy1ene glycol)

J. Johan Lindberg, Ilkka Sirén, Erkki Rahkamaa, Pertti Törmälä

Journal:

Macromolecular Materials and Engineering

Year:

1976

Language:

english

File:

PDF, 164 KB

english, 1976

19

Strength retention of self-reinforced, absorbable polyglycolide rods in hydrolytic environment

Pertti Törmälä, Heta-Maija Mikkola, Jarkko Vasenius, Seppo Vainionpää, Pentti Rokkanen

Journal:

Macromolecular Materials and Engineering

Year:

1991

Language:

english

File:

PDF, 269 KB

english, 1991

20

Blends of poly(ε-caprolactone-b-lactic acid) and poly(lactic acid) for hot-melt applications

Mikael Stolt, Mikko Viljanmaa, Anders Södergård, Pertti Törmälä

Journal:

Journal of Applied Polymer Science

Year:

2004

Language:

english

File:

PDF, 136 KB

english, 2004

21

Injection molding and extrusion of composites of low density polyethylene (ldpe) and plywood grindings

Pertti Törmälä, Esko Pääkkonen, Kristian Luoto

Journal:

Journal of Applied Polymer Science

Year:

1985

Language:

english

File:

PDF, 525 KB

english, 1985

22

Fiber formation and characterization of a thermotropic LCP

Juha Sarlin, Pertti Törmälä

Journal:

Journal of Applied Polymer Science

Year:

1990

Language:

english

File:

PDF, 1.22 MB

english, 1990

23

Heat treatment studies of a TLCP fiber

Juha Sarlin, Pertti TörmäLä

Journal:

Journal of Applied Polymer Science

Year:

1993

Language:

english

File:

PDF, 559 KB

english, 1993

24

Processing and characterization of absorbable polylactide polymers for use in surgical implants

Dr. Kirk P. Andriano, Timo Pohjonen, Pertti Törmälä

Journal:

Journal of Applied Biomaterials

Year:

1994

Language:

english

File:

PDF, 689 KB

english, 1994

25

A histomorphological study on self-reinforced polyglycolide (SR-PGA) osteosynthesis implants coated with slowly absorbable polymers

Jarkko Vasenius, Seppo Vainionpää, Kimmo Vihtonen, Matti Mero, Antero Mäkelä, Pertti Törmälä, Pentti Rokkanen

Journal:

Journal of Biomedical Materials Research Part B: Applied Biomaterials

Year:

1990

Language:

english

File:

PDF, 1.23 MB

english, 1990

26

Platelet responses and coagulation activation on polylactide and heparin–polycaprolactone-L-lactide -coated polylactide stent struts

Eeva-Maija Hietala, Paula Maasilta, Tero Välimaa, Ari L.J. Harjula, Pertti Törmälä, Ulla-Stina Salminen, Riitta Lassila

Journal:

Journal of Biomedical Materials Research Part A

Year:

2003

Language:

english

File:

PDF, 170 KB

english, 2003

27

In vitro and in vivo behavior of self-reinforced bioabsorbable polymer and self-reinforced bioabsorbable polymer/bioactive glass composites

Henna Niiranen, Tuomo Pyhältö, Pentti Rokkanen, Minna Kellomäki, Pertti Törmälä

Journal:

Journal of Biomedical Materials Research Part A

Year:

2004

Language:

english

File:

PDF, 366 KB

english, 2004

28

In vitro and in vivo testing of bioabsorbable antibiotic containing bone filler for osteomyelitis treatment

Jyri K. Koort, Esa Suokas, Minna Veiranto, Tatu J. Mäkinen, Jari Jalava, Pertti Törmälä, Hannu T. Aro

Journal:

Journal of Biomedical Materials Research Part A

Year:

2006

Language:

english

File:

PDF, 188 KB

english, 2006

29

Self-reinforced polylactide/polyglycolide 80/20 screws take more than 1½ years to resorb in rabbit cranial bone

Johanna Tiainen, Ylermi Soini, Pertti Törmälä, Timo Waris, Nureddin Ashammakhi

Journal:

Journal of Biomedical Materials Research Part B: Applied Biomaterials

Year:

