Study of Parameters of Osteosarcopenia in Patients With Hip Fracture

Trial statusRecruiting
Trial phaseNot listed
Trial typeObservational
Biological sexAll
Age65+
SponsorIstituto Ortopedico Rizzoli

About this trial

The study aims to assess the adequacy of a set of clinical and laboratory investigations for identifying the osteosarcopenia status in patients undergoing a hip replacement for a fragility fracture of the femoral neck. The control group will consist of patients undergoing a hip replacement for osteoarthritis, as the decrease in muscle function and bone quality is less severe in this condition than in osteoporosis.

Eligibility criteria

This trial does not accept healthy volunteers

Qualifiers

Patients who came to observation with femoral neck fracture of possible osteoporotic nature (no or minimal trauma) to be treated with endoprosthesis or hip arthroplasty.

Competent patients who have signed consent to participate in the study (see Informed Consent section of this protocol).

Disqualifiers

Previous osteoporotic fractures

Previous prosthetic surgery for orthopedic diseases

Pre-existing clinical conditions that led to permanent immobility

Neoplastic diseases

Trial population

Hospitalized patients admitted at the 1st Orthopaedic and Traumatology Unit of the Istituto Ortopedico Rizzoli (Bologna, Italy).

Trial design

Design model

Cohort

Time perspective

Prospective

Treatments tested in this trial

  • SARC-F questionnaire

    Diagnostic test

    Assessment of muscle performance based on self-reported information about grip strength, assistance with walking, rising from a chair, climbing stairs, and falls.

  • Bone tissue histology

    Diagnostic test

    Assessment of histomorphology and matrix-structure of tissue samples obtained from the bone resected during the hip prosthesis positioning.

  • Muscle tissue histology

    Diagnostic test

    Assessment of histomorphology and ultrastructure of muscle biopsies taken from the upper portion of the vastus lateralis muscle, which is accessed in the surgical procedure of hip replacement.

  • Myostatin serum levels

    Diagnostic test

    Quantification of circulating myostatin, a muscle-specific biomarker that suppresses muscle growth and bone formation.

  • Insulin-like growth factor 1 (IGF-1) serum levels

    Diagnostic test

    Quantification of circulating IGF-1, a growth factor that promotes muscle growth and osteogenesis.

  • Frequency food questionnaire

    Other intervention

    Assessment of dietary habits based on self-reported information about the monthly- weekly- or daily-frequency consumption of main food groups, including cereals and bread, meat, fish, fruit, vegetable, legumes, dairy products, sweets and snacks, drinks, and dietary supplements.

  • Gut microbiota profiling

    Other intervention

    Assessment of gut microbiome composition on stool samples.

Treatment groups

100 Participants
are divided into 1 treatment group
Group A: Fragility fracture7 interventions

Trial outcomes

Primary outcomes

1

Acceptability of the SARC-F questionnaire

The number of patients able to provide answers divided by the total number of enrolled patients.

Time frame
Within 24 hours of admission
2

Frequency of positive SARC-F questionnaire in cases (fragility fractures) and controls (osteoarthritis)

The percentage of cases (fragility fractures) and controls (osteoarthritis) who exhibit a positive SARC-F questionnaire. The SARC-F is positive and indicates potential sarcopenia if the score point is = or \> 4. For each component of the questionnaire (grip strength, assistance with walking, rising from a chair, climbing stairs, and falls), the score may be 0 (no difficulty; no falls), 1 (some difficulty), and 2 (a lot of difficulties and falls). The total score may range from 0 to 10.

Time frame
Within 24 hours of admission
3

Presence of histological features of osteoporotic bone in cases (fragility fractures) and controls (osteoarthritis)

The percentage of cases (fragility fractures) and controls (osteoarthritis) who exhibit histological features of osteoporotic bone. The presence of osteoporotic bone will be proved based on the following histological features: loss of connected trabecular bone, altered matrix mineralization, the prevalence of adipose tissue compared to bone marrow, presence of osteoclasts.

Time frame
Through study completion, an average of 1 year.
4

Presence of histological features of muscle atrophy in cases (fragility fractures) and controls (osteoarthritis)

The percentage of cases (fragility fractures) and controls (osteoarthritis) who exhibit histological features of muscle atrophy. The presence of muscle atrophy will be proved based on the following histological features: decrease in size and number of type II myofibers, presence of necrosis or fibro-adipose replacement, decrease in satellite cell number.

Time frame
Through study completion, an average of 1 year.

Secondary outcomes

1

Frequency of positive SARC-F questionnaire in patients with and without osteoporotic bone

The percentage of patients with and without osteoporotic bone who exhibit a positive (= or \> 4) or negative (\< 4) SARC-F questionnaire.

Time frame
Through study completion, an average of 1 year.
2

Frequency of positive SARC-F questionnaire in patients with and without muscle atrophy

The percentage of patients with and without muscle atrophy who exhibit a positive (= or \> 4) or negative (\< 4) SARC-F questionnaire.

Time frame
Through study completion, an average of 1 year.
3

Myostatin serum levels in patients with positive and negative SARC-F questionnaire

Mean ± standard error of the mean, median, and min-max range of circulating Myostatin (µg/L) in patients with positive (= or \> 4) and negative (\< 4) SARC-F questionnaire.

Time frame
Through study completion, an average of 1 year.
4

Myostatin serum levels in patients with and without osteoporotic bone

Mean ± standard error of the mean, median, and min-max range of circulating Myostatin (µg/L) in patients with and without osteoporotic bone.

Time frame
Through study completion, an average of 1 year.

Other outcomes

1

Characterization of gut microbiota

The "Next Generation Sequencing" technology will be employed to characterize the overall microbiome profile in stool samples, and bioinformatics used to assess alpha-diversity (ecological diversity of a single sample according to the number of different taxa and their relative abundances) and beta-diversity (differences in microbial community composition between individuals).

Time frame
Through study completion, an average of 1 year.

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