Przejdź do treściYes. Once a total knee replacement has healed properly, kneeling is generally not considered harmful to the implant. For many patients it is still uncomfortable or difficult because of scar tenderness, numb skin, pressure sensitivity, stiffness or fear of putting weight through the operated knee. Kneeling should not be attempted on a fresh or incompletely healed wound, and the timing of return should reflect wound healing and the individual postoperative plan.
Can kneeling damage a knee replacement?
A common concern is whether direct pressure through the knee can loosen or damage the prosthesis. Available evidence does not indicate that kneeling, once healing is complete, is harmful to a normally functioning total knee replacement. The American Academy of Orthopaedic Surgeons likewise notes that kneeling may be uncomfortable after total knee arthroplasty but is not considered damaging to the implant.
That does not mean every patient will kneel easily. A review of function after total knee replacement found that 60–80% of patients reported some difficulty with kneeling or avoided it. Importantly, the perception that “I cannot kneel” does not always match the person’s actual ability to perform the task when it is assessed directly.
Why can kneeling remain difficult after surgery?
- Scar tenderness — direct pressure on the front of the knee may remain uncomfortable for a long time.
- Skin numbness — small cutaneous sensory branches can be divided during the surgical approach, leaving an area of reduced sensation, often lateral to the scar. This commonly becomes less troublesome with time but may not disappear completely.
- Pressure pain — even a well-functioning knee can remain sensitive on a hard surface.
- Limited range of motion — deeper kneeling requires sufficient flexion, although range of motion does not explain all of the difference between people who kneel and those who avoid it.
- Fear of damaging the implant — some patients never try because they believe kneeling is prohibited.
- Other musculoskeletal limitations — the opposite knee, hip, spine, muscle weakness or difficulty getting back up from the floor may be more limiting than the replaced knee itself.
When can you start trying?
There is no single date that is appropriate for everyone. The key prerequisite is complete wound healing. Do not put direct pressure on a fresh scar, a wound that is still draining, an area with a scab, increasing redness or marked tenderness. Some centres advise waiting several months, while others allow gentle attempts earlier once the wound is fully healed. Differences reflect surgical technique, the course of healing and the rehabilitation plan.
Function and safety are more useful than the calendar alone. Before kneeling, the patient should have stable walking, adequate strength and the ability to lower themselves toward the floor and get up again safely.
How can kneeling be reintroduced safely?
First attempts are best made in a controlled setting with a stable support for the hands. A soft mat, thick pad or cushion can reduce focal pressure on the front of the knee. There is no need to move immediately into a deep kneeling position or stay on the knees for a prolonged period.
A sensible progression is to begin with brief contact on a soft surface, then gradually increase time and load as long as pain and swelling are not increasing. When the main difficulty is getting down to the floor and standing up again rather than kneeling itself, practising those transitions with a physiotherapist can be useful. Studies suggest that instruction and task-specific practice can improve actual kneeling ability.
Is a large amount of knee flexion required?
Greater flexion makes some kneeling positions easier, but it is not the only requirement. Some patients with good range of motion still avoid kneeling because of tenderness or fear, while others can achieve a functional kneel despite only moderate flexion. The flexion angle alone therefore does not predict whether kneeling will be comfortable.
Does the type of implant or surgery matter?
The influence of incision type, implant design and patellar resurfacing has been studied, but the findings do not provide a simple way to predict kneeling ability. A meta-analysis of 36 studies found some associations between surgical technique and kneeling, while also emphasising the need for better randomised evidence. There is no good basis for selecting an implant solely to optimise this one activity.
If regular kneeling is essential for work, gardening, a hobby or religious practice, it is worth discussing this before surgery. It should form part of the conversation about realistic functional goals after knee replacement.
What about kneeling after partial knee replacement?
Kneeling can also be difficult after unicompartmental knee replacement, although available evidence suggests that appropriate instruction may improve the ability to perform the task. Those findings should not be transferred automatically to every total knee replacement because the extent of surgery and biomechanics differ.
When should kneeling be avoided and the knee assessed?
Kneeling should be postponed when the wound has not fully healed or when symptoms suggest a postoperative complication. Earlier assessment is particularly important for:
- drainage from or separation of the wound,
- increasing redness and marked warmth around the operated knee,
- fever together with worsening knee symptoms,
- sudden or rapidly increasing pain and swelling,
- new instability or a clear deterioration in function,
- calf pain and swelling, especially if accompanied by shortness of breath or chest pain, which requires urgent medical assessment.
Kneeling is only one part of returning to function
Patients after knee replacement also ask about driving, work and sport. Each activity requires a different combination of strength, control and tolerance. Someone who can walk several kilometres comfortably may still dislike pressure on the scar while kneeling. Conversely, difficulty kneeling does not by itself mean that the knee replacement is functioning poorly.
Key points for an orthopaedic surgeon
After a well-healed total knee replacement, kneeling itself is not generally considered harmful to the implant. The more common barriers are scar tenderness, numbness, pressure pain, stiffness and fear of damaging the prosthesis. Return should be gradual, initially on a soft surface, and only once the wound has healed. Increasing pain, swelling, wound problems or other warning signs should be assessed before kneeling is resumed.
Back to: Before and After Orthopaedic Surgery
References
- Wylde V, Artz N, Howells N, Blom AW. Kneeling ability after total knee replacement. EFORT Open Rev. 2019;4(7):460–467. DOI: 10.1302/2058-5241.4.180085.
- Nadeem S, Mundi R, Chaudhry H. Surgery-related predictors of kneeling ability following total knee arthroplasty: a systematic review and meta-analysis. Knee Surg Relat Res. 2021;33:36. DOI: 10.1186/s43019-021-00117-z.
- Wallace SJS, Berger RA. Most Patients Can Kneel After Total Knee Arthroplasty. J Arthroplasty. 2019;34(5):898–900. DOI: 10.1016/j.arth.2019.01.047.
- American Academy of Orthopaedic Surgeons. Total Knee Replacement. OrthoInfo. Accessed 10 September 2026.
This information is educational and does not replace an individual medical consultation.
Content prepared by: Tomasz Poboży - orthopaedic surgeon.