A Rehabilitation Tool to Determine Patient's Stay in Hospital After Joint Replacement
Phase: NA
Conditions: Total Joint Replacement Surgery
Sponsor: Derek Amanatullah

NCT03777007 
 
October 8, 2021 
A rehabilitation tool to determine patient’s stay in hospital after joint 
replacement  
 
Protocol director: Dr. Derek Amantullah 
Study coordinator: 
 
 
Introduction: SPARTA science has developed a post-operative rehab 
tool allowing the surgeon and the entire healthcare staff to optimize 
care according to the patient’s specific needs. The Sparta Platform 
includes force plate hardware coupled with Sparta Scan 
software that enables quick assessment of an individual’s movement 
and balance within minutes 
 The Sparta Scan takes a comprehensive look into an individual’s 
movement qualities by measuring force production. The magnitude as 
well as efficiency of force production is analyzed to determine the 
progress of the patients on predicted trajectories of recovery, and more 
easily identify and triage those few patients who might have to stay 
longer in hospital facility.  
As part of an integrated clinical care pathway, post-operative scoring of 
likelihood of discharge is an attractive prospect, because it allows 
caregivers to focus on patients who require the most assistance with 
obtaining safe and appropriate postoperative care.  
 
 
Purpose 
To obtain an objective score 
which is patient-centered, data-
driven, and value-based solution 
for post-operative rehabilitation.  
 
Eligibilty criteria 
 Joint replacement surgery, age 
should be more than or equal to 
18 years. 
 

NCT03777007 
 
October 8, 2021 
Study type 
Prospective observational study 
Sample size 
60  
Endpoints 
Primary endpoint: Length of stay 
in hospital. Higher the score, 
shorter is the stay. 
Secondary endpoint: Reliability on 
force plate to co-relate with 
clinical data on data points such 
as discharge location, gait aid use, 
Knee society score(KSS) and range 
of motion(ROM). Time intervals 
for recording Gait aid use, KSS 
and ROM are as - 
1. Gait aid use at the time of 
discharge, 2 weeks follow 
up, 6 weeks follow up, 3 
weeks follow up, 1 year 
follow up and 2 year follow 
up  
2.  Outcome score ( KSS) at 3 
weeks follow up, 1 year 
follow up and 2 year follow 
up 
3. Range of motion at 2 weeks 
follow up, 6 weeks follow 
up, 3 months follow up, 1 
year follow up and 2 year 
follow up 
PROM used 
KOOS JR, PROMIS & KSS 
Budget 
TBD 
Personnel 
IRB submission & data collection 

NCT03777007 
 
October 8, 2021 
Dr. Derek F. Amanatullah, M.D., 
Ph.D. 
Phone: 
 
Email: dfa@stanford.edu   
 
 
Phone : 
 
Email :