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Clinical Outcomes and Osteoarthritis at Very Long-term Follow-up After ACL Reconstruction: A Systematic Review and Meta-analysis. Orthopaedic Journal of Sports Medicine. January 2022. doi:10.1177/23259671211062238
Grassi A, Pizza N, Al-zu’bi BBH, Fabbro GD, Lucidi GA, Zaffagnini S.

A Comprehensive Framework to Evaluate the Effects of Anterior Cruciate Ligament Injury and Reconstruction on Graft and Cartilage Status through the Analysis of MRI T2 Relaxation Time and Knee Laxity: A Pilot Study. Life (Basel). 2021 Dec 10;11(12):1383.
Marchiori G, Cassiolas G, Berni M, Grassi A, Dal Fabbro G, Fini M, Filardo G, Zaffagnini S, Lopomo NF.

One-stage bilateral unicompartmental knee arthroplasty is a suitable option vs. the two-stage approach: a meta-analysis. EFORT Open Rev. 2021 Nov 19;6(11):1063-1072. doi: 10.1302/2058-5241.6.210047.
Feltri P, Mondini Trissino da Lodi C, Grassi A, Zaffagnini S, Candrian C, Filardo G.

The Cadaveric Studies and the Definition of the Antero-Lateral Ligament of the Knee: From the Anatomical Features to the Patient-Specific Reconstruction Surgical Techniques. Int J Environ Res Public Health. 2021 Dec 6;18(23):12852.
Dal Fabbro G, Agostinone P, Lucidi GA, Pizza N, Maitan N, Grassi A, Zaffagnini S.

Systematic Video Analysis of Anterior Cruciate Ligament Injuries in Professional Male Rugby Players: Pattern, Injury Mechanism, and Biomechanics in 57 Consecutive Cases. Orthop J Sports Med. 2021 Nov 15;9(11):23259671211048182.
Della Villa F, Tosarelli F, Ferrari R, Grassi A, Ciampone L, Nanni G, Zaffagnini S, Buckthorpe M.

Minimal Clinically Important Difference and Patient Acceptable Symptom State in Patients With Knee Osteoarthritis Treated With PRP Injection. Orthop J Sports Med. 2021 Oct 5;9(10):23259671211026242.
Boffa A, Andriolo L, Franceschini M, Martino AD, Asunis E, Grassi A, Zaffagnini S, Filardo G.

A 2D qualitative movement assessment of a deceleration task detects football players with high knee joint loading. Knee Surg Sports Traumatol Arthrosc. 2021 Dec;29(12):4032-4040. doi: 10.1007/s00167-021-06709-2.
Di Paolo S, Zaffagnini S, Tosarelli F, Aggio F, Bragonzoni L, Grassi A, Della Villa F.

Case Report: Anterior Cruciate Ligament Calcification in a Patient With Chondrocalcinosis: Micro-Computed Tomography Presentation. Front Surg. 2021 Jul 29;8:680234.
Grassi A, Dal Fabbro G, Fini M, Zaffagnini S, Parrilli A.

Dynamic Radiostereometry Evaluation of 2 Different Anterior Cruciate Ligament Reconstruction Techniques During a Single-Leg Squat. Orthop J Sports Med. 2021 Jul 15;9(7):23259671211011940.
Di Paolo S, Agostinone P, Grassi A, Lucidi GA, Pinelli E, Bontempi M, Marchiori G, Bragonzoni L, Zaffagnini S.

Increased Rotatory Laxity after Anterolateral Ligament Lesion in Anterior Cruciate Ligament- (ACL-) Deficient Knees: A Cadaveric Study with Noninvasive Inertial Sensors. Biomed Res Int. 2021 Jul 6;2021:7549750.
Grassi A, Roberti di Sarsina T, Di Paolo S, Signorelli C, Bonanzinga T, Raggi F, Mosca M, Zaffagnini S.

