Comments on abstract, title, references

Abstract is written well. Details of the study is clear. Main aim is to know about post operative pain because of over sizing. The title explains the need of study. References are mentioned well.

Comments on introduction/background

Introduction is clear. The oversizing of acetabular cup and its effect on post operative pain is explained.

Comments on methodology

Method is reliable. Proper selection and criteria are chosen. 265 consecutive hip replacements are chosen. Post operative radiographs are analysed. Patient related outcomes are also measured. This brings more value to the study.

Comments on data and results

Results are analysed based on various factors - clinical, radiological and pain scores. Mean difference of cup to head diameter is also measured. These are analysed well.

Comments on discussion and conclusions

Study done well to arrive at the conclusions. This gives more proper idea about the effect of cup size on pain. Discussion is written well and conclusions are clear.