ArticleJournal of orthopaedic surgery and research2026
Feasibility of shoulder joint visualization using the 0° Arthrex Nanoscope: a cadaveric study on twenty specimens.
Article in Journal of orthopaedic surgery and research, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
purposeNanoscopic technology is increasingly employed in minimally invasive orthopedic procedures, offering enhanced access to tight compartments with reduced soft-tissue disruption. This study assessed the feasibility of visualizing key anatomical structures of the shoulder joint using a 0° nanoscope in cadaveric specimens.
methodsTwenty fresh-frozen human cadaveric shoulders (10 left, 10 right) were examined by two orthopedic surgeons with different experience levels using a 1.9 mm 0° nanoscope. Standard posterior, anterior, and lateral portals were used to assess glenohumeral and subacromial compartments. Predefined landmarks were graded on a 5-point Likert scale. The primary outcome was feasibility of identifying each structure; secondary outcomes included mean visibility scores and inter-observer variability.
resultsAll predefined landmarks were identified in all 20 specimens. The senior surgeon reported an overall mean visibility score of 4.45 (SD ± 0.18), and the resident 4.18 (SD ± 0.21). Highest scores were observed for the long head of the biceps tendon and superior labrum. Lower scores occurred in the subacromial space, particularly in bursal-side rotator cuff assessment, reflecting challenges inherent to the 0° field of view. Inter-observer agreement was good (mean differences ≤ 0.3).
conclusionNanoscopic visualization of the shoulder using a 0° device is feasible and yields high visibility scores for most landmarks. Surgeon experience may influence interpretation in anatomically complex regions such as the subacromial space. These findings support a potential diagnostic and adjunctive therapeutic role for shoulder nanoscopy. LEVEL OF EVIDENCE VI: Descriptive laboratory study.
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