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Gregory A. Hoy, FRACS, FAOrthA, FACSP, FASMF AUSTRALIA
Gregory A. Hoy, FRACS, FAOrthA, FACSP, FASMF, AUSTRALIA David Connell, Adjunct Assoc Prof, AUSTRALIA
Melbourne Orthopaedic Group, Olympic Park Imaging, Melbourne, Victoria, AUSTRALIA
2025 Congress ePoster Presentation 2025 Congress Not yet rated
Anatomic Location
Shoulder Rotator Cuff
Diagnosis / Condition
Trauma
Treatment / Technique
Sutures / Knots / Anchors Repair / Reconstruction
Diagnosis Method
MRI
Sports Medicine
Research
Summary: A new technique of fat quantification can specifically measure fat content of rotator cuff muscles and determine cuff chronicity and reparability
Background. The Goutallier method of measuring fatty infiltration is based on CT determination of broad levels of fat vs muscle, including “amount of fat = amount of muscle”. Recent articles discuss using MRI to determine the same levels as the Goutallier classification. With modern day computing abilities we should be able to assess muscle changes on a more accurate basis than the Goutallier classificationMethods. MRI scans were taken of 148 patients of a single surgeon practice over a period of 27 months. These were then measured for rotator cuff fat quantification using a specific mDixon sequence developed on the Phillips MR 3T scanner (Olympic Park Imaging, Capitol). Unpublished reliability data shows excellent inter reliability of SSP, ISP, and Teres Minor assessment and good inter reliability for Subscapularis assessment. Rotator cuff patients were then assessed for repairability vs fatty percentage on “false colour” assessment of the fat (see diagrams). Results. Assessments of intact rotator cuffs all demonstrated fatty percentages of less than 10% in each of the muscles. Acute rotator cuff tears demonstrated a range between 10% and 20% of fatty percentage in rotator cuff muscle. In the few irreparable cuff tears scanned in this period, percentages of >20% were noted in the affected muscles.
In the early assessments using this promising modality, we were able to flag likely irreparable rotator cuff tendon tears based on specific fatty percentage assesments of the cuff muscle, being much more accurate than the Goutallier classification.
ePoster Presentation
Ashish Gupta, MBBS, MSc, FRACS, FAORTHOA, AUSTRALIA Freek Hollman, MD, PhD, NETHERLANDS Ruth Delaney, FRCS , IRELAND Kenneth Cutbush, MBBS, FRACS, FAOrthA, AUSTRALIA Quasr Collaborative, (QUASR), AUSTRALIA
Orhan Mete Karademir, MD, TURKEY Ulaş Can Kolaç, MD, TURKEY Gökhan Ayik, PhD, TURKEY Mehmet Kaymakoglu, M.D, TURKEY Erdi Ozdemir, MD, UNITED STATES Filippo Familiari, MD, Prof., ITALY Gazi Huri, Prof. MD, QATAR
