Strong evidence was found for a decrease in operative time and intraoperative blood loss for MIS THA , with no difference in complication rates and risk for acetabular outliers .
Strong evidence exists that there is no difference in physical functioning , measured either by question naires or by gait analysis .
Moderate evidence was found for a shorter length of hospital stay after MIS THA .
Conflicting evidence was found for a positive effect of MIS THA on pain in the early postoperative period , but that effect diminished after three months postoperatively .
Strong evidence was found for an increase in operative time for CAS THA , and limited evidence was found for a decrease in intraoperative blood loss .
Furthermore , strong evidence was found for no difference in complication rates , as well as for a significantly lower risk for acetabular outliers .
Conclusions The results indicate that MIS THA is a safe surgical procedure , without increases in operative time , blood loss , operative complication rates and component malposition rates .
However , the beneficial effect of MIS THA on functional recovery has to be proven .
The results also indicate that CAS THA , though result ing in an increase in operative time , may have a positive effect on operative blood loss and operative complication rates .
More importantly , the use of CAS results in better positioning of acetabular component of the prosthesis
Background Both minimally invasive surgery ( MIS ) and computer-assisted surgery ( CAS ) for total hip arthroplasty ( THA ) have gained popularity in recent years .
We conducted a qualitative and systematic review to assess the effectiveness of MIS , CAS and computer-assisted MIS for THA .
Comparison of early postoperative functional levels following total hip replacement using minimally invasive versus standard incisions. A prospective randomized blinded trial
Objective : To compare the results of single-incision minimally invasive total hip replacement ( ≤ 10 cm ) to st and ard-incision ( 16 cm ) total hip replacement in the early postoperative period with respect to functional and mobilizing ability ( transfers , mobilizing , walking and stair assessment ) . Setting : Orthopaedic wards of a regional orthopaedic centre . Subjects : Two hundred and nineteen total hip replacement patients were tested between December 2003 and June 2004 . Interventions : Patients were r and omized to either total hip replacement through a minimally invasive ( ≤ 10 cm ) or st and ard incision ( 16 cm ) . A single surgeon performed all procedures using the same type of component fixation . Postoperative physiotherapy assessment and treatment was st and ardized . Analgesia was also st and ardized . All patients , physiotherapy staff and assessors were blinded to the incision used . Main outcome measures : Patients were tested two days post operatively and were assessed for the following activities : transfer from supine to sit , transfer from sitting to st and ing , mobilizing , ascending and descending stairs and weight-bearing . Results : The shorter incision offered no significant improvement in patient ability in relation to transfer from lying to sitting , transfer from sitting to st and ing , mobilizing or weight-bearing . Ascending/descending stairs gave a total time for the minimal incision of 38.7 s against 40.8 s for a st and ard incision . There was no difference in walking velocity between the st and ard incision and minimal incision groups two days post operatively ( minimal incision = 0.26 m/s versus st and ard incision = 0.26 m/s ) or six weeks post operatively ( minimal incision = 0.90 m/s versus st and ard incision = 0.93 m/s ) . There was no difference between groups with respect to walking aids at six-week review . The mean length of stay for the minimally invasive approach was 3.65 days ( SD 2.04 ) against 3.68 days ( SD 2.45 ) for the st and ard approach . This was not significantly different . Conclusion : Total hip replacement performed through a minimally invasive incision of ≤ 10 cm compared with a st and ard incision of 16 cm offers no significant benefit in terms of the rate or ability of patients to mobilize and perform functional tasks necessary for safe discharge
Strong evidence was found for a decrease in operative time and intraoperative blood loss for MIS THA , with no difference in complication rates and risk for acetabular outliers .
Strong evidence exists that there is no difference in physical functioning , measured either by question naires or by gait analysis .
Moderate evidence was found for a shorter length of hospital stay after MIS THA .
Conflicting evidence was found for a positive effect of MIS THA on pain in the early postoperative period , but that effect diminished after three months postoperatively .
Strong evidence was found for an increase in operative time for CAS THA , and limited evidence was found for a decrease in intraoperative blood loss .
Furthermore , strong evidence was found for no difference in complication rates , as well as for a significantly lower risk for acetabular outliers .
Conclusions The results indicate that MIS THA is a safe surgical procedure , without increases in operative time , blood loss , operative complication rates and component malposition rates .
However , the beneficial effect of MIS THA on functional recovery has to be proven .
The results also indicate that CAS THA , though result ing in an increase in operative time , may have a positive effect on operative blood loss and operative complication rates .
More importantly , the use of CAS results in better positioning of acetabular component of the prosthesis
Background Both minimally invasive surgery ( MIS ) and computer-assisted surgery ( CAS ) for total hip arthroplasty ( THA ) have gained popularity in recent years .
We conducted a qualitative and systematic review to assess the effectiveness of MIS , CAS and computer-assisted MIS for THA .