Latest Anatomy research

Top 5 this week

Week of 1 November 2026

1. 1

   Remnant preservation and stump suturing in anterior cruciate ligament reconstruction reduce tibial tunnel widening without compromising tunnel placement: A computed tomography-based randomised controlled trial

   Journal of experimental orthopaedics · Q1 journal · RCT · Evidence level 1 (High) · 28 October 2026

   In a randomized trial of 179 patients, remnant preservation with tibial stump suturing reduced tunnel widening over one year: 11% had widening greater than 20%, compared with 25% after stump resection. Femoral widening and tunnel placement were similar between groups, but whether the smaller tibial changes improve graft incorporation or revision outcomes remains unknown.

2. 2

   Peripheral nerve block injection pressure monitoring: A systematic review

   Journal of clinical anesthesia · Q1 journal · SR of cohorts · Evidence level 2 (Moderate) · 29 October 2026

   Across 28 animal and human cadaver studies, intraneural injections generally produced higher pressures than perineural injections, but readings overlapped across needle locations. Low pressure did not rule out intraneural placement, and high pressure also occurred with needle-nerve contact or fascial injection; no cutoff is clinically validated, and whether monitoring prevents nerve injury remains unknown.

3. 3

   Vascular Access Complexity and Thrombectomy Efficiency in Proximal MCA M1 Occlusion: Evaluation of the Bovine Aortic Arch-Dolichoarteriopathy Score

   Medicina (Kaunas, Lithuania) · Q2 journal · Prospective cohort · Evidence level 2 (Moderate) · 7 October 2026

   In this single-center review of 220 patients with a proximal middle cerebral artery blockage, those with more complex access anatomy had a median puncture-to-recanalization time of 67 minutes, versus 43 minutes, and first-pass success was 37.7% versus 51.7%. Final reopening rates and adjusted 90-day functional outcomes did not differ significantly; the score needs prospective validation before guiding procedural planning.

4. 4

   Medial-lateral posterior tibial slope asymmetry is associated with the presence of medial meniscus posterior root tear

   Knee surgery & related research · Q1 journal · Cohort · Evidence level 3 (Low) · 29 October 2026

   MRI measures tibial slope asymmetry linked to meniscal root tears

5. 5

   Computed tomography-based embryologic compartment classification provides prognostic stratification in pancreatic head ductal adenocarcinoma

   Pancreatology : official journal of the International Association of Pancreatology (IAP) ... [et al.] · Q1 journal · Retrospective cohort · Evidence level 3 (Low) · 28 October 2026

   In a retrospective study of 173 patients with resected pancreatic head cancer, CT-classified dorsal-confined tumors had a median overall survival of 61.5 months, compared with 25.2 months for other tumor locations. The association persisted after adjustment and in anatomically resectable cases, but the single-center findings need validation before this classification guides care.

Paper of the day, last two weeks

• Peroneus Tertius as a Target in Targeted Muscle Reinnervation for the Management of Neuropathic Pain in the Leg: A Cadaveric Study

  Microsurgery · Q1 journal · Unclassified · Evidence level 5 (Expert Opinion) · 1 December 2026

  Cadaveric nerve-course landmarks guide peroneus tertius reinnervation

• Which motor branch to use? Targeted muscle reinnervation for digital neuromas: An anatomical study

  Journal of plastic, reconstructive & aesthetic surgery : JPRAS · Q1 journal · Unclassified · Evidence level 5 (Expert Opinion) · 23 October 2026

  In 26 dissected arms, researchers found consistent, expendable motor branches that could serve as targets for targeted muscle reinnervation: thenar branches for digits 1 to 3, lumbrical branches for digits 2 and 3, and hypothenar branches for digits 4 and 5. This anatomical study maps possible options, but whether they reduce pain or improve hand function remains untested.

• In Vivo Detection of Ampullary T2 Hypointensity as a Marker of Vestibular Atelectasis

  Otology & neurotology : official publication of the American Otological Society, American Neurotology Society [and] European Academy of Otology and Neurotology · Q1 journal · Retrospective cohort · Evidence level 3 (Low) · 2 November 2026

  In this retrospective cohort of 47 people with bilateral vestibular areflexia, 25 had a distinct T2-dark signal in the ampullae or utricle, and all 25 also had radiological vestibular atelectasis. The finding could raise suspicion when delayed postcontrast imaging is unavailable, but the proposed link to tissue deposits remains unconfirmed and the sign is not a replacement for that imaging.

• Aesthetic Reconstruction of the Interlabial Sulcus: from Anatomical Rediscovery to Surgical Approach

  Plastic and reconstructive surgery · Q1 journal · Cohort · Evidence level 3 (Low) · 29 October 2026

  In a retrospective study of 274 patients with an absent interlabial sulcus, satisfaction was higher among the 109 who had reconstruction than among those who had conventional surgery. The technique added about 20 minutes to surgery without a detected increase in complications, but the nonrandomized design leaves its comparative benefit uncertain.

