LCF in 2025 (February)
Meso, J. G., Choiniere, J. N., Baiano, M. A., Brusatte, S. L., Canale, J. I., Salgado, L., ... & Pittman, M. (2025). New information on Bonapartenykus (Alvarezsauridae: Theropoda) from the Allen Formation (middle Campanian-lower Maastrichtian) of Río Negro Province, Patagonia, Argentina clarifies the Patagonykinae body plan. PloS one, 20(1), e0308366. [iii] journals.plos.org
Costa, L., Colaço, B., Alves-Pimenta, S., Sargo, R., Pereira, J., Pires, I., ... & Ginja, M. (2025). Hip Dysplasia Induction: Establishment of a New Surgical Model in Rabbits. The Veterinary Journal, 106308. [iv] sciencedirect.com
Strečanská, A. (2024). Possibilities of solving hip joint microinstability in professional dancers. International Journal of Health, New Technologies and Social Work, 19(1), 6-8. [v] ceeol.com
Zhang, H., Deng, W.,
Wang, S., & Yin, Y. (2025). Comparison of the efficacy of the modified SP
approach and the Ganz method for surgical hip dislocation in Pipkin I fractures:
an early follow-up study. BMC Musculoskeletal Disorders, 26(1),
1-10. [vi] bmcmusculoskeletdisord.biomedcentral.com
Dishanth, S.,
Kalaventhan, P., Kirushanthan, V., Madushanger, R., & Wijesinghe, S.
(2025). The Bilateral Symmetrical Neck of Femur Fracture in a Child Following
Trauma, Successfully Treated with Surgical Fixation. Jaffna Medical Journal,
36(2). [vii] jmj.sljol.info
Fukuda, H., Murata, Y.,
Nishimura, H., Nakashima, H., Takada, S., Nakayama, K., ... & Uchida, S.
Associations Between Hip Cartilage Lesions and Morphologic Parameters of Bony
Structures in a Cohort of Asian Patients with Labral Tears Measured Using a
Computed Tomography-Based Software System. Journal of ISAKOS. Volume 0, Issue 0, 100400. [viii] jisakos.com
Agnolin, F. L.,
Chafrat, P., & Álvarez-Herrera, G. P. (2025). New specimens of Patagorhacos
terrificus Agnolín and Chafrat, 2015 (Aves) shed light on the phylogeny and
evolution of the Phorusrhacidae. Historical Biology, 1-13. [ix] tandfonline.com
Carnevale, L.,
Tagliabue, T., Rabbogliatti, V., Bona, R., & Cavallier, F. (2025). Return to
Athletic Activity of a Shetland Pony Mare with Coxofemoral Luxation Treated by
Femoral Head Ostectomy. Animals, 15(4), 497. [x] mdpi.com
Бортулёв П.И., Баскаева Т.В., Познович М.С., Барсуков Д.Б., Поздникин И.Ю., Рустамов А.Н. Сегментарная резекция головки бедренной кости при грубой деформации эпифиза и дисконгруэнтности суставных поверхностей у детей с болезнью Пертеса. Травматология и ортопедия. 10.02.2025. https://doi.org/10.17816/2311-2905-17645.
Bortulev,
P., Baskaeva, T.
V., Poznovich, M.
S., Barsukov, D.
B., Pozdnikin, I.
Y., & Rustamov, A.
(2025). Possibilities of femoral head reduction osteotomy in case of gross
deformation of the epiphysis and discongruence of articular surfaces in
children with Perthes disease. Traumatology and Orthopedics of Russia.
10.02.2025. https://doi.org/10.17816/2311-2905-17645. [xi] scholar.google.com
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Morais, A. Q., de Amorim Cabrita, H. A. B., Godoy, I. R. B., & Skaf, A.
(2025, February). Femoroacetabular Impingement: Preoperative Evaluation and
Postoperative Imaging. In Seminars in Musculoskeletal Radiology (Vol.
29, No. 01, pp. 017-033). Thieme Medical Publishers, Inc. [xii] thieme-connect.com
Firoozabadi, R., &
Collins, A. P. (2025). Novel Hip Containment Technique in Setting of Unstable
Hip Joint in a Trauma Setting: A Case Report. JBJS Case Connector, 15(1),
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R. J. (2025) Labrum Refixation/Reconstruction/Augmentation. In: Surgical Hip
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X., & Leunig, M. (2025) Surgical Hip Dislocation Combined with
Periacetabular Osteotomy. In: Surgical Hip Dislocation: A Comprehensive
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Chiang, C. C., Tang, H.
