Little Finger Crush Injury: When Independent Specialist Hand Therapy Steps In for PIFU
Ms Michelle Razo CHT
Little finger crush injury and the limits of
Patient Initiated Follow-Up
A 59 year old woman sustained a crush injury to her dominant left little finger after it was caught in a gate. She presented to her local Emergency Department, was transferred to a Minor Injuries Unit and the following day was reviewed by Plastic Surgery. They confirmed a comminuted fracture of the distal phalanx, a degloved fingertip with a residual nail remnant and partial amputation. Non-operative management was elected and she was referred for Hand Therapy in the public sector. She attended Ms Razo’s clinic in Northern Ireland at thirteen weeks post-injury for specialist assessment. Despite diligent engagement in the public sector, she was discharged at four and a half months post-injury with ongoing pain, stiffness, altered sensibility and weakness. Over a five month period of private specialist Hand Therapy input, a structured rehabilitation programme restored grip strength to near-symmetry, returned sensibility to within normal and functional limits across most of the injured zone and enabled a return to golf.
A diligent patient discharged with unresolved symptoms
Following her Plastic Surgery review, the patient was referred for public sector Hand Therapy and attended an outpatient clinic biweekly. Her thermoplastic splint was adjusted as healing progressed and she was provided with a home exercise programme, which she completed diligently alongside desensitisation work.
At six weeks post-injury her treating Hand Therapist observed that the skin was healing well though not yet robust, and that the fracture site appeared stable on stressing and was pain-free. She was advised that she could progress to full mobilisation of her little finger, begin incorporating it into functional activities and reduce splint wear for protection and while sleeping. Her home programme was reviewed, one further follow-up was offered and a three month review was planned.
Despite excellent compliance, she continued to experience pain, stiffness, persistent swelling and altered sensibility that were interfering with daily function. At four and a half months post-injury she was discharged from public sector care with the option of patient initiated follow-up. Without specialist re-assessment at this stage, her residual deficits were at risk of being accepted as the new baseline rather than recognised as treatable problems.
Identifying the residual functional deficits
At thirteen weeks post-injury the patient attended Ms Razo’s clinic for specialist assessment. She presented with a clear problem list:
- Little finger stiffness
- Exclusion patterns when using her dominant hand
- Persistent non-fluctuating swelling
- Altered sensibility that was simultaneously hypersensitive and diminished
- Impaired temperature regulation, with the digit frequently feeling cold
- Weak grip
On examination, the scar tissue along the volar pad was shiny, moderately adherent and mildly tender on palpation. Mild swelling persisted throughout the affected digit and she was unable to touch her palm with the little fingertip when making a fist. Grip strength averaged 20 kg on the dominant left hand compared with 27.3 kg on the non-dominant right, with two-point and three-point pinch strength also weaker on the injured side.
Mapping the deficit and agreeing the programme
Little fingertip sensibility was formally assessed using the Semmes-Weinstein Monofilament Test, with each zone of the volar pad mapped independently. The findings are summarised below.
| Zone | Reading | Interpretation |
|---|---|---|
| Proximal volar pad, radial | 4.31 | Diminished Protective Sensation |
| Proximal volar pad, ulnar | 2.83 | Normal Sensation |
| Distal volar pad, radial | 3.61 | Diminished Light Touch |
| Distal volar pad, ulnar | 2.83 | Normal Sensation |
| Most distal fingertip | 4.56 | Loss of Protective Sensation |
Following assessment, Ms Razo and the patient agreed a structured rehabilitation programme targeting:
- Sensory re-education to restore protective sensation and discriminative touch
- Desensitisation to reduce hypersensitivity and improve cold tolerance
- Mobilisation to restore full little finger flexion and palm contact
- Scar therapy to soften and mobilise adherent volar tissue
- Swelling management to address persistent digital swelling
- Progressive strengthening for grip and pinch
- Education to reverse exclusion patterns and reintegrate the digit into daily function
The patient was insightful and excellently compliant throughout, which created the conditions for measurable progress across every domain of her problem list.
Rebuilding sensibility, mobility and strength
Rehabilitation under Ms Razo’s care picked up where public sector Hand Therapy had concluded, continuing for a further five months until eight months post-injury. The programme delivered the following components:
- Graded sensory re-education
- Progressive desensitisation
- Hands-on scar mobilisation paired with patient-led self-massage
- Passive mobilisation to restore full composite flexion
- Night orthosis to optimise digital extension
- Compression strategies to manage residual swelling
- Progressive grip and pinch strengthening aligned to functional goals
- Reintroduction of meaningful activities
Progress was steady and measurable. Little finger stiffness markedly improved, with the patient regaining the ability to touch the tip to the palm when making a fist. Scar hardness reduced and the tightness she had previously felt at the fingertip resolved. Hypersensitivity and loss of sensation both significantly reduced. Cold surfaces, which had previously been aggravating, no longer caused discomfort. By the time of discharge she had returned to golf, an activity she had been unable to resume during her public sector pathway.