Supanut Klaiudom, MD, THAILAND Thun Itthipanichpong, MD, THAILAND Thanathep Tanpowpong, MD, THAILAND Danaithep Limskul, MD, THAILAND
Chih-Kai Hong, MD, TAIWAN Wei-Kuo Hsu, MD, TAIWAN Shu-Cheng Liu, MD, TAIWAN Chi-Hsiu Wang , B.S., MSc, TAIWAN Hao-Chun Chuang, MD, TAIWAN Fachuan Kuan, MD, PhD, TAIWAN Kai-Lan Hsu, MD, TAIWAN Wei-Ren Su, MD, MSc, TAIWAN
Letizia Mancini, MD, ITALY Arianna Carnevale, PhD, ITALY Matilde Mancuso, ITALY Antonio Cerasa, MD, PhD, ITALY Giovanni Pioggia, PhD, ITALY Ara Nazarian, PhD, UNITED STATES Vincenzo Candela, MD, PhD, ITALY Alessandra Berton, MD, ITALY Giuseppe Salvatore, MD, PhD, ITALY Emiliano Schena, Eng, ITALY Rocco Papalia, MD, PhD, Prof., ITALY Umile Giuseppe Longo, MD, MSc, PhD, Prof., ITALY
Jumpei Inoue, MD, UNITED STATES Luke Mattar, BS, UNITED STATES Efstathios Konstantinou, MD, MSc, GREECE Adam J. Popchak, DPT, PhD, UNITED STATES Volker Musahl, MD, Prof., UNITED STATES James J. Irrgang, PT, PhD, FAPTA, UNITED STATES Richard E Debski, PhD, UNITED STATES
Tarek M. T. Ghandour, MD, EGYPT
Andrea Pratobevera, MD, ITALY Andrea Bergomi, MD, ITALY Emanuele Maggini, MD, ITALY Giulio Vittone, MD, ITALY Maristella Francesca Saccomanno, MD, PhD, ITALY Giuseppe Milano, Prof., ITALY
Jaimeen Pravinkumar Jesalpura, MD, INDIA
Catherine Hand, BS, UNITED STATES Camden Bohn, BA, UNITED STATES Shadia Tannir, BA, UNITED STATES Yining Lu, MD, UNITED STATES Erick Marigi, MD, UNITED STATES Josh Chang, BS, UNITED STATES Daanish Khazi-Syed, BS, UNITED STATES Brian Forsythe, MD, UNITED STATES
Tomohiko Sano, MD, PhD, JAPAN Aki Fukuda, MD, JAPAN Masahiro Hasegawa, MD, PhD, Prof., JAPAN
Michael Sirignano, MD, UNITED STATES John Nyland, EdD, DPT, UNITED STATES Ryan Jeffrey Krupp, MD, UNITED STATES
Kristine R. Italia, MD, FPOA, PHILIPPINES Christopher Child, MD, AUSTRALIA Jashint Maharaj, MBBS, FRSPH, AUSTRALIA Marco Branni, PhD, AUSTRALIA Tristan Shuker, BSc, AUSTRALIA Kenneth Cutbush, MBBS, FRACS, FAOrthA, AUSTRALIA Ashish Gupta, MBBS, MSc, FRACS, FAORTHOA, AUSTRALIA
Hsuan‑Hsiao Ma, MD, TAIWAN Kun-Hui Chen, MD, TAIWAN En-Rung Chiang, MD, PhD, TAIWAN
Rajagopalakrishnan Ramakanth, D.ortho, DNB(ortho), D.SICOT, INDIA Silvampatti Ramasamy Sundararajan, MS(Orth), INDIA
Arianna Carnevale, PhD, ITALY Martina Sassi, Eng., ITALY Matilde Mancuso, ITALY Emiliano Schena, Eng, ITALY Leandro Pecchia, ITALY Umile Giuseppe Longo, MD, MSc, PhD, Prof., ITALY
Vinod Kumar, MBBS, MS, DNB, MNAMS, INDIA Rohan Goel, MBBS, MS (Ortho), INDIA
Abdurrahman Aydın, MD, TURKEY
Abdullah Alabbasi, MD, GERMANY Naman Wahal, MBBS, MS Orthopaedics, INDIA Frank Martetschlaeger, GERMANY Mark Tauber, Prof. , GERMANY