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factors for insufficient hip distraction for safe central compartment access
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Fournet, A. SURGICAL
MANAGEMENT OF CRANIODORSAL COXOFEMORAL LUXATION IN THREE DOGS AND THREE CATS
USING A NEW ULTRA-HIGH MOLECULAR WEIGHT POLYETHYLENE IMPLANT. 22nd ESVOT CONGRESS I 5 th -7 th October
2023 I Venice (I). ID 55. [xx] researchgate.net
NB! Fair practice / use: copied for the purposes of criticism, review, comment, research and private study in accordance with Copyright Laws of the US: 17 U.S.C. §107; Copyright Law of the EU: Dir. 2001/29/EC, art.5/3a,d; Copyright Law of the RU: ГК РФ ст.1274/1.1-2,7
[i] The purpose of this study was to determine the prevalence
of hip abnormalities detected on 3T MRI in an active pediatric population with
no hip symptoms and to compare with hip abnormalities found in children and
adolescents who underwent an MRI for a hip-related condition. …
The average patient age
was 14.9 years for both cohorts (range 9 to 18 y) and 48% were male. In
the ASx group, incidental labral tears were found in 18%, labral/paralabral
cysts 6%, cartilage lesion 0%, subchondral cyst 0%, ligamentum teres tear 0%,
femoral fibrocystic change 0%, cam lesion 30%, acetabular bone edema 0%,
acetabular rim fracture 0%.
[ii] Sub spine impingement (SSI) is an
increasingly reported entity, symptomatically characterized by anterior groin
pain and limitations in hip-joint range of motion (ROM) brought on by a
low-lying anterior inferior iliac spine (AIIS). …
Along with limitations in ROM, it is
suggested that SSI may be correlated with irreparable labral tears, as well as
injury to the ligamentum teres [6].
6. Shapira J, Yelton MJ, Glein
RM et al. Intraoperative findings and clinical outcomes
associated with arthroscopic management of subspine impingement: a
propensity-matched, controlled study. Arthroscopy. 2021;37:1602–14.
[iii] Posterior to the femoral head, there is a wide, prominent and oblique
groove (Fig 18), which corresponds to the passage of the ligamentum capitis
femoris [62]. This groove is present in Zuolong salleei [110],
although is not seen in other alvarezsaurids.
62. Baumel
JJ. Handbook of Avian Anatomy: nomina anatomica avium. Publications of the
Nuttall Ornithological Club. 1993.
110. Choiniere JN, Clark JM, Forster CA, Xu X. A basal coelurosaur (Dinosauria: Theropoda) from the Late Jurassic (Oxfordian) of the Shishugou Formation in Wucaiwan, People’s Republic of China. J Vertebr Paleontol. 2010;30: 1773–1796. View Article Google Scholar
[iv] Seventeen 6-week-old male New Zealand white rabbits were
randomly assigned to 3 groups: GI (n = 3) – control group, with six normal hips
(NH); GII (n = 7) – seven left instability surgery hips (ISH) and seven right
surgery sham hips (SSH); GIII (n = 7) – seven left instability surgery hips,
followed by hindlimb bandage immobilization for 3 days (ISHI) and seven right
hips without surgery (HWS). The instability surgery was performed by sectioning
the teres ligament and the sham by accessing the capsule without its section.
After 14 weeks following the induction surgery, the rabbits underwent
radiographic and computed tomographic studies and histopathological characterization
of the hip joint based on the severity of cartilage structure and chondrocyte
pathology. In the imaging assessment, the ISHI group was the only group
presenting statistically significant differences in all four parameters,
consistent with HD [Hip dysplasia] development (P < 0.05).
[v] Anatomic arthroscopic ligamentum teres reconstruction for hip instability.
[vi] After removing the residual muscle and soft tissue attachment, the greater trochanter was lifted proximally to expose the hip capsule anteriorly. A “Z” incision was made in the capsule to expose the femoral head fracture site. Following ligament resection, the femoral head was reduced and stabilized using 2–3 subchondral headless Herbert screws or 4 mm cannulated screws as needed.
