Fellowship Program Information
Affiliation (Center Type): The program is affiliated with Karolinska Institutet and the Stockholm Sports Trauma Research Center, providing a strong academic and clinical environment. Participants receive supervision from experienced orthopaedic surgeons and researchers. (Teaching, Academic, University)
Fellowship Training Session or Other Educational Opportunity Length:
Can the Center customize educational opportunities for participants?: No
Fellows Accepted Per Year: 3
Faculty Participating in Fellowship Education: Anders Stålman, MD, PhD, Knee, shoulder arthroscopy
Christoffer von Essen MD, PhD, Knee, shoulder arthroscopy
Riccardo Cristiani MD, PhD, Knee, shoulder arthroscopy
Eva Moström, MD, PhD, Pediatric Orthopedics
Frida Hansson, MD, Knee arthroscopy
Recent activity of Teaching Center:
Financial Support and Expenses
Types of Financial Support Available: Internal
Other support that the Teaching Center can provide: Direct Application
Estimate of Living Expenses (Housing and other major costs):
Anticipated Fellowship Participation in Surgical Cases
Area(s) of Specialty: Knee Arthroplasty Knee Arthroscopy Hip Arthroplasty Shoulder Arthroscopy
Role of the fellow with respect to Clinical, Surgical, Research, and other opportunities:
Types of Educational Opportunities:
Research projects, research facilities and resources, cadaver labs, publication opportunities, integration of the patient and public involvement, and the role of the fellow: 1: Cristiani R, Mouton C, Stålman A, Seil R. Meniscal ramp lesions: a lot is
known, but a lot is also unknown…. Knee Surg Sports Traumatol Arthrosc. 2023
Jul;31(7):2535-2539. doi: 10.1007/s00167-022-07292-w. Epub 2022 Dec 22. PMID:
36544052.
2: Cristiani R, van de Bunt F, Kvist J, Stålman A. High prevalence of meniscal
ramp lesions in anterior cruciate ligament injuries. Knee Surg Sports Traumatol
Arthrosc. 2023 Jan;31(1):316-324. doi: 10.1007/s00167-022-07135-8. Epub 2022 Aug
31. PMID: 36045182; PMCID: PMC9859899.
3: Cristiani R, Forssblad M, Helito CP, Edman G, Eriksson K, Stålman A. A High
Grade of Postoperative Knee Laxity Is Associated With an Increased Hazard of
Revision Surgery: A Cohort Study of 4697 Patients With Primary ACL
Reconstruction. Am J Sports Med. 2024 Jul;52(8):1937-1943. doi:
10.1177/03635465241253840. Epub 2024 May 31. PMID: 38819091; PMCID: PMC11264573.
4: Cristiani R, van de Bunt F, Kvist J, Stålman A. High prevalence of associated
injuries in anterior cruciate ligament tears: A detailed magnetic resonance
imaging analysis of 254 patients. Skeletal Radiol. 2024 Nov;53(11):2417-2427.
doi: 10.1007/s00256-024-04665-9. Epub 2024 Mar 27. PMID: 38532195; PMCID:
PMC11410909.
5: Koca F, Stålman A, Vestberg C, Cristiani R, Fältström A. Poorer patient-
reported knee function and quality of life, but not activity level, after
revision ACL reconstruction compared with primary ACL reconstruction: a matched-
pair analysis with a minimum 5-year follow-up. BMC Musculoskelet Disord. 2023
Oct 23;24(1):831. doi: 10.1186/s12891-023-06954-1. PMID: 37872529; PMCID:
PMC10594802.
6: Sarakatsianos V, Cristiani R, Forssblad M, Edman G, Stålman A. Patient's
Height and Sex Predict Graft Diameter: A Cohort Study of 4,519 Patients With
Primary Anterior Cruciate Ligament Reconstruction Using Semitendinosus
Autograft. Arthroscopy. 2024 Oct;40(10):2588-2591. doi:
10.1016/j.arthro.2024.05.030. Epub 2024 Jun 16. PMID: 38889850.
