Case Report: A 10-year-old boy with arthrogryposis multiplex congenita (AMC) presented in a "Buddha position" with severely limited mobility, including bilateral hip, severe knee flexion, and clubfoot deformities. Surgical correction involved (1) bilateral femoral derotation and shortening osteotomies, knee capsulotomies, and soft-tissue releases; (2) gradual left knee extension using an external fixator; and (3) distal femoral extension osteotomies and Verebelyi-Ogston procedures for clubfoot correction. Postoperative recovery involved intensive rehabilitation and orthotic support. Improved lower limb alignment enabled the patient to transition from non-ambulatory to assisted walking with knee-ankle-foot orthosis.
Conclusions: This proximal-to-distal approach significantly enhances autonomy in AMC patients with severe deformities.
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http://dx.doi.org/10.2106/JBJS.CC.24.00516 | DOI Listing |
J ISAKOS
March 2025
Erasmus Medical Center Rotterdam, Dr. Molewaterplein 40, 3015 GD Rotterdam. Electronic address:
Introduction: Patellofemoral pain (PFP) is suggested as a precursor of patellofemoral osteoarthritis (PFOA) later in life. This hypothesis is based on shared risk factors for both diseases, such as deviating alignment parameters. In patients with PFOA, certain 2D alignment parameters and 3D shape variations are associated with the progression of PFOA.
View Article and Find Full Text PDFEFORT Open Rev
February 2025
Alkaptonuria is an extremely rare disorder of tyrosine metabolism caused by an autosomal recessive enzymatic deficiency of homogentisic acid (HGA) oxidase, causing its accumulation in collagenous structures, especially in hyaline cartilage. It is characterized by a triad of homogentisic aciduria, bluish-black discoloration of connective tissues (ochronosis) and arthropathy of the spine and large weight-bearing joints. Several clinical manifestations were described including coronary and valvular calcification, aortic stenosis, limited chest expansion, and renal, urethral and prostate calculi as well as ocular and cutaneous pigmentation.
View Article and Find Full Text PDFAm J Sports Med
March 2025
Rush University Medical Center, Chicago, Illinois, USA.
Background: Medial patellofemoral ligament reconstruction is frequently indicated for recurrent lateral patellar instability. The preoperative presence and severity of a J-sign have been associated with poorer postoperative outcomes.
Purpose: To determine the underlying anatomic factors that contribute to the presence, severity, and jumping quality of the J-sign.
BMC Musculoskelet Disord
March 2025
Department of Pediatric Orthopedics, Shengjing Hospital of China Medical University, Shenyang, 110004, China.
Background: Transphyseal hematogenous osteomyelitis(THO) has been considered a potential cause of severe sequelae due to its damage to the growth plate. It has been reported that growth disturbance would take place if the area of involvement exceeds 7%. However, the growth plate seems to have more potential to recover and regain normal function.
View Article and Find Full Text PDFJ Knee Surg
March 2025
Missouri Orthopaedic Institute, University of Missouri, Columbia, United States.
The knee is meniscus-dependent, relying on the tissue's biomechanical properties to maintain joint health and function. Meniscus dysfunction has primarily been assessed by measuring tibiofemoral articular contact areas and pressures, which entail important limitations. Meniscus extrusion, excursion, and hoop strain are dynamic measures of meniscal function, which have potential advantages for clinically applicable biomechanical testing of meniscus.
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