LCF in 2026 (June)
(Quotes from articles and books published in June 2026 mentioning the ligamentum capitis femoris)
Turner, A. H.,
Kernan, C. E., Laing, A., Pritchard, A. C., Stocker, M. R., Irmis, R. B., ...
& Nesbitt, S. J. (2026). A new shuvosaurid (Archosauria, Poposauroidea)
from the Late Triassic (Norian) Hayden Quarry of New Mexico, USA. Journal of
Vertebrate Paleontology, e2618182.
[i] tandfonline.com
Wang, F., Mu, Y., Sun, J., & Chi, H. Traumatic necrosis of femoral head: a case report. Journal of Clinical Medicine Research. 2026;7(1)14-18. [ii] en.front-sci.com
Sha, S. Y., Lang, X. X., Liu, Y., Li, C. B., & Yin, Q. F. L‐Capsulotomy and Anatomic Repair of Zona Orbicularis: Hip Arthroscopy Capsular Management for Femoroacetabular Impingement Syndrome. Arthroscopy Techniques, e70149. [iii] arthroscopyjournals.onlinelibrary.wiley.com
Garlapaty, A. R., Lehenbauer, C., Bezold, W., Crist, B. D., Cook, J. L., & DeFroda, S. F. (2026). Biomechanical Comparison of Native Acetabular Labrum, Fresh-Frozen Meniscus, and Fresh-Frozen Anterior Tibialis Tendon for Labral Reconstruction. Orthopaedic Journal of Sports Medicine, 14(5), 23259671261434226. [iv] journals.sagepub.com
Lira, L. G., Selhorst, G., de Lima, D. D., & de Macedo, A. C. B. (2026). Prevalence, Incidence, and Risk Factors of Musculoskeletal Injuries in Classical Ballet Dancers: A Systematic Review. Journal of Dance Medicine & Science, 1089313X261446513. [v] journals.sagepub.com
Kisel, J., Amen, J., Lewis, T., Karanikas, D., Fossett, E., Kafchitsas, K., & Kokkinakis, M. (2026). Non-reconstructive/salvage hip surgery in cerebral palsy: a systematic review. EFORT Open Reviews, 11(6), 570-578. [vi] eor.bioscientifica.com
Yamashita, A., Takeda, Y., Nakai, T., Matsumoto, S., Kawaguchi, T., Onishi, S., ... & Fukunishi, S. (2026). A case of a pathological fracture in the femoral neck due to chondroblastoma: 10-year follow-up without recurrence after curettage and bone grafting. Journal of Surgical Case Reports, 2026(6), rjag421. [vii] academic.oup.com
Feng, T., Zhang, C., He, D., Tang, H., Zhang, X., Zhang, Y., ... & Jin, Z. (2026). Elevated-rim liner positioning in total hip arthroplasty: a compromise between dislocation biomechanics and range of motion. Medical & Biological Engineering & Computing, 1-20. [viii] link.springer.com
Dislokasyonu, K. K. C. C. K. (2026). Surgical Hip Dislocation Approach for Hip Preservation Surgery. Turk J Hip Surg, 6(1), 8-20. [ix] pdf.journalagent.com
Aydemir, S., Celtik, M., Sabir, M. A., Zeybek, F. G., Şenkul, E., Gursan, O., & Hapa, O. (2026). The relationship between the deep branch of the medial femoral circumflex artery and the short external rotators and anatomical safety margins: a cadaver study. Turk J Hip Surg, 6(1), 1-7. [x] pdf.journalagent.com
Abdelfattah, I. S., Elmalt, A. E., Elbromboly, Y., & Hamada, I. (2025). Single Triple Attack for Management of Neglected Developmental Hip dysplasia in Children Between 5 and 9 Years; Short Term Outcome. The Egyptian Orthopaedic Journal. [xi] eoj.journals.ekb.eg
Foldager, F. N., David, J., Tønning, L. U., Mygind‐Klavsen, B., Gatzka, C., Zimmerman, B., & Mechlenburg, I. (2026). Improvements in Patient‐Reported Outcomes and Few Reported Major Complications Following Hip Arthroscopy in Patients With Femoroacetabular Impingement Syndrome: A Systematic Review. Arthroscopy, Sports Medicine, and Rehabilitation, e70036. [xii] arthroscopyjournals.onlinelibrary.wiley.com