Poor Motor Coordination Elicits Altered Lower Limb Biomechanics in Young Football (Soccer) Players: Implications for Injury Prevention through Wearable Sensors. Sensors (Basel). 2021 Jun 25;21(13):4371.
Di Paolo S, Zaffagnini S, Pizza N, Grassi A, Bragonzoni L.

Minimum 10-Year Clinical Outcome of Lateral Collagen Meniscal Implants for the Replacement of Partial Lateral Meniscal Defects: Further Results From a Prospective Multicenter Study. Orthop J Sports Med. 2021 May 25;9(5):2325967121994919.
Grassi A, Lucidi GA, Filardo G, Agostinone P, Macchiarola L, Bulgheroni P, Bulgheroni E, Zaffagnini S.

In Vivo Kinematic Analysis of Lateral Meniscal Allograft Transplantation With Soft Tissue Fixation. Orthop J Sports Med. 2021 May 21;9(5):23259671211000459.
Macchiarola L, Di Paolo S, Grassi A, Dal Fabbro G, Lucidi GA, Cucurnia I, Zaffagnini S.

Higher 90-Day Mortality after Surgery for Hip Fractures in Patients with COVID-19: A Case-Control Study from a Single Center in Italy. Int J Environ Res Public Health. 2021 May 13;18(10):5205.
Grassi A, Andriolo L, Golinelli D, Tedesco D, Rosa S, Gramegna P, Ciaffi J, Meliconi R, Landini MP, Filardo G, Fantini MP, Zaffagnini S.

Satisfactory clinical results and low failure rate of medial collagen meniscus implant (CMI) at a minimum 20 years of follow-up. Knee Surg Sports Traumatol Arthrosc. 2021 Dec;29(12):4270-4277.
Lucidi GA, Grassi A, Al-Zu’bi BBH, Macchiarola L, Agostinone P, Marcacci M, Zaffagnini S.

Rehabilitation and Return to Sport Assessment after Anterior Cruciate Ligament Injury: Quantifying Joint Kinematics during Complex High-Speed Tasks through Wearable Sensors. Sensors (Basel). 2021 Mar 26;21(7):2331.
Di Paolo S, Lopomo NF, Della Villa F, Paolini G, Figari G, Bragonzoni L, Grassi A, Zaffagnini S.

Knee position at the moment of bone bruise could reflect the late phase of non-contact anterior cruciate ligament injury rather than the mechanisms leading to ligament failure. Knee Surg Sports Traumatol Arthrosc. 2021 Dec;29(12):4138-4145.
Grassi A, Agostinone P, Di Paolo S, Lucidi GA, Macchiarola L, Bontempi M, Marchiori G, Bragonzoni L, Zaffagnini S.

Anatomy, magnetic resonance and arthroscopy of the popliteal hiatus of the knee: normal aspect and pathological conditions. EFORT Open Rev. 2021 Jan 4;6(1):61-74.
Grassi A , Pizza N, Andrea Lucidi G, Macchiarola L, Mosca M, Zaffagnini S.

Good Subjective Outcomes, Stable Knee and High Return to Sport after Tibial Eminence Avulsion Fracture in Children. Children (Basel). 2020 Oct 9;7(10):173.
Stallone S, Selleri F, Trisolino G, Grassi A, Macchiarola L, Magnani M, Olivotto E, Zaffagnini S, Stilli S, Catani F.

Editorial Commentary: It Takes Two to Tango: The Shared Decision of Return to Sport After Meniscal Transplantation. Arthroscopy. 2020 Sep;36(9):2464-2465.
Grassi A, Zaffagnini S.

Letter to the Editor on “Prediction of Knee Kinematics at Time of Noncontact Anterior Cruciate Ligament Injuries Based on Bone Bruises”. Ann Biomed Eng. 2021 Jan;49(1):1-3.
Grassi A, Agostinone P, Di Paolo S, Zaffagnini S.

PRP Injections for the Treatment of Knee Osteoarthritis: A Meta-Analysis of Randomized Controlled Trials. Cartilage. 2020 Jun 19:1947603520931170. doi: 10.1177/1947603520931
Filardo G, Previtali D, Napoli F, Candrian C, Zaffagnini S, Grassi A.

