Abstract：
BACKGROUND:First metatarsophalangeal joint (MTPJ) arthrodesis is a common treatment modality for hallux rigidus with successful outcomes. However, the effect of arthrodesis on flexor digitorum longus (FDL) is poorly understood. The purpose of this study was to investigate this effect in a biomechanical model. METHODS:Ten cadaveric trans-knee amputated specimens were studied. Lesser toe range of motion (ROM) and FDL excursion on simulated FDL contraction were measured in the following three scenarios: (1) before 1st MTPJ arthrodesis, (2) after 1st MTPJ arthrodesis, and (3) after the knot of Henry release. RESULTS:1st MTPJ arthrodesis reduced both mean lesser toe ROM and FDL excursion. However, there was improvement in these parameters after the knot of Henry release. CONCLUSIONS:FDL function was reduced following 1st MTPJ arthrodesis. This effect was contributed by soft tissue connections at the knot of Henry, where FDL crosses flexor hallucis longus (FHL). Therefore, with restriction of FHL movement after 1st MTPJ arthrodesis, FDL movement was also restricted. CLINICAL RELEVANCE:This result improved our understanding of 1st MTPJ arthrodesis biomechanics and suggested potential benefits of the knot of Henry release in 1st MTPJ arthrodesis to improve FDL function, thereby decreasing the rate of metatarsalgia and other associated problems.
journal_name
J Orthop Surg (Hong Kong)journal_title
Journal of orthopaedic surgery (Hong Kong)authors
Tan CY,Bin Mohd Fadil MFdoi
10.1177/2309499019826325subject
Has Abstractpub_date
2019-01-01 00:00:00pages
2309499019826325issue
1eissn
1022-5536issn
2309-4990journal_volume
27pub_type
杂志文章abstract：:One hundred and sixty-six cementless primary total hip arthroplasties were performed in 133 patients with porous coated Omnifit prosthesis. The average age was 49.7 years. The mean follow-up period was 8.2 years with a minimum of 5 years. Good to excellent clinical results were achieved in 93% of patients. The overall...
journal_title：Journal of orthopaedic surgery (Hong Kong)
pub_type： 杂志文章
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journal_title：Journal of orthopaedic surgery (Hong Kong)
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journal_title：Journal of orthopaedic surgery (Hong Kong)
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journal_title：Journal of orthopaedic surgery (Hong Kong)
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doi：10.1177/230949901402200212
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abstract：:We report on a 17-year-old man who underwent open reduction and internal fixation for an inferior dislocation of the right hip and displaced fractures of the right femoral head and neck, and antegrade intramedullary nailing for a displaced fracture of the left femoral shaft. In addition, 13 men and 4 women aged 5 to 5...
journal_title：Journal of orthopaedic surgery (Hong Kong)
pub_type： 杂志文章,评审
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abstract：:PURPOSE. To compare the rates of joint hypermobility in patients with and without anterior cruciate ligament (ACL) injury. METHODS. Records of 135 men and 75 women (mean age, 24.6 years) who underwent ACL reconstructions were reviewed and compared with 55 male and 35 female controls with no knee injury. Joint hypermob...
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journal_title：Journal of orthopaedic surgery (Hong Kong)
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abstract：:To clarify the effect of CTLA4-lg on immune rejection of bone grafts, we observed the effect of CTLA4-lg on lymphocyte proliferation of BALB/C mice stimulated by lymphocytes and bone supernatant of C57BL/6 mice. The splenic lymphocytes and bone supernatant of C57BL/6 mice, as the stimulator cells and stimulator antige...
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journal_title：Journal of orthopaedic surgery (Hong Kong)
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journal_title：Journal of orthopaedic surgery (Hong Kong)
pub_type： 杂志文章
doi：10.1177/230949900701500224
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abstract：PURPOSE:To review medium-term results of 49 consecutive patients who underwent Oxford phase-3 medial unicompartmental knee arthroplasty by a single surgeon. METHODS:Records of 28 women (mean age, 71 years) and 21 men (mean age, 68 years) who underwent minimally invasive Oxford phase-3 medial unicompartmental knee arth...
journal_title：Journal of orthopaedic surgery (Hong Kong)
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journal_title：Journal of orthopaedic surgery (Hong Kong)
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journal_title：Journal of orthopaedic surgery (Hong Kong)
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journal_title：Journal of orthopaedic surgery (Hong Kong)
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更新日期：2015-08-01 00:00:00
abstract：BACKGROUND:Juvenile hallux valgus (JHV) frequently results in an impaired quality of life because of pain and deformity. We used a validated clinical score to investigate the efficacy of lateral hemiepiphysiodesis of the first metatarsal base as a treatment for JHV. METHODS:We conducted a prospective, nonrandomized, s...
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pub_type： 临床试验,杂志文章
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journal_title：Journal of orthopaedic surgery (Hong Kong)
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doi：10.1177/230949900701500214
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abstract：PURPOSE:This study analysed the accuracy and safety of the fluoroscopic guided percutaneous screws in the upper thoracic vertebrae (T1-T6). METHODS:Computed tomography scans from 74 patients were retrospectively evaluated between January 2008 and December 2012. Pedicle perforations were classified by two types of grad...
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abstract：:Cervical endoscopic spinal surgery (CESS) is now regularly performed in some centres in the Far East, yet rarely in Europe and the United States. This review describes the application of CESS through anterior and posterior approaches with analysis of the available evidence supporting current techniques. An electronic ...
journal_title：Journal of orthopaedic surgery (Hong Kong)
pub_type： 杂志文章,评审
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