Lars-Petter Ness Granan

  • Researcher; MD, PhD
  • 23 02 61 61

Publications 2024

Ekholdt C, Granan LP, Stubhaug A, Toennis M, Salthe S, Lundeland B (2024)
Spinal cord stimulation has a place in the treatment of chronic pain conditions
Tidsskr Nor Laegeforen, 144 (7)
DOI 10.4045/tidsskr.24.0120, PubMed 38832603

Farnes N, Granan LP, Jacobsen HB, Stubhaug A, Vambheim SM (2024)
Associations of long-term clinical recovery and improved quality of life across ICD-11 chronic pain categories in a real-world registry study
Eur J Pain (in press)
DOI 10.1002/ejp.2250, PubMed 38372480

Publications 2023

Holmen H, Holm AM, Kilvær TK, Ljoså TM, Granan LP, Ekholdt C, Larsen LS, Fosse E (2023)
Digital Outpatient Services for Adults: Development of an Intervention and Protocol for a Multicenter Non-Randomized Controlled Trial
JMIR Res Protoc, 12, e46649
DOI 10.2196/46649, PubMed 37428533

Publications 2022

Reme SE, Ljosaa TM, Stubhaug A, Granan LP, Falk RS, Jacobsen HB (2022)
Perceived Injustice in Patients With Chronic Pain: Prevalence, Relevance, and Associations With Long-Term Recovery and Deterioration
J Pain, 23 (7), 1196-1207
DOI 10.1016/j.jpain.2022.01.007, PubMed 35151872

Publications 2021

Bratberg G, Leira K, Granan LP, Jonsbu E, Fadnes BL, Thuland SF, Myklebust TA (2021)
Learning oriented physiotherapy (LOP) in anxiety and depression: an 18 months multicentre randomised controlled trial (RCT)
Eur. J. Physiother., 23 (5), 295-304
DOI 10.1080/21679169.2020.1739747

Busse JW, Vankrunkelsven P, Zeng L, Heen AF, Merglen A, Campbell F, Granan LP, Aertgeerts B, Buchbinder R, Coen M, Juurlink D, Samer C, Siemieniuk RAC, Kumar N, Cooper L, Brown J, Lytvyn L, Zeraatkar D, Wang L, Guyatt GH, Vandvik PO, Agoritsas T (2021)
Medical cannabis or cannabinoids for chronic pain: a clinical practice guideline
BMJ, 374, n2040
DOI 10.1136/bmj.n2040, PubMed 34497062

Ljosaa TM, Berg HS, Jacobsen HB, Granan LP, Reme S (2021)
Translation and validation of the Norwegian version of the Injustice Experience Questionnaire
Scand J Pain, 22 (1), 77-87
DOI 10.1515/sjpain-2021-0177, PubMed 34881536

Stubhaug A, Ljosa TM, Granan LP, Vambheim SM (2021)
Opioid crisis could be called off
Tidsskr. Nor. Laegeforen., 141 (13), 1248

Stubhaug A, Ljoså TM, Granan LP, Vambheim SM (2021)
[Not Available]
Tidsskr Nor Laegeforen, 141 (2021-13)
DOI 10.4045/tidsskr.21.0621, PubMed 34596995

Vambheim SM, Stubhaug A, Ljoså TM, Granan LP (2021)
[S. Vambheim and colleagues respond]
Tidsskr Nor Laegeforen, 141 (18)
DOI 10.4045/tidsskr.21.0819, PubMed 34911268

Publications 2020

Linnemørken LTB, Granan LP, Reme SE (2020)
Prevalence of Posttraumatic Stress Symptoms and Associated Characteristics Among Patients With Chronic Pain Conditions in a Norwegian University Hospital Outpatient Pain Clinic
Front Psychol, 11, 749
DOI 10.3389/fpsyg.2020.00749, PubMed 32431641

Publications 2019

Granan LP (2019)
Pain revised - learning from anomalies
Scand J Pain, 20 (1), 29-32
DOI 10.1515/sjpain-2019-0100, PubMed 31661437

Granan LP (2019)
Tidsskr. Nor. Laegeforen., 139 (5), 469

Granan LP, Reme SE, Jacobsen HB, Stubhaug A, Ljoså TM (2019)
The Oslo University Hospital Pain Registry: development of a digital chronic pain registry and baseline data from 1,712 patients
Scand J Pain, 19 (2), 365-373
DOI 10.1515/sjpain-2017-0160, PubMed 30699072

