Table 2.

Floor and ceiling of WOOS

Domains	Floor/ceiling effect
	Preoperative	Postoperative
Physical symptoms	None	None
Sport, recreation, and work	5% (1) F	5% (1) C
Lifestyle	5% (1) F	5% (1) C
Emotions	None	10% (2) C
Total WOOS	None	None
CMS	None	None

Note: Floor and ceiling of WOOS given as the percentage of answers with floor or ceiling effect with number in brackets.

Abbreviations: C, ceiling; CMS, Constant–Murley Score; F, floor; WOOS, Western Ontario Osteoarthritis of the shoulder index.