Legg-Calvé-Perthes Disease
Conditions
Keywords
MAKO, Legg-Calvé-Perthes disease, flat hip
Brief summary
Flat hip, also called Legg-Calvé-Perthes disease, is clinically characterized by flattened femoral head, shortened femoral neck, and a center of rotation of the femoral head lower than the apex of the greater trochanter. Joint replacement is difficult, with high intraoperative and postoperative complications. Especially, issues such as unequal limb length, postoperative dislocation, postoperative neurological damage, and prosthesis impact have always plagued clinical practice. The robotic arm-assisted joint replacement technology has been developed and clinically applied for over 10 years, but it was not until the past 3 years that it began to be widely implemented worldwide. Existing research data indicates that robotic arm-assisted joint replacement technology can significantly improve the placement of prostheses and lower limb force lines in patients, and improve their short-term clinical prognosis. However, its application in complex hips, such as flat hip, is limited. More relevant literature is needed to further enrich people's understanding of this technology. In theory, robot assisted technology can solve many challenges faced in flat hip replacement.
Interventions
PROCEDURErobotic arm-assisted total hip replacement
using robotic total hip replacement in patients with Legg-Calvé-Perthes disease
PROCEDUREconventional total hip replacement
applying conventional total hip replacement in patients with Legg-Calvé-Perthes disease
Sponsors
Second Affiliated Hospital, School of Medicine, Zhejiang University
Study design
Allocation
NON_RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE
Eligibility
Sex/Gender
ALL
Age
18 Years to 80 Years
Healthy volunteers
No
Inclusion criteria
* patients with Legg-Calvé-Perthes disease and accept total hip replacement in our center
Exclusion criteria
* infection, cannot complete follow-up
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| inclination angle | 2 days after surgery | The inclination angle in total hip replacement (THR), also called the abduction angle , refers to the angle at which the acetabular cup component is tilted relative to the horizontal plane when viewed on an anteroposterior (AP) pelvic X-ray. |
| anteversion angle | 2 days after surgery | The anteversion angle in total hip replacement (THR) refers to the forward tilt (rotation) of the acetabular cup component around its vertical axis. It determines whether the cup's opening faces more forward or backward relative to the pelvis. |
| Hospital for Special Surgery Score score (HSS score) | before the surgery, 1 week after surgery, 1 month after surgery, 6 months after surgery, 1 year after surgery | The maximum values is 100, and the minimum value is 0. Higher scores means a better outcome. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| operation duration | during the operation | The operation duration (also called operative time or surgical time ) refers to the total time taken to complete a surgical procedure. |
| blood loss | during the operation | The amount of blood loss during the surgery. |
| Visual Analogue Scale score (VAS score) | before the surgery, 1 week after surgery, 1 month after surgery, 6 months after surgery, 1 year after surgery | The maximum value is 10, and the minimum value is 0. Lower score means a better outcome. |
Countries
China
Outcome results
None listed