Granan LP, Reme SE, Jacobsen HB, Stubhaug A, Ljoså TM (2019)
Reply to Letter to the Editor "Clinical registries are essential tools for ensuring quality and improving outcomes in pain medicine" by Baciarello et al
Scand J Pain, 19 (3), 635
DOI 10.1515/sjpain-2019-2010, PubMed 31031268

Straume-Næsheim TM, Randsborg PH, Mikaelsen JR, Sivertsen EA, Devitt B, Granan LP, Årøen A (2019)
Recurrent lateral patella dislocation affects knee function as much as ACL deficiency - however patients wait five times longer for treatment
BMC Musculoskelet Disord, 20 (1), 318
DOI 10.1186/s12891-019-2689-7, PubMed 31286929

Tschudi-Madsen H, Rødevand LN, Bøymo Kaarbø M, Granan LP (2019)
Chronic Widespread Pain in a tertiary pain clinic: classification overlap and use of a patient generated quality of life instrument
Scand J Pain, 19 (2), 245-255
DOI 10.1515/sjpain-2018-0097, PubMed 30465720

Publications 2018

Ingelsrud LH, Terwee CB, Terluin B, Granan LP, Engebretsen L, Mills KAG, Roos EM (2018)
Meaningful Change Scores in the Knee Injury and Osteoarthritis Outcome Score in Patients Undergoing Anterior Cruciate Ligament Reconstruction
Am J Sports Med, 46 (5), 1120-1128
DOI 10.1177/0363546518759543, PubMed 29517924

Publications 2017

Aga C, Kartus JT, Lind M, Lygre SHL, Granan LP, Engebretsen L (2017)
Risk of Revision Was Not Reduced by a Double-bundle ACL Reconstruction Technique: Results From the Scandinavian Registers
Clin Orthop Relat Res, 475 (10), 2503-2512
DOI 10.1007/s11999-017-5409-3, PubMed 28631112

Granan LP (2017)
We do not need a third mechanistic descriptor for chronic pain states! Not yet
Pain, 158 (1), 179
DOI 10.1097/j.pain.0000000000000735, PubMed 27984528

Rødevand L, Ljosaa TM, Granan LP, Knutzen T, Jacobsen HB, Reme SE (2017)
A pilot study of the individual placement and support model for patients with chronic pain
BMC Musculoskelet Disord, 18 (1), 550
DOI 10.1186/s12891-017-1908-3, PubMed 29282028

Skatteboe S, Røe C, Fagerland MW, Granan LP (2017)
Expectations of pain and functioning in patients with musculoskeletal disorders: a cross-sectional study
BMC Musculoskelet Disord, 18 (1), 48
DOI 10.1186/s12891-016-1386-z, PubMed 28125978

Skatteboe S, Røe C, Fagerland MW, Granan LP (2017)
The influence of expectations on improvements in pain and function in patients with neck/back/shoulder complaints: a cohort study
Eur J Phys Rehabil Med, 53 (6), 936-943
DOI 10.23736/S1973-9087.17.04608-1, PubMed 28534604

Østlie K, Granan LP (2017)
[Guidelines for rehabilitation after acquired upper limb amputation]
Tidsskr Nor Laegeforen, 137 (1), 15
DOI 10.4045/tidsskr.16.1025, PubMed 28073222

Publications 2016

Granan LP (2016)
The Ising Model Applied on Chronification of Pain
Pain Med, 17 (1), 5-9
DOI 10.1111/pme.12933, PubMed 26398917

Magnussen RA, Trojani C, Granan LP, Neyret P, Colombet P, Engebretsen L, Wright RW, Kaeding CC, MARS Group, SFA Revision ACL Group (2016)
Erratum to: Patient demographics and surgical characteristics in ACL revision: a comparison of French, Norwegian, and North American cohorts
Knee Surg Sports Traumatol Arthrosc, 24 (11), 3694-3695
DOI 10.1007/s00167-015-3835-x, PubMed 26537594

Soreide E, Granan LP, Hjorthaug GA, Espehaug B, Dimmen S, Nordsletten L (2016)
The Effect of Limited Perioperative Nonsteroidal Anti-inflammatory Drugs on Patients Undergoing Anterior Cruciate Ligament Reconstruction
Am J Sports Med, 44 (12), 3111-3118
DOI 10.1177/0363546516657539, PubMed 27496908

Publications 2015

Granan LP, Jacobsen HB, Reme SE, Stubhaug A, Hansson P, Breivik H, Ljoså TM (2015)
[Interdisciplinary education for better pain treatment]
Tidsskr Nor Laegeforen, 135 (12-13), 1114-5
DOI 10.4045/tidsskr.15.0498, PubMed 26130541