2004

Language:

english

File:

PDF, 413 KB

english, 2004

30

Ciprofloxacin-releasing bioabsorbable polymer is superior to titanium in preventing Staphylococcus epidermidis attachment and biofilm formation in vitro

Sanna-Mari Niemelä, Irma Ikäheimo, Markku Koskela, Minna Veiranto, Esa Suokas, Pertti Törmälä, Timo Waris, Nureddin Ashammakhi, Hannu Syrjälä

Journal:

Journal of Biomedical Materials Research Part B: Applied Biomaterials

Year:

2006

Language:

english

File:

PDF, 327 KB

english, 2006

31

Comparison of the fixation of subcapital femoral neck osteotomies with absorbable self-reinfoced poly-L-lactide lag-screws or metallic screws in sheep

Kirsi Jukkala-Partio, Outi Laitinen, Esa K. Partio, Jarkko Vasenius, Seppo Vainionpää, Timo Pohjonen, Pertti Törmälä, Pentti Rokkanen

Journal:

Journal of Orthopaedic Research

Year:

1997

Language:

english

File:

PDF, 399 KB

english, 1997

32

Comparison of the tissue response to absorbable self-reinforced polylactide screws and metallic screws in the fixation of cancellous bone osteotomies: An experimental study on the rabbit distal femur

Janne T. Viljanen, Harri K. Pihlajamäki, Pertti O. Törmälä, Pentti U. Rokkanen

Journal:

Journal of Orthopaedic Research

Year:

1997

Language:

english

File:

PDF, 1.12 MB

english, 1997

33

Segmental motions of spin-labelled poly(ethylene oxide) in dilute solution

Dietrich Braun, Pertti Törmälä

Journal:

Macromolecular Chemistry and Physics

Year:

1978

Language:

english

File:

PDF, 290 KB

english, 1978

34

Stabile polyphenoxyle, 5. Sterisch gehinderte vinylphenole zur spinmarkierung von polymeren

Dietrich Braun, Pertti Törmälä, Wolfgang Wittig

Journal:

Macromolecular Chemistry and Physics

Year:

1981

File:

PDF, 384 KB

1981

35

A tensile testing machine for a scanning electron microscope; Its structure, properties and applications

Pentti K. Järvelä, Jaakko J. Purola, Pertti Törmälä

Journal:

Polymer Testing

Year:

1985

Language:

english

File:

PDF, 1.04 MB

english, 1985

36

Comparison of in vitro hydrolysis, subcutaneous and intramedullary implantation to evaluate the strength retention of absorbable osteosynthesis implants

Jarkko Vasenius, Seppo Vainionpää, Kimmo Vihtonen, Antero Mäkelä, Pentti Rokkanen, Matti Mero, Pertti Törmälä

Journal:

Year:

1990

Language:

english

File:

PDF, 469 KB

english, 1990

37

Mechanical properties of biodegradable ligament augmentation device of poly(l-lactide) in vitro and in vivo

Outi Laitinen, Pertti Törmälä, Ritva Taurio, Kai Skutnabb, Kirsi Saarelainen, Tiina Iivonen, Seppo Vainionpää

Journal:

Year:

1992

Language:

english

File:

PDF, 697 KB

english, 1992

38

Shear strength of a distal rabbit femur during consolidation of an osteotomy fixed with a polylactide expansion plug

Harri Pihlajamäki, Ole Böstman, Mikko Manninen, Unto Päivärinta, Ritva Taurio, Markku Tamminmäki, Pertti Törmälä, Pentti Rokkanen

Journal:

Year:

1994

Language:

english

File:

PDF, 805 KB

english, 1994

39

An empirical model of the strength of a porous glass wool composite

Pentii Järvelä, Timo Pohjonen, Pertti Törmälä

Journal:

Composites Science and Technology

Year:

1985

Language:

english

File:

PDF, 560 KB

english, 1985

40

The effect of a diagonally placed penetrating biodegradable implant on the epiphyseal plate. An experimental study on growing rabbits with special regard to polydioxanone