[vii] In addition to the
medial circumflex and lateral circumflex artery, the head of the femur also
acquires blood supply through the ligamentum teres which is a major blood
supply in childhood (4). Blood supply from the Lateral circumflex artery and
ligamentum teres begin to regress after the age of 4 until 10 years (3).
3. Dial BL, Lark RK. Pediatric proximal femur fractures. J Orthop
[Internet]. 2018 Jun;15(2):529– 35. Available from:
https://linkinghub.elsevier. com/retrieve/pii/S0972978X17304075
4. Palocaren T. Femoral neck fractures in children: A review. Indian J Orthop [Internet]. 2018;52(5):501. Available from: http://www.ijoonline.com/text. asp?2018/52/5/501/240505
[viii] Future studies incorporating additional imaging techniques such as MRI or dynamic assessments could provide a more comprehensive understanding of hip joint pathologies including labral tear, cartilage damage, ligamentum teres tear, capsular condition, and impingement issues.
[ix] … a deep,
well-defined and subcircular-shaped fovea capitis.
[x] The rarity of this condition [Luxation of the
coxofemoral joint] in
equids is attributed to the deep acetabulum, reinforced by the
fibrocartilaginous acetabular rim, robust ligamentous structures (including the
round and accessory ligaments), and substantial musculature that provides
strong stabilization to the coxofemoral joint [2, 10].
2. Toth, F.; Adair,
H.S.; Holder, T.E.C. Femoral head ostectomy to treat a donkey for coxofemoral
luxation. Equine Vet. Educ. 2007, 19, 478–481. [Google
Scholar] [CrossRef]
10. Bennett, D.;
Campbell, J.R.; Rawlinson, J.R. Coxofemoral luxation complicated by upward
fixation of the patella in the pony. Equine Vet. J. 1977, 9, 192–194. [Google Scholar]
[CrossRef]
[xi] After
visualization of the external rotators of the hip, slide osteotomy of the
greater trochanter and its mobilization within the required visualization of
the hip joint capsule with its subsequent Z-shaped dissection were performed.
After intersection of the proper ligament of the femoral head, dislocation was
performed with subsequent separation of the periosteal-capsular-muscular flap
containing the main source of blood supply to the femoral head - the branch of
a. circumflexa femoris medialis. The next stage was segmental resection of the
femoral head (Fig. 1).
Figure 6. Right hip X-rays (the red dashed line marks the condition of the Shenton line): … c — 8 months after surgery, the formation of hip subluxation (deformity progression in the lateral edge of the acetabulum, the Shenton line break more than 5 mm) is observed.
[xii] Direct magnetic resonance arthrography (MRA) at 3T is widely regarded as the diagnostic gold standard for identifying chondrolabral lesions, ligamentum teres lesions, and intra-articular loose bodies.[10] [11]
[xiii] Abstract
Case: A 39-year-old woman who was involved in a motor
vehicle collision sustained a right hip posterior wall acetabular
fracture-dislocation. Subsequent
dislocation was noted at the 4-week point with gross instability and
heterotopic ossification. She underwent a hip containment technique using a
transfemoral neck tunnel through the quadrilateral surface and FiberTape. At
1-year postoperatively, she reported improvement in mobility without evidence
of repeat dislocation.
Conclusion: This technique can be used for unstable
hip sockets with a small posterior wall acetabular fracture to maintain hip
stability. This is the first
reported technique using an open intrapelvic approach to stabilize the hip.
…
In less severe nontraumatic cases, microinstability at the hip may potentially
be improved with ligamentum teres reconstruction 2 , 3 .
The ligamentum teres has also been described as the secondary stabilizer of the hip joint 5 .
[xiv] For short
segmental defects, the ligamentum capitis femoris (ligamentum teres) can be
used to reconstruct the labrum.
The ligamentum teres is cut by a pair of curved parametrium scissors as close as possible to the teardrop to obtain a graft as long as possible.
[xv] These hips
commonly have an aspheric femoral head, intra-articular abnormalities (labrum,
articular cartilage, and ligamentum teres), intra-articular impingement,
extra-articular impingement, and instability from secondary acetabular dysplasia.
[xvi] By raising the hook and simultaneous external rotation, subluxation is achieved, which facilitates the introduction of uterine scissors and allows the tensioned ligamentum teres to be cut.