Ingelsrud LH, Granan LP, Terwee CB, Engebretsen L, Roos EM (2015)
Proportion of Patients Reporting Acceptable Symptoms or Treatment Failure and Their Associated KOOS Values at 6 to 24 Months After Anterior Cruciate Ligament Reconstruction: A Study From the Norwegian Knee Ligament Registry
Am J Sports Med, 43 (8), 1902-7
DOI 10.1177/0363546515584041, PubMed 25977523

LaPrade CM, Dornan GJ, Granan LP, LaPrade RF, Engebretsen L (2015)
Outcomes After Anterior Cruciate Ligament Reconstruction Using the Norwegian Knee Ligament Registry of 4691 Patients: How Does Meniscal Repair or Resection Affect Short-term Outcomes?
Am J Sports Med, 43 (7), 1591-7
DOI 10.1177/0363546515577364, PubMed 25868635

Owesen C, Sandven-Thrane S, Lind M, Forssblad M, Granan LP, Årøen A (2015)
Epidemiology of surgically treated posterior cruciate ligament injuries in Scandinavia
Knee Surg Sports Traumatol Arthrosc, 25 (8), 2384-2391
DOI 10.1007/s00167-015-3786-2, PubMed 26387121

Owesen C, Sivertsen EA, Engebretsen L, Granan LP, Årøen A (2015)
Patients With Isolated PCL Injuries Improve From Surgery as Much as Patients With ACL Injuries After 2 Years
Orthop J Sports Med, 3 (8), 2325967115599539
DOI 10.1177/2325967115599539, PubMed 26535391

Publications 2014

Granan LP, Baste V, Engebretsen L, Inacio MC (2014)
Associations between inadequate knee function detected by KOOS and prospective graft failure in an anterior cruciate ligament-reconstructed knee
Knee Surg Sports Traumatol Arthrosc, 23 (4), 1135-40
DOI 10.1007/s00167-014-2925-5, PubMed 24619491

Grindem H, Granan LP, Risberg MA, Engebretsen L, Snyder-Mackler L, Eitzen I (2014)
How does a combined preoperative and postoperative rehabilitation programme influence the outcome of ACL reconstruction 2 years after surgery? A comparison between patients in the Delaware-Oslo ACL Cohort and the Norwegian National Knee Ligament Registry
Br J Sports Med, 49 (6), 385-9
DOI 10.1136/bjsports-2014-093891, PubMed 25351782

Inacio MC, Chen Y, Maletis GB, Ake CF, Fithian DC, Granan LP (2014)
Injury pathology at the time of anterior cruciate ligament reconstruction associations with self-assessment of knee function
Clin J Sport Med, 24 (6), 461-7
DOI 10.1097/JSM.0000000000000077, PubMed 24569492

Kristiansen A, Brandt L, Agoritsas T, Akl EA, Berge E, Bondi J, Dahm AE, Granan LP, Halvorsen S, Holme PA, Flem Jacobsen A, Jacobsen EM, Neumann I, Sandset PM, Sætre T, Tveit A, Vartdal T, Guyatt G, Vandvik PO (2014)
Adaptation of trustworthy guidelines developed using the GRADE methodology: a novel five-step process
Chest, 146 (3), 727-734
DOI 10.1378/chest.13-2828, PubMed 25180723

Kristiansen A, Brandt L, Agoritsas T, Akl EA, Berge E, Flem Jacobsen A, Granan LP, Halvorsen S, Guyatt G, Vandvik PO (2014)
Applying new strategies for the national adaptation, updating, and dissemination of trustworthy guidelines: results from the Norwegian adaptation of the Antithrombotic Therapy and the Prevention of Thrombosis, 9th Ed: American College of Chest Physicians Evidence-Based Clinical Practice Guidelines
Chest, 146 (3), 735-761
DOI 10.1378/chest.13-2993, PubMed 25180724

Magnussen RA, Trojani C, Granan LP, Neyret P, Colombet P, Engebretsen L, Wright RW, Kaeding CC, MARS Group, SFA Revision ACL Group (2014)
Patient demographics and surgical characteristics in ACL revision: a comparison of French, Norwegian, and North American cohorts
Knee Surg Sports Traumatol Arthrosc, 23 (8), 2339-2348
DOI 10.1007/s00167-014-3060-z, PubMed 24850239

Skatteboe S, Røe C, Fagerland MW, Granan LP (2014)
Expectations for treatment outcomes in neck/back patients regarding improvements in pain and function. A cross-sectional pilot study
Eur J Phys Rehabil Med, 50 (6), 649-56
PubMed 24755775