Patient outcomes
At eight months post-injury, the patient demonstrated stronger grip strength, restoration of sensibility to within normal and functional limits across most of the injured zone.
| Domain | Presentation | Discharge |
|---|---|---|
| Dominant left grip | 20 kg | 29.3 kg |
| Non-dominant right grip | 27.3 kg | 28 kg |
| Two-point pinch (left) | Weaker than right | Symmetrical with right |
| Three-point pinch (left) | Weaker than right | Symmetrical with right |
| Composite flexion | Tip unable to touch palm | Full tip-to-palm contact |
| Return to sport | Unable to play golf | Returned to golf |
| Zone | Presentation | Discharge |
|---|---|---|
| Proximal volar pad, radial | 4.31 Diminished Protective Sensation | 2.83 Normal Sensation |
| Proximal volar pad, ulnar | 2.83 Normal Sensation | 2.83 Normal Sensation |
| Distal volar pad, radial | 3.61 Diminished Light Touch | 3.61 Diminished Light Touch |
| Distal volar pad, ulnar | 2.83 Normal Sensation | 2.83 Normal Sensation |
| Most distal fingertip | 4.56 Loss of Protective Sensation | 4.31 Diminished Protective Sensation |
What this case demonstrates about specialist Hand Therapy
This case shows that meaningful functional recovery is achievable well beyond the acute phase of a crush injury. At four and a half months post-injury the patient was discharged from public sector care with persistent, treatable deficits across mobility, sensibility, scar condition, swelling and strength. Targeted specialist input addressed each of these in turn, with measurable gains in every domain.
It also illustrates the role of specialist Hand Therapy across the trajectory of a hand injury, not only in the acute phase. Where bone healing is complete but function remains compromised, structured re-assessment and a tailored programme can recover ground that might otherwise be assumed lost.
More broadly, the case raises a question about how patients are discharged from public sector pathways with ongoing symptoms. Patient initiated follow-up assumes that patients will recognise when their recovery has stalled and feel able to re-contact services. Where that assumption does not hold, specialist Hand Therapy provides an accessible point of re-assessment for patients in the subacute or chronic phase of recovery.
Patient initiated follow-up has its place, but it relies on patients recognising when their recovery has plateaued and feeling confident enough to re-contact services. Not every patient has that insight, and some worry about bothering an already stretched service or assume their residual symptoms are simply what they have to live with. We cannot assume that everyone will advocate for themselves.
This patient’s recovery shows that specialist Hand Therapy has a role well beyond the acute phase, including in the subacute and chronic territory. If something does not feel right, or if function has not returned to where it should be, patients should not settle. A specialist assessment can identify whether further input will help, and in many cases it will.
Ms Michelle Razo CHT, Consultant Hand Therapist
Little finger crush injury with distal phalanx fracture and fingertip degloving
FAQs
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A fingertip crush injury occurs when significant force compresses the end of the finger, often causing fractures of the distal phalanx, soft tissue damage, nail bed injury and sometimes partial amputation or degloving of the tip. Even when managed non-operatively, these injuries commonly leave patients with stiffness, altered sensibility, cold intolerance and weakness that persist long after the bone has healed. Specialist Hand Therapy input from a clinician such as Ms Razo addresses these residual functional problems.
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Many fingertip crush injuries are managed without surgery, particularly where the fracture is stable and any tissue loss is small enough to heal on its own. The decision is made by the treating Plastic Surgery or Hand Surgery team based on imaging and clinical examination. Hand Therapy plays a central role in non-operative management, optimising healing, protecting the injury during the early phase, rehabilitating mobility, strength and sensibility thereafter.
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Early Hand Therapy focuses on protection through custom thermoplastic splinting, swelling management and gentle controlled mobilisation. As healing progresses, the focus shifts to scar therapy, desensitisation, sensory re-education, restoring full range of motion and rebuilding grip and pinch strength. Ms Razo tailors each programme to the specific tissues involved and to the patient's functional goals.
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Bone healing typically takes eight to ten weeks, but full functional recovery often extends well beyond this. Many patients continue to experience stiffness, altered sensibility and weakness for several months. With specialist Hand Therapy, measurable gains in sensibility, mobility and strength can continue throughout the first year post-injury and sometimes longer.
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Patient initiated follow-up, or PIFU, is a pathway where patients are discharged from active care and asked to re-contact the service themselves if their symptoms warrant further input. It can work well for confident, well informed patients with clear-cut recovery trajectories. It is less suitable where patients lack insight into their functional limitations, are reluctant to re-contact services or have ongoing issues that they may underestimate. Specialist Hand Therapy can provide an alternative assessment in these situations.
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Yes. Ms Razo accepts self-referrals as well as referrals from GPs, consultants and other clinicians. Patients who feel their recovery has stalled or who have been discharged from public sector care with ongoing problems are welcome to make contact directly.
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No. While early intervention is ideal, meaningful gains can still be achieved well into the subacute and chronic phases. This case demonstrates significant improvement starting at thirteen weeks post-injury. If function is not where you want it to be, specialist assessment can identify what input may still help.
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Crush injuries disrupt small nerve fibres and the local vascular supply, which can leave the digit hypersensitive to touch, intolerant of cold and prone to feeling colder than the rest of the hand. These symptoms often improve with structured desensitisation and sensory re-education delivered by a specialist Hand Therapist.
Experiencing something
similar?
Book a specialist assessment with Ms Razo. No GP referral needed. Same-week appointments are usually available.