Does warming up improve surgical outcome in total hip arthroplasty?
OBJECTIVE
Warming up prior to surgery has been shown to enhance surgeons' performance during laparoscopic procedures. It is unknown whether or not warming up prior to total hip arthroplasty (THA) will have a similar effect on surgical outcome.


METHODS
We retrospectively evaluated the effect of warming up on the intraoperative outcome of 82 patients who underwent a primary THA with identical implants. The patients were divided equally into two groups. Group 1 (first case of the day) served as "warm-up procedure," while Group 2 (second case of the day) was the "post-warm-up procedure."


RESULTS
We found no statistically significant difference when we compared cup abduction and anteversion angles, femoral offset, postoperative LLD, stem alignment, hip center of rotation and femoral stem canal fill between the two groups (p > 0.05).


CONCLUSIONS
Warming up prior to performing surgery does not make a difference for primary THA when performed by an experienced surgeon. However, these results may not reflect its effect on procedures that require fine motor skills or done by an orthopedic trainee or less experienced surgeons.
Division of Orthopaedic Surgery, McGill University, 1650 Cedar Avenue Room B5.159, Montreal, QC, H3G 1A4, Canada. makhdomas@hotmail.com.
Asim M
AM
Makhdom
Division of Orthopaedic Surgery, McGill University, 1650 Cedar Avenue Room B5.159, Montreal, QC, H3G 1A4, Canada. Abdulaziz.almaawi@mail.mcgill.ca.
AbdulAziz
A
Almaawi
Sackler Medical School, Tel Aviv University, Tel Aviv, Israel. tanzerd@gmail.com.
Dylan
D
Tanzer
Division of Orthopaedic Surgery, McGill University, 1650 Cedar Avenue Room B5.159, Montreal, QC, H3G 1A4, Canada. michael.tanzer@mcgill.ca.
Michael
M
Tanzer
D000368:Aged; D001172:Arthritis, Rheumatoid / Q000601:surgery; D019644:Arthroplasty, Replacement, Hip / Q000592:standards*; D002983:Clinical Competence / Q000592:standards; D005260:Female; D005271:Femur Head Necrosis; D006801:Humans; D008297:Male; D061646:Operative Time; D009985:Orthopedics / Q000592:standards*; D015207:Osteoarthritis, Hip / Q000601:surgery; D011214:Practice, Psychological; D060865:Repetition Priming / Q000502:physiology; D012189:Retrospective Studies; D016896:Treatment Outcome
Preoperative simulation; Preoperative training; Surgical simulation; Total hip arthroplasty; Total hip replacement; Warming up