TY - JOUR
T1 - CORR Insights®
T2 - What Are the Interobserver and Intraobserver Variability of Gap and Stepoff Measurements in Acetabular Fractures?
AU - Jaarsma, Ruurd L.
PY - 2020/12
Y1 - 2020/12
N2 - Gap and stepoff have commonly been used in orthopaedic fracture assessment since Knirk and Jupiter [7] presented their work on distal radius fractures in young adults in 1986. They described a significantly increased (91%) risk of post-traumatic arthritis in incongruent joints at approximately 7 years in patients in whom a step of more than 2 millimeters was identified on the distal radius surface on plain radiographs. Since then, this 2-millimeter cutoff has been used in daily practice for articular fracture fixation, as well as in other smaller and larger joints. Unfortunately, this is often done without support by further research specific to the joint concerned. House and Jupiter [5] revisited the classic paper [7] in 2009 and self-critiqued the lack of interobserver agreement, among other methodologic flaws.
AB - Gap and stepoff have commonly been used in orthopaedic fracture assessment since Knirk and Jupiter [7] presented their work on distal radius fractures in young adults in 1986. They described a significantly increased (91%) risk of post-traumatic arthritis in incongruent joints at approximately 7 years in patients in whom a step of more than 2 millimeters was identified on the distal radius surface on plain radiographs. Since then, this 2-millimeter cutoff has been used in daily practice for articular fracture fixation, as well as in other smaller and larger joints. Unfortunately, this is often done without support by further research specific to the joint concerned. House and Jupiter [5] revisited the classic paper [7] in 2009 and self-critiqued the lack of interobserver agreement, among other methodologic flaws.
KW - Commentary
KW - Interobserver Variability
KW - Intraobserver Variability
KW - Gap and stepoff values
KW - Gap and stepoff measurements
KW - Acetabular Fractures
UR - http://www.scopus.com/inward/record.url?scp=85097310724&partnerID=8YFLogxK
U2 - 10.1097/CORR.0000000000001448
DO - 10.1097/CORR.0000000000001448
M3 - Comment/debate
C2 - 33275393
AN - SCOPUS:85097310724
SN - 1528-1132
VL - 478
SP - 2809
EP - 2811
JO - Clinical Orthopaedics and Related Research
JF - Clinical Orthopaedics and Related Research
IS - 12
ER -