Colles Fracture Cast Removal Rehabilitation: Managing Wrist Stiffness and Finger Oedema

A Colles fracture is a classic extra-articular metaphyseal fracture of the distal radius featuring dorsal displacement, dorsal tilt, and radial shortening, commonly resulting from a fall onto an outstretched hand (FOOSH). Following conservative management in a below-elbow plaster cast or percutaneous Kirschner wiring for six weeks, cast removal frequently reveals a stiff, weakened wrist accompanied by brawny finger oedema, shiny skin, and limited composite fist formation. If post-immobilisation physiotherapy is neglected, patients risk chronic functional disability, carpal tunnel compression, and secondary Complex Regional Pain Syndrome (CRPS). Structured rehabilitation systematically addresses soft tissue swelling, restores radiocarpal and midcarpal accessory glides, and safely rebuilds grip strength.

Domestic and Cultural Indian Realities

In Indian households, the wrist and hand are engaged in demanding daily physical tasks. Kneading thick wheat dough (atta) for rotis, rolling flatbreads with a heavy wooden rolling pin (belan), and lifting iron kadai or 5-litre pressure cookers impose intense compressive and torsional loads across the distal radioulnar joint (DRUJ). During the initial 4 weeks following cast removal, these high-force culinary tasks must be delegated or modified; patients should use lightweight stainless steel utensils and avoid twisting heavy wet laundry such as sarees or bedsheets. Personal hygiene routines involving washing with a handheld mug (lota) require pronation and supination; patients should practice smooth forearm rotation rather than forcing terminal range against resistance. When commuting, holding overhead hanging straps on suburban trains or gripping the grab handles of autorickshaws transmits severe shock vibrations; patients should support the recovering arm across the chest in a relaxed position.

Clinical Biomechanics and Anatomical Healing

Cast immobilisation holds the wrist in slight flexion and ulnar deviation (the Cotton-Loder position) to maintain fracture reduction. This prolonged posture causes adaptive shortening of the volar radiocarpal ligaments, contracture of the pronator quadratus, and thickening of the dorsal wrist capsule. Furthermore, immobilisation of the metacarpophalangeal (MCP) joints in extension causes collateral ligament shortening, producing intrinsic muscle tightness. Bone union is typically stable by 6 weeks, but trabecular bone remineralisation takes up to 12 months. Physiotherapy must respect Wolff law by applying gradual, controlled mechanical loading while avoiding sudden torsional stress that could deform residual dorsal tilt.

Validated Special Tests and Differential Diagnosis

Clinical examination incorporates the Bunnell-Littler test to distinguish intrinsic muscle tightness from extrinsic extensor tendon adhesion or PIP capsular contracture. Palpation evaluates the distal radioulnar joint using the Piano Key test, checking for DRUJ instability or triangular fibrocartilage complex (TFCC) disruption. Phalens and Tinel tests are performed at the volar wrist crease to rule out acute carpal tunnel syndrome secondary to median nerve compression within the carpal canal.

Stage-by-Stage Functional Recovery Protocol

Stage 1 (Weeks 0 to 2 post-cast) prioritises oedema reduction and tendon gliding. Interventions include retrograde lymphatic massage from fingertips to axilla, high limb elevation above the heart, active composite fist drills (hook fist, straight fist, full fist), and gentle active wrist flexion-extension within pain-free limits. Stage 2 (Weeks 2 to 6) incorporates gentle radiocarpal joint mobilisations (volar and dorsal glides), active forearm supination and pronation, and light functional activities using therapeutic putty. Stage 3 (Weeks 6 to 12) progresses to progressive resistance training with light dumbbells, eccentric wrist extension loading, and full reintegration into heavy domestic chores.

Red Flags and Urgent Surgical Indicators

Alert your orthopaedic team immediately if you develop persistent burning pain, hypersensitivity to light touch (allodynia), mottled skin discoloration, or excessive temperature asymmetry in the hand, which are hallmark signs of Complex Regional Pain Syndrome (CRPS). Progressive numbness or tingling in the thumb, index, and middle fingers indicates median nerve entrapment requiring urgent decompression. Severe focal tenderness over the anatomical snuffbox suggests an unrecognised concomitant scaphoid fracture.

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