In:
Plastic & Reconstructive Surgery, Ovid Technologies (Wolters Kluwer Health)
Abstract:
Is ultrasound sensitivity, specificity, and accuracy in identifying intact repairs or flexor tendon gapping following zone II repair affected by the number of suture strands crossing the repair or gap, and/or imaging modality (static versus dynamic)? Methods: One hundred and forty-four fresh-frozen cadaveric digits (thumbs excluded) were randomized to either an intact repair (0-mm gap) or simulated “failed” repair (4 mm gap), as well as to either a 2 or 8 strand locked cruciate repair of a Zone 2 flexor digitorum profundus tendon laceration using 4-0 Fiberwire. Examinations were performed by a blinded musculoskeletal ultrasonographer in static and dynamic modes using an 18 MHz transducer. Gaps were remeasured after scanning, and the final gap width recorded. McNemar’s exact test was used to determine if there were differences between sensitivity, specificity, and accuracy affected by modality (static vs. dynamic), and Chi-square test was used to compare sensitivity, specificity and accuracy between number of strands (2 vs. 8) crossing the intact repair or repair gap ( 〉 /=4mm). Results: Sensitivity, specificity and accuracy improved with: 1. increased number of suture strands crossing repair/gap (8 vs 2), irrespective of modality (static vs. dynamic), and 2. dynamic compared to static scanning modes, irrespective of number of suture strands crossing repair or gap site. Conclusion: The most sensitive and accurate means of assessing flexor tendon repair integrity and gapping was seen using dynamic scanning mode. Increased number of suture strands does not negatively affect sensitivity, specificity, nor accuracy, regardless of scanning mode (dynamic vs. static).
Type of Medium:
Online Resource
ISSN:
0032-1052
DOI:
10.1097/PRS.0000000000010788
Language:
English
Publisher:
Ovid Technologies (Wolters Kluwer Health)
Publication Date:
2023
detail.hit.zdb_id:
208012-6
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