[xvii] Structures such as the labrum, the ligamentum capitis femoris, and the joint capsule are usually not considered although they can contribute substantially to hip ROM.
[xviii] Table 1. Indications of hip arthroscopy and
surgical procedures.
Round ligament tear n = 67 (9,4%) Debridement and synovectomy (Procedure descriptions)
[xix] This study developed a minimally
invasive technique for stabilization of coxofemoral luxation, guided by
radiographic images, in dog cadavers, being, to the authors’ knowledge, its
first description in literature. The procedure started by defining positionings
of the limb, aiming to guide the introduction of the guide pin (GP) and planning
the technique. Thereafter, the GP was percutaneously introduced into the
greater trochanter of the femur, until it crossed the acetabular far cortical.
After its implantation, a cannulated drill (CD) was inserted, and drilled until
it crossed the acetabular far cortical. The GP was removed, and a toggle pin
was introduced and accommodated in the acetabular far cortical.
The toggle pin (which measured 10.0 mm in length and 2.0 mm in diameter)
had a central hole through which a suture was passed (1-poliglecaprone-25, just
to simulate the technique) (Figure 4B). The toggle pin and suture were inserted
into the CD through an introducer and were accommodated on the medial surface
of the acetabular far cortical (Figure 3I, Figure 4A and Figure 4D).
After passage and proper positioning of the toggle pin, the CD was removed and a metallic button (Figure 4A), with holes through which the two ends of the suture had been passed, was fixed on the lateral surface of the greater trochanter of the femur (Figure 5E). Radiographic images were performed to visualize the positioning of the implants and determine the end of the procedure, in P1 and P2 (Figure 5F).
Figure 4. Photographic images of devices used in the Minimally invasive technique for coxofemoral luxation treatment in dogs: A cadaveric study. Metallic button, in which the sutures were anchored, and which was fixed to the lateral surface of the greater trochanter of the femur (A). The exit of the toggle pin from the cannulated drill (B). Metallic pin with a blunt tip (yellow arrow), used to remove possible obstructions of the cannula; cannulated drill (white arrow), used to drill and conduct the toggle pin into the acetabular far cortical; and guide pin (black arrow), used to guide the perforation of the cannulated drill (C). (This is an open-access article distributed under the terms of the Creative Commons Attribution License CC BY 4.0)
Figure 5. Radiographic images demonstrating the procedure of the Minimally invasive technique for coxofemoral luxation treatment in dogs: A cadaveric study. The surgical procedure was divided into six moments. Moment 5 (M5) is the implantation of the toggle pin, which represents the time interval between M4 and the end of the implantation of the toggle pin and its button (A, B, C, D, E). Moment 6 (M6) is the procedure control radiographic images and comprises the time interval between M5 and the last control image, in P1 and Positioning 2 (P2) (E, F). (This is an open-access article distributed under the terms of the Creative Commons Attribution License CC BY 4.0)
[xx] The surgical
management of hip luxation consists in various hip stabilization techniques,
including capsulorrhaphy, extra-articular iliofemoral suture (3) secured with
anchors (4) and intra-articular replacement of the femoral head ligament with a
synthetic ligament secured by toggle pins (5).
A first femoral tunnel was drilled from the distal base of the great
trochanter to the fovea capitis. A second femoral tunnel was drilled
perpendicularly to the first one in a more distal position. A third tunnel was
drilled through the acetabulum on the round ligament footprint. The cortical
button of the ligament was passed through the acetabular tunnel and securely
positioned on the medial aspect of the acetabulum. The ligament was then passed
in the first femoral tunnel, and the hip was reduced. Then the implant was
passed through the second femoral tunnel, tensioned, and secured by an
interference screw.
3. Meij B, et al: Results of extra-articular stabilisation following
open reduction of coxofemoral luxation in dogs and cats. J Small Anim Pract
33:320-326, 1992.
4. Spranklin D, et al: Comparison of a Suture Anchor and a Toggle Rod
for Use in Toggle Pin Fixation of Coxofemoral Luxations. J Am Anim Hosp Assoc
42:121-126, 2006.
5. Flynn M, et al: Biomechanical Evaluation of a Toggle Pin Technique for Management of Coxofemoral Luxation. Vet Surg 23:311-321, 1994.
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