• Regional Histological Anatomy of the Supraperiosteal Tissues of the Oral Cavity: Implications for Periodontal Flap Surgery and Periosteal Releasing Incisions

  Clinical anatomy (New York, N.Y.) · Q1 journal · Unclassified · Evidence level 5 (Expert Opinion) · 29 October 2026

  Regional oral tissue histology informs safer periodontal incisions

• Multi-positional ultrasonographic assessment of clinically suspected pediatric nutcracker syndrome

  Ultrasonography (Seoul, Korea) · Q1 journal · Cohort · Evidence level 3 (Low) · 12 October 2026

  In 67 children evaluated for suspected nutcracker syndrome, an abnormal left renal vein diameter ratio was seen in 63% when supine, compared with 31% lying on the left side and 24% on the right. The retrospective imaging study shows that posture changes measured compression, but does not establish whether lateral positioning improves symptoms or outcomes.

• Ultrasonographic assessment of pelvic parameters associated with mode of delivery in Turkish pregnant women

  BMC pregnancy and childbirth · Q1 journal · Prospective cohort · Evidence level 2 (Moderate) · 19 October 2026

  In 267 term, first-time mothers, those who had cesareans for cephalopelvic disproportion had a subpubic angle about 9 degrees narrower and an obstetric conjugate about 9 mm shorter than women who delivered vaginally; 18% had cesareans. Ultrasound measurements distinguished delivery groups, but the study shows association, not that measurements can reliably determine delivery mode or replace obstetric assessment.

• The Curious History of the External Petrosal Nerve: Did Citations Replace Observations?

  Clinical anatomy (New York, N.Y.) · Q1 journal · Review / opinion · Evidence level 5 (Expert Opinion) · 27 October 2026

  Evidence-based reassessment of a disputed cranial nerve structure

• Tracing-based drawing method enhances anatomy learning outcomes and proportional awareness: a randomized cross-over study

  BMC medical education · Q1 journal · RCT · Evidence level 1 (High) · 27 July 2026

  In a randomized crossover study of 60 first-year medical students, template-guided tracing scored nearly 12 points higher than drawing from memory, with the advantage seen immediately and one week later. The gap narrowed over time, and students rated tracing more favorably; whether it improves long-term anatomy learning or transfers to other tasks remains unknown.

• Morphometric Analysis of Thigh Perforator Arteries Using CT Angiography: A Bilateral Comparative Study

  Journal of clinical medicine · Q1 journal · Unclassified · Evidence level 5 (Expert Opinion) · 20 October 2026

  CTA quantifies bilateral thigh perforator anatomy and variability

• Orbital Fractures at a Level 1 Trauma Center: A Retrospective Epidemiological Analysis of 1489 Consecutive Fracture Records

  Journal of clinical medicine · Q1 journal · Retrospective cohort · Evidence level 3 (Low) · 9 October 2026

  In this single-center review, orbital floor fractures were present in 87.7% of 1,489 cases; 55.1% had tissue herniation and 17.6% had double vision. Most patients were young men, and nearly three quarters underwent repair, typically within two days. The study describes who presented and what injuries they had, but does not establish which cases need surgery or when.

• Intraoperative Transverse Acetabular Ligament-Guided Radiographic Anteversion: Concordance With Hip-Spine Targets and Combined Anteversion

  Arthroplasty today · Q1 journal · Unclassified · Evidence level 5 (Expert Opinion) · 15 October 2026

  Among 70 hips in the hip-spine 1A group, TAL-guided radiographic anteversion fell within the 20 to 25 degree target in 15 (21%); 66% were within 5 degrees of that range. Across the study, 56% met the combined anteversion target. The TAL may be useful as an anatomic landmark, but its value for guiding cup position on its own remains uncertain.

• Sylviocentral ratio: a novel magnetic resonance imaging marker for differentiating probable idiopathic normal pressure hydrocephalus from diffuse cerebral atrophy

  Neuroradiology · Q1 journal · Prospective cohort · Evidence level 2 (Moderate) · 15 October 2026

  In 72 patients, the sylviocentral ratio separated probable normal pressure hydrocephalus from diffuse cerebral atrophy with 92% sensitivity and 94% specificity at a defined cutoff. Its performance matched the callosal angle and exceeded the Evans index, with strong agreement between readers; larger external studies are needed before routine use.

• Indocyanine green fluorescence cholangiography versus intraoperative cholangiography for laparoscopic cholecystectomy: an updated systematic review and meta-analysis of randomized controlled trials

  Updates in surgery · Q1 journal · SR/MA of RCTs · Evidence level 1 (High) · 23 October 2026

  In three randomized trials with 494 patients, indocyanine green fluorescence and X-ray cholangiography visualized biliary anatomy at similar rates. Fluorescence imaging had fewer failed examinations and took about 4 minutes less, but did not shorten total operating time; no bile duct injuries occurred in either group, so larger trials are needed to test whether the technical advantages prevent injury.

Evidence summaries in Anatomy

• Brachial Plexus