Tseng, Z. J. (2026). Functional morphology of the first known skeleton of Leptarctus (Mustelidae, Carnivora) clarifies the palaeoecology of a distinctive predator lineage. Swiss Journal of Palaeontology, 145, 703-721. [xiii] sjp.pensoft.net
Meistro, F., Imposimato, I., Rinnovati, R., Lanci, A., Spadari, A., & Mariella, J. (2026). Unusual Medial Femoral Condyle Lesion in a Neonatal Quarter Horse Foal with MYH1-Associated Myopathy. Research Square. June 22nd, 2026. [xiv] assets-eu.researchsquare.com
Elnemr, M., Elzeiny, A., Alruwaili, S. H., AlMaeen, B. N., Alrowaili, M. G., Gawish, H., ... & Hamed, H. (2026). Medial open reduction for developmental dysplasia of the hip: A management algorithm. Journal of Radiation Research and Applied Sciences, 19(3), 102544. [xv] sciencedirect.com
[i] Bipedal shuvosaurid archosaurs were present for much of the Late Triassic Period.
Femur—The femur of L. expectatus is represented by a partial left femur that preserves
the proximal head and most of the shaft, but the distal end is missing
FIGURE 9. Left femur of Labrujasuchus expectatus. A, lateral view; B,
anterior view; C, medial view; D, posterior view; E, proximal view.
Abbreviations: alt, anterolateral tuber; amt, anteromedial tuber; at, anterior
trochanter; cf, caudofemoralis depression; faa, facies articularis
antitrochantericus; g, groove; pcf.h, proximal condylar fold homologue; pmt,
posteromedial tuber; rd, ridge. Single arrow notes the absence of a ventral
emargination. Double arrow notes location of distinct femoral shaft bulge.
[ii] Clinical
data show that the fracture line of femoral neck fracture is easy to involve
the branches of the main blood supply artery of femoral head-medial femoral
circumflex artery (such as femoral head ligament artery and metaphyseal
artery).
[iii] Magnetic resonance imaging is used to assess labral and ligamentum teres pathologies and to characterize the anterior joint capsule.
After the capsulotomy, gradual traction is applied to achieve a joint distraction
of approximately 10 mm. Diagnostic arthroscopy of the central compartment is
then initiated to evaluate and treat the chondrolabral lesions, ligamentum
teres tears, and pathologies of the acetabulum (Figure 2A).
[iv] Autograft and allograft options exist
for acetabular labral reconstruction: for autografts, ligamentum teres
capitalis, iliotibial band, gracilis, quadriceps tendon, capsular, and indirect
head of the rectus femoris; for allografts, semitendinosus, peroneus brevis
tendon, tensor fascia lata, posterior tibialis, and anterior tibialis.
[v] Classical ballet requires control,
repetition and precise of movements, which increases the risk of
musculoskeletal injuries when movements are executed incorrectly or
under excessive load.
[teres in professional ballet dancers] ligamentum rupture59,
59 Mayes S, Ferris AR, Smith P, Garnham A, Cook J. A traumatic tears of
the ligamentum teres are more frequent in professional ballet dancers than a
sporting population. Skeletal Radiol. 2016;45(7):959-967.
[vi] Valgus osteotomy
(VO): this technique was originally described by McHale who conducted the
osteotomy as a lateral closing wedge at level of lesser trochanter with
resection of femoral head at the neck level. Iliopsoas tendon was detached from
the lesser trochanter and sutured to ligamentum teres (9).
9 McHale KA , Bagg
M & Nason SS . Treatment of the chronically dislocated hip in adolescents
with cerebral palsy with femoral head resection and subtrochanteric valgus
osteotomy. J Pediatr Orthop 1990 10 504–509.
