These studies did not show a satisfactory overall survival rate
Background and purpose The aim of short-stem total hip arthroplasty is to preserve proximal bone stock for future revisions , to improve biomechanical reconstruction , and to make minimally invasive approaches easier .
It is therefore being increasingly considered to be a sound alternative to conventional total hip arthroplasty , especially for young and active patients .
However , it is still unknown whether survival rates of short-stem  hips match current st and ards .
We made a systematic summary of reported overall survival after short-stem total hip arthroplasty .
Learning Curve Analysis of the Collum Femoris Preserving Total Hip Surgical Technique
The aim of this study was to determine whether  femoral neck preserving total hip arthroplasty  would become less difficult and more efficient during the first 20 cases and to identify potential pitfalls during the introduction of this procedure . The difficulty and efficiency of the initial 20 procedures performed by four surgeons was prospect ively determined by analysing a total of 68 video recordings using time-action analysis . This method measures the duration and efficiency of individual actions needed for a surgeon to achieve his or her goal . Afterwards , we review ed all actions with a long duration and discussed possible causes of delay with the surgeons to identify possible pitfalls . We found a decrease of difficulty and an increase of efficiency during the first 20 cases and a more consistent execution after the initial five cases . Estimating the correct osteotomy level and stem curvature was often difficult , which result ed in a variable stem position . Radiologic analysis demonstrated a tendency for varus position and increased leg length throughout the series , even after the surgeons demonstrated technical proficiency
These studies did not show a satisfactory overall survival rate
Background and purpose The aim of short-stem total hip arthroplasty is to preserve proximal bone stock for future revisions , to improve biomechanical reconstruction , and to make minimally invasive approaches easier .
It is therefore being increasingly considered to be a sound alternative to conventional total hip arthroplasty , especially for young and active patients .
However , it is still unknown whether survival rates of short-stem  hips match current st and ards .
We made a systematic summary of reported overall survival after short-stem total hip arthroplasty .