Most hip fracture surgeries take between one and two hours of actual operating time, though the range varies substantially depending on the type of procedure. A straightforward internal fixation with screws or a plate can finish in under an hour, while a total hip replacement for a fracture typically runs closer to 80 minutes or longer. Several factors push the clock in either direction, from the patient’s body weight to the choice of anesthesia, and the time spent in the operating room is only one piece of a much bigger timeline that includes the wait for surgery, the hospital stay afterward, and months of recovery.
How Long Each Type of Surgery Takes
Hip fractures are not all treated the same way. The fracture’s location and severity, along with the patient’s age and activity level, determine which operation the surgeon performs. A large randomized trial comparing the three main approaches found clear differences in operating time. Internal fixation, where surgeons use screws or a sliding plate to hold the broken bone in place, averaged about 50 to 53 minutes. Hemiarthroplasty, which replaces the ball of the hip joint while leaving the socket intact, averaged roughly 59 to 62 minutes. Total hip replacement, which replaces both the ball and socket, took the longest at about 80 minutes on average.1Journal of Bone and Joint Surgery. Randomized Comparison of Reduction and Fixation, Bipolar Hemiarthroplasty, and Total Hip Arthroplasty These numbers reflect the time from skin incision to wound closure, not the total time you spend in the operating room, which is longer once you add in anesthesia setup and positioning.
A Cochrane review comparing replacement surgery against internal fixation for fractures outside the hip joint capsule confirmed the pattern: replacement procedures involve more surgical dissection, more blood loss, and longer operating times than pinning or plating the bone back together.2PubMed Central. Replacement arthroplasty versus internal fixation for extracapsular hip fractures in adults The trade-off is that replacement can provide better long-term function for certain fracture types, especially displaced fractures of the femoral neck in older adults. So a longer operation doesn’t mean a worse choice.
There is one scenario where surgery runs much longer: conversion arthroplasty, which means replacing the hip joint after a previous fixation has failed. In one study, these procedures averaged about 206 to 208 minutes, roughly three and a half hours, regardless of whether the original repair used a plate or an intramedullary rod.3PubMed Central. Hip Arthroplasty After Surgical Treatment of Intertrochanteric Hip Fractures Removing old hardware, dealing with altered anatomy, and reconstructing the joint all add time. These revision cases are the exception rather than the rule, but they illustrate how wide the range can be.
Body Weight and Operative Time
One of the strongest predictors of how long your surgery will take is body mass index. A study specifically examining the relationship found that operative time climbed steadily with weight. Patients in the lowest weight category averaged about 114 minutes, while morbidly obese patients averaged roughly 155 minutes, a difference of about 40 minutes.4PubMed Central. The Role of BMI in Hip Fracture Surgery Another study focused on intertrochanteric fractures found a similar trend: patients with a BMI of 30 or higher averaged 96 minutes of surgery compared with 86 minutes for those below that threshold.5Journal of Orthopaedic Trauma. Obesity Is Associated With High Perioperative Complications Among Surgically Treated Intertrochanteric Fracture of the Femur
The reasons are straightforward. More soft tissue means more dissection to reach the bone, more difficulty positioning the patient and the implant, and more time spent achieving adequate visualization under fluoroscopy. The effect is consistent enough that surgical teams expect it and plan for it, but it’s worth knowing if you or a family member is heading into surgery at a higher weight.
How Anesthesia Choice Affects Time in the OR
Hip fracture surgery can be performed under general anesthesia (you’re fully unconscious) or spinal anesthesia (you’re numb from the waist down but awake or lightly sedated). The choice affects more than comfort. A large retrospective study using national surgical quality data found that general anesthesia was associated with an average operative time of about 65 minutes versus 60 minutes for spinal anesthesia.6PubMed. Improved outcomes for spinal versus general anesthesia for hip fracture surgery: a retrospective cohort study of the National Surgical Quality Improvement Program A separate analysis of patients aged 70 and older put the difference at about five extra minutes of operative time under general anesthesia, plus an additional five minutes of post-operative time in the OR, likely spent managing airway recovery.7PubMed. General versus spinal anaesthesia for patients aged 70 years and older with a fracture of the hip
Five minutes sounds trivial, and from the patient’s perspective it largely is. But the same data that showed shorter times with spinal anesthesia also found lower 30-day mortality rates in the spinal group.6PubMed. Improved outcomes for spinal versus general anesthesia for hip fracture surgery: a retrospective cohort study of the National Surgical Quality Improvement Program Whether the anesthesia type itself drives that difference, or whether it’s partly a matter of which patients are selected for each approach, remains debated. But the time-in-OR difference is real and consistent across studies.