E. Antero Mäkelä, Seppo Vainionpää, Kimmo Vihtonen, Matti Mero, Pertti Helevirta, Pertti Törmälä, Pentti Rokkanen

Journal:

Clinical Materials

Year:

1988

Language:

english

File:

PDF, 1.32 MB

english, 1988

41

Biodegradable self-reinforced polyglycolide (SR-PGA) composite rods coated with slowly biodegradable polymers for fracture fixation: strength and strength retention in vitro and in vivo

Jarkko Vasenius, Seppo Vainionpää, Kimmo Vihtonen, Matti Mero, Jukka Mikkola, Pentti Rokkanen, Pertti Törmälä

Journal:

Clinical Materials

Year:

1989

Language:

english

File:

PDF, 957 KB

english, 1989

42

Healing of physeal fracture after fixation with biodegradable self-reinforced polyglycolic acid pins. An experimental study on growing rabbits

E. Antero Mäkelä, Seppo Vainionpää, Kimmo Vihtonen, Matti Mero, Juha Laiho, Pertti Törmälä, Pentti Rokkanen

Journal:

Clinical Materials

Year:

1990

Language:

english

File:

PDF, 1.11 MB

english, 1990

43

Do intramedullary rods of self-reinforced poly-l-lactide or poly-dl/l-lactide cause lactic acid acidosis in rabbits?

Jarkko Vasenius, Ari Majola, Eeva-Liisa Miettinen, Pertti Törmälä, Pentti Rokkanen

Journal:

Clinical Materials

Year:

1992

Language:

english

File:

PDF, 880 KB

english, 1992

44

Early effects of the self-reinforced PGA implant on a growing bone: an experimental study on growing rats

Ilkka Lautiainen, Hannu Miettinen, Antero Mäkelä, Pentti Rokkanen, Pertti Törmälä

Journal:

Clinical Materials

Year:

1994

Language:

english

File:

PDF, 892 KB

english, 1994

45

Absorbable membranes for bone repair: An experimental study on rabbits

Nureddin Ashammakhi, Antero Mäkelä, Kimmo Vihtonen, Pentti Rokkanen, Pertti Törmälä

Journal:

Clinical Materials

Year:

1994

Language:

english

File:

PDF, 865 KB

english, 1994

46

Absorbable self-reinforced polyglycolide (SR-PGA) screws for the fixation of fractures and osteotomies: Strength and strength retention in vitro and in vivo

Jarkko Vasenius, Pertti Helevirta, Hilkka Kuisma, Pentti Rokkanen, Pertti Törmälä

Journal:

Clinical Materials

Year:

1994

Language:

english

File:

PDF, 453 KB

english, 1994

47

The use of biodegradable scaffold as an alternative to silicone implant arthroplasty for small joint reconstruction: An experimental study in minipigs

Eero Waris, Nureddin Ashammakhi, Mauri Lehtimäki, Riitta-Mari Tulamo, Minna Kellomäki, Pertti Törmälä, Yrjö T. Konttinen

Journal:

Year:

2008

Language:

english

File:

PDF, 1.79 MB

english, 2008

48

Fibre reinforced bioresorbable composites for spinal surgery

Mikko Huttunen, Nureddin Ashammakhi, Pertti Törmälä, Minna Kellomäki

Journal:

Acta Biomaterialia

Year:

2006

Language:

english

File:

PDF, 344 KB

english, 2006

49

Fixation of distal femoral osteotomies with self-reinforced polymer/bioactive glass rods: an experimental study on rabbits

Tuomo Pyhältö, Matti Lapinsuo, Hannu Pätiälä, Mika Pelto, Pertti Törmälä, Pentti Rokkanen

Journal:

Year:

2005

Language:

english

File:

PDF, 599 KB

english, 2005

50

Long-term bone tissue reaction to polyethylene oxide/polybutylene terephthalate copolymer (Polyactive®) in metacarpophalangeal joint reconstruction

Eero Waris, Nureddin Ashammakhi, Mauri Lehtimäki, Riitta-Mari Tulamo, Pertti Törmälä, Minna Kellomäki, Yrjö T. Konttinen

Journal:

Year:

2008

Language:

english

File:

PDF, 1.52 MB

english, 2008

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