[vii] The trapdoor
procedure involves surgical dislocation, creating a bone window from the
cartilage side, and then performing curettage of the tumor. Numerous studies
have reported favorable outcomes [6, 7]. Furthermore, improved trapdoor
procedures have been reported, such as the approach from the insertion of the
ligamentum teres [8, 9] and the procedure without surgical dislocation [12].
[viii] (2) the
IFROM requirements for each daily activity were considered equally important
for the patient’s quality of life; and (3) the contributions of the ligamentum
teres and labrum to resisting the femoral head dislocation…
[ix] The hip can
now be dislocated by releasing the ligamentum teres with scissors while
bringing the leg in flexion and external rotation over the side of the table in
a sterile bag. The remaining portion of the ligamentum teres may be utilized
for labral reconstruction in selected cases, when indicated. Elevation of the
anteroinferior flap allows visualization of the labrum (Figure 6).
[x] Blood supply
to the femoral head is provided by the retinacular, foveal, and intraosseous
systems; however, in adulthood, the dominant arterial source for the
weight-bearing region is the superior and inferior retinacular arteries arising
from the deep branch of the MFCA1–5. The foveal branch within the ligamentum
teres supplies only the perifoveal area, while the contribution of the lateral
femoral circumflex artery and metaphyseal branches is limited in the adult hip
3,5–7.
[xi] To enhance exposure and facilitate reduction, the ligamentum teres was excised, the transverse acetabular ligament was divided, and the pulvinar was cleared from the acetabular floor.
The cornerstone of the triple procedure is open surgical reduction,
which is considered the most reliable method for managing DDH in this age
group. Reduction of the dislocated hip in older children is inherently more
complex due to multiple obstructive and adaptive changes, including:
• Hypertrophied ligamentum teres.
• Transverse acetabular ligament.
• Pulvinar tissue.
• Inverted limbus.
• Capsular contracture.
• Increased femoral anteversion.
• Soft tissue tightness.
[xii] Hip
arthroscopy is the most commonly used surgical intervention for FAIS. It is
performed using traction and fluid infusion to access the joint. It includes,
but is not limited to, femoroplasty, acetabuloplasty, labral repair or
reconstruction, cartilage restoration techniques, and interventions targeting
the ligamentum teres. Capsular repair or plication is often added to restore
joint stability.7
[xiii] Leptarctine
mustelids are Neogene carnivorans with fossil records in Asia and North
America.
The depression for the ligamentum teres on the femoral head is positioned more ventrally and caudally than the extant carnivorans compared. The distal margin of the trochanteric fossa is preserved and shows a relatively open and gradual transition into the femur shaft, similar to Meles, Taxidea and Procyon and not as deep or well-defined as in Vulpes.
[xiv] Avulsion
injuries at ligamentous attachment sites are tough to result from a failure of
the osteoligamentous junction in response to tensile overload, where the
fibrocartilaginous enthesis detaches with a fragment of cortical bone [31].
These injuries have been reported in several equine joints, illustrating the
shared biomechanical principle of traction-induced enthesial failure [27]. Documented
examples include avulsion of the long lateral collateral ligament of the tarsus
at the calcaneal attachment [32], avulsion of the plantar aspect of the
calcaneus with proximal intertarsal Page 10/24subluxation [33], avulsion of the
medial plantar eminence of the first phalanx secondary to collateralligament
detachment [34], and avulsion of the round ligament of the femoral head [35].
35. O’Brien T. What Is Your Diagnosis? Avulsion Fracture of the Insertion of the Round Ligament of the Head of the Femur. J Am Vet Med Assoc. 2012;240:1590–1560.
[xv] A primary advantage of utilizing the medial approach is the minimization of surgical trauma, evidenced by smaller incisions, shorter operative durations, and diminished soft tissue dissection, which curtail blood loss during surgery. Additionally, surgeons benefit from direct visualization of key anatomical obstacles to reduction specifically the inferior joint capsule, the hypertrophied transverse acetabular ligament, and the elongated, thickened ligamentum teres.
Author:
Arkhipov S.V. – candidate of medical sciences, surgeon, traumatologist-orthopedist.
Keywords
ligamentum capitis femoris, ligamentum teres, ligament of head of femur, history .