The COVID-19 outbreak in Italy: perspectives from an orthopaedic hospital. Int Orthop. 2020 Aug;44(8):1543-1547.
Grassi A, Pizza N, Tedesco D, Zaffagnini S.

No differences in knee kinematics between active and passive flexion-extension movement: an intra-operative kinematic analysis performed during total knee arthroplasty. J Exp Orthop. 2020 Mar 12;7(1):12.
Grassi A, Pizza N, Lopomo NF, Marcacci M, Capozzi M, Marcheggiani Muccioli GM, Colle F, Zaffagnini S.

Epidemiology of Anterior Cruciate Ligament Injury in Italian First Division Soccer Players. Sports Health. 2020 May/Jun;12(3):279-288.
Grassi A, Macchiarola L, Filippini M, Lucidi GA, Della Villa F, Zaffagnini S.

Return to play after surgery for isolated unstable syndesmotic ankle injuries (West Point grade IIB and III) in 110 male professional football players: a retrospective cohort study. Br J Sports Med. 2020 Oct;54(19):1168-1173.
D’Hooghe P, Grassi A, Alkhelaifi K, Calder J, Baltes TPA, Zaffagnini S, Ekstrand J.

The biomechanical role of meniscal allograft transplantation and preliminary in-vivo kinematic evaluation. J Exp Orthop. 2019 Jun 25;6(1):27.
Zaffagnini S, Di Paolo S, Stefanelli F, Dal Fabbro G, Macchiarola L, Lucidi GA, Grassi A.

Patient-reported outcome measures (PROMs) after elective hip, knee and shoulder arthroplasty: protocol for a prospective cohort study. BMC Musculoskelet Disord. 2019 Aug 15;20(1):374.
Grassi A, Golinelli D, Tedesco D, Rolli M, Bordini B, Amabile M, Rucci P, Fantini MP, Zaffagnini S.

Return to Sport Activity After Meniscal Allograft Transplantation: At What Level and at What Cost? A Systematic Review and Meta-analysis. Sports Health. 2019 Mar/Apr;11(2):123-133.
Grassi A, Bailey JR, Filardo G, Samuelsson K, Zaffagnini S, Amendola A.

Should the patella be everted during primary total knee arthroplasty? A systematic review of overlapping meta-analyses. J Orthop Surg (Hong Kong). 2019 Jan-Apr;27(1)
Grassi A, Compagnoni R, Ferrua P, Pasqualotto S, Zaolino C, Zaffagnini S, Randelli P.

New Trends in Anterior Cruciate Ligament Reconstruction: A Systematic Review of National Surveys of the Last 5 Years. Joints. 2018 Sep 27;6(3):177-187.
Grassi A, Carulli C, Innocenti M, Mosca M, Zaffagnini S, Bait C; SIGASCOT Arthroscopy Committee.

Mapping functions in health-related quality of life: mapping from the Achilles Tendon Rupture Score to the EQ-5D. Knee Surg Sports Traumatol Arthrosc. 2018 Oct;26(10):3083-3088.
Hua AY, Westin O, Hamrin Senorski E, Svantesson E, Grassi A, Zaffagnini S, Samuelsson K, Svensson M.

Does Donor Age of Nonirradiated Achilles Tendon Allograft Influence Mid-Term Results of Revision ACL Reconstruction? Joints. 2018 Feb 12;6(1):10-15.
Zaffagnini S, Roberti di Sarsina T, Bonanzinga T, Nitri M, Macchiarola L, Stefanelli F, Lucidi G, Grassi A.

Anterior cruciate ligament revision with Achilles tendon allograft in young athletes. Orthop Traumatol Surg Res. 2018 Apr;104(2):209-215.
Zaffagnini S, Grassi A, Marcheggiani Muccioli GM, Roberti Di Sarsina T, Macchiarola L, Mosca M, Neri MP, Marcacci M.

