Traumatic Tear of the Latissimus Dorsi Myotendinous Junction: Case Report of a CrossFit-Related Injury.
A case of a latissimus dorsi myotendinous junction strain in an avid CrossFit athlete is presented. The patient developed acute onset right axillary burning and swelling and subsequent palpable pop with weakness while performing a "muscle up." Magnetic resonance imaging examination demonstrated a high-grade tear of the right latissimus dorsi myotendinous junction approximately 9 cm proximal to its intact humeral insertion. There were no other injuries to the adjacent shoulder girdle structures. Isolated strain of the latissimus dorsi myotendinous junction is a very rare injury with a scarcity of information available regarding its imaging appearance and preferred treatment. This patient was treated conservatively and was able to resume active CrossFit training within 3 months. At 6 months postinjury, he had only a mild residual functional deficit compared with his preinjury level.
Mallinckrodt Institute of Radiology, Washington University School of Medicine and Barnes-Jewish Hospital, St. Louis, Missouri friedmanm@mir.wustl.edu.
Michael V
MV
Friedman
Mallinckrodt Institute of Radiology, Washington University School of Medicine and Barnes-Jewish Hospital, St. Louis, Missouri.
J Derek
JD
Stensby
Mallinckrodt Institute of Radiology, Washington University School of Medicine and Barnes-Jewish Hospital, St. Louis, Missouri.
Travis J
TJ
Hillen
Mallinckrodt Institute of Radiology, Washington University School of Medicine and Barnes-Jewish Hospital, St. Louis, Missouri.
Jennifer L
JL
Demertzis
Department of Orthopedic Surgery, Washington University School of Medicine and Barnes-Jewish Hospital, St. Louis, Missouri.
Jay D
JD
Keener
D000328:Adult; D001265:Athletic Injuries / Q000175:diagnosis* / Q000628:therapy*; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D026741:Physical Therapy Modalities; D064171:Superficial Back Muscles / Q000293:injuries* / Q000473:pathology; D013708:Tendon Injuries / Q000175:diagnosis / Q000628:therapy
dorsi; latissimus; magnetic resonance imaging; muscle; tear; tendon