Katsutoshi Miyatake, MD, PhD, JAPAN Tomoya Takasago, MD, PhD, JAPAN Daisuke Nakai, MD, PhD, JAPAN Akihiro Nagamachi, MD, PhD, JAPAN
Paul Byron Roache, MD, UNITED STATES
Cristina Delgado, MD, PhD, SPAIN Gia Rodriquez Vaquero, MD, MSc, SPAIN Carmen Ortega Tapia, SPAIN Jordi Ardèvol , SPAIN Vanesa Lopez-Fernandez, MD, PhD, SPAIN Emilio Calvo, MD, PhD, MBA, SPAIN
Gia Rodriquez Vaquero, MD, MSc, SPAIN Vanesa López Fernández, PhD, SPAIN Pablo Jiménez Baena, MD, SPAIN Fernando Cabanes Villajos, MD, SPAIN Emilio Calvo, MD, PhD, MBA, SPAIN Cristina Delgado, MD, PhD, SPAIN
Aiping Lu, MD, UNITED STATES Ping Guo, PhD, UNITED STATES Matthieu Huard, BS, UNITED STATES Ashley Groesbeck, BS, UNITED STATES Johnny Huard, PhD, UNITED STATES
Yoshimasa Saigo, MD, JAPAN Daichi Morikawa, MD, PhD, JAPAN Hirohisa Uehara, MD, JAPAN Yoshiaki Itoigawa, MD, PhD, JAPAN Muneaki Ishijima, MD, PhD, JAPAN
Nadhaporn Saengpetch, MD, THAILAND
Reza Ojaghi, MD MSc FRCSC, UNITED STATES Sarah Remedios, MSc, PhD(c), CANADA Ivan Wong, MD, FRCSC, MACM, Dip. Sports Med, CANADA
Akihiko Hasegawa, MD, PhD, JAPAN Akihiro Uchida, MD, PhD, JAPAN Yusuke Noguchi, MD, JAPAN Hiroyuki Shimizu, MD, JAPAN Shuhei Otsuki, MD, JAPAN Teruhisa Mihata, MD, PhD, JAPAN
Daichi Morikawa, MD, PhD, JAPAN Yoshimasa Saigo, MD, JAPAN Hirohisa Uehara, MD, JAPAN Yasutaka Yoshimura, MD, JAPAN Yoshiaki Itoigawa, MD, PhD, JAPAN Hironori Tsurukami, MD, JAPAN Fumitoshi Hatae, MD, JAPAN Muneaki Ishijima, MD, PhD, JAPAN
Prince Shanavas Khan, D' ORTHO, M.S. ORTHO, INDIA Ayyappan Viajayachandran Nair, MBBS, D Ortho, DNB Ortho, MNAMS, INDIA Kiran Veerendra Kumar , MS (Orthopaedics), MRCS (Edinburgh), INDIA Aravind Rajan, MS ORTHO, DNB ORTHO , INDIA Sreejith Thampy J, MS ortho, INDIA Bharath Bharadwaj M S, M S Ortho, INDIA
Yasunari Fujii, MD, JAPAN Hironori Kakoi, MD, PhD, JAPAN Hideyasu Kaieda, MD, JAPAN
Farid Amirouche, PhD, UNITED STATES Majd Mzeihem, MD, UNITED STATES Bassem T. Elhassan, MD, UNITED STATES Jason L. Koh, MD, MBA, UNITED STATES
Jonas Fernandez, MD, Ms Orth, MALAYSIA Yong Girl Rhee, MD, KOREA, REPUBLIC OF
Amin Karimi, MD, UNITED STATES Ryan T. Lin, MS, UNITED STATES Soheil Sabzevari, MD, UNITED STATES Sophia Mcmahon, BA, UNITED STATES Fritz Steuer, BS, UNITED STATES Michael Andrew Fox, MD, UNITED STATES Volker Musahl, MD, Prof., UNITED STATES Bryson P. Lesniak, MD, UNITED STATES Albert Lin, MD, UNITED STATES
Chukwudi Onyeukwu, MD, MS, UNITED STATES Ryan T. Lin, MS, UNITED STATES Ryan Kelly, BS, UNITED STATES Sydney Scanlon, MS, UNITED STATES Joseph P Mullen, BS, UNITED STATES Kelly A Murphy, BS, UNITED STATES Stephen E. Marcaccio, MD, UNITED STATES Albert Lin, MD, UNITED STATES