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Retrospective Analysis of Risk Factors for Constipation After Primary Knee Arthroplasty

Retrospective Analysis of Risk Factors for Constipation After Primary Knee Arthroplasty

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
ChiCTR
Registry ID
ChiCTR2500112031
Enrollment
Unknown
Registered
2025-11-10
Start date
2025-11-10
Completion date
Unknown
Last updated
2025-11-17

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Constipation

Interventions

none-Constipation group:None

Sponsors

Zhejiang Hospital
Lead Sponsor

Eligibility

Sex/Gender
All
Age
55 Years to 80 Years

Inclusion criteria

Inclusion criteria: (1) Underwent primary unilateral PKA (either TKA or UKA) at Zhejiang Hospital during the study period; (2) Had complete EMR data, including baseline demographic information, perioperative records (e.g., surgical details, medication use), and postoperative outcomes (e.g., defecation frequency, symptom documentation).

Exclusion criteria

Exclusion criteria: (1) They had a history of chronic constipation within 6 months before surgery, defined by the Rome IV criteria (recurrent constipation symptoms for >=3 months, with onset >=6 months before diagnosis) ; (2) They had preexisting severe GI diseases, including intestinal obstruction, inflammatory bowel disease (Crohn’s disease or ulcerative colitis), or GI malignancy (to eliminate preexisting GI dysfunction as a confounder); (3) They developed severe postoperative complications (e.g., prosthetic joint infection, septic shock, acute myocardial infarction, or stroke), as these conditions and their treatments (e.g., vasopressors) independently affect GI motility; (4) They had cognitive impairment (e.g., Alzheimer’s disease, post-stroke cognitive deficit) or psychiatric disorders (e.g., schizophrenia, bipolar disorder) that prevented reliable reporting of defecation symptoms; (5) Merge with end-stage malignant tumors or expected survival of less than 3 months.

Design outcomes

Primary

MeasureTime frame
Generalized Anxiety Disorder-7, GAD-7;

Secondary

MeasureTime frame
Surgical Method ;Anesthesia Method;Whether Rehabilitation Therapy Was Administered;Preoperative Medication Administration;

Countries

China

Contacts

Public ContactYanzhi Ge

Zhejiang Hospital

geyanzhi@163.com+86 155 5812 1886

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Feb 4, 2026