Vandvik PO, Granan LP, Holme PA, Bondi J (2014)
[Antithrombotic therapy in surgery]
Tidsskr Nor Laegeforen, 134 (9), 925
DOI 10.4045/tidsskr.13.1580, PubMed 24828716

Publications 2013

Granan LP, Inacio MC, Maletis GB, Funahashi TT, Engebretsen L (2013)
Sport-specific injury pattern recorded during anterior cruciate ligament reconstruction
Am J Sports Med, 41 (12), 2814-8
DOI 10.1177/0363546513501791, PubMed 24005874

Publications 2012

Arøen A, Sivertsen EA, Owesen C, Engebretsen L, Granan LP (2012)
An isolated rupture of the posterior cruciate ligament results in reduced preoperative knee function in comparison with an anterior cruciate ligament injury
Knee Surg Sports Traumatol Arthrosc, 21 (5), 1017-22
DOI 10.1007/s00167-012-2132-1, PubMed 22801932

Granan LP, Inacio MC, Maletis GB, Funahashi TT, Engebretsen L (2012)
Intraoperative findings and procedures in culturally and geographically different patient and surgeon populations: an anterior cruciate ligament reconstruction registry comparison between Norway and the USA
Acta Orthop, 83 (6), 577-82
DOI 10.3109/17453674.2012.741451, PubMed 23116436

Ytterstad K, Granan LP, Ytterstad B, Steindal K, Fjeldsgaard KA, Furnes O, Engebretsen L (2012)
Registration rate in the Norwegian Cruciate Ligament Register: large-volume hospitals perform better
Acta Orthop, 83 (2), 174-8
DOI 10.3109/17453674.2012.678800, PubMed 22489890

Publications 2011

Inacio MC, Paxton EW, Maletis GB, Csintalan RP, Granan LP, Fithian DC, Funahashi TT (2011)
Patient and surgeon characteristics associated with primary anterior cruciate ligament reconstruction graft selection
Am J Sports Med, 40 (2), 339-45
DOI 10.1177/0363546511424130, PubMed 21976146

Maletis GB, Granan LP, Inacio MC, Funahashi TT, Engebretsen L (2011)
Comparison of community-based ACL reconstruction registries in the U.S. and Norway
J Bone Joint Surg Am, 93 Suppl 3, 31-6
DOI 10.2106/JBJS.K.00905, PubMed 22262420

Ytterstad K, Granan LP, Engebretsen L (2011)
[The Norwegian Cruciate Ligament Registry has a high degree of completeness]
Tidsskr Nor Laegeforen, 131 (3), 248-50
DOI 10.4045/tidsskr.10.0536, PubMed 21304574

Publications 2010

Magnussen RA, Granan LP, Dunn WR, Amendola A, Andrish JT, Brophy R, Carey JL, Flanigan D, Huston LJ, Jones M, Kaeding CC, McCarty EC, Marx RG, Matava MJ, Parker RD, Vidal A, Wolcott M, Wolf BR, Wright RW, Spindler KP, Engebretsen L (2010)
Cross-cultural comparison of patients undergoing ACL reconstruction in the United States and Norway
Knee Surg Sports Traumatol Arthrosc, 18 (1), 98-105
DOI 10.1007/s00167-009-0919-5, PubMed 19784630

Publications 2009

Granan LP, Bahr R, Lie SA, Engebretsen L (2009)
Timing of anterior cruciate ligament reconstructive surgery and risk of cartilage lesions and meniscal tears: a cohort study based on the Norwegian National Knee Ligament Registry
Am J Sports Med, 37 (5), 955-61
DOI 10.1177/0363546508330136, PubMed 19251674

Granan LP, Forssblad M, Lind M, Engebretsen L (2009)
The Scandinavian ACL registries 2004-2007: baseline epidemiology
Acta Orthop, 80 (5), 563-7
DOI 10.3109/17453670903350107, PubMed 19916690

Publications 2007

Granan LP, Bahr R, Steindal K, Furnes O, Engebretsen L (2007)
Development of a national cruciate ligament surgery registry: the Norwegian National Knee Ligament Registry
Am J Sports Med, 36 (2), 308-15
DOI 10.1177/0363546507308939, PubMed 17989167

Publications 2004

Granan LP, Engebretsen L, Bahr R (2004)
[Surgery for anterior cruciate ligament injuries in Norway]
Tidsskr Nor Laegeforen, 124 (7), 928-30
PubMed 15060639

Granan LP, Engebretsen L, Bahr R (2004)
Kirurgi ved fremre korsbåndsskader i Norge
In Tidsskrift for Den norske legeforening, Foreningen, Oslo, 124(2004)nr. 7, S. 928-930
BIBSYS 040935949

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