Anatomy of the Distal Biceps Tendon- An In Vivo 3-T MRI Study

Author(s):  
Alexander Buckenham Boyle ◽  
James Uri Ke ◽  
Amanda Ragg ◽  
Simon B.M. MacLean
Author(s):  
Anirudh K. Gowd ◽  
Joseph N. Liu ◽  
Bhargavi Maheshwer ◽  
Grant H. Garcia ◽  
Edward C. Beck ◽  
...  

2021 ◽  
Vol 9 (3) ◽  
pp. 232596712199181
Author(s):  
Mehmet Kapicioglu ◽  
Emre Bilgin ◽  
Necip Guven ◽  
Anil Pulatkan ◽  
Kerem Bilsel

Background: The classic injury mechanism of a distal biceps brachii tendon rupture (DBBTR) is eccentric loading to the flexed elbow when the forearm is supinated. Purpose: To determine alternative mechanisms of a DBBTR in powerlifting sports, particularly in deadlift competitions, with the use of YouTube videos. Study Design: Descriptive epidemiology study. Methods: A search on YouTube was performed using the search terms “distal biceps tendon rupture” and “distal biceps tendon injury” combined with “competition,” “deadlift,” and “powerlifting.” The videos underwent an evaluation for accuracy by 3 surgeons according to predetermined criteria. Type of sports activity, participant sex, side of the injury, and arm positions at the time of the injury were recorded. Results: Among the videos reviewed, 35 injuries were found appropriate for an evaluation. All participants were male. The majority of the injuries (n = 25) were observed during the deadlift. Only in 1 deadlift injury were both forearms in supination. In the remaining deadlift injuries (n = 24), all elbows were in extension, with 1 forearm in supination and the other in pronation. Among the deadlift injuries in the mixed-grip position, all ruptures occurred in a supinated extremity: 25% (n = 6) of ruptures occurred on the right side, and 75% (n = 18) of ruptures occurred on the left side; this was a significant difference ( P = .014). Conclusion: We described an alternative mechanism for a DBBTR, namely, eccentric loading to an extended elbow when the forearm is supinated during the deadlift. As all the ruptures occurred in a supinated extremity, holding the bar with both forearms in pronation may prevent or decrease the risk of ruptures during the deadlift.


2019 ◽  
Vol 7 (2) ◽  
pp. 232596711982731 ◽  
Author(s):  
Graham D. Pallante ◽  
Shawn W. O’Driscoll

Background: The hook test is a sensitive and specific tool that has been previously described for diagnosing distal biceps tendon ruptures in an efficient, cost-effective manner. However, its application in postoperative evaluations after surgical repair of distal biceps tendon ruptures is not documented. Hypothesis/Purpose: We hypothesized that the hook test result returns to normal at some point postoperatively after distal biceps repair. This information could be used in decision making during follow-up examinations with both normal and abnormal findings. Study Design: Cohort study (diagnosis); Level of evidence, 3. Methods: We retrospectively reviewed records of distal biceps repair. Between July 1, 2003, and July 1, 2016, a total of 56 patients underwent distal biceps repair and also had clear documentation of the results of the hook test during the postoperative period. Hook test results consisted of “intact,” “abnormal,” or “absent.” The timing of the return to a normal hook test result was recorded. Results: Overall, 51 of 57 (89%) repairs were documented to have the hook test result return to “intact.” The test result returned to intact by a mean of 10 weeks after surgery (range, 2 weeks to 15 months). The biceps tendon was intact according to the hook test at the 4-month follow-up in 45 of the 51 patients (88%) in whom it ultimately returned. The hook test result was abnormal in 5 repairs in 5 patients with only a short-term follow-up, ranging from 2 to 7 weeks postoperatively. One patient with an abnormal hook test result at 2 weeks postoperatively underwent revision and was confirmed to have a partial tear of the biceps insertion. His hook test result returned to intact 3 months after revision repair. Conclusion: The hook test result returns to normal in patients who undergo distal biceps repair in the primary and revision settings with adequate follow-up. The vast majority of patients have a normal hook test result by 4 months postoperatively. An abnormal hook test result at 4 months postoperatively may indicate a failed repair and should prompt further investigation.


Author(s):  
Abdul D. Khan ◽  
Sri Penna ◽  
Qi Yin ◽  
Chris Sinopidis ◽  
Peter Brownson ◽  
...  

2014 ◽  
Vol 48 (4) ◽  
pp. 482
Author(s):  
T. Aherne ◽  
F.M. Shaikh ◽  
P. Naughton ◽  
H. Mullett ◽  
D. Moneley

2004 ◽  
Vol 29 (2) ◽  
pp. 178-182 ◽  
Author(s):  
L. BALABAUD ◽  
C. RUIZ ◽  
J. NONNENMACHER ◽  
P. SEYNAEVE ◽  
P. KEHR ◽  
...  

In a prospective study, eight consecutive patients with nine ruptures of the distal biceps tendon underwent repair through a single incision. All patients were satisfied with their clinical results and had full ranges of elbow and forearm motion. There were no radial nerve injuries and no radio-ulnar synostoses. Isokinetic testing, after correction for dominance, demonstrated a 6% strength deficit, but 7% higher endurance in the repaired extremity for the flexion-concentric test, and no strength deficit and 13% higher endurance for supination. The improved endurance is probably explained by initial reduced effort due to apprehension which minimized subsequent fatigue.


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