Latest journal articles on bone and joint basic science research from Osteoarthritis and Cartilage, Journal of Orthopaedic Research, Journal of Biomechanics, Connective Tissue Research, Journal of Applied Biomechanics, The Bone & Joint Journal, Journal of Bone and Joint Surgery, Clinical Orthopaedics and Related Research, Acta Orthopaedica, Orthopedic Clinics of North, America, Journal of Orthopaedic Surgery and Research, Orthopedics
By Tessa Balach, MD; Paul C. Baldwin, MD; Jessica Intravia, MD The Journal of the American Academy of Orthopaedic Surgeons (JAAOS) is the #1 clinical review journal of musculoskeletal education in the world. The peer-reviewed articles presented each month in JAAOS critically evaluate and synthesize current information regarding the diagnosis and management of musculoskeletal conditions and document the current state of orthopaedic practice.
The editorial board of JAAOS represents every subspecialty within orthopaedic medicine: Sports Medicine, Trauma, Pediatric Orthopaedics, Hip and Knee, Spine, Shoulder and Elbow, Hand and Wrist, Foot and Ankle, and Musculoskeletal Oncology, as well as areas of general orthopaedic interest. This diversity of topics is reflected in every issue of the Journal.
By Justin S Yang; Matthew B Dobbs BACKGROUND: The most common historical treatment method for congenital vertical talus is extensive soft-tissue release surgery. A minimally invasive treatment approach that relies primarily on serial cast correction was introduced almost ten years ago, with promising early results. The purpose of this study was to assess the long-term outcome of patients with congenital vertical talus managed with the minimally invasive technique and compare them with a cohort treated with extensive soft-tissue release surgery.
METHODS: The records of twenty-seven consecutive patients with vertical talus (forty-two feet) were retrospectively reviewed at a mean of seven years (range, five to 11.3 years) after initial correction was achieved.
BACKGROUND: The purpose of this study was to investigate the relative contributions of two proposed mechanisms, strength imbalance and impaired longitudinal muscle growth, to osseous and postural deformity in a rat model of brachial plexus birth palsy (BPBP).
METHODS: Thirty-two Sprague-Dawley rat pups were divided into four groups on the basis of surgical interventions to induce a strength imbalance, impaired growth, both a strength imbalance and impaired growth (a combined mechanism), and a sham condition in the left forelimb. Maximum passive external shoulder rotation angle (ERmax) was measured bilaterally at four and eight weeks postoperatively. After the rats were killed at eight weeks, the glenohumeral geometry (on microcomputed tomography) and shoulder muscle architecture properties were measured bilaterally.
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Authors: Haider IT, Speirs AD, Frei H
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Growth factors in human serum during operative tibial lengthening with the Ilizarov method.
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Cartilage and meniscal T2 relaxation time as non-invasive biomarker for knee osteoarthritis and cartilage repair procedures.
Osteoarthritis Cartilage. 2013 Jul 26;
Authors: Baum T, Joseph GB, Karampinos DC, Jungmann PM, Link TM, Bauer JS
Abstract
OBJECTIVE: The purpose of this work was to review the current literature on cartilage and meniscal T2 relaxation time.
METHODS: Electronic searches in PubMed were performed to identify relevant studies about T2 relaxation time measurements as non-invasive biomarker for knee osteoarthritis (OA) and cartilage repair procedures.
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Improvement in the detection rate of PJI in total hip arthroplasty through multiple sonicate fluid cultures.
J Orthop Res. 2013 Jul 26;
Authors: Janz V, Wassilew GI, Hasart O, Tohtz S, Perka C
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Rapid in situ chondrocyte death induced by Staphylococcus aureus toxins in a bovine cartilage explant model of septic arthritis.
Osteoarthritis Cartilage. 2013 Jul 26;
Authors: Smith ID, Winstanley JP, Milto KM, Doherty CJ, Czarniak E, Amyes SG, Simpson AH, Hall AC
Abstract
OBJECTIVE: To assess in situ chondrocyte viability following exposure to a laboratory strain and clinical isolates of Staphylococcus aureus.
METHODS: Bovine cartilage explants were cultured in the presence of S. aureus 8325-4 (laboratory strain), clinical S. aureus isolates or non-infected culture medium of pH values 7.4, 6.4 and 5.4. All clinical isolates were isolated from the joint aspirates of patients presenting with S. aureus-induced septic arthritis. At designated time points, in situ chondrocyte viability was assessed within defined regions-of-interest in the axial and coronal plane following live- and dead-cell image acquisition using the fluorescent probes 5-chloromethylfluorescein diacetate and propidium iodide, respectively, and confocal laser-scanning microscopy. Cartilage water content, following S. aureus 8325-4 exposure, was obtained by measuring cartilage wet and dry weights.
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