Cemented Versus Uncemented Implants
When the surgeon performs a hemiarthroplasty, one decision that directly adds time is whether to cement the implant into the femur or rely on a press-fit design that the bone grows into over time. Three separate meta-analyses of randomized controlled trials all found that cementing adds roughly seven to eight minutes to the procedure.8PubMed Central. The Comparison between Cemented and Uncemented Hemiarthroplasty in Patients with Femoral Neck Fractures: A Systematic Review and Meta-analysis of Randomized Controlled Trials9PubMed Central. Cemented versus uncemented hemiarthroplasty for displaced femoral neck fractures A meta-analysis of randomized controlled trails The extra time comes from mixing and applying the cement and waiting for it to cure before proceeding. In exchange, cemented implants show lower rates of post-operative pain, implant loosening, and the need for revision surgery.8PubMed Central. The Comparison between Cemented and Uncemented Hemiarthroplasty in Patients with Femoral Neck Fractures: A Systematic Review and Meta-analysis of Randomized Controlled Trials Most surgeons consider those eight minutes well spent, especially in older patients with weaker bone quality.
Trainee Involvement and Fluoroscopy Time
If your surgery takes place at a teaching hospital, a surgical resident may perform part or all of the procedure under the attending surgeon’s supervision. A study tracking residents placing a cephalomedullary nail, the standard intramedullary rod used for many hip fractures, found an average operative time of about 66 minutes with an average of 185 fluoroscopy images. The most time-consuming step was navigating the entry point into the femur, which alone took about 14 minutes and required roughly 49 images.10PubMed Central. Fluoroscopy in Hip Fracture Surgery: An Analysis of Resident Utilization For context, an experienced attending surgeon would typically complete the same procedure faster and with fewer X-ray shots. Trainee cases are closely supervised and the outcomes are generally comparable, but the clock tends to run a bit longer.
Does Longer Surgery Increase Complication Risk?
This is where patients and families often feel the most anxiety, and the answer is genuinely nuanced. Longer operations do correlate with higher complication rates, but isolating whether the extra time itself is the problem, versus the conditions that made the surgery longer in the first place, is difficult.
One large matched cohort study defined “prolonged operative duration” as anything above the 75th percentile and found it was associated with worse outcomes.11PubMed Central. Association between operative duration and adverse outcomes after hip fracture surgery: A NSQIP matched cohort study A multicenter retrospective study found that operations exceeding 107 minutes more than doubled the odds of developing a surgical site infection.12PubMed Central. Factors affecting the incidence of surgical site infection after geriatric hip fracture surgery: a retrospective multicenter study And a UK-based systematic review noted that arthroplasty procedures, which inherently take longer and involve more tissue disruption, carry higher infection rates than fixation.13PubMed Central. Surgical site infection after hip fracture surgery: a systematic review and meta-analysis of studies published in the UK
But the relationship isn’t as straightforward as “longer equals worse.” An observational study of over 1,700 patients found that longer surgery duration was a risk factor for deep infection in a simple analysis, but once other patient characteristics were accounted for, duration alone was no longer statistically significant.14PubMed Central. Surgical site infection after hip fracture – mortality and risk factors: an observational cohort study of 1,709 patients In other words, the same factors that make a patient’s surgery take longer, such as obesity, frailty, and medical complexity, also independently raise the risk of complications. The operating time is partly a marker for a harder case, not just a standalone risk factor. That said, unnecessarily prolonged procedures are something surgical teams actively try to avoid, and efficient operating is part of good surgical care.
The Wait Before Surgery
For many patients and families, the more stressful time question isn’t how long the surgery itself takes, but how long you wait for it to begin. Hip fractures are urgent but rarely treated as drop-everything emergencies in the way a ruptured aorta or active hemorrhage would be. Most patients need medical evaluation, imaging, blood work, and sometimes optimization of heart or lung conditions before they can safely go under anesthesia.
A quality improvement study of 477 hip fracture patients found that the average time from hospital arrival to the operating room was about 25 hours. About 60% of patients made it to surgery within 24 hours, while 16% waited longer than 36 hours. The patients who waited longest were usually delayed by medical issues that needed stabilization, while the middle group was more often delayed by logistics like operating room and surgeon availability.15PubMed Central. Factors That Influence Time to Operating Room for Geriatric Hip Fractures: A Quality Improvement Initiative
Clinical guidelines generally recommend operating within 48 hours of admission.16PubMed Central. Timing of Hip-fracture Surgery in Elderly Patients: Literature Review and Recommendations How much each hour of delay matters is a subject of ongoing research. One study found that delays beyond 12 hours from admission were associated with roughly 43% higher odds of 30-day mortality compared with patients operated on within 12 hours.17PubMed Central. Delay to surgery beyond 12 hours is associated with increased hip fracture mortality Another study found that in patients who were medically unfit, mortality climbed with increasing delay and became clearly elevated when surgery was pushed past six days, while medically fit patients tolerated short delays without measurable harm.18PubMed Central. The Impact of Surgical Timing of Hip Fracture on Mortality: Do the Cause and Duration of Delay Matter? The takeaway for families is that some waiting is normal and even necessary, but if the delay stretches beyond a day or two without a clear medical reason, it’s reasonable to ask the care team what’s holding things up.