7: Cristiani R, Forssblad M, Edman G, Eriksson K, Stålman A. The Addition of the
Gracilis Tendon to a Semitendinosus Tendon Autograft Is Not Associated With Knee
Muscle Strength, Subjective Knee Function, or Revision Surgery After Anterior
Cruciate Ligament Reconstruction. Arthroscopy. 2024 Jun;40(6):1824-1832. doi:
10.1016/j.arthro.2023.10.029. Epub 2023 Oct 28. PMID: 38008759.
8: Cristiani R, van de Bunt F, Kvist J, Stålman A. High Prevalence of
Superficial and Deep Medial Collateral Ligament Injuries on Magnetic Resonance
Imaging in Patients With Anterior Cruciate Ligament Tears. Arthroscopy. 2024
Jan;40(1):103-110. doi: 10.1016/j.arthro.2023.05.029. Epub 2023 Jun 22. PMID:
37353094.
9: Cristiani R, Hamrin Senorski E, Helito CP, Samuelsson K, Eriksson K, Stålman
A. Delayed Surgery, Medial Meniscus Injury, and Younger Age Are All Factors
Significantly Associated With High-Grade Knee Laxity Before ACL Reconstruction.
Orthop J Sports Med. 2025 Jul 25;13(7):23259671251356698. doi:
10.1177/23259671251356698. PMID: 40734763; PMCID: PMC12304503.
10: Sarakatsianos V, Cristiani R, Edman G, Stålman A. Diameter of Quadrupled
Semitendinosus Autograft in Primary Anterior Cruciate Ligament Reconstruction
Did Not Impact Early Revision Rate or Functional Outcome in a Large Cohort of
Patients. Arthroscopy. 2025 Feb;41(2):239-245. doi:
10.1016/j.arthro.2024.07.018. Epub 2024 Jul 26. PMID: 39069025.
11: Hansson F, Stålman A, Edman G, Janarv PM, Moström EB, Cristiani R. Knee
hyperextension is not associated with anterior knee laxity, subjective knee
function or revision surgery after anterior cruciate ligament reconstruction in
children and adolescents. Knee Surg Sports Traumatol Arthrosc. 2025 May 26. doi:
10.1002/ksa.12707. Epub ahead of print. PMID: 40417807.
12: von Essen C, Cristiani R, Kekki C, Rizvanovic D, Stålman A. Isolated
meniscal repair, medial meniscus repair and older age increase failure risk
after all-inside meniscal repair: A cohort study of 2264 patients. Knee Surg
Sports Traumatol Arthrosc. 2025 Jul 7. doi: 10.1002/ksa.12780. Epub ahead of
print. PMID: 40622005.
13: Kekki C, Cristiani R, Stålman A, von Essen C. Single-stage ACL
reconstruction and displaced bucket handle Meniscus repair is associated with
lower Meniscus repair failure rates compared to two-stage surgery. J Exp Orthop.
2025 Mar 7;12(1):e70199. doi: 10.1002/jeo2.70199. PMID: 40059954; PMCID:
PMC11888572.
14: Cristiani R, Hamrin Senorski E, Helito CP, Samuelsson K, Stålman A. Revision
ACL reconstruction, but not bilateral ACL reconstruction, is associated with
clinically relevant inferior subjective knee function compared with primary ACL
reconstruction: A comparative analysis of 6831 patients. Knee Surg Sports
Traumatol Arthrosc. 2025 Jun;33(6):2044-2051. doi: 10.1002/ksa.12496. Epub 2024
Oct 3. PMID: 39359210; PMCID: PMC12104776.
15: Helito CP, da Silva AGM, Cristiani R, Stålman A, de Pádua VBC, Gobbi RG,
Pécora JR. Patients submitted to re-revision ACL reconstruction present more
knee laxity, more complications, and a higher failure rate than patients
submitted to the first revision ACL reconstruction. Knee. 2025 Jan;52:147-154.
doi: 10.1016/j.knee.2024.11.004. Epub 2024 Nov 21. PMID: 39577113.
16: López Personat A, Cristiani R, Stålman A, Wänman J, Von Essen C. High
failure rate in meniscal repair when preceding anterior cruciate ligament
reconstruction: An analysis of two-stage surgery for concomitant ACL injury and
traumatic meniscus tear. Knee Surg Sports Traumatol Arthrosc. 2025
Jul;33(7):2323-2333. doi: 10.1002/ksa.12593. Epub 2025 Jan 29. PMID: 39878124;
PMCID: PMC12205414.
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