Short stem total hip arthroplasty for osteonecrosis of the femoral head in patients 60 years or younger: A 3 to 10 year follow-up study

Short stem total hip arthroplasty for osteonecrosis of the femoral head in patients 60 years or younger: analysis of clinical and radiological results using validated scoring instruments at 3 to 10 year follow-up

Status

Active, not recruiting

Phases

Unknown

Study type

Observational

Source

ISRCTN

Registry ID

ISRCTN91336248

Enrollment

Registered

2017-07-04

Start date

2006-01-01

Completion date

Unknown

Last updated

2017-08-28

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

Conditions

Orthopedics

Interventions

Participants undergoing total hip arthroplasties (THAs) due to osteonecrosis of the femoral head as part of their normal surgical care are eligible for this study. Participants have their demographic

Smith and Nephew, Marl, Germany). Either a 32- or 36-mm diameter ceramic femoral head (BIOLOX-forte

CeramTec, Plochingen, Germany) is implanted. A cementless porous-coated acetabular shell (EP-FIT PLUSTM

Smith and Nephew, Marl, Germany), is used in all hips, ranging from 46 to 58 mm. A ceramic liner (BIOLOX-forte

CeramTec, Plochingen, Germany) is placed in all participants. All procedures are performed through a modified Hardinge approach, in supine position. After femoral head resection, at least 10mm from t

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: 1. Indication for implantation of the Nanos short stem due to osteonecrosis of the hip 2. Patients 60 years old or younger 3. Written informed consent

Exclusion criteria

Exclusion criteria: 1. Older than 60 years 2. Had a follow up of less than 3 years after the operation

Design outcomes

Primary

Measure	Time frame
Clinical outcomes are assessed using the Harris hip score (HHS), the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) and the UCLA score at baseline, 1, 3, 6, 12 months and yearly for ten years	—

Secondary

Measure	Time frame
Hip geometry restoration (center of rotation, offset and limb length), bone-implant fixation and osteolysis is measured using radiographs at immediately after the surgery and then at 1, 3, 6, 12 months and yearly for ten years	—

Countries

Italy

Contacts

Public ContactGiuseppe Marongiu

Outcome results

None listed

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