How Long You Stay in the Hospital Afterward
Once surgery is done, the hospital stay adds considerably more time to the whole experience. Average lengths of stay vary by country and have been trending downward over the past decade and a half. A Swedish study covering tens of thousands of hip fracture patients found the mean stay dropped from about 14 days in 2006 to about 12 days in 2012.19BMJ. Length of hospital stay after hip fracture and short term risk of death after discharge: a total cohort study in Sweden A more recent European study reported a mean stay of about 11 days.20PubMed Central. Hospital Length of Stay After Hip Fracture and It’s Association With 4-Month Mortality—Exploring the Role of Patient Characteristics In Finland, the average stay for hip fracture patients with Alzheimer’s disease was considerably longer, starting at over 50 days in 2005 and falling to about 20 days by 2015, reflecting both improvements in care pathways and the particular challenges of managing cognitively impaired patients.21PubMed Central. Length of Hospital Stay for Hip Fracture and 30-Day Mortality in People With Alzheimer’s Disease: A Cohort Study in Finland
In the United States, acute hospital stays tend to be shorter, often five to seven days, followed by transfer to a rehabilitation facility or skilled nursing unit. The total time in some form of institutional care before going home can still stretch to several weeks. What determines your stay is less about the surgery itself and more about how quickly you can safely mobilize, manage pain, and handle daily activities like getting to the bathroom.
The Recovery Timeline After Discharge
The surgery might take an hour or two, and the hospital stay a couple of weeks, but the real time commitment is rehabilitation. A prospective study tracking functional recovery in adults 65 and older found that lower-body function, including walking speed and leg strength, improved substantially during the first six months after surgery. After six months, improvement plateaued, with no further significant gains between six and twelve months.22PubMed. Timeline of functional recovery after hip fracture in seniors aged 65 and older: a prospective observational analysis Patients’ self-reported physical functioning improved from about three months to nine months, then also leveled off.
One finding from that study that catches people off guard: grip strength, a general marker of overall muscle health, actually declined throughout the entire first year after surgery. This suggests that the broader physical toll of a hip fracture and the immobility surrounding it extends beyond the injured leg.22PubMed. Timeline of functional recovery after hip fracture in seniors aged 65 and older: a prospective observational analysis The practical implication is that rehabilitation shouldn’t focus exclusively on the hip. Maintaining upper-body and overall strength during recovery matters, and the six-month mark is not the finish line for getting back the activity level you had before the fracture. Many patients continue to make subjective progress well into the second year even if the measurable gains in lab testing have plateaued.
A systematic review of rehabilitation after hip fracture confirmed that recovery is shaped by multiple overlapping factors, including the type and intensity of rehab, the patient’s pre-fracture fitness, cognitive status, nutrition, and social support.23Rawal Medical Journal. Gait-related mobility and functional recovery after hip fracture surgery in convalescent rehabilitation settings: A Systematic Review Two patients with the same fracture, the same surgery, and the same operative time can have vastly different recovery trajectories based on these variables.
When the Surgery Takes Unexpectedly Long
Families sitting in a waiting room often start to worry when the clock goes past the time they were quoted. Some common, non-alarming reasons a hip fracture surgery might run longer than expected include difficult fracture patterns that require more manipulation to reduce, osteoporotic bone that doesn’t hold hardware well and needs alternative fixation strategies, and intraoperative findings like additional fracture lines not visible on pre-operative imaging. Occasionally a surgeon starts with a fixation approach, realizes the fracture is not stable enough, and converts to a replacement during the same procedure, which can roughly double the expected time.
It’s also worth remembering that the time a family is told often reflects skin-to-skin operating time, while the total OR time including anesthesia induction, positioning, prepping and draping, and wake-up can add 30 to 60 minutes on either end. A surgery quoted at “about an hour” can easily mean two and a half hours from when you say goodbye at the pre-op area to when the surgeon comes out to speak with you. Asking the surgical team for a realistic total-time estimate, not just the operative-time estimate, can save a lot of unnecessary worry in the waiting room.