Total knee replacement: intraoperative and postoperative kinematic assessment. Acta Biomed. 2017 Jun 7;88(2S):32-37.
Bontempi M, Cardinale U, Bragonzoni L, Macchiarola L, Grassi A, Signorelli C, Marcheggiani Muccioli GM, Zaffagnini S.

Patellofemoral anatomy and biomechanics: current concepts. Joints. 2013 Oct 24;1(2):15-20.
Zaffagnini S, Dejour D, Grassi A, Bonanzinga T, Marcheggiani Muccioli GM, Colle F, Raggi F, Benzi A, Marcacci M.

What Is the Mid-term Failure Rate of Revision ACL Reconstruction? A Systematic Review. Clin Orthop Relat Res. 2017 Oct;475(10):2484-2499.
Grassi A, Kim C, Marcheggiani Muccioli GM, Zaffagnini S, Amendola A.

Magnetic resonance imaging after anterior cruciate ligament reconstruction: A practical guide. World J Orthop. 2016 Oct 18;7(10):638-649.
Grassi A, Bailey JR, Signorelli C, Carbone G, Tchonang Wakam A, Lucidi GA, Zaffagnini S.

An update on the grading of muscle injuries: a narrative review from clinical to comprehensive systems. Joints. 2016 Jun 13;4(1):39-46.
Grassi A, Quaglia A, Canata GL, Zaffagnini S.

Assessment of the pivot shift using inertial sensors. Curr Rev Musculoskelet Med. 2016 Jun;9(2):160-3.
Zaffagnini S, Signorelli C, Grassi A, Yue H, Raggi F, Urrizola F, Bonanzinga T, Marcacci M.

Anterior cruciate ligament reconstruction with a novel porcine xenograft: the initial Italian experience. Joints. 2015 Nov 3;3(2):85-90.
Zaffagnini S, Grassi A, Marcheggiani Muccioli GM, Roberti Di Sarsina T, Raggi F, Benzi A, Marcacci M.

Inertial sensors to quantify the pivot shift test in the treatment of anterior cruciate ligament injury. Joints. 2014 Aug 1;2(3):124-9.
Zaffagnini S, Lopomo N, Signorelli C, Marcheggiani Muccioli GM, Bonanzinga T, Grassi A, Raggi F, Visani A, Marcacci M.

The patellofemoral joint: from dysplasia to dislocation. EFORT Open Rev. 2017 May 11;2(5):204-214.
Zaffagnini S, Grassi A, Zocco G, Rosa MA, Signorelli C, Muccioli GMM.

Arthroscopic intra- and extra-articular anterior cruciate ligament reconstruction with gracilis and semitendinosus tendons: a review. Curr Rev Musculoskelet Med. 2011 Jun;4(2):73-7.
Marcacci M, Zaffagnini S, Marcheggiani Muccioli GM, Neri MP, Bondi A, Nitri M, Bonanzinga T, Grassi A.

Patient-Reported and Quantitative Outcomes of Anatomic Anterior Cruciate Ligament Reconstruction With Hamstring Tendon Autografts. Orthop J Sports Med. 2020 Jul 7;8(7):2325967120926159.
Diermeier T, Meredith SJ, Irrgang JJ, Zaffagnini S, Kuroda R, Hochino Y, Samuelsson K, Smith CN, Popchak A, Musahl V; PIVOT Study Group, Sheean A, Burnham JM, Lian J, Smith C, Popchak A, Herbst E, Pfeiffer T, Araujo P, Oostdyk A, Guenther D, Ohashi B, Irrgang JJ, Fu FH, Nagamune K, Kurosaka M, Kuroda R, Hochino Y, Grassi A, Muccioli GMM, Lopomo N, Signorelli C, Raggi F, Zaffagnini S, Horvath A, Svantesson E, Senorski EH, Sundemo D, Bjoernsson H, Ahlden M, Desai N, Samuelsson K, Karlsson J.

Return to sport after ACL reconstruction: how, when and why? A narrative review of current evidence. Joints. 2015 Jun 8;3(1):25-30.
Zaffagnini S, Grassi A, Serra M, Marcacci M.